Check if the ownerView is still attached to window in (470681e0) · Commits · e / os / android_frameworks_base

core/java/android/widget/ZoomButtonsController.java

+15 −12

Original line number	Diff line number	Diff line
		@@ -81,27 +81,27 @@ public class ZoomButtonsController implements View.OnTouchListener {
		private static final int ZOOM_CONTROLS_TOUCH_PADDING = 20;
		private int mTouchPaddingScaledSq;

		private Context mContext;
		private WindowManager mWindowManager;
		private final Context mContext;
		private final WindowManager mWindowManager;
		private boolean mAutoDismissControls = true;

		/**
		* The view that is being zoomed by this zoom controller.
		*/
		private View mOwnerView;
		private final View mOwnerView;

		/**
		* The location of the owner view on the screen. This is recalculated
		* each time the zoom controller is shown.
		*/
		private int[] mOwnerViewRawLocation = new int[2];
		private final int[] mOwnerViewRawLocation = new int[2];

		/**
		* The container that is added as a window.
		*/
		private FrameLayout mContainer;
		private final FrameLayout mContainer;
		private LayoutParams mContainerLayoutParams;
		private int[] mContainerRawLocation = new int[2];
		private final int[] mContainerRawLocation = new int[2];

		private ZoomControls mControls;

		@@ -113,7 +113,7 @@ public class ZoomButtonsController implements View.OnTouchListener {
		/**
		* The {@link #mTouchTargetView}'s location in window, set on touch down.
		*/
		private int[] mTouchTargetWindowLocation = new int[2];
		private final int[] mTouchTargetWindowLocation = new int[2];

		/**
		* If the zoom controller is dismissed but the user is still in a touch
		@@ -128,8 +128,8 @@ public class ZoomButtonsController implements View.OnTouchListener {
		/** Whether the container has been added to the window manager. */
		private boolean mIsVisible;

		private Rect mTempRect = new Rect();
		private int[] mTempIntArray = new int[2];
		private final Rect mTempRect = new Rect();
		private final int[] mTempIntArray = new int[2];

		private OnZoomListener mCallback;

		@@ -141,13 +141,13 @@ public class ZoomButtonsController implements View.OnTouchListener {
		*/
		private Runnable mPostedVisibleInitializer;

		private IntentFilter mConfigurationChangedFilter =
		private final IntentFilter mConfigurationChangedFilter =
		new IntentFilter(Intent.ACTION_CONFIGURATION_CHANGED);

		/**
		* Needed to reposition the zoom controls after configuration changes.
		*/
		private BroadcastReceiver mConfigurationChangedReceiver = new BroadcastReceiver() {
		private final BroadcastReceiver mConfigurationChangedReceiver = new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
		if (!mIsVisible) return;
		@@ -167,7 +167,7 @@ public class ZoomButtonsController implements View.OnTouchListener {
		*/
		private static final int MSG_POST_SET_VISIBLE = 4;

		private Handler mHandler = new Handler() {
		private final Handler mHandler = new Handler() {
		@Override
		public void handleMessage(Message msg) {
		switch (msg.what) {
		@@ -444,6 +444,9 @@ public class ZoomButtonsController implements View.OnTouchListener {
		}

		private void refreshPositioningVariables() {
		// if the mOwnerView is detached from window then skip.
		if (mOwnerView.getWindowToken() == null) return;

		// Position the zoom controls on the bottom of the owner view.
		int ownerHeight = mOwnerView.getHeight();
		int ownerWidth = mOwnerView.getWidth();