Question

我正在为chromecast开发用于Chromecast的钛安卓模块我试图创建一个菜单栏。我正在使用以下代码创建菜单：

protected Menu newMenuInstance(Context context) {
    try {
        Class <? > menuBuilderClass = Class.forName("com.android.internal.view.menu.MenuBuilder");
        Constructor <? > constructor = menuBuilderClass.getDeclaredConstructor(Context.class);

        return (Menu) constructor.newInstance(context);
    } catch (Exception e) {
        e.printStackTrace();
    }

    return null;
}

现在，我正在通过以下代码扩充菜单栏：

@Kroll.method
public void castButtonLoader() {

    Menu menu = newMenuInstance(TiApplication.getAppCurrentActivity());

    Log.i("menu ", "Menu instance created " + menu);
    int menuId = TiApplication.getAppRootOrCurrentActivity()
        .getResources()
        .getIdentifier("main", "menu",
    TiApplication.getInstance().getPackageName());
    Log.i("menu ID", "Menu id get =" + menuId);

    MenuInflater inflater = TiApplication.getAppCurrentActivity()
        .getMenuInflater();
    inflater.inflate(menuId, menu);

    MenuItem mediaRouteMenuItem;

    mediaRouteMenuItem = menu.findItem(menuId);
    Log.i("MediaRoute ", " Media route menu item ref =" + mediaRouteMenuItem);
    MediaRouteActionProvider mediaRouteActionProvider = (MediaRouteActionProvider) MenuItemCompat.getActionProvider(mediaRouteMenuItem);
    Log.i("MediaRouteActionProvider ", " MediaRouteActionProvider ref =" + mediaRouteActionProvider);
    // Set the MediaRouteActionProvider selector for device discovery.
    mediaRouteActionProvider.setRouteSelector(mMediaRouteSelector);

}

现在，在MenuItem上，它返回null。任何形式的帮助表示赞赏。感谢。

Answer 1

您可能需要使用AppCompat库中的MenuBuilder，因为这也是Titanium使用的。你试过吗？

MenuItem返回null

1 个答案: