am 027d3000: Merge "Fixing an issue where you would inadvertently start fastscrolling." into ub-launcher3-burnaby
* commit '027d30007d6c4448f3d07ccfb880eb0f25178314':
Fixing an issue where you would inadvertently start fastscrolling.
diff --git a/src/com/android/launcher3/BaseRecyclerViewFastScrollBar.java b/src/com/android/launcher3/BaseRecyclerViewFastScrollBar.java
index f76aed7..fcee7e8 100644
--- a/src/com/android/launcher3/BaseRecyclerViewFastScrollBar.java
+++ b/src/com/android/launcher3/BaseRecyclerViewFastScrollBar.java
@@ -66,6 +66,7 @@
private boolean mIsDragging;
private boolean mIsThumbDetached;
private boolean mCanThumbDetach;
+ private boolean mIgnoreDragGesture;
// This is the offset from the top of the scrollbar when the user first starts touching. To
// prevent jumping, this offset is applied as the user scrolls.
@@ -180,13 +181,15 @@
int y = (int) ev.getY();
switch (action) {
case MotionEvent.ACTION_DOWN:
- if (isNearPoint(downX, downY)) {
+ if (isNearThumb(downX, downY)) {
mTouchOffset = downY - mThumbOffset.y;
}
break;
case MotionEvent.ACTION_MOVE:
- // Check if we should start scrolling
- if (!mIsDragging && isNearPoint(downX, downY) &&
+ // Check if we should start scrolling, but ignore this fastscroll gesture if we have
+ // exceeded some fixed movement
+ mIgnoreDragGesture |= Math.abs(y - downY) > config.getScaledPagingTouchSlop();
+ if (!mIsDragging && !mIgnoreDragGesture && isNearThumb(downX, lastY) &&
Math.abs(y - downY) > config.getScaledTouchSlop()) {
mRv.getParent().requestDisallowInterceptTouchEvent(true);
mIsDragging = true;
@@ -214,6 +217,7 @@
case MotionEvent.ACTION_CANCEL:
mTouchOffset = 0;
mLastTouchY = 0;
+ mIgnoreDragGesture = false;
if (mIsDragging) {
mIsDragging = false;
mPopup.animateVisibility(false);
@@ -287,7 +291,7 @@
/**
* Returns whether the specified points are near the scroll bar bounds.
*/
- private boolean isNearPoint(int x, int y) {
+ private boolean isNearThumb(int x, int y) {
mTmpRect.set(mThumbOffset.x, mThumbOffset.y, mThumbOffset.x + mThumbWidth,
mThumbOffset.y + mThumbHeight);
mTmpRect.inset(mTouchInset, mTouchInset);