下面列出了android.view.accessibility.AccessibilityNodeInfo#setBoundsInScreen ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
protected AccessibilityNodeInfo provideAccessibilityNodeInfo(View parent, Context context) {
final AccessibilityNodeInfo node = AccessibilityNodeInfo.obtain();
node.setSource(parent, id);
node.setPackageName(context.getPackageName());
node.setClassName(getClassName());
node.setEditable(editable);
node.setViewIdResourceName(idEntry);
node.setVisibleToUser(true);
final Rect absBounds = line.getAbsCoordinates();
if (absBounds != null) {
node.setBoundsInScreen(absBounds);
}
if (TextUtils.getTrimmedLength(text) > 0) {
// TODO: Must checked trimmed length because input fields use 8 empty spaces to
// set width
node.setText(text);
}
return node;
}
private AccessibilityNodeInfo createAccessibiltyNodeInfoForInputText(
int left, int top, int right, int bottom) {
AccessibilityNodeInfo info = mInputText.createAccessibilityNodeInfo();
info.setSource(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
if (mAccessibilityFocusedView != VIRTUAL_VIEW_ID_INPUT) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == VIRTUAL_VIEW_ID_INPUT) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
info.setVisibleToUser(isVisibleToUser(boundsInParent));
info.setBoundsInParent(boundsInParent);
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
info.setBoundsInScreen(boundsInScreen);
return info;
}
protected AccessibilityNodeInfo provideAccessibilityNodeInfo(View parent, Context context) {
final AccessibilityNodeInfo node = AccessibilityNodeInfo.obtain();
node.setSource(parent, id);
node.setPackageName(context.getPackageName());
node.setClassName(getClassName());
node.setEditable(editable);
node.setViewIdResourceName(idEntry);
node.setVisibleToUser(true);
final Rect absBounds = line.getAbsCoordinates();
if (absBounds != null) {
node.setBoundsInScreen(absBounds);
}
if (TextUtils.getTrimmedLength(text) > 0) {
// TODO: Must checked trimmed length because input fields use 8 empty spaces to
// set width
node.setText(text);
}
return node;
}
private AccessibilityNodeInfo createAccessibiltyNodeInfoForInputText(
int left, int top, int right, int bottom) {
AccessibilityNodeInfo info = mInputText.createAccessibilityNodeInfo();
info.setSource(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
if (mAccessibilityFocusedView != VIRTUAL_VIEW_ID_INPUT) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == VIRTUAL_VIEW_ID_INPUT) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
// info.setVisibleToUser(isVisibleToUser(boundsInParent));
info.setBoundsInParent(boundsInParent);
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
info.setBoundsInScreen(boundsInScreen);
return info;
}
private AccessibilityNodeInfo createAccessibiltyNodeInfoForInputText(
int left, int top, int right, int bottom) {
AccessibilityNodeInfo info = mInputText.createAccessibilityNodeInfo();
info.setSource(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
if (mAccessibilityFocusedView != VIRTUAL_VIEW_ID_INPUT) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == VIRTUAL_VIEW_ID_INPUT) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
info.setVisibleToUser(getVisibility() == View.VISIBLE);
info.setBoundsInParent(boundsInParent);
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
info.setBoundsInScreen(boundsInScreen);
return info;
}
/**
* This should really be in AccessibilityNodeInfoCompat, but there unfortunately
* seem to be a few elements that are not easily cloneable using the underlying API.
* Leave it private here as it's not general-purpose useful.
