NullPointerException, call beginFakeDrag before fakeDragBy

Author: logan676Created Apr 2, 2018Updated Apr 2, 2018

https://github.com/JakeWharton/ViewPagerIndicator/blob/8cd549f23f3d20ff920e19a2345c54983f65e26b/library/src/com/viewpagerindicator/CirclePageIndicator.java#L309

java.lang.NullPointerException:   Attempt to invoke virtual method 'void   android.view.VelocityTracker.addMovement(android.view.MotionEvent)' on a null   object reference\n\tat   android.support.v4.view.ViewPager.fakeDragBy(SourceFile:2644)\n\tat   com.xxx.xxx.ui.widget.aj.onTouchEvent(SourceFile:296)\n\tat   android.view.View.dispatchTouchEvent(View.java:9414)\n\tat

Source: JakeWharton/ViewPagerIndicator

View original on GitHub View discussion on GitHub