Fixing bug where StackView doesn't clip it's children correctly (48867214) · Commits · e / os / android_frameworks_base

core/java/android/widget/StackView.java

+12 −0

Original line number	Diff line number	Diff line
		@@ -784,6 +784,18 @@ public class StackView extends AdapterViewAnimator {

		int stackDirection = (mStackMode == ITEMS_SLIDE_UP) ? 1 : -1;

		// We need to prevent any clipping issues which may arise by setting a layer type.
		// This doesn't come for free however, so we only want to enable it when required.
		if (Float.compare(0f, mYProgress) != 0 && Float.compare(1.0f, mYProgress) != 0) {
		if (mView.getLayerType() == LAYER_TYPE_NONE) {
		mView.setLayerType(LAYER_TYPE_HARDWARE, null);
		}
		} else {
		if (mView.getLayerType() != LAYER_TYPE_NONE) {
		mView.setLayerType(LAYER_TYPE_NONE, null);
		}
		}

		switch (mMode) {
		case NORMAL_MODE:
		viewLp.setVerticalOffset(Math.round(-r * stackDirection * mSlideAmount));