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-rw-r--r--core/java/android/transition/Fade.java100
-rw-r--r--core/java/android/transition/Transition.java2
-rw-r--r--core/java/android/transition/TransitionSet.java2
-rw-r--r--core/java/android/view/View.java69
4 files changed, 99 insertions, 74 deletions
diff --git a/core/java/android/transition/Fade.java b/core/java/android/transition/Fade.java
index 4cc2c42..5f948bd 100644
--- a/core/java/android/transition/Fade.java
+++ b/core/java/android/transition/Fade.java
@@ -41,7 +41,6 @@ public class Fade extends Visibility {
private static boolean DBG = Transition.DBG && false;
private static final String LOG_TAG = "Fade";
- private static final String PROPNAME_ALPHA = "android:fade:alpha";
private static final String PROPNAME_SCREEN_X = "android:fade:screenX";
private static final String PROPNAME_SCREEN_Y = "android:fade:screenY";
@@ -90,7 +89,8 @@ public class Fade extends Visibility {
}
return null;
}
- final ObjectAnimator anim = ObjectAnimator.ofFloat(view, "alpha", startAlpha, endAlpha);
+ final ObjectAnimator anim = ObjectAnimator.ofFloat(view, "transitionAlpha", startAlpha,
+ endAlpha);
if (DBG) {
Log.d(LOG_TAG, "Created animator " + anim);
}
@@ -102,8 +102,6 @@ public class Fade extends Visibility {
}
private void captureValues(TransitionValues transitionValues) {
- float alpha = transitionValues.view.getAlpha();
- transitionValues.values.put(PROPNAME_ALPHA, alpha);
int[] loc = new int[2];
transitionValues.view.getLocationOnScreen(loc);
transitionValues.values.put(PROPNAME_SCREEN_X, loc[0]);
@@ -116,29 +114,6 @@ public class Fade extends Visibility {
captureValues(transitionValues);
}
-
- @Override
- public void captureEndValues(TransitionValues transitionValues) {
- super.captureEndValues(transitionValues);
- }
-
- @Override
- public Animator createAnimator(ViewGroup sceneRoot, TransitionValues startValues,
- TransitionValues endValues) {
- Animator animator = super.createAnimator(sceneRoot, startValues, endValues);
- if (animator == null && startValues != null && endValues != null) {
- boolean endVisible = isVisible(endValues);
- final View endView = endValues.view;
- float endAlpha = endView.getAlpha();
- float startAlpha = (Float) startValues.values.get(PROPNAME_ALPHA);
- if ((endVisible && startAlpha < endAlpha && (mFadingMode & Fade.IN) != 0) ||
- (!endVisible && startAlpha > endAlpha && (mFadingMode & Fade.OUT) != 0)) {
- animator = createAnimation(endView, startAlpha, endAlpha, null);
- }
- }
- return animator;
- }
-
@Override
public Animator onAppear(ViewGroup sceneRoot,
TransitionValues startValues, int startVisibility,
@@ -152,40 +127,37 @@ public class Fade extends Visibility {
Log.d(LOG_TAG, "Fade.onAppear: startView, startVis, endView, endVis = " +
startView + ", " + startVisibility + ", " + endView + ", " + endVisibility);
}
- // if alpha < 1, just fade it in from the current value
- if (endView.getAlpha() == 1.0f) {
- endView.setAlpha(0);
- TransitionListener transitionListener = new TransitionListenerAdapter() {
- boolean mCanceled = false;
- float mPausedAlpha;
+ endView.setTransitionAlpha(0);
+ TransitionListener transitionListener = new TransitionListenerAdapter() {
+ boolean mCanceled = false;
+ float mPausedAlpha;
- @Override
- public void onTransitionCancel(Transition transition) {
- endView.setAlpha(1);
- mCanceled = true;
- }
+ @Override
+ public void onTransitionCancel(Transition transition) {
+ endView.setTransitionAlpha(1);
+ mCanceled = true;
+ }
- @Override
- public void onTransitionEnd(Transition transition) {
- if (!mCanceled) {
- endView.setAlpha(1);
- }
+ @Override
+ public void onTransitionEnd(Transition transition) {
+ if (!mCanceled) {
+ endView.setTransitionAlpha(1);
}
+ }
- @Override
- public void onTransitionPause(Transition transition) {
- mPausedAlpha = endView.getAlpha();
- endView.setAlpha(1);
- }
+ @Override
+ public void onTransitionPause(Transition transition) {
+ mPausedAlpha = endView.getTransitionAlpha();
+ endView.setTransitionAlpha(1);
+ }
- @Override
- public void onTransitionResume(Transition transition) {
- endView.setAlpha(mPausedAlpha);
- }
- };
- addListener(transitionListener);
- }
- return createAnimation(endView, endView.getAlpha(), 1, null);
+ @Override
+ public void onTransitionResume(Transition transition) {
