版本 23.0.0v7 appcompat library
引入了一个动画,它在动作模式开始和结束时淡入淡出,您可以在此处阅读:
动作模式已淡入并按预期工作。
更改是在方法onDestroyActionMode
中进行的AppCompatDelegateImplV7
:
public void onDestroyActionMode(ActionMode mode) {
mWrapped.onDestroyActionMode(mode);
if (mActionModePopup != null) {
mWindow.getDecorView().removeCallbacks(mShowActionModePopup);
mActionModePopup.dismiss();
} else if (mActionModeView != null) {
mActionModeView.setVisibility(View.GONE);
if (mActionModeView.getParent() != null) {
ViewCompat.requestApplyInsets((View) mActionModeView.getParent());
}
}
if (mActionModeView != null) {
mActionModeView.removeAllViews();
}
if (mAppCompatCallback != null) {
mAppCompatCallback.onSupportActionModeFinished(mActionMode);
}
mActionMode = null;
}
在 23.0.0 版本中,它被更改为:
public void onDestroyActionMode(ActionMode mode) {
mWrapped.onDestroyActionMode(mode);
if (mActionModePopup != null) {
mWindow.getDecorView().removeCallbacks(mShowActionModePopup);
}
if (mActionModeView != null) {
endOnGoingFadeAnimation();
mFadeAnim = ViewCompat.animate(mActionModeView).alpha(0f);
mFadeAnim.setListener(new ViewPropertyAnimatorListenerAdapter() {
@Override
public void onAnimationEnd(View view) {
mActionModeView.setVisibility(View.GONE);
if (mActionModePopup != null) {
mActionModePopup.dismiss();
} else if (mActionModeView.getParent() instanceof View) {
ViewCompat.requestApplyInsets((View) mActionModeView.getParent());
}
mActionModeView.removeAllViews();
mFadeAnim.setListener(null);
mFadeAnim = null;
}
});
}
if (mAppCompatCallback != null) {
mAppCompatCallback.onSupportActionModeFinished(mActionMode);
}
mActionMode = null;
}
如您所见mWrapped.onDestroyActionMode(mode);
,立即调用,而不是在动画结束时调用。这就是导致您的应用以及 Gmail 和 Keep 等其他应用中出现黑色状态栏的原因。
您找到的解决方法有效,但不幸的是不可靠,因为如果动画需要更长的时间,您仍然可以看到黑色状态栏。
我认为谷歌应该纠正这个问题,onDestroyActionMode
只有在动画真正结束时才打电话。同时,您可以通过一些反思来改变这种行为。有必要onSupportActionModeStarted
在您的活动中覆盖并调用方法fixActionModeCallback
:
@Override
public void onSupportActionModeStarted(ActionMode mode) {
super.onSupportActionModeStarted(mode);
//Call this method
fixActionModeCallback(this, mode);
}
private void fixActionModeCallback(AppCompatActivity activity, ActionMode mode) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP)
return;
if (!(mode instanceof StandaloneActionMode))
return;
try {
final Field mCallbackField = mode.getClass().getDeclaredField("mCallback");
mCallbackField.setAccessible(true);
final Object mCallback = mCallbackField.get(mode);
final Field mWrappedField = mCallback.getClass().getDeclaredField("mWrapped");
mWrappedField.setAccessible(true);
final ActionMode.Callback mWrapped = (ActionMode.Callback) mWrappedField.get(mCallback);
final Field mDelegateField = AppCompatActivity.class.getDeclaredField("mDelegate");
mDelegateField.setAccessible(true);
final Object mDelegate = mDelegateField.get(activity);
mCallbackField.set(mode, new ActionMode.Callback() {
@Override
public boolean onCreateActionMode(android.support.v7.view.ActionMode mode, Menu menu) {
return mWrapped.onCreateActionMode(mode, menu);
}
@Override
public boolean onPrepareActionMode(android.support.v7.view.ActionMode mode, Menu menu) {
return mWrapped.onPrepareActionMode(mode, menu);
}
@Override
public boolean onActionItemClicked(android.support.v7.view.ActionMode mode, MenuItem item) {
return mWrapped.onActionItemClicked(mode, item);
}
@Override
public void onDestroyActionMode(final android.support.v7.view.ActionMode mode) {
Class mDelegateClass = mDelegate.getClass().getSuperclass();
Window mWindow = null;
PopupWindow mActionModePopup = null;
Runnable mShowActionModePopup = null;
