android - Activity Transitions not working -

i trying implement activity transitions not able see effects. here code first activity:

@override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_architecture);         setupwindowanimations();     }  private void setupwindowanimations() {         if (android.os.build.version.sdk_int >= 21) {             log.i("anim", "fade called");             fade fade = new fade(2);             fade.setduration(3000);             getwindow().setexittransition(fade);         }     } 

here code second activity:

@override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_image);         setupwindowanimations();     }  private void setupwindowanimations() {         if (android.os.build.version.sdk_int >= 21) {             log.i("anim", "slide called");             slide slide = new slide(gravity.left);             slide.setduration(3000);             getwindow().setentertransition(slide);         }     } 

even though have set fade out animation, there no fading, also, slide works in default way, i.e. direction bottom instead of left.

here values/style.xml , here v21/styles.xml.

here androidmanifest.xml:

<application         android:name=".myapplication"         android:allowbackup="true"         android:hardwareaccelerated="true"         android:icon="@mipmap/ic_launcher"         android:label="@string/app_name"         android:largeheap="true"         android:theme="@style/apptheme"> 

why these transitions not working , how make them work. used paste.ubuntu.com because editor not showing xml properly.

bundle bundle = activityoptions.makescenetransitionanimation(this).tobundle(); this.startactivity(intent,bundle); 

add these 2 lines after setup intent between 2 activities work.

you cannot start activity via startactivity(intent) method need specify transitions across activies using bundles.