+ endView.setTransitionAlpha(mPausedAlpha);
+ }
+ };
+ addListener(transitionListener);
+ return createAnimation(endView, 0, 1, null);
}
@Override
@@ -236,7 +208,7 @@ public class Fade extends Visibility {
overlayView.offsetTopAndBottom((screenY - loc[1]) - overlayView.getTop());
sceneRoot.getOverlay().add(overlayView);
// TODO: add automatic facility to Visibility superclass for keeping views around
- final float startAlpha = view.getAlpha();
+ final float startAlpha = 1;
float endAlpha = 0;
final View finalView = view;
final View finalOverlayView = overlayView;
@@ -245,7 +217,7 @@ public class Fade extends Visibility {
final AnimatorListenerAdapter endListener = new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
- finalView.setAlpha(startAlpha);
+ finalView.setTransitionAlpha(startAlpha);
// TODO: restore view offset from overlay repositioning
if (finalViewToKeep != null) {
finalViewToKeep.setVisibility(finalVisibility);
@@ -276,7 +248,7 @@ public class Fade extends Visibility {
// VISIBLE for the duration of the transition
viewToKeep.setVisibility((View.VISIBLE));
// TODO: add automatic facility to Visibility superclass for keeping views around
- final float startAlpha = view.getAlpha();
+ final float startAlpha = 1;
float endAlpha = 0;
final View finalView = view;
final View finalOverlayView = overlayView;
@@ -291,8 +263,8 @@ public class Fade extends Visibility {
if (finalViewToKeep != null && !mCanceled) {
finalViewToKeep.setVisibility(finalVisibility);
}
- mPausedAlpha = finalView.getAlpha();
- finalView.setAlpha(startAlpha);
+ mPausedAlpha = finalView.getTransitionAlpha();
+ finalView.setTransitionAlpha(startAlpha);
}
@Override
@@ -300,21 +272,21 @@ public class Fade extends Visibility {
if (finalViewToKeep != null && !mCanceled) {
finalViewToKeep.setVisibility(View.VISIBLE);
}
- finalView.setAlpha(mPausedAlpha);
+ finalView.setTransitionAlpha(mPausedAlpha);
}
@Override
public void onAnimationCancel(Animator animation) {
mCanceled = true;
if (mPausedAlpha >= 0) {
- finalView.setAlpha(mPausedAlpha);
+ finalView.setTransitionAlpha(mPausedAlpha);
}
}
@Override
public void onAnimationEnd(Animator animation) {
if (!mCanceled) {
- finalView.setAlpha(startAlpha);
+ finalView.setTransitionAlpha(startAlpha);
}
// TODO: restore view offset from overlay repositioning
if (finalViewToKeep != null && !mCanceled) {
diff --git a/core/java/android/transition/Transition.java b/core/java/android/transition/Transition.java
index 60b4708..4a99153 100644
--- a/core/java/android/transition/Transition.java
+++ b/core/java/android/transition/Transition.java
@@ -353,7 +353,7 @@ public abstract class Transition implements Cloneable {
if (endValues.viewValues.get(view) != null) {
end = endValues.viewValues.get(view);
endCopy.remove(view);
- } else {
+ } else if (id != View.NO_ID) {
end = endValues.idValues.get(id);
View removeView = null;
for (View viewToRemove : endCopy.keySet()) {
diff --git a/core/java/android/transition/TransitionSet.java b/core/java/android/transition/TransitionSet.java
index f72b36e..6fdd309 100644
--- a/core/java/android/transition/TransitionSet.java
+++ b/core/java/android/transition/TransitionSet.java
@@ -354,7 +354,7 @@ public class TransitionSet extends Transition {
clone.mTransitions = new ArrayList<Transition>();
int numTransitions = mTransitions.size();
for (int i = 0; i < numTransitions; ++i) {
- clone.mTransitions.add((Transition) mTransitions.get(i).clone());
+ clone.addTransition((Transition) mTransitions.get(i).clone());
}
return clone;
}
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index a5db6ee..4680e76 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -2894,6 +2894,13 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
*/
@ViewDebug.ExportedProperty
float mAlpha = 1f;
+
+ /**
+ * The opacity of the view as manipulated by the Fade transition. This is a hidden
+ * property only used by transitions, which is composited with the other alpha
+ * values to calculate the final visual alpha value.
+ */
+ float mTransitionAlpha = 1f;
}
TransformationInfo mTransformationInfo;
@@ -5335,7 +5342,8 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
View view = (View) current;
// We have attach info so this view is attached and there is no
// need to check whether we reach to ViewRootImpl on the way up.
