安卓: ActionBar (安卓支持库)

Question

我对ActionBarCompat (来自支持库)有个问题。我不知道如何在ActionBar上添加几个按钮，在那里我画了一个黑色的圆圈(在屏幕截图上)以及屏幕左边的菜单。

拜托，我需要帮助！

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屏幕左边的ActionBar菜单代码。

     private DrawerLayout mDrawerLayout;
    private ListView mDrawer;
    private ActionBarHelper mActionBar;
    private ActionBarDrawerToggle mDrawerToggle;

...

        linearLayout = (LinearLayout)findViewById(R.id.fragment_container);
        linearLayout.setId(LAYOUT_ID);
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawer = (ListView) findViewById(R.id.left_drawer);
        mDrawerLayout.setDrawerListener(new DDrawerListener());
        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);

...
        fragments = new  Fragment[NUMBER_OF_TABS];
        mDrawer.setAdapter(new CustomAdapter(this));
        mDrawer.setOnItemClickListener(new DrawerItemClickListener());


        android.support.v7.app.ActionBar actionBar = getSupportActionBar();
        actionBar.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab));
        actionBar.setDisplayHomeAsUpEnabled(true);


        mActionBar = createActionBarHelper();
        mActionBar.init();


        mDrawer.setBackgroundColor(Color.parseColor("#e5c391"));
        mDrawer.setCacheColorHint(Color.parseColor("#e5c391"));

        initArrays(this);

        mDrawerToggle = new ActionBarDrawerToggle
        (this, mDrawerLayout,R.drawable.ic_drawer,R.string.app_drawer_open, R.string.app_drawer_close);

        if (savedInstanceState == null)
        {
            addFragment(0);
        }

(也欢迎其他方式)谢谢！新年快乐！

Answer 1

来自https://developer.android.com/training/basics/actionbar/adding-buttons.html

指定XML中的操作。

操作溢出中的所有操作按钮和其他可用项都在XML菜单资源中定义。要将操作添加到操作栏中，请在项目的res/menu/目录中创建一个新的XML文件。

为要包含在操作栏中的每个项添加一个元素。例如：

res/menu/main_activity_actions.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android" >
    <!-- Search, should appear as action button -->
    <item android:id="@+id/action_search"
          android:icon="@drawable/ic_action_search"
          android:title="@string/action_search"
          android:showAsAction="ifRoom" />
    <!-- Settings, should always be in the overflow -->
    <item android:id="@+id/action_settings"
          android:title="@string/action_settings"
          android:showAsAction="never" />
</menu>

将操作添加到ActionBar

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu items for use in the action bar
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main_activity_actions, menu);
    return super.onCreateOptionsMenu(menu);
}

响应动作按钮

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle presses on the action bar items
    switch (item.getItemId()) {
        case R.id.action_search:
            openSearch();
            return true;
        case R.id.action_settings:
            openSettings();
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}

Answer 2

请参阅Android门户中的这个备注。