res/anim/

<set xmlns:android="http://schemas.android.com/apk/res/android">
<alpha
??? android:fromAlpha="0.0" android:toAlpha="1.0"
??? android:duration="250" />
??? <scale
??????? android:interpolator="@android:anim/accelerate_interpolator"
??????? android:fromXScale="0.0"
??????? android:toXScale="1.0"
??????? android:fromYScale="0.0"
??????? android:toYScale="1.0"
??????? android:pivotX="50%"
??????? android:pivotY="50%"
??????? android:startOffset="0"
??????? android:duration="250"
??????? />
</set>

@Override
??? protected void onNewIntent(Intent intent) {
??????? super.onNewIntent(intent);
??????? overridePendingTransition(R.anim.main_fade_in,R.anim.main_fade_out);
??? }

onCreate(){