*/
private void copyNodeInfoNoChildren(AccessibilityNodeInfo dest, AccessibilityNodeInfo src) {
final Rect rect = mTmpRect;
src.getBoundsInParent(rect);
dest.setBoundsInParent(rect);
src.getBoundsInScreen(rect);
dest.setBoundsInScreen(rect);
dest.setVisibleToUser(src.isVisibleToUser());
dest.setPackageName(src.getPackageName());
dest.setClassName(src.getClassName());
dest.setContentDescription(src.getContentDescription());
dest.setEnabled(src.isEnabled());
dest.setClickable(src.isClickable());
dest.setFocusable(src.isFocusable());
dest.setFocused(src.isFocused());
dest.setAccessibilityFocused(src.isAccessibilityFocused());
dest.setSelected(src.isSelected());
dest.setLongClickable(src.isLongClickable());
dest.addAction(src.getActions());
}
private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
String text, int left, int top, int right, int bottom) {
AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
info.setClassName(Button.class.getName());
info.setPackageName(mContext.getPackageName());
info.setSource(NumberPicker.this, virtualViewId);
info.setParent(NumberPicker.this);
info.setText(text);
info.setClickable(true);
info.setLongClickable(true);
info.setEnabled(NumberPicker.this.isEnabled());
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
info.setVisibleToUser(isVisibleToUser(boundsInParent));
info.setBoundsInParent(boundsInParent);
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
info.setBoundsInScreen(boundsInScreen);
if (mAccessibilityFocusedView != virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
if (NumberPicker.this.isEnabled()) {
info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
}
return info;
}
private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
String text, int left, int top, int right, int bottom) {
AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
info.setClassName(Button.class.getName());
info.setPackageName(getContext().getPackageName());
info.setSource(NumberPicker.this, virtualViewId);
info.setParent(NumberPicker.this);
info.setText(text);
info.setClickable(true);
info.setLongClickable(true);
info.setEnabled(NumberPicker.this.isEnabled());
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
// info.setVisibleToUser(isVisibleToUser(boundsInParent));
info.setBoundsInParent(boundsInParent);
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
info.setBoundsInScreen(boundsInScreen);
if (mAccessibilityFocusedView != virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
if (NumberPicker.this.isEnabled()) {
info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
}
return info;
}
private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
String text, int left, int top, int right, int bottom) {
AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
info.setClassName(Button.class.getName());
info.setPackageName(getContext().getPackageName());
info.setSource(NumberPicker.this, virtualViewId);
info.setParent(NumberPicker.this);
info.setText(text);
info.setClickable(true);
info.setLongClickable(true);
info.setEnabled(NumberPicker.this.isEnabled());
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
info.setVisibleToUser(getVisibility() == View.VISIBLE);
info.setBoundsInParent(boundsInParent);
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
info.setBoundsInScreen(boundsInScreen);
if (mAccessibilityFocusedView != virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
if (NumberPicker.this.isEnabled()) {
info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
}
return info;
}
private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
String text, int left, int top, int right, int bottom) {
AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
info.setClassName(Button.class.getName());
info.setPackageName(getContext().getPackageName());
info.setSource(TextPicker.this, virtualViewId);
info.setParent(TextPicker.this);
info.setText(text);
info.setClickable(true);
info.setLongClickable(true);
info.setEnabled(TextPicker.this.isEnabled());
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
// TODO info.setVisibleToUser(isVisibleToUser(boundsInParent));
info.setBoundsInParent(boundsInParent);
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
info.setBoundsInScreen(boundsInScreen);
if (mAccessibilityFocusedView != virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
if (TextPicker.this.isEnabled()) {
info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
}
return info;
}
private AccessibilityNodeInfo createNodeForHost(int rootId) {
// Since we don't want the parent to be focusable, but we can't remove
// actions from a node, copy over the necessary fields.
final AccessibilityNodeInfo result = AccessibilityNodeInfo.obtain(mView);
final AccessibilityNodeInfo source = AccessibilityNodeInfo.obtain(mView);
mView.onInitializeAccessibilityNodeInfo(source);
// Copy over parent and screen bounds.
Rect rect = new Rect();
source.getBoundsInParent(rect);
result.setBoundsInParent(rect);
source.getBoundsInScreen(rect);
result.setBoundsInScreen(rect);
// Set up the parent view, if applicable.
final ViewParent parent = mView.getParentForAccessibility();
if (parent instanceof View) {
result.setParent((View) parent);
}
// Populate the minimum required fields.
result.setVisibleToUser(source.isVisibleToUser());
result.setEnabled(source.isEnabled());
result.setPackageName(source.getPackageName());
result.setClassName(source.getClassName());
// Add the Chrome root node.
