android - 上下文操作菜单不会在视觉上超过 fragment 中的操作栏位置

Question

我有一个 Activity用Fragment包含 ListView与项目，用户可以点击并调用上下文操作模式。

我喜欢发生的事情是 documentation是说:

The contextual action bar is not necessarily associated with the action bar. They operate independently, even though the contextual action bar visually overtakes the action bar position.

但是，这是我目前遇到的行为。截至目前，上下文操作模式显示在 上方 ActionBar ，如下图所示。

到目前为止我尝试过但没有成功的:

• 移动 ActionMode来自 Fragment 的逻辑给楼主Activity .
• 设置<item name="windowActionModeOverlay">true</item>在我的主题中。
• 调用getActivity().getMenuInflater()而不是 mode.getMenuInflater() .

这是我调用上下文操作菜单的代码

public class NotesFragment extends Fragment implements View.OnClickListener{

    private ActionMode mActionMode;

    @Override
    public void checkBoxChecked(Note which) {
        if (mActionMode == null)
            mActionMode = getActivity().startActionMode(mActionModeCallback);
    }

    private ActionMode.Callback mActionModeCallback = new ActionMode.Callback() {

        // Called when the action mode is created; startActionMode() was called
        @Override
        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
            // Inflate a menu resource providing context menu items
            MenuInflater inflater = mode.getMenuInflater();
            inflater.inflate(R.menu.context, menu);
            return true;
        }

        // Called each time the action mode is shown. 
        // Always called after onCreateActionMode, but
        // may be called multiple times if the mode is invalidated.
        @Override
        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {

            return false; // Return false if nothing is done
        }

        // Called when the user selects a contextual menu item
        @Override
        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
            switch (item.getItemId()) {
                case R.id.context_delete:
                    //Do work unrelated to topic
                    mode.finish(); // Action picked, so close the CAB
                    return true;
                case R.id.context_move:
                    //Do work unrelated to topic
                    mode.finish(); // Action picked, so close the CAB
                    return true;
                default:
                    return false;
            }
        }

        // Called when the user exits the action mode
        @Override
        public void onDestroyActionMode(ActionMode mode) {
            mActionMode = null;
        }
    };

}

编辑:这是Activity , 其中Fragment居住地:

public class MainActivity extends ActionBarActivity implements DialogFragmentMoveNote.DialogFragmentMoveNoteListener,
        DialogFragmentRemoveNote.DialogFragmentRemoveNoteListener, DialogFragmentAddNewFolder.DialogFragmentAddNewFolderListener,
        DialogFragmentDeleteFolder.DialogFragmentDeleteFolderListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    public void onAddNewFolderPositiveClick(Folder folder) {
        //Tell the fragment to do work
    }

    @Override
    public void onRemoveNotesPositiveClick() {
        //Tell the fragment to do work
    }

    @Override
    public void onMoveNotePositiveClick(String chosenFolder) {
        //Tell the fragment to do work
    }

    @Override
    public void onDeleteFolderPositiveClick() {
        //Tell the fragment to do work
    }

    private void displayNoteDetailsFromWidget(String noteId){
        //Tell the fragment to do work
    }
}

为什么上下文操作菜单在视觉上没有超过 ActionBar , 作为文档状态应该是什么？

Answer 1

解决办法是添加

<item name="android:windowActionModeOverlay">true</item>

到我的主题，现在看起来像

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="android:windowActionModeOverlay">true</item>
</style>

我在查看 this answer 后找到了解决方案