FileDocCategorySizeDatePackage
NotificationPanelView.javaAPI DocAndroid 5.1 API79107Thu Mar 12 22:22:42 GMT 2015com.android.systemui.statusbar.phone

NotificationPanelView

public class NotificationPanelView extends PanelView implements ObservableScrollView.Listener, NotificationStackScrollLayout.OnEmptySpaceClickListener, ExpandableView.OnHeightChangedListener, View.OnClickListener, NotificationStackScrollLayout.OnOverscrollTopChangedListener, KeyguardAffordanceHelper.Callback

Fields Summary
private static final boolean
DEBUG
private static final int
CAP_HEIGHT
private static final int
FONT_HEIGHT
private static final float
HEADER_RUBBERBAND_FACTOR
private static final float
LOCK_ICON_ACTIVE_SCALE
public static final long
DOZE_ANIMATION_DURATION
private KeyguardAffordanceHelper
mAfforanceHelper
private StatusBarHeaderView
mHeader
private com.android.systemui.statusbar.policy.KeyguardUserSwitcher
mKeyguardUserSwitcher
private KeyguardStatusBarView
mKeyguardStatusBar
private com.android.systemui.qs.QSContainer
mQsContainer
private com.android.systemui.qs.QSPanel
mQsPanel
private com.android.keyguard.KeyguardStatusView
mKeyguardStatusView
private ObservableScrollView
mScrollView
private android.widget.TextView
mClockView
private android.view.View
mReserveNotificationSpace
private android.view.View
mQsNavbarScrim
private android.view.View
mNotificationContainerParent
private com.android.systemui.statusbar.stack.NotificationStackScrollLayout
mNotificationStackScroller
private int
mNotificationTopPadding
private boolean
mAnimateNextTopPaddingChange
private int
mTrackingPointer
private android.view.VelocityTracker
mVelocityTracker
private boolean
mQsTracking
private SecureCameraLaunchManager
mSecureCameraLaunchManager
Handles launching the secure camera properly even when other applications may be using the camera hardware.
private boolean
mConflictingQsExpansionGesture
If set, the ongoing touch gesture might both trigger the expansion in {@link PanelView} and the expansion for quick settings.
private boolean
mIntercepting
Whether we are currently handling a motion gesture in #onInterceptTouchEvent, but haven't intercepted yet.
private boolean
mQsExpanded
private boolean
mQsExpandedWhenExpandingStarted
private boolean
mQsFullyExpanded
private boolean
mKeyguardShowing
private boolean
mDozing
private int
mStatusBarState
private float
mInitialHeightOnTouch
private float
mInitialTouchX
private float
mInitialTouchY
private float
mLastTouchX
private float
mLastTouchY
private float
mQsExpansionHeight
private int
mQsMinExpansionHeight
private int
mQsMaxExpansionHeight
private int
mQsPeekHeight
private boolean
mStackScrollerOverscrolling
private boolean
mQsExpansionFromOverscroll
private float
mLastOverscroll
private boolean
mQsExpansionEnabled
private android.animation.ValueAnimator
mQsExpansionAnimator
private com.android.systemui.statusbar.FlingAnimationUtils
mFlingAnimationUtils
private int
mStatusBarMinHeight
private boolean
mUnlockIconActive
private int
mNotificationsHeaderCollideDistance
private int
mUnlockMoveDistance
private float
mEmptyDragAmount
private android.view.animation.Interpolator
mFastOutSlowInInterpolator
private android.view.animation.Interpolator
mFastOutLinearInterpolator
private android.view.animation.Interpolator
mDozeAnimationInterpolator
private android.animation.ObjectAnimator
mClockAnimator
private int
mClockAnimationTarget
private int
mTopPaddingAdjustment
private KeyguardClockPositionAlgorithm
mClockPositionAlgorithm
private KeyguardClockPositionAlgorithm.Result
mClockPositionResult
private boolean
mIsExpanding
private boolean
mBlockTouches
private int
mNotificationScrimWaitDistance
private boolean
mQsExpandImmediate
private boolean
mTwoFingerQsExpandPossible
private int
mScrollYOverride
If we are in a panel collapsing motion, we reset scrollY of our scroll view but still need to take this into account in our panel height calculation.
private boolean
mQsAnimatorExpand
private boolean
mIsLaunchTransitionFinished
private boolean
mIsLaunchTransitionRunning
private Runnable
mLaunchAnimationEndRunnable
private boolean
mOnlyAffordanceInThisMotion
private boolean
mKeyguardStatusViewAnimating
private boolean
mHeaderAnimatingIn
private android.animation.ObjectAnimator
mQsContainerAnimator
private android.animation.ValueAnimator
mQsSizeChangeAnimator
private boolean
mShadeEmpty
private boolean
mQsScrimEnabled
private boolean
mLastAnnouncementWasQuickSettings
private boolean
mQsTouchAboveFalsingThreshold
private int
mQsFalsingThreshold
private float
mKeyguardStatusBarAnimateAlpha
private int
mOldLayoutDirection
private final Runnable
mAnimateKeyguardStatusViewInvisibleEndRunnable
private final Runnable
mAnimateKeyguardStatusViewVisibleEndRunnable
private final Animator.AnimatorListener
mAnimateHeaderSlidingInListener
private final OnLayoutChangeListener
mQsContainerAnimatorUpdater
private final ViewTreeObserver.OnPreDrawListener
mStartHeaderSlidingIn
private final Runnable
mAnimateKeyguardStatusBarInvisibleEndRunnable
private final ValueAnimator.AnimatorUpdateListener
mStatusBarAnimateAlphaListener
private final Runnable
mAnimateKeyguardBottomAreaInvisibleEndRunnable
private final Runnable
mUpdateHeader
Constructors Summary
public NotificationPanelView(android.content.Context context, android.util.AttributeSet attrs)


         
        super(context, attrs);
        setWillNotDraw(!DEBUG);
Methods Summary
public voidanimateCloseQs()

        if (mQsExpansionAnimator != null) {
            if (!mQsAnimatorExpand) {
                return;
            }
            float height = mQsExpansionHeight;
            mQsExpansionAnimator.cancel();
            setQsExpansion(height);
        }
        flingSettings(0 /* vel */, false);
private voidanimateHeaderSlidingIn()

    
       
        mHeaderAnimatingIn = true;
        getViewTreeObserver().addOnPreDrawListener(mStartHeaderSlidingIn);
private voidanimateKeyguardStatusBarIn()


       
        mKeyguardStatusBar.setVisibility(View.VISIBLE);
        mKeyguardStatusBar.setAlpha(0f);
        mKeyguardStatusBar.animate()
                .alpha(1f)
                .setStartDelay(0)
                .setDuration(DOZE_ANIMATION_DURATION)
                .setInterpolator(mDozeAnimationInterpolator)
                .setUpdateListener(mStatusBarAnimateAlphaListener)
                .start();
private voidanimateKeyguardStatusBarOut()


       
        mKeyguardStatusBar.animate()
                .alpha(0f)
                .setStartDelay(mStatusBar.getKeyguardFadingAwayDelay())
                .setDuration(mStatusBar.getKeyguardFadingAwayDuration()/2)
                .setInterpolator(PhoneStatusBar.ALPHA_OUT)
                .setUpdateListener(mStatusBarAnimateAlphaListener)
                .withEndAction(mAnimateKeyguardStatusBarInvisibleEndRunnable)
                .start();
public voidanimateToFullShade(long delay)

        mAnimateNextTopPaddingChange = true;
        mNotificationStackScroller.goToFullShade(delay);
        requestLayout();
private intcalculatePanelHeightQsExpanded()

        float notificationHeight = mNotificationStackScroller.getHeight()
                - mNotificationStackScroller.getEmptyBottomMargin()
                - mNotificationStackScroller.getTopPadding();

        // When only empty shade view is visible in QS collapsed state, simulate that we would have
        // it in expanded QS state as well so we don't run into troubles when fading the view in/out
        // and expanding/collapsing the whole panel from/to quick settings.
        if (mNotificationStackScroller.getNotGoneChildCount() == 0
                && mShadeEmpty) {
            notificationHeight = mNotificationStackScroller.getEmptyShadeViewHeight()
                    + mNotificationStackScroller.getBottomStackPeekSize()
                    + mNotificationStackScroller.getCollapseSecondCardPadding();
        }
        int maxQsHeight = mQsMaxExpansionHeight;

