custom actionbar (for Android) MenuFragment 動的切替

actionbar.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">

    <ImageButton
        android:id="@+id/back"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical" />

    <TextView
        android:id="@+id/title"
        android:layout_width="0dip"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:gravity="center_vertical"
        android:text="Title"
        android:textColor="#FFFFFF" />

</LinearLayout>

AndroidManifest.xml

<activity
    android:name=".XxxActivity"
    android:theme="@style/Custom" />

fragment_menu.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android" >
    <item
        android:id="@+id/menu_edit"
        android:showAsAction="always"
        android:title="編集"/>
</menu>

MenuFragment.java

public class MenuFragment extends Fragment {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setHasOptionsMenu(true);
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.fragment_menu, menu);
        super.onCreateOptionsMenu(menu, inflater);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.menu_edit:
            break;
        }
        return super.onOptionsItemSelected(item);
    }
}

styles.xml

<style name="Custom" parent="android:Theme.Holo.Light">
    <!-- actionbar全体 -->
    <item name="android:actionBarStyle">@style/Custom.ActionBarStyle</item>

    <!-- actionItem -->
    <item name="android:actionMenuTextColor">#FFFFFF</item>
</style>

<style name="Custom.ActionBarStyle" parent="android:style/Widget.Holo.Light.ActionBar">
    <item name="android:background">@drawable/color_title</item>
    <item name="android:titleTextStyle">@style/Custom.ActionBarStyle.TitleTextStyle</item>
</style>

<style name="Custom.ActionBarStyle.TitleTextStyle" parent="android:style/TextAppearance.Holo.Widget.ActionBar.Title">
    <item name="android:textColor">#FFFFFF</item>
</style>

XxxActivity.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_xxx);

    // actionbar
    getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
    getActionBar().setCustomView(R.layout.actionbar);
    findViewById(R.id.back).setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
        }
    });

    // menu動的表示(show/hide で切替)
    MenuFragment menuFragment = null;
    if (getFragmentManager().findFragmentByTag("menu") == null) {
        menuFragment = new MenuFragment();
    }
    FragmentTransaction ft = getFragmentManager().beginTransaction();
    ft.add(menuFragment, "menu");
    ft.commit();
}