android.support.v4.view.accessibility.AccessibilityNodeInfoCompat#setContentDescription ( )源码实例Demo

private void copyNodeInfoNoChildren(AccessibilityNodeInfoCompat dest, AccessibilityNodeInfoCompat src) {
    Rect rect = this.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());
    dest.setMovementGranularities(src.getMovementGranularities());
}
 

@Override
protected void onPopulateNodeForVirtualView(
        int virtualViewId, AccessibilityNodeInfoCompat node) {
    if (mVirtualViews == null || mVirtualViews.size() <= virtualViewId) {
        // TODO(clholgat): Remove this work around when the Android bug is fixed.
        // crbug.com/420177
        node.setBoundsInParent(mPlaceHolderRect);
        node.setContentDescription(PLACE_HOLDER_STRING);
        return;
    }
    VirtualView view = mVirtualViews.get(virtualViewId);
    view.getTouchTarget(mTouchTarget);

    node.setBoundsInParent(rectToPx(mTouchTarget));
    node.setContentDescription(view.getAccessibilityDescription());
    node.addAction(AccessibilityNodeInfoCompat.ACTION_CLICK);
    node.addAction(AccessibilityNodeInfoCompat.ACTION_FOCUS);
    node.addAction(AccessibilityNodeInfoCompat.ACTION_LONG_CLICK);
}
 

@Override
protected void onPopulateNodeForVirtualView(
        int virtualViewId, AccessibilityNodeInfoCompat node) {
    if (mVirtualViews == null || mVirtualViews.size() <= virtualViewId) {
        // TODO(clholgat): Remove this work around when the Android bug is fixed.
        // crbug.com/420177
        node.setBoundsInParent(mPlaceHolderRect);
        node.setContentDescription(PLACE_HOLDER_STRING);
        return;
    }
    VirtualView view = mVirtualViews.get(virtualViewId);
    view.getTouchTarget(mTouchTarget);

    node.setBoundsInParent(rectToPx(mTouchTarget));
    node.setContentDescription(view.getAccessibilityDescription());
    node.addAction(AccessibilityNodeInfoCompat.ACTION_CLICK);
    node.addAction(AccessibilityNodeInfoCompat.ACTION_FOCUS);
    node.addAction(AccessibilityNodeInfoCompat.ACTION_LONG_CLICK);
}
 

/**
 * 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(AccessibilityNodeInfoCompat dest,
        AccessibilityNodeInfoCompat 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());
}
 

/**
 * 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(AccessibilityNodeInfoCompat dest,
        AccessibilityNodeInfoCompat 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());
}
 

/**
 * 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(AccessibilityNodeInfoCompat dest,
        AccessibilityNodeInfoCompat 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 void a(AccessibilityNodeInfoCompat accessibilitynodeinfocompat, AccessibilityNodeInfoCompat accessibilitynodeinfocompat1)
{
    Rect rect = c;
    accessibilitynodeinfocompat1.getBoundsInParent(rect);
    accessibilitynodeinfocompat.setBoundsInParent(rect);
    accessibilitynodeinfocompat1.getBoundsInScreen(rect);
    accessibilitynodeinfocompat.setBoundsInScreen(rect);
    accessibilitynodeinfocompat.setVisibleToUser(accessibilitynodeinfocompat1.isVisibleToUser());
    accessibilitynodeinfocompat.setPackageName(accessibilitynodeinfocompat1.getPackageName());
    accessibilitynodeinfocompat.setClassName(accessibilitynodeinfocompat1.getClassName());
    accessibilitynodeinfocompat.setContentDescription(accessibilitynodeinfocompat1.getContentDescription());
    accessibilitynodeinfocompat.setEnabled(accessibilitynodeinfocompat1.isEnabled());
    accessibilitynodeinfocompat.setClickable(accessibilitynodeinfocompat1.isClickable());
    accessibilitynodeinfocompat.setFocusable(accessibilitynodeinfocompat1.isFocusable());
    accessibilitynodeinfocompat.setFocused(accessibilitynodeinfocompat1.isFocused());
    accessibilitynodeinfocompat.setAccessibilityFocused(accessibilitynodeinfocompat1.isAccessibilityFocused());
    accessibilitynodeinfocompat.setSelected(accessibilitynodeinfocompat1.isSelected());
    accessibilitynodeinfocompat.setLongClickable(accessibilitynodeinfocompat1.isLongClickable());
    accessibilitynodeinfocompat.addAction(accessibilitynodeinfocompat1.getActions());
}
 