        // If an animation is changing the size of the QS panel, take the animated value.
        if (mQsSizeChangeAnimator != null) {
            maxQsHeight = (int) mQsSizeChangeAnimator.getAnimatedValue();
        }
        float totalHeight = Math.max(
                maxQsHeight + mNotificationStackScroller.getNotificationTopPadding(),
                mStatusBarState == StatusBarState.KEYGUARD
                        ? mClockPositionResult.stackScrollerPadding - mTopPaddingAdjustment
                        : 0)
                + notificationHeight;
        if (totalHeight > mNotificationStackScroller.getHeight()) {
            float fullyCollapsedHeight = maxQsHeight
                    + mNotificationStackScroller.getMinStackHeight()
                    + mNotificationStackScroller.getNotificationTopPadding()
                    - getScrollViewScrollY();
            totalHeight = Math.max(fullyCollapsedHeight, mNotificationStackScroller.getHeight());
        }
        return (int) totalHeight;
private intcalculatePanelHeightShade()

        int emptyBottomMargin = mNotificationStackScroller.getEmptyBottomMargin();
        int maxHeight = mNotificationStackScroller.getHeight() - emptyBottomMargin
                - mTopPaddingAdjustment;
        maxHeight += mNotificationStackScroller.getTopPaddingOverflow();
        return maxHeight;
private floatcalculateQsTopPadding()

        if (mKeyguardShowing
                && (mQsExpandImmediate || mIsExpanding && mQsExpandedWhenExpandingStarted)) {

            // Either QS pushes the notifications down when fully expanded, or QS is fully above the
            // notifications (mostly on tablets). maxNotifications denotes the normal top padding
            // on Keyguard, maxQs denotes the top padding from the quick settings panel. We need to
            // take the maximum and linearly interpolate with the panel expansion for a nice motion.
            int maxNotifications = mClockPositionResult.stackScrollerPadding
                    - mClockPositionResult.stackScrollerPaddingAdjustment
                    - mNotificationTopPadding;
            int maxQs = getTempQsMaxExpansion();
            int max = mStatusBarState == StatusBarState.KEYGUARD
                    ? Math.max(maxNotifications, maxQs)
                    : maxQs;
            return (int) interpolate(getExpandedFraction(),
                    mQsMinExpansionHeight, max);
        } else if (mQsSizeChangeAnimator != null) {
            return (int) mQsSizeChangeAnimator.getAnimatedValue();
        } else if (mKeyguardShowing && mScrollYOverride == -1) {

            // We can only do the smoother transition on Keyguard when we also are not collapsing
            // from a scrolled quick settings.
            return interpolate(getQsExpansionFraction(),
                    mNotificationStackScroller.getIntrinsicPadding() - mNotificationTopPadding,
                    mQsMaxExpansionHeight);
        } else {
            return mQsExpansionHeight;
        }
private voidcancelAnimation()

        if (mQsExpansionAnimator != null) {
            mQsExpansionAnimator.cancel();
        }
public voidcloseQs()

        cancelAnimation();
        setQsExpansion(mQsMinExpansionHeight);
public voidcloseQsDetail()

        mQsPanel.closeDetail();
protected voiddispatchDraw(android.graphics.Canvas canvas)

        super.dispatchDraw(canvas);
        if (DEBUG) {
            Paint p = new Paint();
            p.setColor(Color.RED);
            p.setStrokeWidth(2);
            p.setStyle(Paint.Style.STROKE);
            canvas.drawLine(0, getMaxPanelHeight(), getWidth(), getMaxPanelHeight(), p);
            p.setColor(Color.BLUE);
            canvas.drawLine(0, getExpandedHeight(), getWidth(), getExpandedHeight(), p);
            p.setColor(Color.GREEN);
            canvas.drawLine(0, calculatePanelHeightQsExpanded(), getWidth(),
                    calculatePanelHeightQsExpanded(), p);
            p.setColor(Color.YELLOW);
            canvas.drawLine(0, calculatePanelHeightShade(), getWidth(),
                    calculatePanelHeightShade(), p);
            p.setColor(Color.MAGENTA);
            canvas.drawLine(0, calculateQsTopPadding(), getWidth(),
                    calculateQsTopPadding(), p);
            p.setColor(Color.CYAN);
            canvas.drawLine(0, mNotificationStackScroller.getTopPadding(), getWidth(),
                    mNotificationStackScroller.getTopPadding(), p);
        }
public booleandispatchPopulateAccessibilityEvent(android.view.accessibility.AccessibilityEvent event)

        if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED) {
            event.getText().add(getKeyguardOrLockScreenString());
            mLastAnnouncementWasQuickSettings = false;
            return true;
        }

        return super.dispatchPopulateAccessibilityEvent(event);
public voidexpandWithQs()

        if (mQsExpansionEnabled) {
            mQsExpandImmediate = true;
        }
        expand();
public voidfling(float vel, boolean expand)

        GestureRecorder gr = ((PhoneStatusBarView) mBar).mBar.getGestureRecorder();
        if (gr != null) {
            gr.tag("fling " + ((vel > 0) ? "open" : "closed"), "notifications,v=" + vel);
        }
        super.fling(vel, expand);
protected booleanflingExpands(float vel, float vectorVel)

        boolean expands = super.flingExpands(vel, vectorVel);

        // If we are already running a QS expansion, make sure that we keep the panel open.
        if (mQsExpansionAnimator != null) {
            expands = true;
        }
        return expands;
private booleanflingExpandsQs(float vel)

        if (isBelowFalsingThreshold()) {
            return false;
        }
        if (Math.abs(vel) < mFlingAnimationUtils.getMinVelocityPxPerSecond()) {
            return getQsExpansionFraction() > 0.5f;
        } else {
            return vel > 0;
        }
private voidflingQsWithCurrentVelocity(boolean isCancelMotionEvent)

        float vel = getCurrentVelocity();
        flingSettings(vel, flingExpandsQs(vel) && !isCancelMotionEvent);
private voidflingSettings(float vel, boolean expand)

        flingSettings(vel, expand, null);
private voidflingSettings(float vel, boolean expand, java.lang.Runnable onFinishRunnable)

        float target = expand ? mQsMaxExpansionHeight : mQsMinExpansionHeight;
        if (target == mQsExpansionHeight) {
            mScrollYOverride = -1;
            if (onFinishRunnable != null) {
                onFinishRunnable.run();
            }
            return;
        }
        boolean belowFalsingThreshold = isBelowFalsingThreshold();
        if (belowFalsingThreshold) {
            vel = 0;
        }
        mScrollView.setBlockFlinging(true);
        ValueAnimator animator = ValueAnimator.ofFloat(mQsExpansionHeight, target);
        mFlingAnimationUtils.apply(animator, mQsExpansionHeight, target, vel);
        if (belowFalsingThreshold) {
            animator.setDuration(350);
        }
        animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                setQsExpansion((Float) animation.getAnimatedValue());
            }
        });
        animator.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                mScrollView.setBlockFlinging(false);
                mScrollYOverride = -1;
                mQsExpansionAnimator = null;
                if (onFinishRunnable != null) {
                    onFinishRunnable.run();
                }
            }
        });
        animator.start();
        mQsExpansionAnimator = animator;
        mQsAnimatorExpand = expand;
public voidflingTopOverscroll(float velocity, boolean open)

        mLastOverscroll = 0f;
        setQsExpansion(mQsExpansionHeight);
        flingSettings(!mQsExpansionEnabled && open ? 0f : velocity, open && mQsExpansionEnabled,
                new Runnable() {
            @Override
            public void run() {
                mStackScrollerOverscrolling = false;
                mQsExpansionFromOverscroll = false;
                updateQsState();
            }
        });
protected booleanfullyExpandedClearAllVisible()

        return mNotificationStackScroller.isDismissViewNotGone()
                && mNotificationStackScroller.isScrolledToBottom() && !mQsExpandImmediate;
public floatgetAffordanceFalsingFactor()

        return mStatusBar.isScreenOnComingFromTouch() ? 1.5f : 1.0f;
protected floatgetCannedFlingDurationFactor()

        if (mQsExpanded) {
            return 0.7f;
        } else {
            return 0.6f;
        }
public com.android.systemui.statusbar.KeyguardAffordanceViewgetCenterIcon()

        return mKeyguardBottomArea.getLockIcon();
protected intgetClearAllHeight()

        return mNotificationStackScroller.getDismissViewHeight();
private floatgetCurrentVelocity()

        if (mVelocityTracker == null) {
            return 0;
        }
        mVelocityTracker.computeCurrentVelocity(1000);
        return mVelocityTracker.getYVelocity();
private intgetFalsingThreshold()

        float factor = mStatusBar.isScreenOnComingFromTouch() ? 1.5f : 1.0f;
        return (int) (mQsFalsingThreshold * factor);
private floatgetHeaderExpansionFraction()

        if (!mKeyguardShowing) {
            return getQsExpansionFraction();
        } else {
            return 1f;
        }
private floatgetHeaderTranslation()

        if (mStatusBar.getBarState() == StatusBarState.KEYGUARD
                || mStatusBar.getBarState() == StatusBarState.SHADE_LOCKED) {
            return 0;
        }
        if (mNotificationStackScroller.getNotGoneChildCount() == 0) {
            if (mExpandedHeight / HEADER_RUBBERBAND_FACTOR >= mQsMinExpansionHeight) {
                return 0;
            } else {
                return mExpandedHeight / HEADER_RUBBERBAND_FACTOR - mQsMinExpansionHeight;
            }
        }
        return Math.min(0, mNotificationStackScroller.getTranslationY()) / HEADER_RUBBERBAND_FACTOR;
private java.lang.StringgetKeyguardOrLockScreenString()

        if (mStatusBarState == StatusBarState.KEYGUARD) {
            return getContext().getString(R.string.accessibility_desc_lock_screen);
        } else {
            return getContext().getString(R.string.accessibility_desc_notification_shade);
        }
public com.android.systemui.statusbar.KeyguardAffordanceViewgetLeftIcon()

        return getLayoutDirection() == LAYOUT_DIRECTION_RTL
                ? mKeyguardBottomArea.getCameraView()
                : mKeyguardBottomArea.getPhoneView();
public android.view.ViewgetLeftPreview()

        return getLayoutDirection() == LAYOUT_DIRECTION_RTL
                ? mKeyguardBottomArea.getCameraPreview()
                : mKeyguardBottomArea.getPhonePreview();
protected intgetMaxPanelHeight()

        int min = mStatusBarMinHeight;
        if (mStatusBar.getBarState() != StatusBarState.KEYGUARD
                && mNotificationStackScroller.getNotGoneChildCount() == 0) {
            int minHeight = (int) ((mQsMinExpansionHeight + getOverExpansionAmount())
                    * HEADER_RUBBERBAND_FACTOR);
            min = Math.max(min, minHeight);
        }
        int maxHeight;
        if (mQsExpandImmediate || mQsExpanded || mIsExpanding && mQsExpandedWhenExpandingStarted) {
            maxHeight = calculatePanelHeightQsExpanded();
        } else {
            maxHeight = calculatePanelHeightShade();
        }
        maxHeight = Math.max(maxHeight, min);
        return maxHeight;
private floatgetNotificationsTopY()

        if (mNotificationStackScroller.getNotGoneChildCount() == 0) {
            return getExpandedHeight();
        }
        return mNotificationStackScroller.getNotificationsTopY();
protected floatgetOverExpansionAmount()

        return mNotificationStackScroller.getCurrentOverScrollAmount(true /* top */);
protected floatgetOverExpansionPixels()

        return mNotificationStackScroller.getCurrentOverScrolledPixels(true /* top */);
public floatgetPageWidth()

        return getWidth();
protected floatgetPeekHeight()

        if (mNotificationStackScroller.getNotGoneChildCount() > 0) {
            return mNotificationStackScroller.getPeekHeight();
        } else {
            return mQsMinExpansionHeight * HEADER_RUBBERBAND_FACTOR;
        }
private floatgetQsExpansionFraction()

        return Math.min(1f, (mQsExpansionHeight - mQsMinExpansionHeight)
                / (getTempQsMaxExpansion() - mQsMinExpansionHeight));
public com.android.systemui.statusbar.KeyguardAffordanceViewgetRightIcon()

        return getLayoutDirection() == LAYOUT_DIRECTION_RTL
                ? mKeyguardBottomArea.getPhoneView()
                : mKeyguardBottomArea.getCameraView();
public android.view.ViewgetRightPreview()

        return getLayoutDirection() == LAYOUT_DIRECTION_RTL
                ? mKeyguardBottomArea.getPhonePreview()
                : mKeyguardBottomArea.getCameraPreview();
private intgetScrollViewScrollY()

        if (mScrollYOverride != -1 && !mQsTracking) {
            return mScrollYOverride;
        } else {
            return mScrollView.getScrollY();
        }
private intgetTempQsMaxExpansion()

return
a temporary override of {@link #mQsMaxExpansionHeight}, which is needed when collapsing QS / the panel when QS was scrolled

        int qsTempMaxExpansion = mQsMaxExpansionHeight;
        if (mScrollYOverride != -1) {
            qsTempMaxExpansion -= mScrollYOverride;
        }
        return qsTempMaxExpansion;
private voidhandleQsDown(android.view.MotionEvent event)

        if (event.getActionMasked() == MotionEvent.ACTION_DOWN
                && shouldQuickSettingsIntercept(event.getX(), event.getY(), -1)) {
            mQsTracking = true;
            onQsExpansionStarted();
            mInitialHeightOnTouch = mQsExpansionHeight;
            mInitialTouchY = event.getX();
            mInitialTouchX = event.getY();

            // If we interrupt an expansion gesture here, make sure to update the state correctly.
            if (mIsExpanding) {
                onExpandingFinished();
            }
        }
protected booleanhasConflictingGestures()

        return mStatusBar.getBarState() != StatusBarState.SHADE;
private voidinitVelocityTracker()

        if (mVelocityTracker != null) {
            mVelocityTracker.recycle();
        }
        mVelocityTracker = VelocityTracker.obtain();
public voidinstantExpand()

        super.instantExpand();
        setListening(true);
private static floatinterpolate(float t, float start, float end)

        return (1 - t) * start + t * end;
private booleanisBelowFalsingThreshold()

        return !mQsTouchAboveFalsingThreshold && mStatusBarState == StatusBarState.KEYGUARD;
protected booleanisClearAllVisible()

        return mNotificationStackScroller.isDismissViewVisible();
public booleanisDozing()

        return mDozing;
protected booleanisInContentBounds(float x, float y)

        float yTransformed = y - mNotificationStackScroller.getY();
        float stackScrollerX = mNotificationStackScroller.getX();
        return mNotificationStackScroller.isInContentBounds(yTransformed) && stackScrollerX < x
                && x < stackScrollerX + mNotificationStackScroller.getWidth();
private booleanisInQsArea(float x, float y)

        return (x >= mScrollView.getLeft() && x <= mScrollView.getRight()) &&
                (y <= mNotificationStackScroller.getBottomMostNotificationBottom()
                || y <= mQsContainer.getY() + mQsContainer.getHeight());
private booleanisInSettings()

        return mQsExpanded;
public booleanisLaunchTransitionFinished()

        return mIsLaunchTransitionFinished;
public booleanisLaunchTransitionRunning()

        return mIsLaunchTransitionRunning;
public booleanisQsDetailShowing()

        return mQsPanel.isShowingDetail();
public booleanisQsExpanded()

        return mQsExpanded;
protected booleanisScrolledToBottom()

        if (!isInSettings()) {
            return mStatusBar.getBarState() == StatusBarState.KEYGUARD
                    || mNotificationStackScroller.isScrolledToBottom();
        } else {
            return mScrollView.isScrolledToBottom();
        }
protected booleanisTrackingBlocked()

        return mConflictingQsExpansionGesture && mQsExpanded;
protected voidloadDimens()

        super.loadDimens();
        mNotificationTopPadding = getResources().getDimensionPixelSize(
                R.dimen.notifications_top_padding);
        mFlingAnimationUtils = new FlingAnimationUtils(getContext(), 0.4f);
        mStatusBarMinHeight = getResources().getDimensionPixelSize(
                com.android.internal.R.dimen.status_bar_height);
        mQsPeekHeight = getResources().getDimensionPixelSize(R.dimen.qs_peek_height);
        mNotificationsHeaderCollideDistance =
                getResources().getDimensionPixelSize(R.dimen.header_notifications_collide_distance);
        mUnlockMoveDistance = getResources().getDimensionPixelOffset(R.dimen.unlock_move_distance);
        mClockPositionAlgorithm.loadDimens(getResources());
        mNotificationScrimWaitDistance =
                getResources().getDimensionPixelSize(R.dimen.notification_scrim_wait_distance);
        mQsFalsingThreshold = getResources().getDimensionPixelSize(
                R.dimen.qs_falsing_threshold);
public voidnotifyVisibleChildrenChanged()

        if (mNotificationStackScroller.getNotGoneChildCount() != 0) {
            mReserveNotificationSpace.setVisibility(View.VISIBLE);
        } else {
            mReserveNotificationSpace.setVisibility(View.GONE);
        }
public voidonAnimationToSideEnded()

        mIsLaunchTransitionRunning = false;
        mIsLaunchTransitionFinished = true;
        if (mLaunchAnimationEndRunnable != null) {
            mLaunchAnimationEndRunnable.run();
            mLaunchAnimationEndRunnable = null;
        }
public voidonAnimationToSideStarted(boolean rightPage, float translation, float vel)

