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Use symmetric conditions for advertising and performing ACTION_SCROLL

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Bug: 30186372
Change-Id: Ieea0cd539049990ffa98edabb2a7b026445dd14a
This commit is contained in:
Alan Viverette
2016-08-05 16:48:19 -04:00
parent c9682ab5b5
commit 47be54bb78
1 changed files with 2 additions and 2 deletions
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4
core/java/android/widget/AbsListView.java
View File

@@ -1546,7 +1546,7 @@ public abstract class AbsListView extends AdapterView<ListAdapter> implements Te
switch (action) {
case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD:
case R.id.accessibilityActionScrollDown: {
if (isEnabled() && getLastVisiblePosition() < getCount() - 1) {
if (isEnabled() && canScrollDown()) {
final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom;
smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION);
return true;
@@ -1554,7 +1554,7 @@ public abstract class AbsListView extends AdapterView<ListAdapter> implements Te
} return false;
case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD:
case R.id.accessibilityActionScrollUp: {
if (isEnabled() && mFirstPosition > 0) {
if (isEnabled() && canScrollUp()) {
final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom;
smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION);
return true;