java - 在右侧的应用栏中显示菜单

Question

您好，我正在学习 Material 设计，并且我创建了一个应用栏。当我向 main_menu 添加项目时，它会在下拉菜单中显示，但我希望它在应用栏中的设置图标之前显示一个新图标。

我的应用

1) 我想在设置图标旁边添加图标。但现在当我点击设置图标时，它会显示在下拉框中。

主菜单

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">

    <item android:id="@+id/action_settings"
        android:title="@string/action_settings"
        android:orderInCategory="100"
        app:showAsAction="never" />

    <item android:id="@+id/favorite"
        android:title="@string/favourite"
        android:orderInCategory="200"
        android:showAsAction="always"
        android:icon="@drawable/ic_favorite_white_24dp"
        />

</menu>

MainActivity.java

public class MainActivity extends ActionBarActivity {
    private Toolbar toolbar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        toolbar = (Toolbar) findViewById(R.id.app_bar);
        setSupportActionBar(toolbar);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }
        if (id == R.id.favorite){
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

Answer 1

试试这段代码

 <item android:id="@+id/favorite"
    android:title="@string/favourite"        
    android:showAsAction="always"
    android:icon="@drawable/ic_favorite_white_24dp"
    />

<item
    android:id="@+id/action_overflow"
    android:orderInCategory="100"
    android:title="@string/action_settings"
    android:icon="@mipmap/options"
    app:showAsAction="always">
    <menu>
        <item
            android:id="@+id/action_my_music"
            app:showAsAction="ifRoom"
            android:title="My music" />
        <item
            android:id="@+id/action_friends"
            app:showAsAction="ifRoom"
            android:title="Friend`s music" />            
    </menu>
</item>