        boolean start = getLayoutDirection() == LAYOUT_DIRECTION_RTL ? rightPage : !rightPage;
        mIsLaunchTransitionRunning = true;
        mLaunchAnimationEndRunnable = null;
        float displayDensity = mStatusBar.getDisplayDensity();
        int lengthDp = Math.abs((int) (translation / displayDensity));
        int velocityDp = Math.abs((int) (vel / displayDensity));
        if (start) {
            EventLogTags.writeSysuiLockscreenGesture(
                    EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_SWIPE_DIALER, lengthDp, velocityDp);
            mKeyguardBottomArea.launchPhone();
        } else {
            EventLogTags.writeSysuiLockscreenGesture(
                    EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_SWIPE_CAMERA, lengthDp, velocityDp);
            mSecureCameraLaunchManager.startSecureCameraLaunch();
        }
        mStatusBar.startLaunchTransitionTimeout();
        mBlockTouches = true;
public voidonAttachedToWindow()

        mSecureCameraLaunchManager.create();
public voidonClick(android.view.View v)

        if (v == mHeader) {
            onQsExpansionStarted();
            if (mQsExpanded) {
                flingSettings(0 /* vel */, false /* expand */);
            } else if (mQsExpansionEnabled) {
                flingSettings(0 /* vel */, true /* expand */);
            }
        }
protected voidonConfigurationChanged(android.content.res.Configuration newConfig)

        super.onConfigurationChanged(newConfig);
        mAfforanceHelper.onConfigurationChanged();
public voidonDetachedFromWindow()

        mSecureCameraLaunchManager.destroy();
protected voidonEdgeClicked(boolean right)

        if ((right && getRightIcon().getVisibility() != View.VISIBLE)
                || (!right && getLeftIcon().getVisibility() != View.VISIBLE)
                || isDozing()) {
            return;
        }
        mHintAnimationRunning = true;
        mAfforanceHelper.startHintAnimation(right, new Runnable() {
            @Override
            public void run() {
                mHintAnimationRunning = false;
                mStatusBar.onHintFinished();
            }
        });
        boolean start = getLayoutDirection() == LAYOUT_DIRECTION_RTL ? right : !right;
        if (start) {
            mStatusBar.onPhoneHintStarted();
        } else {
            mStatusBar.onCameraHintStarted();
        }
public voidonEmptySpaceClicked(float x, float y)

        onEmptySpaceClick(x);
protected voidonExpandingFinished()

        super.onExpandingFinished();
        mNotificationStackScroller.onExpansionStopped();
        mIsExpanding = false;
        mScrollYOverride = -1;
        if (mExpandedHeight == 0f) {
            setListening(false);
        } else {
            setListening(true);
        }
        mQsExpandImmediate = false;
        mTwoFingerQsExpandPossible = false;
protected voidonExpandingStarted()

        super.onExpandingStarted();
        mNotificationStackScroller.onExpansionStarted();
        mIsExpanding = true;
        mQsExpandedWhenExpandingStarted = mQsFullyExpanded;
        if (mQsExpanded) {
            onQsExpansionStarted();
        }
protected voidonFinishInflate()

        super.onFinishInflate();
        mHeader = (StatusBarHeaderView) findViewById(R.id.header);
        mHeader.setOnClickListener(this);
        mKeyguardStatusBar = (KeyguardStatusBarView) findViewById(R.id.keyguard_header);
        mKeyguardStatusView = (KeyguardStatusView) findViewById(R.id.keyguard_status_view);
        mQsContainer = (QSContainer) findViewById(R.id.quick_settings_container);
        mQsPanel = (QSPanel) findViewById(R.id.quick_settings_panel);
        mClockView = (TextView) findViewById(R.id.clock_view);
        mScrollView = (ObservableScrollView) findViewById(R.id.scroll_view);
        mScrollView.setListener(this);
        mScrollView.setFocusable(false);
        mReserveNotificationSpace = findViewById(R.id.reserve_notification_space);
        mNotificationContainerParent = findViewById(R.id.notification_container_parent);
        mNotificationStackScroller = (NotificationStackScrollLayout)
                findViewById(R.id.notification_stack_scroller);
        mNotificationStackScroller.setOnHeightChangedListener(this);
        mNotificationStackScroller.setOverscrollTopChangedListener(this);
        mNotificationStackScroller.setOnEmptySpaceClickListener(this);
        mNotificationStackScroller.setScrollView(mScrollView);
        mFastOutSlowInInterpolator = AnimationUtils.loadInterpolator(getContext(),
                android.R.interpolator.fast_out_slow_in);
        mFastOutLinearInterpolator = AnimationUtils.loadInterpolator(getContext(),
                android.R.interpolator.fast_out_linear_in);
        mDozeAnimationInterpolator = AnimationUtils.loadInterpolator(getContext(),
                android.R.interpolator.linear_out_slow_in);
        mKeyguardBottomArea = (KeyguardBottomAreaView) findViewById(R.id.keyguard_bottom_area);
        mQsNavbarScrim = findViewById(R.id.qs_navbar_scrim);
        mAfforanceHelper = new KeyguardAffordanceHelper(this, getContext());
        mSecureCameraLaunchManager =
                new SecureCameraLaunchManager(getContext(), mKeyguardBottomArea);

        // recompute internal state when qspanel height changes
        mQsContainer.addOnLayoutChangeListener(new OnLayoutChangeListener() {
            @Override
            public void onLayoutChange(View v, int left, int top, int right,
                    int bottom, int oldLeft, int oldTop, int oldRight,
                    int oldBottom) {
                final int height = bottom - top;
                final int oldHeight = oldBottom - oldTop;
                if (height != oldHeight) {
                    onScrollChanged();
                }
            }
        });
public voidonHeightChanged(com.android.systemui.statusbar.ExpandableView view)


        // Block update if we are in quick settings and just the top padding changed
        // (i.e. view == null).
        if (view == null && mQsExpanded) {
            return;
        }
        requestPanelHeightUpdate();
protected voidonHeightUpdated(float expandedHeight)

        if (!mQsExpanded || mQsExpandImmediate || mIsExpanding && mQsExpandedWhenExpandingStarted) {
            positionClockAndNotifications();
        }
        if (mQsExpandImmediate || mQsExpanded && !mQsTracking && mQsExpansionAnimator == null
                && !mQsExpansionFromOverscroll) {
            float t;
            if (mKeyguardShowing) {

                // On Keyguard, interpolate the QS expansion linearly to the panel expansion
                t = expandedHeight / getMaxPanelHeight();
            } else {

                // In Shade, interpolate linearly such that QS is closed whenever panel height is
                // minimum QS expansion + minStackHeight
                float panelHeightQsCollapsed = mNotificationStackScroller.getIntrinsicPadding()
                        + mNotificationStackScroller.getMinStackHeight();
                float panelHeightQsExpanded = calculatePanelHeightQsExpanded();
                t = (expandedHeight - panelHeightQsCollapsed)
                        / (panelHeightQsExpanded - panelHeightQsCollapsed);
            }
            setQsExpansion(mQsMinExpansionHeight
                    + t * (getTempQsMaxExpansion() - mQsMinExpansionHeight));
        }
        mNotificationStackScroller.setStackHeight(expandedHeight);
        updateHeader();
        updateUnlockIcon();
        updateNotificationTranslucency();
        if (DEBUG) {
            invalidate();
        }
public booleanonInterceptTouchEvent(android.view.MotionEvent event)

        if (mBlockTouches) {
            return false;
        }
        resetDownStates(event);
        int pointerIndex = event.findPointerIndex(mTrackingPointer);
        if (pointerIndex < 0) {
            pointerIndex = 0;
            mTrackingPointer = event.getPointerId(pointerIndex);
        }
        final float x = event.getX(pointerIndex);
        final float y = event.getY(pointerIndex);

        switch (event.getActionMasked()) {
            case MotionEvent.ACTION_DOWN:
                mIntercepting = true;
                mInitialTouchY = y;
                mInitialTouchX = x;
                initVelocityTracker();
                trackMovement(event);
                if (shouldQuickSettingsIntercept(mInitialTouchX, mInitialTouchY, 0)) {
                    getParent().requestDisallowInterceptTouchEvent(true);
                }
                if (mQsExpansionAnimator != null) {
                    onQsExpansionStarted();
                    mInitialHeightOnTouch = mQsExpansionHeight;
                    mQsTracking = true;
                    mIntercepting = false;
                    mNotificationStackScroller.removeLongPressCallback();
                }
                break;
            case MotionEvent.ACTION_POINTER_UP:
                final int upPointer = event.getPointerId(event.getActionIndex());
                if (mTrackingPointer == upPointer) {
                    // gesture is ongoing, find a new pointer to track
                    final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1;
                    mTrackingPointer = event.getPointerId(newIndex);
                    mInitialTouchX = event.getX(newIndex);
                    mInitialTouchY = event.getY(newIndex);
                }
                break;

            case MotionEvent.ACTION_MOVE:
                final float h = y - mInitialTouchY;
                trackMovement(event);
                if (mQsTracking) {

