commit | fa04d367d18ffb27136033923deb70b782c9f03e | [log] [tgz] |
---|---|---|
author | Jelle Fresen <jellefresen@google.com> | Tue Apr 23 17:37:47 2019 +0100 |
committer | Jelle Fresen <jellefresen@google.com> | Thu Apr 25 14:58:01 2019 +0100 |
tree | 71501d8dc77950f8ceb2af7754687646e06bf96f | |
parent | 0df41beca759cf931784489af33cb16bff26fc2d [diff] |
Account for delays when sending drags in FakeDragTest In FakeDragTest, calls to ViewPager2's fake drag methods are scheduled such that it results in a smooth drag. But the actual time at which those callbacks are executed is unreliable (too late), which influences the velocity calculated by Viewpager2. Sometimes this results in a velocity above the fling threshold when a velocity below the threshold was expected, which causes a fling to happen when it shouldn't. Fix this by posting callback i after executing callback i-1, so there will be a guaranteed delay between the two. Also, actively suppress flings when we don't want them by extending the fake drag with 100ms of zero motion. That guarantees the VelocityTracker returns a velocity of 0. Bug: 129296837 Test: ./gradlew viewpager2:connectedCheck Change-Id: Ib0a8f057a80ea20280029899545691e4c78e2669
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