ActionBarContextView mActionModeView = null;
AppCompatCallback mAppCompatCallback = null;
ViewPropertyAnimatorCompat mFadeAnim = null;
android.support.v7.view.ActionMode mActionMode = null;
Field mFadeAnimField = null;
Field mActionModeField = null;
while (mDelegateClass != null) {
try {
if (TextUtils.equals("AppCompatDelegateImplV7", mDelegateClass.getSimpleName())) {
Field mActionModePopupField = mDelegateClass.getDeclaredField("mActionModePopup");
mActionModePopupField.setAccessible(true);
mActionModePopup = (PopupWindow) mActionModePopupField.get(mDelegate);
Field mShowActionModePopupField = mDelegateClass.getDeclaredField("mShowActionModePopup");
mShowActionModePopupField.setAccessible(true);
mShowActionModePopup = (Runnable) mShowActionModePopupField.get(mDelegate);
Field mActionModeViewField = mDelegateClass.getDeclaredField("mActionModeView");
mActionModeViewField.setAccessible(true);
mActionModeView = (ActionBarContextView) mActionModeViewField.get(mDelegate);
mFadeAnimField = mDelegateClass.getDeclaredField("mFadeAnim");
mFadeAnimField.setAccessible(true);
mFadeAnim = (ViewPropertyAnimatorCompat) mFadeAnimField.get(mDelegate);
mActionModeField = mDelegateClass.getDeclaredField("mActionMode");
mActionModeField.setAccessible(true);
mActionMode = (android.support.v7.view.ActionMode) mActionModeField.get(mDelegate);
} else if (TextUtils.equals("AppCompatDelegateImplBase", mDelegateClass.getSimpleName())) {
Field mAppCompatCallbackField = mDelegateClass.getDeclaredField("mAppCompatCallback");
mAppCompatCallbackField.setAccessible(true);
mAppCompatCallback = (AppCompatCallback) mAppCompatCallbackField.get(mDelegate);
Field mWindowField = mDelegateClass.getDeclaredField("mWindow");
mWindowField.setAccessible(true);
mWindow = (Window) mWindowField.get(mDelegate);
}
mDelegateClass = mDelegateClass.getSuperclass();
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
if (mActionModePopup != null) {
mWindow.getDecorView().removeCallbacks(mShowActionModePopup);
}
if (mActionModeView != null) {
if (mFadeAnim != null) {
mFadeAnim.cancel();
}
mFadeAnim = ViewCompat.animate(mActionModeView).alpha(0.0F);
final PopupWindow mActionModePopupFinal = mActionModePopup;
final ActionBarContextView mActionModeViewFinal = mActionModeView;
final ViewPropertyAnimatorCompat mFadeAnimFinal = mFadeAnim;
final AppCompatCallback mAppCompatCallbackFinal = mAppCompatCallback;
final android.support.v7.view.ActionMode mActionModeFinal = mActionMode;
final Field mFadeAnimFieldFinal = mFadeAnimField;
final Field mActionModeFieldFinal = mActionModeField;
mFadeAnim.setListener(new ViewPropertyAnimatorListenerAdapter() {
public void onAnimationEnd(View view) {
mActionModeViewFinal.setVisibility(View.GONE);
if (mActionModePopupFinal != null) {
mActionModePopupFinal.dismiss();
} else if (mActionModeViewFinal.getParent() instanceof View) {
ViewCompat.requestApplyInsets((View) mActionModeViewFinal.getParent());
}
mActionModeViewFinal.removeAllViews();
mFadeAnimFinal.setListener((ViewPropertyAnimatorListener) null);
try {
if (mFadeAnimFieldFinal != null) {
mFadeAnimFieldFinal.set(mDelegate, null);
}
} catch (IllegalAccessException e) {
e.printStackTrace();
}
mWrapped.onDestroyActionMode(mode);
if (mAppCompatCallbackFinal != null) {
mAppCompatCallbackFinal.onSupportActionModeFinished(mActionModeFinal);
}
try {
if (mActionModeFieldFinal != null) {
mActionModeFieldFinal.set(mDelegate, null);
}
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
});
}
}
});
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}