NativeScript/apps/perf-tests/custom-transition.android.ts

import transition = require("ui/transition");
import platform = require("platform");

var floatType = java.lang.Float.class.getField("TYPE").get(null);

export class CustomTransition extends transition.Transition {
    public createAndroidAnimator(transitionType: string): android.animation.Animator {
        var scaleValues = java.lang.reflect.Array.newInstance(floatType, 2);
        switch (transitionType) {
            case transition.AndroidTransitionType.enter:
            case transition.AndroidTransitionType.popEnter:
                scaleValues[0] = 0;
                scaleValues[1] = 1;
                break;
            case transition.AndroidTransitionType.exit:
            case transition.AndroidTransitionType.popExit:
                scaleValues[0] = 1;
                scaleValues[1] = 0;
                break;
        }
        var objectAnimators = java.lang.reflect.Array.newInstance(android.animation.Animator.class, 2);
        objectAnimators[0] = android.animation.ObjectAnimator.ofFloat(null, "scaleX", scaleValues);
        objectAnimators[1] = android.animation.ObjectAnimator.ofFloat(null, "scaleY", scaleValues);
        var animatorSet = new android.animation.AnimatorSet();
        animatorSet.playTogether(objectAnimators);

        var duration = this.getDuration();
        if (duration !== undefined) {
            animatorSet.setDuration(duration);
        }
        animatorSet.setInterpolator(this.getCurve());

        return animatorSet;
    }
}