android; setting in/out animations on AdapterViewFlipper: Unknown animator name translate
android, animation
Solution
Found the answer here: https://stackoverflow.com/a/26197426/1534666
It appears that a ViewFlipperAdapter needs a objectAnimator, not a set.
Example left_in.xml, declared in animator folder
<objectAnimator xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:propertyName="x"
android:valueType="floatType"
android:valueFrom="-1500"
android:valueTo="0"
android:duration="600"/>
Problem
I have some very simple animations that work perfectly with a ViewFlipper, but if I try setting them on an AdapterViewFlipper in/out, I get a runtime error "Unknown animator name translate". In looking at the respective methods on each, it looks like ViewFlipper expects a ViewAnimation, and AdapterViewFlipper expects an AdapterViewAnimation. The api's are otherwise the same, and both build without error. Here's the xml for one of the animations: ``` <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:shareInterpolator="false"> <translate android:fromXDelta="0%" android:toXDelta="-100%" android:fromYDelta="0%" android:toYDelta="0%" android:duration="800"/> </set> ``` and I set it on the flipper like: ``` vf.setOutAnimation(this, R.anim.out_to_left); ``` I can guess this might mean that I can't use translate, type, but then how would I accomplish the same animation? Lame...