                    // Already tracking because onOverscrolled was called. We need to update here
                    // so we don't stop for a frame until the next touch event gets handled in
                    // onTouchEvent.
                    setQsExpansion(h + mInitialHeightOnTouch);
                    trackMovement(event);
                    mIntercepting = false;
                    return true;
                }
                if (Math.abs(h) > mTouchSlop && Math.abs(h) > Math.abs(x - mInitialTouchX)
                        && shouldQuickSettingsIntercept(mInitialTouchX, mInitialTouchY, h)) {
                    mQsTracking = true;
                    onQsExpansionStarted();
                    mInitialHeightOnTouch = mQsExpansionHeight;
                    mInitialTouchY = y;
                    mInitialTouchX = x;
                    mIntercepting = false;
                    mNotificationStackScroller.removeLongPressCallback();
                    return true;
                }
                break;

            case MotionEvent.ACTION_CANCEL:
            case MotionEvent.ACTION_UP:
                trackMovement(event);
                if (mQsTracking) {
                    flingQsWithCurrentVelocity(
                            event.getActionMasked() == MotionEvent.ACTION_CANCEL);
                    mQsTracking = false;
                }
                mIntercepting = false;
                break;
        }
        return super.onInterceptTouchEvent(event);
protected voidonLayout(boolean changed, int left, int top, int right, int bottom)

        super.onLayout(changed, left, top, right, bottom);

        // Update Clock Pivot
        mKeyguardStatusView.setPivotX(getWidth() / 2);
        mKeyguardStatusView.setPivotY((FONT_HEIGHT - CAP_HEIGHT) / 2048f * mClockView.getTextSize());

        // Calculate quick setting heights.
        int oldMaxHeight = mQsMaxExpansionHeight;
        mQsMinExpansionHeight = mKeyguardShowing ? 0 : mHeader.getCollapsedHeight() + mQsPeekHeight;
        mQsMaxExpansionHeight = mHeader.getExpandedHeight() + mQsContainer.getDesiredHeight();
        positionClockAndNotifications();
        if (mQsExpanded && mQsFullyExpanded) {
            mQsExpansionHeight = mQsMaxExpansionHeight;
            requestScrollerTopPaddingUpdate(false /* animate */);
            requestPanelHeightUpdate();

            // Size has changed, start an animation.
            if (mQsMaxExpansionHeight != oldMaxHeight) {
                startQsSizeChangeAnimation(oldMaxHeight, mQsMaxExpansionHeight);
            }
        } else if (!mQsExpanded) {
            setQsExpansion(mQsMinExpansionHeight + mLastOverscroll);
        }
        mNotificationStackScroller.setStackHeight(getExpandedHeight());
        updateHeader();
        mNotificationStackScroller.updateIsSmallScreen(
                mHeader.getCollapsedHeight() + mQsPeekHeight);

        // If we are running a size change animation, the animation takes care of the height of
        // the container. However, if we are not animating, we always need to make the QS container
        // the desired height so when closing the QS detail, it stays smaller after the size change
        // animation is finished but the detail view is still being animated away (this animation
        // takes longer than the size change animation).
        if (mQsSizeChangeAnimator == null) {
            mQsContainer.setHeightOverride(mQsContainer.getDesiredHeight());
        }
public voidonOverscrollTopChanged(float amount, boolean isRubberbanded)

        cancelAnimation();
        if (!mQsExpansionEnabled) {
            amount = 0f;
        }
        float rounded = amount >= 1f ? amount : 0f;
        mStackScrollerOverscrolling = rounded != 0f && isRubberbanded;
        mQsExpansionFromOverscroll = rounded != 0f;
        mLastOverscroll = rounded;
        updateQsState();
        setQsExpansion(mQsMinExpansionHeight + rounded);
public voidonOverscrolled(float lastTouchX, float lastTouchY, int amount)

        if (mIntercepting && shouldQuickSettingsIntercept(lastTouchX, lastTouchY,
                -1 /* yDiff: Not relevant here */)) {
            mQsTracking = true;
            onQsExpansionStarted(amount);
            mInitialHeightOnTouch = mQsExpansionHeight;
            mInitialTouchY = mLastTouchY;
            mInitialTouchX = mLastTouchX;
        }
private voidonQsExpansionStarted()

        onQsExpansionStarted(0);
private voidonQsExpansionStarted(int overscrollAmount)

        cancelAnimation();

        // Reset scroll position and apply that position to the expanded height.
        float height = mQsExpansionHeight - mScrollView.getScrollY() - overscrollAmount;
        if (mScrollView.getScrollY() != 0) {
            mScrollYOverride = mScrollView.getScrollY();
        }
        mScrollView.scrollTo(0, 0);
        setQsExpansion(height);
        requestPanelHeightUpdate();
private voidonQsTouch(android.view.MotionEvent event)

        int pointerIndex = event.findPointerIndex(mTrackingPointer);
        if (pointerIndex < 0) {
            pointerIndex = 0;
            mTrackingPointer = event.getPointerId(pointerIndex);
        }
        final float y = event.getY(pointerIndex);
        final float x = event.getX(pointerIndex);

        switch (event.getActionMasked()) {
            case MotionEvent.ACTION_DOWN:
                mQsTracking = true;
                mInitialTouchY = y;
                mInitialTouchX = x;
                onQsExpansionStarted();
                mInitialHeightOnTouch = mQsExpansionHeight;
                initVelocityTracker();
                trackMovement(event);
                break;

            case MotionEvent.ACTION_POINTER_UP:
                final int upPointer = event.getPointerId(event.getActionIndex());
                if (mTrackingPointer == upPointer) {
                    // gesture is ongoing, find a new pointer to track
                    final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1;
                    final float newY = event.getY(newIndex);
                    final float newX = event.getX(newIndex);
                    mTrackingPointer = event.getPointerId(newIndex);
                    mInitialHeightOnTouch = mQsExpansionHeight;
                    mInitialTouchY = newY;
                    mInitialTouchX = newX;
                }
                break;

            case MotionEvent.ACTION_MOVE:
                final float h = y - mInitialTouchY;
                setQsExpansion(h + mInitialHeightOnTouch);
                if (h >= getFalsingThreshold()) {
                    mQsTouchAboveFalsingThreshold = true;
                }
                trackMovement(event);
                break;

            case MotionEvent.ACTION_UP:
            case MotionEvent.ACTION_CANCEL:
                mQsTracking = false;
                mTrackingPointer = -1;
                trackMovement(event);
                float fraction = getQsExpansionFraction();
                if ((fraction != 0f || y >= mInitialTouchY)
                        && (fraction != 1f || y <= mInitialTouchY)) {
                    flingQsWithCurrentVelocity(
                            event.getActionMasked() == MotionEvent.ACTION_CANCEL);
                } else {
                    mScrollYOverride = -1;
                }
                if (mVelocityTracker != null) {
                    mVelocityTracker.recycle();
                    mVelocityTracker = null;
                }
                break;
        }
public voidonReset(com.android.systemui.statusbar.ExpandableView view)
public voidonRtlPropertiesChanged(int layoutDirection)

        if (layoutDirection != mOldLayoutDirection) {
            mAfforanceHelper.onRtlPropertiesChanged();
            mOldLayoutDirection = layoutDirection;
        }
public voidonScreenTurnedOn()


       
        mKeyguardStatusView.refreshTime();
public voidonScrollChanged()

        if (mQsExpanded) {
            requestScrollerTopPaddingUpdate(false /* animate */);
            requestPanelHeightUpdate();
        }
public voidonSwipingStarted()

        mSecureCameraLaunchManager.onSwipingStarted();
        requestDisallowInterceptTouchEvent(true);
        mOnlyAffordanceInThisMotion = true;
public booleanonTouchEvent(android.view.MotionEvent event)

        if (mBlockTouches) {
            return false;
        }
        resetDownStates(event);
        if ((!mIsExpanding || mHintAnimationRunning)
                && !mQsExpanded
                && mStatusBar.getBarState() != StatusBarState.SHADE) {
            mAfforanceHelper.onTouchEvent(event);
        }
        if (mOnlyAffordanceInThisMotion) {
            return true;
        }
        if (event.getActionMasked() == MotionEvent.ACTION_DOWN && getExpandedFraction() == 1f
                && mStatusBar.getBarState() != StatusBarState.KEYGUARD && !mQsExpanded
                && mQsExpansionEnabled) {

