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Diffstat (limited to 'core/java/android/transition/Transition.java')
| -rw-r--r-- | core/java/android/transition/Transition.java | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/core/java/android/transition/Transition.java b/core/java/android/transition/Transition.java index 2705bcf..c942042 100644 --- a/core/java/android/transition/Transition.java +++ b/core/java/android/transition/Transition.java @@ -1762,7 +1762,17 @@ public abstract class Transition implements Cloneable { runAnimators(); } - boolean areValuesChanged(TransitionValues oldValues, TransitionValues newValues) { + /** + * Returns whether transition values have changed between the start scene and the end scene + * (thus determining whether animation is required). The default implementation compares the + * property values returned from {@link #getTransitionProperties()}, or all property values if + * {@code getTransitionProperties()} returns null. Subclasses may override this method to + * provide logic more specific to their transition implementation. + * + * @param oldValues the first set of values, may be {@code null} + * @param newValues the second set of values, may be {@code null} + */ + protected boolean areValuesChanged(TransitionValues oldValues, TransitionValues newValues) { boolean valuesChanged = false; // if oldValues null, then transition didn't care to stash values, // and won't get canceled |