Android menu

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http://developer.android.com/guide/topics/ui/menus.html

Hello, Android p.61 -

  1. create res/menu/menu.xml 
    <?xml version="1.0" encoding="UTF-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/menu_help"
        android:title="@string/menu_help_label"
        android:alphabeticShortcut="@string/menu_help_shortcut"
        android:icon="@android:drawable/ic_menu_help" />
    <item android:id="@+id/menu_about"
        android:title="@string/menu_about_label"
        android:alphabeticShortcut="@string/menu_about_shortcut"
        android:icon="@android:drawable/ic_menu_info_details" />
    <item android:id="@+id/menu_settings"
        android:title="@string/menu_settings_label"
        android:alphabeticShortcut="@string/menu_settings_shortcut"
        android:icon="@android:drawable/ic_menu_preferences" />
    <item android:id="@+id/menu_exit"
        android:title="@string/menu_exit_label"
        android:alphabeticShortcut="@string/menu_exit_shortcut"
        android:icon="@android:drawable/ic_menu_close_clear_cancel" />
</menu>
  2. add menu labels to res/values/strings.xml 
    <string name="menu_about_label">About</string>
<string name="menu_about_shortcut">a</string>
<string name="menu_exit_label">Exit</string>
<string name="menu_exit_shortcut">x</string>
<string name="menu_help_label">Help</string>
<string name="menu_help_shortcut">h</string>
<string name="menu_settings_label">Settings</string>
<string name="menu_settings_shortcut">s</string>
  3. in your main Activity, override onCreateOptionsMenu to inflate the menu 
    /* Inflates the menu */
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu, menu);
    return true;
}
  4. in your main Activity, override onOptionsItemSelected to handle menu selections 
    /* Handles menu selections */
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case R.id.menu_about:
        startActivity(new Intent(this, About.class));
        return true;
    case R.id.menu_exit:
        finish();
        return true;
    }
    return false;
}