File	Doc	Category	Size	Date	Package
StateListDrawable.java	API Doc	Android 1.5 API	9649	Wed May 06 22:42:00 BST 2009	android.graphics.drawable

StateListDrawable

• java.lang.Object
  • DrawableContainer

Fields Summary
private final StateListState	mStateListState
private boolean	mMutated

Constructors Summary
public StateListDrawable() this(null);
private StateListDrawable(StateListState state) StateListState as = new StateListState(state, this); mStateListState = as; setConstantState(as); onStateChange(getState());

Methods Summary
public void	addState(int[] stateSet, Drawable drawable) Add a new image/string ID to the set of images. param stateSet - An array of resource Ids to associate with the image. Switch to this image by calling setState(). param drawable -The image to show. if (drawable != null) { mStateListState.addStateSet(stateSet, drawable); // in case the new state matches our current state... onStateChange(getState()); }
public int	getStateCount() Gets the number of states contained in this drawable. return The number of states contained in this drawable. hide pending API council see #getStateSet(int) see #getStateDrawable(int) return mStateListState.getChildCount();
public Drawable	getStateDrawable(int index) Gets the drawable at an index. param index The index of the drawable. return The drawable at the index. hide pending API council see #getStateCount() see #getStateSet(int) return mStateListState.getChildren()[index];
public int	getStateDrawableIndex(int[] stateSet) Gets the index of the drawable with the provided state set. param stateSet the state set to look up return the index of the provided state set, or -1 if not found hide pending API council see #getStateDrawable(int) see #getStateSet(int) return mStateListState.indexOfStateSet(stateSet);
android.graphics.drawable.StateListDrawable$StateListState	getStateListState() return mStateListState;
public int[]	getStateSet(int index) Gets the state set at an index. param index The index of the state set. return The state set at the index. hide pending API council see #getStateCount() see #getStateDrawable(int) return mStateListState.mStateSets[index];
public void	inflate(android.content.res.Resources r, org.xmlpull.v1.XmlPullParser parser, android.util.AttributeSet attrs) TypedArray a = r.obtainAttributes(attrs, com.android.internal.R.styleable.StateListDrawable); super.inflateWithAttributes(r, parser, a, com.android.internal.R.styleable.StateListDrawable_visible); mStateListState.setVariablePadding(a.getBoolean( com.android.internal.R.styleable.StateListDrawable_variablePadding, false)); mStateListState.setConstantSize(a.getBoolean( com.android.internal.R.styleable.StateListDrawable_constantSize, false)); a.recycle(); int type; final int innerDepth = parser.getDepth() + 1; int depth; while ((type = parser.next()) != XmlPullParser.END_DOCUMENT && ((depth = parser.getDepth()) >= innerDepth || type != XmlPullParser.END_TAG)) { if (type != XmlPullParser.START_TAG) { continue; } if (depth > innerDepth || !parser.getName().equals("item")) { continue; } int drawableRes = 0; int i; int j = 0; final int numAttrs = attrs.getAttributeCount(); int[] states = new int[numAttrs]; for (i = 0; i < numAttrs; i++) { final int stateResId = attrs.getAttributeNameResource(i); if (stateResId == 0) break; if (stateResId == com.android.internal.R.attr.drawable) { drawableRes = attrs.getAttributeResourceValue(i, 0); } else { states[j++] = attrs.getAttributeBooleanValue(i, false) ? stateResId : -stateResId; } } states = StateSet.trimStateSet(states, j); Drawable dr; if (drawableRes != 0) { dr = r.getDrawable(drawableRes); } else { while ((type = parser.next()) == XmlPullParser.TEXT) { } if (type != XmlPullParser.START_TAG) { throw new XmlPullParserException( parser.getPositionDescription() + ": <item> tag requires a 'drawable' attribute or " + "child tag defining a drawable"); } dr = Drawable.createFromXmlInner(r, parser, attrs); } mStateListState.addStateSet(states, dr); } onStateChange(getState());
public boolean	isStateful() return true;
public Drawable	mutate() if (!mMutated && super.mutate() == this) { final int[][] sets = mStateListState.mStateSets; final int count = sets.length; mStateListState.mStateSets = new int[count][]; for (int i = 0; i < count; i++) { mStateListState.mStateSets[i] = sets[i].clone(); } mMutated = true; } return this;
protected boolean	onStateChange(int[] stateSet) int idx = mStateListState.indexOfStateSet(stateSet); if (idx < 0) { idx = mStateListState.indexOfStateSet(StateSet.WILD_CARD); } if (selectDrawable(idx)) { return true; } return super.onStateChange(stateSet);