Java Code Examples for android.view.View#dispatchPopulateAccessibilityEvent()

/** @hide */
@Override
public boolean dispatchPopulateAccessibilityEventInternal(AccessibilityEvent event) {
    if (mTopToBottomLeftToRightSet == null) {
        mTopToBottomLeftToRightSet = new TreeSet<View>(new TopToBottomLeftToRightComparator());
    }

    // sort children top-to-bottom and left-to-right
    for (int i = 0, count = getChildCount(); i < count; i++) {
        mTopToBottomLeftToRightSet.add(getChildAt(i));
    }

    for (View view : mTopToBottomLeftToRightSet) {
        if (view.getVisibility() == View.VISIBLE
                && view.dispatchPopulateAccessibilityEvent(event)) {
            mTopToBottomLeftToRightSet.clear();
            return true;
        }
    }

    mTopToBottomLeftToRightSet.clear();
    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this ViewPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem &&
                    child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this VerticalViewPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem &&
                    child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this ViewPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final CoolViewPager.ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem
                    && child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

@SuppressLint("WrongConstant")
@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this SliderPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem
                    && child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this ViewPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem &&
                    child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this ViewPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem &&
                    child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this ViewPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem &&
                    child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this ViewPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final YViewPagerNew.ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem
                    && child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this ViewPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem &&
                    child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    // Dispatch scroll events from this ViewPager.
    if (event.getEventType() == AccessibilityEventCompat.TYPE_VIEW_SCROLLED) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() == VISIBLE) {
            final ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == mCurItem &&
                    child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }

    return false;
}
 

public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    if (event.getEventType() == 4096) {
        return super.dispatchPopulateAccessibilityEvent(event);
    }
    int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        View child = getChildAt(i);
        if (child.getVisibility() == 0) {
            ItemInfo ii = infoForChild(child);
            if (ii != null && ii.position == this.mCurItem && child.dispatchPopulateAccessibilityEvent(event)) {
                return true;
            }
        }
    }
    return false;
}
 

/**
 * Try to send an {@link AccessibilityEvent}
 * for a {@link View}.
 *
 * @param view The View that will dispatch the AccessibilityEvent
 * @return true if the AccessibilityEvent was dispatched
 */
@SuppressWarnings("UnusedReturnValue")
public static boolean sendAccessibilityEvent(View view) {
    final AccessibilityManager accessibilityManager = (AccessibilityManager)
            view.getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);

    if (!accessibilityManager.isEnabled()) return false;

    final AccessibilityEvent accessibilityEvent = AccessibilityEvent
            .obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
    accessibilityEvent.setClassName(view.getClass().getName());
    accessibilityEvent.setPackageName(view.getContext().getPackageName());

    view.dispatchPopulateAccessibilityEvent(accessibilityEvent);
    accessibilityManager.sendAccessibilityEvent(accessibilityEvent);

    return true;
}
 

/** @hide */
@Override
public boolean onRequestSendAccessibilityEventInternal(View child, AccessibilityEvent event) {
    if (super.onRequestSendAccessibilityEventInternal(child, event)) {
        // Add a record for ourselves as well.
        AccessibilityEvent record = AccessibilityEvent.obtain();
        onInitializeAccessibilityEvent(record);
        // Populate with the text of the requesting child.
        child.dispatchPopulateAccessibilityEvent(record);
        event.appendRecord(record);
        return true;
    }
    return false;
}
 

public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent accessibilityevent)
    {
        int i1 = getChildCount();
        int j1 = 0;
        do
        {
label0:
            {
                boolean flag = false;
                if (j1 < i1)
                {
                    View view = getChildAt(j1);
                    if (view.getVisibility() != 0)
                    {
                        break label0;
                    }
                    F f1 = a(view);
                    if (f1 == null || f1.b != l || !view.dispatchPopulateAccessibilityEvent(accessibilityevent))
                    {
                        break label0;
                    }
                    flag = true;
                }
                return flag;
            }
            j1++;
        } while (true);
    }
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event)
{
    // Dispatch scroll events from this ViewPager.
    if ( event.getEventType() == AccessibilityEvent.TYPE_VIEW_SCROLLED )
    {
        return super.dispatchPopulateAccessibilityEvent( event );
    }

    // Dispatch all other accessibility events from the current page.
    final int childCount = getChildCount();
    for ( int i = 0; i < childCount; i++ )
    {
        final View child = getChildAt( i );
        if ( child.getVisibility() == VISIBLE )
        {
            final ItemInfo ii = infoForChild( child );
            if ( ii != null && ii.position == mCurItem &&
                    child.dispatchPopulateAccessibilityEvent( event ) )
            {
                return true;
            }
        }
    }

    return false;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    View selectedView = getSelectedView();
    if (selectedView != null && selectedView.getVisibility() == VISIBLE
            && selectedView.dispatchPopulateAccessibilityEvent(event)) {
        return true;
    }
    return false;
}
 

@TargetApi(14)
public boolean onRequestSendAccessibilityEvent(View child, AccessibilityEvent event) {
    if (!super.onRequestSendAccessibilityEvent(child, event)) {
        return false;
    }
    AccessibilityEvent record = AccessibilityEvent.obtain();
    onInitializeAccessibilityEvent(record);
    child.dispatchPopulateAccessibilityEvent(record);
    event.appendRecord(record);
    return true;
}
 

@Override
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
    boolean populated = false;
    // This is an exceptional case which occurs when a window gets the
    // focus and sends a focus event via its focused child to announce
    // current focus/selection. AdapterView fires selection but not focus
    // events so we change the event type here.
    if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_FOCUSED) {
        event.setEventType(AccessibilityEvent.TYPE_VIEW_SELECTED);
    }

    // we send selection events only from AdapterView to avoid
    // generation of such event for each child
    View selectedView = getSelectedView();
    if (selectedView != null) {
        populated = selectedView.dispatchPopulateAccessibilityEvent(event);
    }

    if (!populated) {
        if (selectedView != null) {
            event.setEnabled(selectedView.isEnabled());
        }
        event.setItemCount(getCount());
        event.setCurrentItemIndex(getSelectedItemPosition());
    }

    return populated;
}
 

@Override
public boolean onRequestSendAccessibilityEvent(View child, AccessibilityEvent event) {
    if (super.onRequestSendAccessibilityEvent(child, event)) {
        // Add a record for ourselves as well.
        AccessibilityEvent record = AccessibilityEvent.obtain();
        onInitializeAccessibilityEvent(record);
        // Populate with the text of the requesting child.
        child.dispatchPopulateAccessibilityEvent(record);
        event.appendRecord(record);
        return true;
    }
    return false;
}