Animating transition between fragments crashes

Question

I am trying to animate a transition between two fragments by fading the current to the left and fading in the new one from the right. The app crashes on runtime.

minSdkVersion: 16
targetSdkVersion: 23
emulator running on api version 23

Activity code

    FragmentTransaction transaction = getFragmentManager().beginTransaction();
    transaction.setCustomAnimations(R.animator.enter_from_right, R.animator.exit_to_left);
    transaction.replace(R.id.listFragmentContainer, fragment);
    transaction.commit();

res/animator/enter_from_right.xml

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

res/animator/exit_to_left.xml

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

LogCat

02-17 12:00:25.028 16696-16696/? E/AndroidRuntime: FATAL EXCEPTION: main
                                               Process: com.example.eivind.ticktick, PID: 16696
                                               java.lang.RuntimeException: Unknown animator name: ObjectAnimator

Answer 1

you just miss writing objectAnimator element

change ObjectAnimator to objectAnimator to be like this

res/animator/enter_from_right.xml

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

res/animator/exit_to_left.xml

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