/**
 * 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(AccessibilityNodeInfoCompat dest,
                                    AccessibilityNodeInfoCompat 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());
}
 

@Override
protected void onPopulateNodeForVirtualView(int virtualViewId, AccessibilityNodeInfoCompat node) {
    node.setClassName(getClass().getName());
    node.addAction(AccessibilityNodeInfoCompat.AccessibilityActionCompat.ACTION_CLICK);

    final int type = getTypeFromId(virtualViewId);
    final int value = getValueFromId(virtualViewId);
    final CharSequence description = getVirtualViewDescription(type, value);
    node.setContentDescription(description);

    getBoundsForVirtualView(virtualViewId, mTempRect);
    node.setBoundsInParent(mTempRect);

    final boolean selected = isVirtualViewSelected(type, value);
    node.setSelected(selected);

    final int nextId = getVirtualViewIdAfter(type, value);
    if (nextId != INVALID_ID) {
        node.setTraversalBefore(RadialTimePickerView.this, nextId);
    }
}
 

private void a(AccessibilityNodeInfoCompat accessibilitynodeinfocompat, AccessibilityNodeInfoCompat accessibilitynodeinfocompat1)
{
    Rect rect = c;
    accessibilitynodeinfocompat1.getBoundsInParent(rect);
    accessibilitynodeinfocompat.setBoundsInParent(rect);
    accessibilitynodeinfocompat1.getBoundsInScreen(rect);
    accessibilitynodeinfocompat.setBoundsInScreen(rect);
    accessibilitynodeinfocompat.setVisibleToUser(accessibilitynodeinfocompat1.isVisibleToUser());
    accessibilitynodeinfocompat.setPackageName(accessibilitynodeinfocompat1.getPackageName());
    accessibilitynodeinfocompat.setClassName(accessibilitynodeinfocompat1.getClassName());
    accessibilitynodeinfocompat.setContentDescription(accessibilitynodeinfocompat1.getContentDescription());
    accessibilitynodeinfocompat.setEnabled(accessibilitynodeinfocompat1.isEnabled());
    accessibilitynodeinfocompat.setClickable(accessibilitynodeinfocompat1.isClickable());
    accessibilitynodeinfocompat.setFocusable(accessibilitynodeinfocompat1.isFocusable());
    accessibilitynodeinfocompat.setFocused(accessibilitynodeinfocompat1.isFocused());
    accessibilitynodeinfocompat.setAccessibilityFocused(accessibilitynodeinfocompat1.isAccessibilityFocused());
    accessibilitynodeinfocompat.setSelected(accessibilitynodeinfocompat1.isSelected());
    accessibilitynodeinfocompat.setLongClickable(accessibilitynodeinfocompat1.isLongClickable());
    accessibilitynodeinfocompat.addAction(accessibilitynodeinfocompat1.getActions());
    accessibilitynodeinfocompat.setMovementGranularities(accessibilitynodeinfocompat1.getMovementGranularities());
}
 

@Override
protected void onPopulateNodeForVirtualView(int id, AccessibilityNodeInfoCompat node) {
    if (id == INVALID_ID) {
        throw new IllegalArgumentException("Invalid virtual view id");
    }

    node.setContentDescription(getLocationDescriptionForIconDrop(id));
    node.setBoundsInParent(getItemBounds(id));

    node.addAction(AccessibilityNodeInfoCompat.ACTION_CLICK);
    node.setClickable(true);
    node.setFocusable(true);
}
 

