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RecentsConfiguration.javaAPI DocAndroid 5.1 API16708Thu Mar 12 22:22:42 GMT 2015com.android.systemui.recents

RecentsConfiguration

public class RecentsConfiguration extends Object
A static Recents configuration for the current context NOTE: We should not hold any references to a Context from a static instance

Fields Summary
static RecentsConfiguration
sInstance
static int
sPrevConfigurationHashCode
public static final int
SVELTE_NONE
Levels of svelte in increasing severity/austerity.
public static final int
SVELTE_LIMIT_CACHE
public static final int
SVELTE_DISABLE_CACHE
public static final int
SVELTE_DISABLE_LOADING
public float
animationPxMovementPerSecond
Animations
public android.view.animation.Interpolator
fastOutSlowInInterpolator
Interpolators
public android.view.animation.Interpolator
fastOutLinearInInterpolator
public android.view.animation.Interpolator
linearOutSlowInInterpolator
public android.view.animation.Interpolator
quintOutInterpolator
public int
filteringCurrentViewsAnimDuration
Filtering
public int
filteringNewViewsAnimDuration
public android.graphics.Rect
systemInsets
Insets
public android.graphics.Rect
displayRect
boolean
isLandscape
Layout
boolean
hasTransposedSearchBar
boolean
hasTransposedNavBar
public int
maxNumTasksToLoad
Loading
int
searchBarAppWidgetId
Search bar
public int
searchBarSpaceHeightPx
public int
taskStackScrollDuration
Task stack
public int
taskStackMaxDim
public int
taskStackTopPaddingPx
public float
taskStackWidthPaddingPct
public float
taskStackOverscrollPct
public int
transitionEnterFromAppDelay
Transitions
public int
transitionEnterFromHomeDelay
public int
taskViewEnterFromAppDuration
Task view animation and styles
public int
taskViewEnterFromHomeDuration
public int
taskViewEnterFromHomeStaggerDelay
public int
taskViewExitToAppDuration
public int
taskViewExitToHomeDuration
public int
taskViewRemoveAnimDuration
public int
taskViewRemoveAnimTranslationXPx
public int
taskViewTranslationZMinPx
public int
taskViewTranslationZMaxPx
public int
taskViewRoundedCornerRadiusPx
public int
taskViewHighlightPx
public int
taskViewAffiliateGroupEnterOffsetPx
public float
taskViewThumbnailAlpha
public int
taskBarViewDefaultBackgroundColor
Task bar colors
public int
taskBarViewLightTextColor
public int
taskBarViewDarkTextColor
public int
taskBarViewHighlightColor
public float
taskBarViewAffiliationColorMinAlpha
public int
taskBarHeight
Task bar size & animations
public int
taskBarDismissDozeDelaySeconds
public int
navBarScrimEnterDuration
Nav bar scrim
public boolean
launchedWithAltTab
Launch states
public boolean
launchedWithNoRecentTasks
public boolean
launchedFromAppWithThumbnail
public boolean
launchedFromHome
public boolean
launchedFromSearchHome
public boolean
launchedReuseTaskStackViews
public boolean
launchedHasConfigurationChanged
public int
launchedToTaskId
public int
launchedNumVisibleTasks
public int
launchedNumVisibleThumbnails
public boolean
useHardwareLayers
Misc
public int
altTabKeyDelay
public boolean
fakeShadows
public boolean
lockToAppEnabled
Dev options and global settings
public boolean
developerOptionsEnabled
public boolean
debugModeEnabled
public int
svelteLevel
Constructors Summary
private RecentsConfiguration(android.content.Context context)
Private constructor


       
       
        // Properties that don't have to be reloaded with each configuration change can be loaded
        // here.

        // Interpolators
        fastOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
                com.android.internal.R.interpolator.fast_out_slow_in);
        fastOutLinearInInterpolator = AnimationUtils.loadInterpolator(context,
                com.android.internal.R.interpolator.fast_out_linear_in);
        linearOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
                com.android.internal.R.interpolator.linear_out_slow_in);
        quintOutInterpolator = AnimationUtils.loadInterpolator(context,
                com.android.internal.R.interpolator.decelerate_quint);
Methods Summary
public static com.android.systemui.recents.RecentsConfigurationgetInstance()
Returns the current recents configuration

        return sInstance;
public voidgetSearchBarBounds(int windowWidth, int windowHeight, int topInset, android.graphics.Rect searchBarSpaceBounds)
Returns the search bar bounds in the current orientation. These bounds do not account for the system insets.

