adheus adheus - 5 months ago 30
Android Question

Android - Custom Animation on fragment transaction not running

I'm using Google API 8 (Android 2.2) with support package v4.

It doesn't give any error or animation.

Transaction:

FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.content, myFragment);
transaction.setCustomAnimations(R.anim.slide_in_left, R.anim.slide_out_right);
transaction.commit();


Animations:

slide_in_left.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="700"
android:fromXDelta="-100%"
android:toXDelta="0%" >
</translate>
</set>


slide_out_right.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="700"
android:fromXDelta="0%"
android:toXDelta="100%" >
</translate>
</set>


Does anyone know what is happening here?

Answer

The manager was stacking my transaction before I set the animation, so it stacks the transaction without animations (sad but true), and that occurs even if I commit the transaction after the setCustomAnimations().

The solution is to set the animations first:

FragmentTransaction transaction = manager.beginTransaction();       
transaction.setCustomAnimations(R.anim.slide_in_left, R.anim.slide_out_right);
transaction.replace(R.id.content, myFragment);
transaction.commit();
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