android - StackOverflowError when using ViewCompat -

i'm using viewcompat compatible animation lower api (10).

but when deploy on emulator stackoverflowerror

this code:

private void fabfadein(){      if (floatingactionbutton.getvisibility() == view.gone) {          floatingactionbutton.setvisibility(view.visible);          viewcompat.setalpha(floatingactionbutton, 0f);         viewcompat.setscalex(floatingactionbutton, 0f);         viewcompat.setscaley(floatingactionbutton, 0f);          viewcompat.animate(floatingactionbutton)                 .alpha(1)                 .scalex(1)                 .scaley(1)                 .setduration(300)                 .setinterpolator(new overshootinterpolator())                 .setlistener(new viewpropertyanimatorlistener() {                     @override                     public void onanimationstart(view view) {                      }                      @override                     public void onanimationend(view view) {                         viewcompat.animate(floatingactionbutton).setinterpolator(new linearoutslowininterpolator()).start();                     }                      @override                     public void onanimationcancel(view view) {                      }                 })                 .start();       }  } 

and error:

 java.lang.stackoverflowerror                                                                        @ java.lang.thread.currentthread(thread.java:557)                                                                        @ java.lang.threadlocal.get(threadlocal.java:59)                                                                        @ android.view.viewroot.getrunqueue(viewroot.java:3340)                                                                        @ android.view.view.removecallbacks(view.java:5407)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.removestartmessage(viewpropertyanimatorcompat.java:341)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.start(viewpropertyanimatorcompat.java:268)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat.start(viewpropertyanimatorcompat.java:1249)                                                                        @ com.test.app.activities.mainactivity$2.onanimationend(mainactivity.java:305)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.startanimation(viewpropertyanimatorcompat.java:308)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.start(viewpropertyanimatorcompat.java:269)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat.start(viewpropertyanimatorcompat.java:1249)                                                                        @ com.test.app.activities.mainactivity$2.onanimationend(mainactivity.java:305)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.startanimation(viewpropertyanimatorcompat.java:308)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.start(viewpropertyanimatorcompat.java:269)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat.start(viewpropertyanimatorcompat.java:1249)                                                                        @ com.test.app.activities.mainactivity$2.onanimationend(mainactivity.java:305)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.startanimation(viewpropertyanimatorcompat.java:308)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.start(viewpropertyanimatorcompat.java:269)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat.start(viewpropertyanimatorcompat.java:1249)                                                                        @ com.test.app.activities.mainactivity$2.onanimationend(mainactivity.java:305)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.startanimation(viewpropertyanimatorcompat.java:308)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.start(viewpropertyanimatorcompat.java:269)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat.start(viewpropertyanimatorcompat.java:1249)                                                                        @ com.test.app.activities.mainactivity$2.onanimationend(mainactivity.java:305)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.startanimation(viewpropertyanimatorcompat.java:308)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.start(viewpropertyanimatorcompat.java:269)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat.start(viewpropertyanimatorcompat.java:1249)                                                                        @ com.test.app.activities.mainactivity$2.onanimationend(mainactivity.java:305)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.startanimation(viewpropertyanimatorcompat.java:308)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.start(viewpropertyanimatorcompat.java:269)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat.start(viewpropertyanimatorcompat.java:1249)                                                                        @ com.test.app.activities.mainactivity$2.onanimationend(mainactivity.java:305)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.startanimation(viewpropertyanimatorcompat.java:308)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimatorcompatimpl.start(viewpropertyanimatorcompat.java:269)                                                                        @ android.support.v4.view.viewpropertyanimatorcompat.start(viewpropertyanimatorcompat.java:1249)                                                                        @ com.test.app.activities.mainactivity$2.onanimationend(mainactivity.java:305)                                                                     @ android.support.v4.view.viewpropertyanimatorcompat$baseviewpropertyanimat 

as can see error goes onanimationend section of code.

if go sources, see, 1 of realisations of compatible animate method is:

@override public viewpropertyanimatorcompat animate(view view) {     if (mviewpropertyanimatorcompatmap == null) {         mviewpropertyanimatorcompatmap = new weakhashmap<>();     }     viewpropertyanimatorcompat vpa = mviewpropertyanimatorcompatmap.get(view);     if (vpa == null) {         vpa = new viewpropertyanimatorcompat(view);         mviewpropertyanimatorcompatmap.put(view, vpa);     }     return vpa; } 

so in internal compatible animations use cache of animators attached view. let's return case. have view floatingactionbutton. , call viewcompat.animate() it. in internal implementations viewpropertyanimatorcompat created , assigned view. set'ing listener it.

after animation finished call animate again , instead of creating new viewpropertyanimatorcompat (it seems logicaly) received created viewpropertyanimatorcompat assigned listener. , have endless loop.

to fix it, need write like:

    viewcompat.animate(floatingactionbutton)             .alpha(1)             .scalex(1)             .scaley(1)             .setduration(300)             .setinterpolator(new overshootinterpolator())             .setlistener(new viewpropertyanimatorlistener() {                 @override                 public void onanimationstart(view view) {                  }                  @override                 public void onanimationend(view view) {                     viewcompat.animate(floatingactionbutton).setinterpolator(new linearoutslowininterpolator()).setlistener(null).start();                 }                  @override                 public void onanimationcancel(view view) {                  }             })             .start(); 

in short, need add .setlistener(null) building animation in onanimationend callback