        // Return empty rects if search is not enabled
        int searchBarSize = searchBarSpaceHeightPx;
        if (!Constants.DebugFlags.App.EnableSearchLayout || !hasSearchBarAppWidget()) {
            searchBarSize = 0;
        }

        if (isLandscape && hasTransposedSearchBar) {
            // In landscape, the search bar appears on the left
            searchBarSpaceBounds.set(0, topInset, searchBarSize, windowHeight);
        } else {
            // In portrait, the search bar appears on the top
            searchBarSpaceBounds.set(0, topInset, windowWidth, topInset + searchBarSize);
        }
public voidgetTaskStackBounds(int windowWidth, int windowHeight, int topInset, int rightInset, android.graphics.Rect taskStackBounds)
Returns the task stack bounds in the current orientation. These bounds do not account for the system insets.

        Rect searchBarBounds = new Rect();
        getSearchBarBounds(windowWidth, windowHeight, topInset, searchBarBounds);
        if (isLandscape && hasTransposedSearchBar) {
            // In landscape, the search bar appears on the left, but we overlay it on top
            taskStackBounds.set(0, topInset, windowWidth - rightInset, windowHeight);
        } else {
            // In portrait, the search bar appears on the top (which already has the inset)
            taskStackBounds.set(0, searchBarBounds.bottom, windowWidth, windowHeight);
        }
public booleanhasHorizontalLayout()
Returns whether the current layout is horizontal.

        return isLandscape && hasTransposedSearchBar;
public booleanhasNavBarScrim()
Returns whether the nav bar scrim should be visible.

        // Only show the scrim if we have recent tasks, and if the nav bar is not transposed
        return !launchedWithNoRecentTasks && (!hasTransposedNavBar || !isLandscape);
public booleanhasSearchBarAppWidget()
Returns whether the search bar app widget exists.

        return searchBarAppWidgetId >= 0;
public booleanhasStatusBarScrim()
Returns whether the status bar scrim should be visible.

        return !launchedWithNoRecentTasks;
public static com.android.systemui.recents.RecentsConfigurationreinitialize(android.content.Context context, com.android.systemui.recents.misc.SystemServicesProxy ssp)
Updates the configuration to the current context

        if (sInstance == null) {
            sInstance = new RecentsConfiguration(context);
        }
        int configHashCode = context.getResources().getConfiguration().hashCode();
        if (sPrevConfigurationHashCode != configHashCode) {
            sInstance.update(context);
            sPrevConfigurationHashCode = configHashCode;
        }
        sInstance.updateOnReinitialize(context, ssp);
        return sInstance;
public booleanshouldAnimateNavBarScrim()
Returns whether the nav bar scrim should be animated when shown for the first time.

        return true;
public booleanshouldAnimateStatusBarScrim()
Returns whether the status bar scrim should be animated when shown for the first time.

        return launchedFromHome;
voidupdate(android.content.Context context)
Updates the state, given the specified context

        SharedPreferences settings = context.getSharedPreferences(context.getPackageName(), 0);
        Resources res = context.getResources();
        DisplayMetrics dm = res.getDisplayMetrics();

        // Debug mode
        debugModeEnabled = settings.getBoolean(Constants.Values.App.Key_DebugModeEnabled, false);
        if (debugModeEnabled) {
            Console.Enabled = true;
        }

        // Layout
        isLandscape = res.getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
        hasTransposedSearchBar = res.getBoolean(R.bool.recents_has_transposed_search_bar);
        hasTransposedNavBar = res.getBoolean(R.bool.recents_has_transposed_nav_bar);

        // Insets
        displayRect.set(0, 0, dm.widthPixels, dm.heightPixels);

        // Animations
        animationPxMovementPerSecond =
                res.getDimensionPixelSize(R.dimen.recents_animation_movement_in_dps_per_second);

        // Filtering
        filteringCurrentViewsAnimDuration =
                res.getInteger(R.integer.recents_filter_animate_current_views_duration);
        filteringNewViewsAnimDuration =
                res.getInteger(R.integer.recents_filter_animate_new_views_duration);

        // Loading
        maxNumTasksToLoad = ActivityManager.getMaxRecentTasksStatic();

        // Search Bar
        searchBarSpaceHeightPx = res.getDimensionPixelSize(R.dimen.recents_search_bar_space_height);
        searchBarAppWidgetId = settings.getInt(Constants.Values.App.Key_SearchAppWidgetId, -1);

        // Task stack
        taskStackScrollDuration =
                res.getInteger(R.integer.recents_animate_task_stack_scroll_duration);
        TypedValue widthPaddingPctValue = new TypedValue();
        res.getValue(R.dimen.recents_stack_width_padding_percentage, widthPaddingPctValue, true);
        taskStackWidthPaddingPct = widthPaddingPctValue.getFloat();
        TypedValue stackOverscrollPctValue = new TypedValue();
        res.getValue(R.dimen.recents_stack_overscroll_percentage, stackOverscrollPctValue, true);
        taskStackOverscrollPct = stackOverscrollPctValue.getFloat();
        taskStackMaxDim = res.getInteger(R.integer.recents_max_task_stack_view_dim);
        taskStackTopPaddingPx = res.getDimensionPixelSize(R.dimen.recents_stack_top_padding);