@Override
protected void onPopulateNodeForVirtualView(int virtualViewId,
        AccessibilityNodeInfoCompat node) {
    getItemBounds(virtualViewId, mTempRect);

    node.setContentDescription(getItemDescription(virtualViewId));
    node.setBoundsInParent(mTempRect);
    node.addAction(AccessibilityNodeInfo.ACTION_CLICK);

    if (virtualViewId == mSelectedDay) {
        node.setSelected(true);
    }

}
 

/**
 * 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(AccessibilityNodeInfoCompat dest,
        AccessibilityNodeInfoCompat 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());

    dest.setMovementGranularities(src.getMovementGranularities());
}
 

/**
 * 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(AccessibilityNodeInfoCompat dest,
        AccessibilityNodeInfoCompat 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());

    dest.setMovementGranularities(src.getMovementGranularities());
}
 

@Override
protected void onPopulateNodeForVirtualView(int virtualViewId,
                                            AccessibilityNodeInfoCompat node) {
    getItemBounds(virtualViewId, mTempRect);

    node.setContentDescription(getItemDescription(virtualViewId));
    node.setBoundsInParent(mTempRect);
    node.addAction(AccessibilityNodeInfo.ACTION_CLICK);

    if (virtualViewId == mSelectedDay) {
        node.setSelected(true);
    }

}
 

@Override
protected void onPopulateNodeForVirtualView(int virtualViewId,
        AccessibilityNodeInfoCompat node) {
    getItemBounds(virtualViewId, mTempRect);

    node.setContentDescription(getItemDescription(virtualViewId));
    node.setBoundsInParent(mTempRect);
    node.addAction(AccessibilityNodeInfo.ACTION_CLICK);

    if (virtualViewId == mSelectedDay) {
        node.setSelected(true);
    }

}
 

/**
 * 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(AccessibilityNodeInfoCompat dest,
        AccessibilityNodeInfoCompat 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());

    dest.setMovementGranularities(src.getMovementGranularities());
}
 

@Override
protected void onPopulateNodeForVirtualView(int virtualViewId, AccessibilityNodeInfoCompat node) {
    final boolean hasBounds = getBoundsForDay(virtualViewId, mTempRect);

    if (!hasBounds) {
        // The day is invalid, kill the node.
        mTempRect.setEmpty();
        node.setContentDescription("");
        node.setBoundsInParent(mTempRect);
        node.setVisibleToUser(false);
        return;
    }

    node.setText(getDayText(virtualViewId));
    node.setContentDescription(getDayDescription(virtualViewId));
    node.setBoundsInParent(mTempRect);

    final boolean isDayEnabled = isDayEnabled(virtualViewId);
    if (isDayEnabled) {
        node.addAction(AccessibilityNodeInfoCompat.ACTION_CLICK);
    }

    node.setEnabled(isDayEnabled);

    if (mActivatedDays.isValid() && mActivatedDays.isActivated(virtualViewId)) {
        // TODO: This should use activated once that's supported.
        node.setChecked(true);
    }
}
 

/**
 * 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(AccessibilityNodeInfoCompat dest,
        AccessibilityNodeInfoCompat 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());

    dest.setMovementGranularities(src.getMovementGranularities());
}
 

@Override
protected void onPopulateNodeForVirtualView(int virtualViewId, AccessibilityNodeInfoCompat node) {
    final boolean hasBounds = getBoundsForDay(virtualViewId, mTempRect);

    if (!hasBounds) {
        // The day is invalid, kill the node.
        mTempRect.setEmpty();
        node.setContentDescription("");
        node.setBoundsInParent(mTempRect);
        node.setVisibleToUser(false);
        return;
    }

    node.setText(getDayText(virtualViewId));
    node.setContentDescription(getDayDescription(virtualViewId));
    node.setBoundsInParent(mTempRect);

    final boolean isDayEnabled = isDayEnabled(virtualViewId);
    if (isDayEnabled) {
        node.addAction(AccessibilityActionCompat.ACTION_CLICK);
    }

    node.setEnabled(isDayEnabled);

    if (virtualViewId == mActivatedDay) {
        // TODO: This should use activated once that's supported.
        node.setChecked(true);
    }

}