if (isFrameInfoInitialized()) {
result.addChild(mView, rootId);
}
return result;
}
private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId,
String text, int left, int top, int right, int bottom) {
AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
info.setClassName(Button.class.getName());
info.setPackageName(getContext().getPackageName());
info.setSource(NumberPicker.this, virtualViewId);
info.setParent(NumberPicker.this);
info.setText(text);
info.setClickable(true);
info.setLongClickable(true);
info.setEnabled(NumberPicker.this.isEnabled());
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
// TODO info.setVisibleToUser(isVisibleToUser(boundsInParent));
info.setBoundsInParent(boundsInParent);
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
info.setBoundsInScreen(boundsInScreen);
if (mAccessibilityFocusedView != virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == virtualViewId) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
if (NumberPicker.this.isEnabled()) {
info.addAction(AccessibilityNodeInfo.ACTION_CLICK);
}
return info;
}
@CalledByNative
private void setAccessibilityNodeInfoLocation(AccessibilityNodeInfo node,
int absoluteLeft, int absoluteTop, int parentRelativeLeft, int parentRelativeTop,
int width, int height, boolean isRootNode) {
// First set the bounds in parent.
Rect boundsInParent = new Rect(parentRelativeLeft, parentRelativeTop,
parentRelativeLeft + width, parentRelativeTop + height);
if (isRootNode) {
// Offset of the web content relative to the View.
boundsInParent.offset(0, (int) mRenderCoordinates.getContentOffsetYPix());
}
node.setBoundsInParent(boundsInParent);
// Now set the absolute rect, which requires several transformations.
Rect rect = new Rect(absoluteLeft, absoluteTop, absoluteLeft + width, absoluteTop + height);
// Offset by the scroll position.
rect.offset(-(int) mRenderCoordinates.getScrollX(),
-(int) mRenderCoordinates.getScrollY());
// Convert CSS (web) pixels to Android View pixels
rect.left = (int) mRenderCoordinates.fromLocalCssToPix(rect.left);
rect.top = (int) mRenderCoordinates.fromLocalCssToPix(rect.top);
rect.bottom = (int) mRenderCoordinates.fromLocalCssToPix(rect.bottom);
rect.right = (int) mRenderCoordinates.fromLocalCssToPix(rect.right);
// Offset by the location of the web content within the view.
rect.offset(0,
(int) mRenderCoordinates.getContentOffsetYPix());
// Finally offset by the location of the view within the screen.
final int[] viewLocation = new int[2];
mView.getLocationOnScreen(viewLocation);
rect.offset(viewLocation[0], viewLocation[1]);
node.setBoundsInScreen(rect);
}
@CalledByNative
private void setAccessibilityNodeInfoLocation(AccessibilityNodeInfo node,
int absoluteLeft, int absoluteTop, int parentRelativeLeft, int parentRelativeTop,
int width, int height, boolean isRootNode) {
// First set the bounds in parent.
Rect boundsInParent = new Rect(parentRelativeLeft, parentRelativeTop,
parentRelativeLeft + width, parentRelativeTop + height);
if (isRootNode) {
// Offset of the web content relative to the View.
boundsInParent.offset(0, (int) mRenderCoordinates.getContentOffsetYPix());
}
node.setBoundsInParent(boundsInParent);
// Now set the absolute rect, which requires several transformations.
Rect rect = new Rect(absoluteLeft, absoluteTop, absoluteLeft + width, absoluteTop + height);
// Offset by the scroll position.
rect.offset(-(int) mRenderCoordinates.getScrollX(),
-(int) mRenderCoordinates.getScrollY());
// Convert CSS (web) pixels to Android View pixels
rect.left = (int) mRenderCoordinates.fromLocalCssToPix(rect.left);
rect.top = (int) mRenderCoordinates.fromLocalCssToPix(rect.top);
rect.bottom = (int) mRenderCoordinates.fromLocalCssToPix(rect.bottom);
rect.right = (int) mRenderCoordinates.fromLocalCssToPix(rect.right);
// Offset by the location of the web content within the view.
rect.offset(0,
(int) mRenderCoordinates.getContentOffsetYPix());
// Finally offset by the location of the view within the screen.
final int[] viewLocation = new int[2];
mView.getLocationOnScreen(viewLocation);
rect.offset(viewLocation[0], viewLocation[1]);
node.setBoundsInScreen(rect);
}
private AccessibilityNodeInfo createAccessibilityNodeInfoForNumberPicker(int left, int top,
int right, int bottom) {
AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
info.setClassName(NumberPicker.class.getName());
info.setPackageName(mContext.getPackageName());
info.setSource(NumberPicker.this);
if (hasVirtualDecrementButton()) {
info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_DECREMENT);
}
info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
if (hasVirtualIncrementButton()) {
info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INCREMENT);
}
info.setParent((View) getParentForAccessibility());
info.setEnabled(NumberPicker.this.isEnabled());
info.setScrollable(true);
final float applicationScale =
getContext().getResources().getCompatibilityInfo().applicationScale;
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
boundsInParent.scale(applicationScale);
info.setBoundsInParent(boundsInParent);
info.setVisibleToUser(isVisibleToUser());
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
boundsInScreen.scale(applicationScale);
info.setBoundsInScreen(boundsInScreen);
if (mAccessibilityFocusedView != View.NO_ID) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == View.NO_ID) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
if (NumberPicker.this.isEnabled()) {
if (getWrapSelectorWheel() || getValue() < getMaxValue()) {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
}
if (getWrapSelectorWheel() || getValue() > getMinValue()) {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
}
}
return info;
}
private AccessibilityNodeInfo createAccessibilityNodeInfoForNumberPicker(int left, int top,
int right, int bottom) {
AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
info.setClassName(NumberPicker.class.getName());
info.setPackageName(getContext().getPackageName());
info.setSource(NumberPicker.this);
if (hasVirtualDecrementButton()) {
info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_DECREMENT);
}
info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INPUT);
if (hasVirtualIncrementButton()) {
info.addChild(NumberPicker.this, VIRTUAL_VIEW_ID_INCREMENT);
}
info.setParent((View) getParentForAccessibility());
info.setEnabled(NumberPicker.this.isEnabled());
info.setScrollable(true);
Rect boundsInParent = mTempRect;
boundsInParent.set(left, top, right, bottom);
info.setBoundsInParent(boundsInParent);
info.setVisibleToUser(getVisibility() == View.VISIBLE);
Rect boundsInScreen = boundsInParent;
int[] locationOnScreen = mTempArray;
getLocationOnScreen(locationOnScreen);
boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]);
info.setBoundsInScreen(boundsInScreen);
if (mAccessibilityFocusedView != View.NO_ID) {
info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS);
}
if (mAccessibilityFocusedView == View.NO_ID) {
info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
}
if (NumberPicker.this.isEnabled()) {
if (getWrapSelectorWheel() || getValue() < getMaxValue()) {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
}
if (getWrapSelectorWheel() || getValue() > getMinValue()) {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
}
}
return info;
}
@CalledByNative
private void setAccessibilityNodeInfoLocation(AccessibilityNodeInfo node,
final int virtualViewId,
int absoluteLeft, int absoluteTop, int parentRelativeLeft, int parentRelativeTop,
int width, int height, boolean isRootNode) {
// First set the bounds in parent.
Rect boundsInParent = new Rect(parentRelativeLeft, parentRelativeTop,
parentRelativeLeft + width, parentRelativeTop + height);
if (isRootNode) {
// Offset of the web content relative to the View.
boundsInParent.offset(0, (int) mRenderCoordinates.getContentOffsetYPix());
}
node.setBoundsInParent(boundsInParent);
// Now set the absolute rect, which requires several transformations.
Rect rect = new Rect(absoluteLeft, absoluteTop, absoluteLeft + width, absoluteTop + height);
// Offset by the scroll position.
rect.offset(-(int) mRenderCoordinates.getScrollX(),
-(int) mRenderCoordinates.getScrollY());
// Convert CSS (web) pixels to Android View pixels
rect.left = (int) mRenderCoordinates.fromLocalCssToPix(rect.left);
rect.top = (int) mRenderCoordinates.fromLocalCssToPix(rect.top);
rect.bottom = (int) mRenderCoordinates.fromLocalCssToPix(rect.bottom);
rect.right = (int) mRenderCoordinates.fromLocalCssToPix(rect.right);
// Offset by the location of the web content within the view.
rect.offset(0,
(int) mRenderCoordinates.getContentOffsetYPix());
// Finally offset by the location of the view within the screen.