        // Transition
        transitionEnterFromAppDelay =
                res.getInteger(R.integer.recents_enter_from_app_transition_duration);
        transitionEnterFromHomeDelay =
                res.getInteger(R.integer.recents_enter_from_home_transition_duration);

        // Task view animation and styles
        taskViewEnterFromAppDuration =
                res.getInteger(R.integer.recents_task_enter_from_app_duration);
        taskViewEnterFromHomeDuration =
                res.getInteger(R.integer.recents_task_enter_from_home_duration);
        taskViewEnterFromHomeStaggerDelay =
                res.getInteger(R.integer.recents_task_enter_from_home_stagger_delay);
        taskViewExitToAppDuration =
                res.getInteger(R.integer.recents_task_exit_to_app_duration);
        taskViewExitToHomeDuration =
                res.getInteger(R.integer.recents_task_exit_to_home_duration);
        taskViewRemoveAnimDuration =
                res.getInteger(R.integer.recents_animate_task_view_remove_duration);
        taskViewRemoveAnimTranslationXPx =
                res.getDimensionPixelSize(R.dimen.recents_task_view_remove_anim_translation_x);
        taskViewRoundedCornerRadiusPx =
                res.getDimensionPixelSize(R.dimen.recents_task_view_rounded_corners_radius);
        taskViewHighlightPx = res.getDimensionPixelSize(R.dimen.recents_task_view_highlight);
        taskViewTranslationZMinPx = res.getDimensionPixelSize(R.dimen.recents_task_view_z_min);
        taskViewTranslationZMaxPx = res.getDimensionPixelSize(R.dimen.recents_task_view_z_max);
        taskViewAffiliateGroupEnterOffsetPx =
                res.getDimensionPixelSize(R.dimen.recents_task_view_affiliate_group_enter_offset);
        TypedValue thumbnailAlphaValue = new TypedValue();
        res.getValue(R.dimen.recents_task_view_thumbnail_alpha, thumbnailAlphaValue, true);
        taskViewThumbnailAlpha = thumbnailAlphaValue.getFloat();

        // Task bar colors
        taskBarViewDefaultBackgroundColor =
                res.getColor(R.color.recents_task_bar_default_background_color);
        taskBarViewLightTextColor =
                res.getColor(R.color.recents_task_bar_light_text_color);
        taskBarViewDarkTextColor =
                res.getColor(R.color.recents_task_bar_dark_text_color);
        taskBarViewHighlightColor =
                res.getColor(R.color.recents_task_bar_highlight_color);
        TypedValue affMinAlphaPctValue = new TypedValue();
        res.getValue(R.dimen.recents_task_affiliation_color_min_alpha_percentage, affMinAlphaPctValue, true);
        taskBarViewAffiliationColorMinAlpha = affMinAlphaPctValue.getFloat();

        // Task bar size & animations
        taskBarHeight = res.getDimensionPixelSize(R.dimen.recents_task_bar_height);
        taskBarDismissDozeDelaySeconds =
                res.getInteger(R.integer.recents_task_bar_dismiss_delay_seconds);

        // Nav bar scrim
        navBarScrimEnterDuration =
                res.getInteger(R.integer.recents_nav_bar_scrim_enter_duration);

        // Misc
        useHardwareLayers = res.getBoolean(R.bool.config_recents_use_hardware_layers);
        altTabKeyDelay = res.getInteger(R.integer.recents_alt_tab_key_delay);
        fakeShadows = res.getBoolean(R.bool.config_recents_fake_shadows);
        svelteLevel = res.getInteger(R.integer.recents_svelte_level);
public voidupdateOnConfigurationChange()
Called when the configuration has changed, and we want to reset any configuration specific members.

        // Reset this flag on configuration change to ensure that we recreate new task views
        launchedReuseTaskStackViews = false;
        // Set this flag to indicate that the configuration has changed since Recents last launched
        launchedHasConfigurationChanged = true;
voidupdateOnReinitialize(android.content.Context context, com.android.systemui.recents.misc.SystemServicesProxy ssp)
Updates the states that need to be re-read whenever we re-initialize.

        // Check if the developer options are enabled
        developerOptionsEnabled = ssp.getGlobalSetting(context,
                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED) != 0;
        lockToAppEnabled = ssp.getSystemSetting(context,
                Settings.System.LOCK_TO_APP_ENABLED) != 0;
public voidupdateSearchBarAppWidgetId(android.content.Context context, int appWidgetId)
Updates the search bar app widget

        searchBarAppWidgetId = appWidgetId;
        SharedPreferences settings = context.getSharedPreferences(context.getPackageName(), 0);
        settings.edit().putInt(Constants.Values.App.Key_SearchAppWidgetId,
                appWidgetId).apply();
public voidupdateSystemInsets(android.graphics.Rect insets)
Updates the system insets

        systemInsets.set(insets);