是否可以向导航抽屉按钮添加声音？答案

【问题标题】：Is it possible to add sound to navigation drawer buttons?是否可以向导航抽屉按钮添加声音？
【发布时间】：2014-12-04 05:02:45
【问题描述】：

是否可以为导航抽屉按钮添加声音？通过这样做，我设法为普通按钮添加了声音；

final MediaPlayer sound = MediaPlayer.create(getApplicationContext(), R.raw.buttonsound)
Button button = (button) findViewById(R.id.button);
ok.setOnClickListener(new View.onClickListener(){
public void onClick(View arg0){
sound.start();
}
});

【问题讨论】：

标签： android button audio navigation drawer

【解决方案1】：

您的导航抽屉片段中必须有回调。这个回调接口应该在你的 Main Activity 中实现。然后你可以覆盖onClick。

从导航抽屉：

 @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View rootView = inflater.inflate(
                R.layout.fragment_navigation_drawer, container, false);
        mDrawerListView = (ListView) rootView.findViewById(R.id.listView);
        mDrawerListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        //A very basic callback, ideally you would want to perform null-checks
        mCallbacks.onNavigationDrawerItemSelected(position);
            }
        });

回调接口：

public static interface NavigationDrawerCallbacks {
    /**
     * Called when an item in the navigation drawer is selected.
     */
    void onNavigationDrawerItemSelected(int position);
    void onNotificationClicked();
}

在你的 MainActivity 中实现这个接口：

public class MyActivity extends FragmentActivity implements

        NavigationDrawerFragment.NavigationDrawerCallbacks,.......

最后覆盖 onClick：

    @Override
    public void onNavigationDrawerItemSelected(int position) {

        switch (position) {

            case 0 : playMusicAndHandleClick();
    }
}

【讨论】：