Use View.isShown() to avoid focus overlay glitches
A View can become focused while being invisible, if it's parent is invisible. Use global draw listener and View.isShown() to catch such cases.
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@ -74,44 +74,26 @@ public final class FocusOverlayView extends Drawable implements
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@Override
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public void onGlobalFocusChanged(final View oldFocus, final View newFocus) {
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int l = focusRect.left;
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int r = focusRect.right;
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int t = focusRect.top;
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int b = focusRect.bottom;
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if (newFocus != null && newFocus.getWidth() > 0 && newFocus.getHeight() > 0) {
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newFocus.getGlobalVisibleRect(focusRect);
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if (newFocus != null) {
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focused = new WeakReference<>(newFocus);
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} else {
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focusRect.setEmpty();
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focused = null;
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}
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if (l != focusRect.left || r != focusRect.right
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|| t != focusRect.top || b != focusRect.bottom) {
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invalidateSelf();
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}
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focused = new WeakReference<>(newFocus);
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updateRect();
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animator.sendEmptyMessageDelayed(0, 1000);
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}
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private void updateRect() {
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if (focused == null) {
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return;
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}
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View focusedView = this.focused.get();
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View focusedView = focused == null ? null : this.focused.get();
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int l = focusRect.left;
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int r = focusRect.right;
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int t = focusRect.top;
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int b = focusRect.bottom;
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if (focusedView != null) {
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if (focusedView != null && isShown(focusedView)) {
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focusedView.getGlobalVisibleRect(focusRect);
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} else {
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focusRect.setEmpty();
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@ -123,6 +105,10 @@ public final class FocusOverlayView extends Drawable implements
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}
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}
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private boolean isShown(final View view) {
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return view.getWidth() != 0 && view.getHeight() != 0 && view.isShown();
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}
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@Override
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public void onDraw() {
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updateRect();
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@ -223,6 +209,7 @@ public final class FocusOverlayView extends Drawable implements
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observer.addOnGlobalFocusChangeListener(overlay);
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observer.addOnGlobalLayoutListener(overlay);
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observer.addOnTouchModeChangeListener(overlay);
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observer.addOnDrawListener(overlay);
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overlay.setCurrentFocus(decor.getFocusedChild());
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