am 7d2e0755: Merge "Set AlarmActivity\'s animator progress directly" into lmp-dev (f30b8e4b) · Commits · e / os / android_packages_apps_DeskClock

src/com/android/deskclock/AnimatorUtils.java

+32 −6

Original line number	Diff line number	Diff line
		@@ -26,6 +26,9 @@ import android.view.View;
		import android.view.animation.Interpolator;
		import android.widget.ImageView;

		import java.lang.reflect.InvocationTargetException;
		import java.lang.reflect.Method;

		public class AnimatorUtils {

		public static final long ANIM_DURATION_SHORT = 266L; // 8/30 frames long
		@@ -78,14 +81,31 @@ public class AnimatorUtils {

		public static final TypeEvaluator ARGB_EVALUATOR = new ArgbEvaluator();

		public static ValueAnimator getScaleAnimator(View view, float... values) {
		return ObjectAnimator.ofPropertyValuesHolder(view,
		PropertyValuesHolder.ofFloat(View.SCALE_X, values),
		PropertyValuesHolder.ofFloat(View.SCALE_Y, values));
		}
		private static Method sAnimateValue;
		private static boolean sTryAnimateValue = true;

		public static void setAnimatedFraction(ValueAnimator animator, float fraction) {
		animator.setCurrentPlayTime(Math.round((double) fraction * animator.getDuration()));
		if (sTryAnimateValue) {
		// try to set the animated fraction directly so that it isn't affected by the
		// internal animator scale or time (b/17938711)
		try {
		if (sAnimateValue == null) {
		sAnimateValue = ValueAnimator.class
		.getDeclaredMethod("animateValue", float.class);
		sAnimateValue.setAccessible(true);
		}

		sAnimateValue.invoke(animator, fraction);
		return;
		} catch (NoSuchMethodException\|InvocationTargetException\|IllegalAccessException e) {
		// something went wrong, don't try that again
		LogUtils.e("Unable to use animateValue directly", e);
		sTryAnimateValue = false;
		}
		}

		// if that doesn't work then just fall back to setting the current play time
		animator.setCurrentPlayTime(Math.round(fraction * animator.getDuration()));
		}

		public static void start(ValueAnimator... animators) {
		@@ -113,4 +133,10 @@ public class AnimatorUtils {
		animator.cancel();
		}
		}

		public static ValueAnimator getScaleAnimator(View view, float... values) {
		return ObjectAnimator.ofPropertyValuesHolder(view,
		PropertyValuesHolder.ofFloat(View.SCALE_X, values),
		PropertyValuesHolder.ofFloat(View.SCALE_Y, values));
		}
		}