            // Down in the empty area while fully expanded - go to QS.
            mQsTracking = true;
            mConflictingQsExpansionGesture = true;
            onQsExpansionStarted();
            mInitialHeightOnTouch = mQsExpansionHeight;
            mInitialTouchY = event.getX();
            mInitialTouchX = event.getY();
        }
        if (mExpandedHeight != 0) {
            handleQsDown(event);
        }
        if (!mQsExpandImmediate && mQsTracking) {
            onQsTouch(event);
            if (!mConflictingQsExpansionGesture) {
                return true;
            }
        }
        if (event.getActionMasked() == MotionEvent.ACTION_CANCEL
                || event.getActionMasked() == MotionEvent.ACTION_UP) {
            mConflictingQsExpansionGesture = false;
        }
        if (event.getActionMasked() == MotionEvent.ACTION_DOWN && mExpandedHeight == 0
                && mQsExpansionEnabled) {
            mTwoFingerQsExpandPossible = true;
        }
        if (mTwoFingerQsExpandPossible && event.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN
                && event.getPointerCount() == 2
                && event.getY(event.getActionIndex()) < mStatusBarMinHeight) {
            mQsExpandImmediate = true;
            requestPanelHeightUpdate();

            // Normally, we start listening when the panel is expanded, but here we need to start
            // earlier so the state is already up to date when dragging down.
            setListening(true);
        }
        super.onTouchEvent(event);
        return true;
protected voidonTrackingStarted()

        super.onTrackingStarted();
        if (mQsFullyExpanded) {
            mQsExpandImmediate = true;
        }
        if (mStatusBar.getBarState() == StatusBarState.KEYGUARD
                || mStatusBar.getBarState() == StatusBarState.SHADE_LOCKED) {
            mAfforanceHelper.animateHideLeftRightIcon();
        }
protected voidonTrackingStopped(boolean expand)

        super.onTrackingStopped(expand);
        if (expand) {
            mNotificationStackScroller.setOverScrolledPixels(
                    0.0f, true /* onTop */, true /* animate */);
        }
        if (expand && (mStatusBar.getBarState() == StatusBarState.KEYGUARD
                || mStatusBar.getBarState() == StatusBarState.SHADE_LOCKED)) {
            if (!mHintAnimationRunning) {
                mAfforanceHelper.reset(true);
            }
        }
        if (!expand && (mStatusBar.getBarState() == StatusBarState.KEYGUARD
                || mStatusBar.getBarState() == StatusBarState.SHADE_LOCKED)) {
            KeyguardAffordanceView lockIcon = mKeyguardBottomArea.getLockIcon();
            lockIcon.setImageAlpha(0.0f, true, 100, mFastOutLinearInterpolator, null);
            lockIcon.setImageScale(2.0f, true, 100, mFastOutLinearInterpolator);
        }
public voidopenQs()

        cancelAnimation();
        if (mQsExpansionEnabled) {
            setQsExpansion(mQsMaxExpansionHeight);
        }
private voidpositionClockAndNotifications()
Positions the clock and notifications dynamically depending on how many notifications are showing.

        boolean animate = mNotificationStackScroller.isAddOrRemoveAnimationPending();
        int stackScrollerPadding;
        if (mStatusBarState != StatusBarState.KEYGUARD) {
            int bottom = mHeader.getCollapsedHeight();
            stackScrollerPadding = mStatusBarState == StatusBarState.SHADE
                    ? bottom + mQsPeekHeight + mNotificationTopPadding
                    : mKeyguardStatusBar.getHeight() + mNotificationTopPadding;
            mTopPaddingAdjustment = 0;
        } else {
            mClockPositionAlgorithm.setup(
                    mStatusBar.getMaxKeyguardNotifications(),
                    getMaxPanelHeight(),
                    getExpandedHeight(),
                    mNotificationStackScroller.getNotGoneChildCount(),
                    getHeight(),
                    mKeyguardStatusView.getHeight(),
                    mEmptyDragAmount);
            mClockPositionAlgorithm.run(mClockPositionResult);
            if (animate || mClockAnimator != null) {
                startClockAnimation(mClockPositionResult.clockY);
            } else {
                mKeyguardStatusView.setY(mClockPositionResult.clockY);
            }
            updateClock(mClockPositionResult.clockAlpha, mClockPositionResult.clockScale);
            stackScrollerPadding = mClockPositionResult.stackScrollerPadding;
            mTopPaddingAdjustment = mClockPositionResult.stackScrollerPaddingAdjustment;
        }
        mNotificationStackScroller.setIntrinsicPadding(stackScrollerPadding);
        requestScrollerTopPaddingUpdate(animate);
public voidrequestDisallowInterceptTouchEvent(boolean disallowIntercept)


        // Block request when interacting with the scroll view so we can still intercept the
        // scrolling when QS is expanded.
        if (mScrollView.isHandlingTouchEvent()) {
            return;
        }
        super.requestDisallowInterceptTouchEvent(disallowIntercept);
private voidrequestScrollerTopPaddingUpdate(boolean animate)

        mNotificationStackScroller.updateTopPadding(calculateQsTopPadding(),
                mScrollView.getScrollY(),
                mAnimateNextTopPaddingChange || animate,
                mKeyguardShowing
                        && (mQsExpandImmediate || mIsExpanding && mQsExpandedWhenExpandingStarted));
        mAnimateNextTopPaddingChange = false;
private voidresetDownStates(android.view.MotionEvent event)

        if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
            mOnlyAffordanceInThisMotion = false;
            mQsTouchAboveFalsingThreshold = mQsFullyExpanded;
        }
public voidresetViews()

        mIsLaunchTransitionFinished = false;
        mBlockTouches = false;
        mUnlockIconActive = false;
        mAfforanceHelper.reset(true);
        closeQs();
        mStatusBar.dismissPopups();
        mNotificationStackScroller.setOverScrollAmount(0f, true /* onTop */, false /* animate */,
                true /* cancelAnimators */);
public voidsetBarState(int statusBarState, boolean keyguardFadingAway, boolean goingToFullShade)

        boolean keyguardShowing = statusBarState == StatusBarState.KEYGUARD
                || statusBarState == StatusBarState.SHADE_LOCKED;
        if (!mKeyguardShowing && keyguardShowing) {
            setQsTranslation(mQsExpansionHeight);
            mHeader.setTranslationY(0f);
        }
        setKeyguardStatusViewVisibility(statusBarState, keyguardFadingAway, goingToFullShade);
        setKeyguardBottomAreaVisibility(statusBarState, goingToFullShade);
        if (goingToFullShade) {
            animateKeyguardStatusBarOut();
        } else {
            mKeyguardStatusBar.setAlpha(1f);
            mKeyguardStatusBar.setVisibility(keyguardShowing ? View.VISIBLE : View.INVISIBLE);
        }
        mStatusBarState = statusBarState;
        mKeyguardShowing = keyguardShowing;
        updateQsState();
        if (goingToFullShade) {
            animateHeaderSlidingIn();
        }
public voidsetDozing(boolean dozing, boolean animate)

        if (dozing == mDozing) return;
        mDozing = dozing;
        if (mDozing) {
            mKeyguardStatusBar.setVisibility(View.INVISIBLE);
            mKeyguardBottomArea.setVisibility(View.INVISIBLE);
        } else {
            mKeyguardBottomArea.setVisibility(View.VISIBLE);
            mKeyguardStatusBar.setVisibility(View.VISIBLE);
            if (animate) {
                animateKeyguardStatusBarIn();
                mKeyguardBottomArea.startFinishDozeAnimation();
            }
        }
public voidsetEmptyDragAmount(float amount)

        float factor = 0.8f;
        if (mNotificationStackScroller.getNotGoneChildCount() > 0) {
            factor = 0.4f;
        } else if (!mStatusBar.hasActiveNotifications()) {
            factor = 0.4f;
        }
        mEmptyDragAmount = amount * factor;
        positionClockAndNotifications();
private voidsetKeyguardBottomAreaVisibility(int statusBarState, boolean goingToFullShade)