- if (view.getAlpha() <= 0 || view.getVisibility() != VISIBLE) {
+ if (view.getAlpha() <= 0 || view.getTransitionAlpha() <= 0 ||
+ view.getVisibility() != VISIBLE) {
return false;
}
current = view.mParent;
@@ -9786,7 +9794,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
mPrivateFlags &= ~PFLAG_ALPHA_SET;
invalidateViewProperty(true, false);
if (mDisplayList != null) {
- mDisplayList.setAlpha(alpha);
+ mDisplayList.setAlpha(getFinalAlpha());
}
}
}
@@ -9813,7 +9821,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
} else {
mPrivateFlags &= ~PFLAG_ALPHA_SET;
if (mDisplayList != null) {
- mDisplayList.setAlpha(alpha);
+ mDisplayList.setAlpha(getFinalAlpha());
}
}
}
@@ -9821,6 +9829,51 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
}
/**
+ * This property is hidden and intended only for use by the Fade transition, which
+ * animates it to produce a visual translucency that does not side-effect (or get
+ * affected by) the real alpha property. This value is composited with the other
+ * alpha value (and the AlphaAnimation value, when that is present) to produce
+ * a final visual translucency result, which is what is passed into the DisplayList.
+ *
+ * @hide
+ */
+ public void setTransitionAlpha(float alpha) {
+ ensureTransformationInfo();
+ if (mTransformationInfo.mTransitionAlpha != alpha) {
+ mTransformationInfo.mTransitionAlpha = alpha;
+ mPrivateFlags &= ~PFLAG_ALPHA_SET;
+ invalidateViewProperty(true, false);
+ if (mDisplayList != null) {
+ mDisplayList.setAlpha(getFinalAlpha());
+ }
+ }
+ }
+
+ /**
+ * Calculates the visual alpha of this view, which is a combination of the actual
+ * alpha value and the transitionAlpha value (if set).
+ */
+ private float getFinalAlpha() {
+ if (mTransformationInfo != null) {
+ return mTransformationInfo.mAlpha * mTransformationInfo.mTransitionAlpha;
+ }
+ return 1;
+ }
+
+ /**
+ * This property is hidden and intended only for use by the Fade transition, which
+ * animates it to produce a visual translucency that does not side-effect (or get
+ * affected by) the real alpha property. This value is composited with the other
+ * alpha value (and the AlphaAnimation value, when that is present) to produce
+ * a final visual translucency result, which is what is passed into the DisplayList.
+ *
+ * @hide
+ */
+ public float getTransitionAlpha() {
+ return mTransformationInfo != null ? mTransformationInfo.mTransitionAlpha : 1;
+ }
+
+ /**
* Top position of this view relative to its parent.
*
* @return The top of this view, in pixels.
@@ -10913,7 +10966,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
@ViewDebug.ExportedProperty(category = "drawing")
public boolean isOpaque() {
return (mPrivateFlags & PFLAG_OPAQUE_MASK) == PFLAG_OPAQUE_MASK &&
- ((mTransformationInfo != null ? mTransformationInfo.mAlpha : 1.0f) >= 1.0f);
+ getFinalAlpha() >= 1.0f;
}
/**
@@ -13868,7 +13921,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
}
}
if (mTransformationInfo != null) {
- alpha *= mTransformationInfo.mAlpha;
+ alpha *= getFinalAlpha();
if (alpha < 1) {
final int multipliedAlpha = (int) (255 * alpha);
if (onSetAlpha(multipliedAlpha)) {
@@ -14057,8 +14110,8 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
}
}
- float alpha = useDisplayListProperties ? 1 : getAlpha();
- if (transformToApply != null || alpha < 1 || !hasIdentityMatrix() ||
+ float alpha = useDisplayListProperties ? 1 : (getAlpha() * getTransitionAlpha());
+ if (transformToApply != null || alpha < 1 || !hasIdentityMatrix() ||
(mPrivateFlags3 & PFLAG3_VIEW_IS_ANIMATING_ALPHA) == PFLAG3_VIEW_IS_ANIMATING_ALPHA) {
if (transformToApply != null || !childHasIdentityMatrix) {
int transX = 0;
@@ -14115,7 +14168,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
layerFlags |= Canvas.CLIP_TO_LAYER_SAVE_FLAG;
}
if (useDisplayListProperties) {
- displayList.setAlpha(alpha * getAlpha());
+ displayList.setAlpha(alpha * getAlpha() * getTransitionAlpha());
} else if (layerType == LAYER_TYPE_NONE) {
final int scrollX = hasDisplayList ? 0 : sx;
final int scrollY = hasDisplayList ? 0 : sy;
generated by cgit v1.1 at 2025-09-18 06:54:39 +0000