Question

我遇到ActionBarCompat问题（来自支持库）。我不知道如何在ActionBar上添加几个按钮，我在屏幕左侧的菜单中绘制了黑色圆圈（截图）。

拜托，我需要帮助！

enter image description here

屏幕左侧ActionBar中的菜单代码。

     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);
        }

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：

以XML格式指定操作

动作溢出中可用的所有操作按钮和其他项目都在XML菜单资源中定义。要向操作栏添加操作，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目添加元素。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>

将操作添加到操作栏

@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);
}

回应行动按钮

@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 Developer门户网站中的note。

Android：ActionBar（Android支持库）

2 个答案: