如何使用ActionMenuView？

Question

由于Android 5.0不再支持SplitActionBar,因此我尝试使用ActionMenuView来实现SplitActionBar效果.但我找不到有关如何使用ActionMenuView的更多信息.

我知道我可以在布局文件中添加ActionMenuView,但我不知道如何添加菜单项.我似乎不能像使用SplitActionBar那样给他们充气.

你能给出一些关于如何使用ActonMenuView的示例代码吗？谢谢!

Answer 1

获取动作菜单以显示整个屏幕的图标宽度是一件苦差事.这是一个做你想做的事的例子.确保您的ActionMenuView XML项目的高度和宽度为wrap_content,然后是右侧的重力.将它包围在LinearLayout中,它采用整个宽度并提供背景颜色.

使用此代码初始化ActionMenuView(显然您需要更改按钮回调)

        ActionMenuView actionMenuView = (ActionMenuView) findViewById(R.id.editBar);

        final Context context = this;
        MenuBuilder menuBuilder = new MenuBuilder(context);
        menuBuilder.setCallback(new MenuBuilder.Callback() {
            @Override
            public boolean onMenuItemSelected(MenuBuilder menuBuilder, MenuItem menuItem) {
                return onOptionsItemSelected(menuItem);
            }

            @Override
            public void onMenuModeChange(MenuBuilder menuBuilder) {

            }
        });

        // setup a actionMenuPresenter which will use up as much space as it can, even with width=wrap_content
        ActionMenuPresenter presenter = new ActionMenuPresenter(context);
        presenter.setReserveOverflow(true);
        presenter.setWidthLimit(getResources().getDisplayMetrics().widthPixels, true);
        presenter.setItemLimit(Integer.MAX_VALUE);

        // open a menu xml into the menubuilder
        getMenuInflater().inflate(R.menu.editbar, menuBuilder);

        // runs presenter.initformenu(mMenu) too, setting up presenter's mmenu ref...  this must be before setmenuview
        menuBuilder.addMenuPresenter(presenter, this);

        // runs menuview.initialize too, so menuview.mmenu = mpresenter.mmenu
        actionMenuView.setPresenter(presenter);

        presenter.updateMenuView(true);

为了它的价值,我必须阅读支持库源代码8小时才能使其工作.文档是垃圾.

Answer 2

似乎API在此期间发生了变化.目前,以下代码有效:

    ActionMenuView actions = new ActionMenuView(activity);

    MenuBuilder menuBuilder = (MenuBuilder) actions.getMenu();

    menuBuilder.setCallback(new MenuBuilder.Callback() {
        @Override
        public boolean onMenuItemSelected(MenuBuilder menuBuilder, MenuItem menuItem) {
            return onOptionsItemSelected(menuItem);
        }

        @Override
        public void onMenuModeChange(MenuBuilder menuBuilder) {
        }
    });

    inflater.inflate(R.menu.my_menu, menuBuilder);