NumberPicker cannot fling in scrollable containers.

1. NumberPicker was not preventing its predecessor from
   intercepting touch events that are on top of it, hence
   it was not flingable in scrollable containres.

bug:5661117

Change-Id: I145f59b069f479935f551bc5e841f13468a6c676

1 files changed, 2 insertions, 0 deletions

diff --git a/core/java/android/widget/NumberPicker.java b/core/java/android/widget/NumberPicker.java
index d897a39ce08c..3571257dc003 100644
--- a/core/java/android/widget/NumberPicker.java
+++ b/core/java/android/widget/NumberPicker.java
@@ -771,6 +771,8 @@ public class NumberPicker extends LinearLayout {
                 mLastDownEventTime = event.getEventTime();
                 mIngonreMoveEvents = false;
                 mShowSoftInputOnTap = false;
+                // Make sure we wupport flinging inside scrollables.
+                getParent().requestDisallowInterceptTouchEvent(true);
                 if (!mFlingScroller.isFinished()) {
                     mFlingScroller.forceFinished(true);
                     mAdjustScroller.forceFinished(true);