Android app overridePendingTransition not shown -


i have app main activity using webview load webpage.

i trying set animation when user wants go previous webpage using button on device (not button on screen) animation not shown @ all.

the code below outside of oncreate().

note: notice tried overridependingtransition in each line commented out no effect.

here code:

    @override     public boolean onkeydown(int keycode, keyevent event) {         log.i("back", " pressed!");       //overridependingtransition(r.anim.slide_in_right, r.anim.slide_out_left);          if ((keycode == keyevent.keycode_back) && this.webview.cangoback()) {           //overridependingtransition(r.anim.slide_in_right, r.anim.slide_out_left);             this.webview.goback();             return true;         }         else{             return super.onkeydown(keycode, event);         }     }      @override     public void onbackpressed(){         super.onbackpressed();       //overridependingtransition(r.anim.slide_in_right, r.anim.slide_out_left);      //finish();         return;     }

if use finish() exits app instead of going back.

here slide_in_right xml:

    <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/accelerate_interpolator">      <translate         android:fromxdelta="100%"         android:toxdelta="0%"         android:duration="500" />      <alpha android:duration="500" android:fromalpha="0.0" android:toalpha="1.0" />  </set>

and slide_out_left:

    <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android">      <translate         android:fromxdelta="0%"         android:toxdelta="-100%"         android:duration="500" />      <alpha android:duration="500" android:fromalpha="1.0" android:toalpha="0.0" />  </set>

i not sure missing. have checked lot of topics couldn't fix mine issue.

thanks in advance.

here solution!!!

call overridependingtransition after finishing activity

@override public void onbackpressed() {     super.onbackpressed();     finish();     overridependingtransition(r.anim.activity_backin, r.anim.activity_back_out);  }

activity_backin.xml in anim folder

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <translate     android:duration="200"     android:fromxdelta="-100%"     android:toxdelta="0%" /> </set>

activity_back_out.xml in anim folder

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <translate     android:duration="200"     android:fromxdelta="0%"     android:toxdelta="100%" /> </set>

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