       
              
        if (goingToFullShade) {
            mKeyguardBottomArea.animate().cancel();
            mKeyguardBottomArea.animate()
                    .alpha(0f)
                    .setStartDelay(mStatusBar.getKeyguardFadingAwayDelay())
                    .setDuration(mStatusBar.getKeyguardFadingAwayDuration()/2)
                    .setInterpolator(PhoneStatusBar.ALPHA_OUT)
                    .withEndAction(mAnimateKeyguardBottomAreaInvisibleEndRunnable)
                    .start();
        } else if (statusBarState == StatusBarState.KEYGUARD
                || statusBarState == StatusBarState.SHADE_LOCKED) {
            mKeyguardBottomArea.animate().cancel();
            mKeyguardBottomArea.setVisibility(View.VISIBLE);
            mKeyguardBottomArea.setAlpha(1f);
        } else {
            mKeyguardBottomArea.animate().cancel();
            mKeyguardBottomArea.setVisibility(View.GONE);
            mKeyguardBottomArea.setAlpha(1f);
        }
private voidsetKeyguardStatusViewVisibility(int statusBarState, boolean keyguardFadingAway, boolean goingToFullShade)

        if ((!keyguardFadingAway && mStatusBarState == StatusBarState.KEYGUARD
                && statusBarState != StatusBarState.KEYGUARD) || goingToFullShade) {
            mKeyguardStatusView.animate().cancel();
            mKeyguardStatusViewAnimating = true;
            mKeyguardStatusView.animate()
                    .alpha(0f)
                    .setStartDelay(0)
                    .setDuration(160)
                    .setInterpolator(PhoneStatusBar.ALPHA_OUT)
                    .withEndAction(mAnimateKeyguardStatusViewInvisibleEndRunnable);
            if (keyguardFadingAway) {
                mKeyguardStatusView.animate()
                        .setStartDelay(mStatusBar.getKeyguardFadingAwayDelay())
                        .setDuration(mStatusBar.getKeyguardFadingAwayDuration()/2)
                        .start();
            }
        } else if (mStatusBarState == StatusBarState.SHADE_LOCKED
                && statusBarState == StatusBarState.KEYGUARD) {
            mKeyguardStatusView.animate().cancel();
            mKeyguardStatusView.setVisibility(View.VISIBLE);
            mKeyguardStatusViewAnimating = true;
            mKeyguardStatusView.setAlpha(0f);
            mKeyguardStatusView.animate()
                    .alpha(1f)
                    .setStartDelay(0)
                    .setDuration(320)
                    .setInterpolator(PhoneStatusBar.ALPHA_IN)
                    .withEndAction(mAnimateKeyguardStatusViewVisibleEndRunnable);
        } else if (statusBarState == StatusBarState.KEYGUARD) {
            mKeyguardStatusView.animate().cancel();
            mKeyguardStatusViewAnimating = false;
            mKeyguardStatusView.setVisibility(View.VISIBLE);
            mKeyguardStatusView.setAlpha(1f);
        } else {
            mKeyguardStatusView.animate().cancel();
            mKeyguardStatusViewAnimating = false;
            mKeyguardStatusView.setVisibility(View.GONE);
            mKeyguardStatusView.setAlpha(1f);
        }
public voidsetKeyguardUserSwitcher(com.android.systemui.statusbar.policy.KeyguardUserSwitcher keyguardUserSwitcher)

        mKeyguardUserSwitcher = keyguardUserSwitcher;
public voidsetLaunchTransitionEndRunnable(java.lang.Runnable r)

        mLaunchAnimationEndRunnable = r;
private voidsetListening(boolean listening)

        mHeader.setListening(listening);
        mKeyguardStatusBar.setListening(listening);
        mQsPanel.setListening(listening);
protected voidsetOverExpansion(float overExpansion, boolean isPixels)

        if (mConflictingQsExpansionGesture || mQsExpandImmediate) {
            return;
        }
        if (mStatusBar.getBarState() != StatusBarState.KEYGUARD) {
            mNotificationStackScroller.setOnHeightChangedListener(null);
            if (isPixels) {
                mNotificationStackScroller.setOverScrolledPixels(
                        overExpansion, true /* onTop */, false /* animate */);
            } else {
                mNotificationStackScroller.setOverScrollAmount(
                        overExpansion, true /* onTop */, false /* animate */);
            }
            mNotificationStackScroller.setOnHeightChangedListener(this);
        }
private voidsetQsExpanded(boolean expanded)

        boolean changed = mQsExpanded != expanded;
        if (changed) {
            mQsExpanded = expanded;
            updateQsState();
            requestPanelHeightUpdate();
            mNotificationStackScroller.setInterceptDelegateEnabled(expanded);
            mStatusBar.setQsExpanded(expanded);
            mQsPanel.setExpanded(expanded);
        }
private voidsetQsExpansion(float height)

        height = Math.min(Math.max(height, mQsMinExpansionHeight), mQsMaxExpansionHeight);
        mQsFullyExpanded = height == mQsMaxExpansionHeight;
        if (height > mQsMinExpansionHeight && !mQsExpanded && !mStackScrollerOverscrolling) {
            setQsExpanded(true);
        } else if (height <= mQsMinExpansionHeight && mQsExpanded) {
            setQsExpanded(false);
            if (mLastAnnouncementWasQuickSettings && !mTracking) {
                announceForAccessibility(getKeyguardOrLockScreenString());
                mLastAnnouncementWasQuickSettings = false;
            }
        }
        mQsExpansionHeight = height;
        mHeader.setExpansion(getHeaderExpansionFraction());
        setQsTranslation(height);
        requestScrollerTopPaddingUpdate(false /* animate */);
        updateNotificationScrim(height);
        if (mKeyguardShowing) {
            updateHeaderKeyguard();
        }
        if (mStatusBarState == StatusBarState.SHADE && mQsExpanded
                && !mStackScrollerOverscrolling && mQsScrimEnabled) {
            mQsNavbarScrim.setAlpha(getQsExpansionFraction());
        }

        // Upon initialisation when we are not layouted yet we don't want to announce that we are
        // fully expanded, hence the != 0.0f check.
        if (height != 0.0f && mQsFullyExpanded && !mLastAnnouncementWasQuickSettings) {
            announceForAccessibility(getContext().getString(
                    R.string.accessibility_desc_quick_settings));
            mLastAnnouncementWasQuickSettings = true;
        }
        if (DEBUG) {
            invalidate();
        }
public voidsetQsExpansionEnabled(boolean qsExpansionEnabled)

        mQsExpansionEnabled = qsExpansionEnabled;
        mHeader.setClickable(qsExpansionEnabled);
public voidsetQsScrimEnabled(boolean qsScrimEnabled)

        boolean changed = mQsScrimEnabled != qsScrimEnabled;
        mQsScrimEnabled = qsScrimEnabled;
        if (changed) {
            updateQsState();
        }
private voidsetQsTranslation(float height)

        if (!mHeaderAnimatingIn) {
            mQsContainer.setY(height - mQsContainer.getDesiredHeight() + getHeaderTranslation());
        }
        if (mKeyguardShowing) {
            mHeader.setY(interpolate(getQsExpansionFraction(), -mHeader.getHeight(), 0));
        }
public voidsetShadeEmpty(boolean shadeEmpty)

        mShadeEmpty = shadeEmpty;
        updateEmptyShadeView();
public voidsetStatusBar(PhoneStatusBar bar)

        mStatusBar = bar;
public booleanshouldDelayChildPressedState()

        return true;
private booleanshouldQuickSettingsIntercept(float x, float y, float yDiff)

return
Whether we should intercept a gesture to open Quick Settings.

        if (!mQsExpansionEnabled) {
            return false;
        }
        View header = mKeyguardShowing ? mKeyguardStatusBar : mHeader;
        boolean onHeader = x >= header.getLeft() && x <= header.getRight()
                && y >= header.getTop() && y <= header.getBottom();
        if (mQsExpanded) {
            return onHeader || (mScrollView.isScrolledToBottom() && yDiff < 0) && isInQsArea(x, y);
        } else {
            return onHeader;
        }
private voidstartClockAnimation(int y)

        if (mClockAnimationTarget == y) {
            return;
        }
        mClockAnimationTarget = y;
        getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
            @Override
            public boolean onPreDraw() {
                getViewTreeObserver().removeOnPreDrawListener(this);
                if (mClockAnimator != null) {
                    mClockAnimator.removeAllListeners();
                    mClockAnimator.cancel();
                }
                mClockAnimator = ObjectAnimator
                        .ofFloat(mKeyguardStatusView, View.Y, mClockAnimationTarget);
                mClockAnimator.setInterpolator(mFastOutSlowInInterpolator);
                mClockAnimator.setDuration(StackStateAnimator.ANIMATION_DURATION_STANDARD);
                mClockAnimator.addListener(new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationEnd(Animator animation) {
                        mClockAnimator = null;
                        mClockAnimationTarget = -1;
                    }
                });
                mClockAnimator.start();
                return true;
            }
        });
private voidstartHighlightIconAnimation(com.android.systemui.statusbar.KeyguardAffordanceView icon)
Starts the highlight (making it fully opaque) animation on an icon.

