NullPointerException on ValueAnimator

[Zhelyazko]

I've got a NPE when updating the visibility of LoadingDots to Visible.

Stacktrace:
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.animation.ValueAnimator.isRunning()' on a null object reference at com.eyalbira.loadingdots.LoadingDots.startAnimationIfAttached(LoadingDots.java:167) at com.eyalbira.loadingdots.LoadingDots.setVisibility(LoadingDots.java:148)

I have LoadingDots_auto_play=false. I checked the code and found the issue here:
private void startAnimationIfAttached() { if (mIsAttachedToWindow && !mAnimation.isRunning()) { mAnimation.start(); } }

It seems that mAnimation is null when autoplay is false. You've added check whether mAnimation is null anywhere you are invoking methods on it but here :)

[intmainreturn00]

can reproduce exactly the same crash.

[nicholas-gs]

I am having the exact same problem. I worked around by just having autoplay as true and working with .setVisibility().

[ahermayur]

i am also getting similer kind of crash

java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.animation.ValueAnimator.isRunning()' on a null object reference
at com.eyalbira.loadingdots.LoadingDots.startAnimationIfAttached(LoadingDots.java:167)
at com.eyalbira.loadingdots.LoadingDots.setVisibility(LoadingDots.java:148)
at com.myapp.fragment.StreamFragment.startLoadingStreamOverMobileData(StreamFragment.java:1241)
at com.myapp.fragment.StreamFragment.onCheckedChanged(StreamFragment.java:1176)
at android.widget.CompoundButton.setChecked(CompoundButton.java:171)
at android.widget.ToggleButton.setChecked(ToggleButton.java:71)
at android.widget.CompoundButton.toggle(CompoundButton.java:127)
at android.widget.CompoundButton.performClick(CompoundButton.java:132)
at android.view.View.performClickInternal(View.java:6574)
at android.view.View.access$3100(View.java:778)
at android.view.View$PerformClick.run(View.java:25885)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6680)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)