final int[] viewLocation = new int[2];
mView.getLocationOnScreen(viewLocation);
rect.offset(viewLocation[0], viewLocation[1]);
// Clip the node's bounding rect to the viewport bounds.
int viewportRectTop = viewLocation[1] + (int) mRenderCoordinates.getContentOffsetYPix();
int viewportRectBottom = viewportRectTop + mContentViewCore.getViewportHeightPix();
if (rect.top < viewportRectTop) rect.top = viewportRectTop;
if (rect.bottom > viewportRectBottom) rect.bottom = viewportRectBottom;
node.setBoundsInScreen(rect);
// Work around a bug in the Android framework where if the object with accessibility
// focus moves, the accessibility focus rect is not updated - both the visual highlight,
// and the location on the screen that's clicked if you double-tap. To work around this,
// when we know the object with accessibility focus moved, move focus away and then
// move focus right back to it, which tricks Android into updating its bounds.
if (virtualViewId == mAccessibilityFocusId && virtualViewId != mCurrentRootId) {
if (mAccessibilityFocusRect == null) {
mAccessibilityFocusRect = rect;
} else if (!mAccessibilityFocusRect.equals(rect)) {
mAccessibilityFocusRect = rect;
moveAccessibilityFocusToIdAndRefocusIfNeeded(virtualViewId);
}
}
}
@Override
public AccessibilityNodeInfo createAccessibilityNodeInfo(int thumbId) {
AccessibilityNodeInfo info = null;
if (thumbId == View.NO_ID) {
// We are requested to create an AccessibilityNodeInfo describing
// this View, i.e. the root of the virtual sub-tree. Note that the
// host View has an AccessibilityNodeProvider which means that this
// provider is responsible for creating the node info for that root.
info = AccessibilityNodeInfo.obtain(MultiSlider.this);
onInitializeAccessibilityNodeInfo(info);
// Add the virtual children of the root View.
final int childCount = mThumbs.size();
for (int i = 0; i < childCount; i++) {
info.addChild(MultiSlider.this, i);
}
if (mThumbs.size() == 1) {
info.setScrollable(true);
if (Build.VERSION.SDK_INT >= 21) {
info.addAction(ACTION_SET_PROGRESS);
info.addAction(ACTION_SCROLL_BACKWARD);
info.addAction(ACTION_SCROLL_FORWARD);
} else {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
}
}
} else {
// Find the view that corresponds to the given id.
Thumb thumb = mThumbs.get(thumbId);
if (thumb == null) {
return null;
}
// Obtain and initialize an AccessibilityNodeInfo with
// information about the virtual view.
info = AccessibilityNodeInfo.obtain(MultiSlider.this, thumbId);
info.setClassName(thumb.getClass().getName());
info.setParent(MultiSlider.this);
info.setSource(MultiSlider.this, thumbId);
info.setContentDescription("Multi-Slider thumb no:" + thumbId);
if (Build.VERSION.SDK_INT >= 21) {
info.addAction(ACTION_SET_PROGRESS);
if (thumb.getPossibleMax() > thumb.value) {
info.addAction(ACTION_SCROLL_BACKWARD);
}
if (thumb.getPossibleMax() > thumb.value) {
info.addAction(ACTION_SCROLL_FORWARD);
}
} else {
if (thumb.getPossibleMin() > thumb.value) {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
}
if (thumb.getPossibleMax() > thumb.value) {
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
}
}
if (thumb.getThumb() != null) {
int[] loc = new int[2];
getLocationOnScreen(loc);
Rect rect = thumb.getThumb().copyBounds();
rect.top += loc[1];
rect.left += loc[0];
rect.right += loc[0];
rect.bottom += loc[1];
info.setBoundsInScreen(rect);
//TODO somehow this resuls in [0,0][0,0]. wonder check why
//info.setBoundsInParent(rect);
}
info.setText(thumb.tag + ": " + thumb.value);
info.setEnabled(thumb.isEnabled());
if (Build.VERSION.SDK_INT >= 24) {
info.setImportantForAccessibility(true);
}
info.setVisibleToUser(true);
info.setScrollable(true);
}
return info;
}