Android FragmentTransaction Custom Animation (Unknown Animator Name: Translate)

Question

I'm trying to get a custom animation to work with my fragment.

I've followed the online tutorials but I've been getting the below error:

java.lang.RuntimeException: Unknown animator name: translate

The XML for the animation is below:

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
    android:fromXDelta="100%"
    android:toXDelta="0"
    android:duration="300" />
</set>

The Java file is shown below:

public void goCategory(View v) {        
    FragmentTransaction ft = fm.beginTransaction();     
    ft.setCustomAnimations(R.animator.anim_in_left, R.animator.anim_out_left);              
    ft.show(fragment);
    ft.commit();
}

I'm having trouble understanding the solutions in the other threads. If someone could dumb it down for me, I'd really appreciate it.

Answer 1

Probably you are mixing two apis. There are two cases:

• If targeting below 3.0 or using support v4 fragments: You have to use the old animations api, that is, the one you are using (they go into anim/, and are R.anim.thing)

• If you are targeting above 3.0 and using native fragments: You have to use the new animation apis, that is, ObjectAnimators (they go into animator/ and are R.animator.thing).

Answer 2

It will not work, you should use object animator

animator/slide_in_left.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <objectAnimator
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="500"
        android:propertyName="x"
        android:valueFrom="1000"
        android:valueTo="0"
        android:valueType="floatType" />

</set>

animator/slide_out_right.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <objectAnimator
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="500"
        android:propertyName="x"
        android:valueFrom="0"
        android:valueTo="-1000"
        android:valueType="floatType" />

</set>

Class Subcategory

 public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            // TODO Auto-generated method stub
            // return super.onCreateView(inflater, container, savedInstanceState);

            View view = (ViewGroup) inflater.inflate(R.layout.product_frame, null);
            getFragmentManager().beginTransaction()
                    .replace(R.id.sub_header, new Sub_Header()).commit();
            getFragmentManager()
                    .beginTransaction()
                    .setCustomAnimations(R.animator.slide_in_left,
                            R.animator.slide_out_right, 0, 0)
                    .replace(R.id.product_frame, new Sub_Catagory_Grid()).commit();

            view.getWidth();
            return view;

        }