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Making sure Clear-all button can't be clicked when transparent

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There are times when the button is visible, but completely transparent.
Fixing: now when transparent, it's invisible, consequently, unclickable.

Bug: 72222505
Test: Manual
Change-Id: I1be162b56d6e694199fad7845c64f3438415a190
This commit is contained in:
Vadim Tryshev
2018-04-30 12:14:58 -07:00
parent 1c56935c30
commit 83b4bb0421
1 changed files with 6 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
quickstep/src/com/android/quickstep/views/RecentsView.java
View File

@@ -304,7 +304,7 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
private float calculateClearAllButtonAlpha() {
final int childCount = getChildCount();
if (mClearAllButton.getVisibility() != View.VISIBLE || childCount == 0) return 0;
if (mShowEmptyMessage || childCount == 0) return 0;
// Current visible coordinate of the end of the oldest task.
final View lastChild = getChildAt(childCount - 1);
@@ -356,7 +356,9 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
private void updateClearAllButtonAlpha() {
if (mClearAllButton != null) {
mClearAllButton.setAlpha(calculateClearAllButtonAlpha() * mContentAlpha);
final float alpha = calculateClearAllButtonAlpha();
mClearAllButton.setAlpha(alpha * mContentAlpha);
mClearAllButton.setVisibility(alpha == 0 ? INVISIBLE : VISIBLE);
}
}
@@ -1027,9 +1029,6 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
mShowEmptyMessage = isEmpty;
updateEmptyStateUi(hasSizeChanged);
invalidate();
if (mClearAllButton != null) {
updateClearAllButtonVisibility();
}
}
@Override
@@ -1044,7 +1043,7 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
mEmptyTextLayout = null;
mLastMeasureSize.set(getWidth(), getHeight());
}
updateClearAllButtonVisibility();
updateClearAllButtonAlpha();
if (!mShowEmptyMessage) return;
@@ -1238,14 +1237,8 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
return mIsRtl ? additionalScrollForClearAllButton() : 0;
}
private void updateClearAllButtonVisibility() {
if (mClearAllButton == null) return;
mClearAllButton.setVisibility(mShowEmptyMessage ? GONE : VISIBLE);
updateClearAllButtonAlpha();
}
public void setClearAllButton(View clearAllButton) {
mClearAllButton = clearAllButton;
updateClearAllButtonVisibility();
updateClearAllButtonAlpha();
}
}