        icon.setImageAlpha(1.0f, true, KeyguardAffordanceHelper.HINT_PHASE1_DURATION,
                mFastOutSlowInInterpolator, new Runnable() {
                    @Override
                    public void run() {
                        icon.setImageAlpha(KeyguardAffordanceHelper.SWIPE_RESTING_ALPHA_AMOUNT,
                                true, KeyguardAffordanceHelper.HINT_PHASE1_DURATION,
                                mFastOutSlowInInterpolator, null);
                    }
                });
private voidstartQsSizeChangeAnimation(int oldHeight, int newHeight)

        if (mQsSizeChangeAnimator != null) {
            oldHeight = (int) mQsSizeChangeAnimator.getAnimatedValue();
            mQsSizeChangeAnimator.cancel();
        }
        mQsSizeChangeAnimator = ValueAnimator.ofInt(oldHeight, newHeight);
        mQsSizeChangeAnimator.setDuration(300);
        mQsSizeChangeAnimator.setInterpolator(mFastOutSlowInInterpolator);
        mQsSizeChangeAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                requestScrollerTopPaddingUpdate(false /* animate */);
                requestPanelHeightUpdate();
                int height = (int) mQsSizeChangeAnimator.getAnimatedValue();
                mQsContainer.setHeightOverride(height - mHeader.getExpandedHeight());
            }
        });
        mQsSizeChangeAnimator.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                mQsSizeChangeAnimator = null;
            }
        });
        mQsSizeChangeAnimator.start();
protected voidstartUnlockHintAnimation()

        super.startUnlockHintAnimation();
        startHighlightIconAnimation(getCenterIcon());
private voidtrackMovement(android.view.MotionEvent event)

        if (mVelocityTracker != null) mVelocityTracker.addMovement(event);
        mLastTouchX = event.getX();
        mLastTouchY = event.getY();
private voidupdateClock(float alpha, float scale)

        if (!mKeyguardStatusViewAnimating) {
            mKeyguardStatusView.setAlpha(alpha);
        }
        mKeyguardStatusView.setScaleX(scale);
        mKeyguardStatusView.setScaleY(scale);
private voidupdateEmptyShadeView()


        // Hide "No notifications" in QS.
        mNotificationStackScroller.updateEmptyShadeView(mShadeEmpty && !mQsExpanded);
private voidupdateHeader()
Hides the header when notifications are colliding with it.

        if (mStatusBar.getBarState() == StatusBarState.KEYGUARD
                || mStatusBar.getBarState() == StatusBarState.SHADE_LOCKED) {
            updateHeaderKeyguard();
        } else {
            updateHeaderShade();
        }
private voidupdateHeaderKeyguard()

        float alphaNotifications;
        if (mStatusBar.getBarState() == StatusBarState.KEYGUARD) {

            // When on Keyguard, we hide the header as soon as the top card of the notification
            // stack scroller is close enough (collision distance) to the bottom of the header.
            alphaNotifications = getNotificationsTopY()
                    /
                    (mKeyguardStatusBar.getHeight() + mNotificationsHeaderCollideDistance);
        } else {

            // In SHADE_LOCKED, the top card is already really close to the header. Hide it as
            // soon as we start translating the stack.
            alphaNotifications = getNotificationsTopY() / mKeyguardStatusBar.getHeight();
        }
        alphaNotifications = MathUtils.constrain(alphaNotifications, 0, 1);
        alphaNotifications = (float) Math.pow(alphaNotifications, 0.75);
        float alphaQsExpansion = 1 - Math.min(1, getQsExpansionFraction() * 2);
        mKeyguardStatusBar.setAlpha(Math.min(alphaNotifications, alphaQsExpansion)
                * mKeyguardStatusBarAnimateAlpha);
        mKeyguardBottomArea.setAlpha(Math.min(1 - getQsExpansionFraction(), alphaNotifications));
        setQsTranslation(mQsExpansionHeight);
private voidupdateHeaderShade()

        if (!mHeaderAnimatingIn) {
            mHeader.setTranslationY(getHeaderTranslation());
        }
        setQsTranslation(mQsExpansionHeight);
private voidupdateNotificationScrim(float height)

        int startDistance = mQsMinExpansionHeight + mNotificationScrimWaitDistance;
        float progress = (height - startDistance) / (mQsMaxExpansionHeight - startDistance);
        progress = Math.max(0.0f, Math.min(progress, 1.0f));
private voidupdateNotificationTranslucency()

        float alpha = (getNotificationsTopY() + mNotificationStackScroller.getItemHeight())
                / (mQsMinExpansionHeight + mNotificationStackScroller.getBottomStackPeekSize()
                        - mNotificationStackScroller.getCollapseSecondCardPadding());
        alpha = Math.max(0, Math.min(alpha, 1));
        alpha = (float) Math.pow(alpha, 0.75);
        if (alpha != 1f && mNotificationStackScroller.getLayerType() != LAYER_TYPE_HARDWARE) {
            mNotificationStackScroller.setLayerType(LAYER_TYPE_HARDWARE, null);
        } else if (alpha == 1f
                && mNotificationStackScroller.getLayerType() == LAYER_TYPE_HARDWARE) {
            mNotificationStackScroller.setLayerType(LAYER_TYPE_NONE, null);
        }
        mNotificationStackScroller.setAlpha(alpha);
private voidupdateQsState()

        boolean expandVisually = mQsExpanded || mStackScrollerOverscrolling;
        mHeader.setVisibility((mQsExpanded || !mKeyguardShowing) ? View.VISIBLE : View.INVISIBLE);
        mHeader.setExpanded(mKeyguardShowing || (mQsExpanded && !mStackScrollerOverscrolling));
        mNotificationStackScroller.setScrollingEnabled(
                mStatusBarState != StatusBarState.KEYGUARD && (!mQsExpanded
                        || mQsExpansionFromOverscroll));
        mQsPanel.setVisibility(expandVisually ? View.VISIBLE : View.INVISIBLE);
        mQsContainer.setVisibility(
                mKeyguardShowing && !expandVisually ? View.INVISIBLE : View.VISIBLE);
        mScrollView.setTouchEnabled(mQsExpanded);
        updateEmptyShadeView();
        mQsNavbarScrim.setVisibility(mStatusBarState == StatusBarState.SHADE && mQsExpanded
                && !mStackScrollerOverscrolling && mQsScrimEnabled
                        ? View.VISIBLE
                        : View.INVISIBLE);
        if (mKeyguardUserSwitcher != null && mQsExpanded && !mStackScrollerOverscrolling) {
            mKeyguardUserSwitcher.hideIfNotSimple(true /* animate */);
        }
public voidupdateResources()

        int panelWidth = getResources().getDimensionPixelSize(R.dimen.notification_panel_width);
        int panelGravity = getResources().getInteger(R.integer.notification_panel_layout_gravity);
        FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) mHeader.getLayoutParams();
        if (lp.width != panelWidth) {
            lp.width = panelWidth;
            lp.gravity = panelGravity;
            mHeader.setLayoutParams(lp);
            mHeader.post(mUpdateHeader);
        }

        lp = (FrameLayout.LayoutParams) mNotificationStackScroller.getLayoutParams();
        if (lp.width != panelWidth) {
            lp.width = panelWidth;
            lp.gravity = panelGravity;
            mNotificationStackScroller.setLayoutParams(lp);
        }

        lp = (FrameLayout.LayoutParams) mScrollView.getLayoutParams();
        if (lp.width != panelWidth) {
            lp.width = panelWidth;
            lp.gravity = panelGravity;
            mScrollView.setLayoutParams(lp);
        }
private voidupdateUnlockIcon()

        if (mStatusBar.getBarState() == StatusBarState.KEYGUARD
                || mStatusBar.getBarState() == StatusBarState.SHADE_LOCKED) {
            boolean active = getMaxPanelHeight() - getExpandedHeight() > mUnlockMoveDistance;
            KeyguardAffordanceView lockIcon = mKeyguardBottomArea.getLockIcon();
            if (active && !mUnlockIconActive && mTracking) {
                lockIcon.setImageAlpha(1.0f, true, 150, mFastOutLinearInterpolator, null);
                lockIcon.setImageScale(LOCK_ICON_ACTIVE_SCALE, true, 150,
                        mFastOutLinearInterpolator);
            } else if (!active && mUnlockIconActive && mTracking) {
                lockIcon.setImageAlpha(KeyguardAffordanceHelper.SWIPE_RESTING_ALPHA_AMOUNT, true,
                        150, mFastOutLinearInterpolator, null);
                lockIcon.setImageScale(1.0f, true, 150,
                        mFastOutLinearInterpolator);
            }
            mUnlockIconActive = active;
        }