1 构造和处理选项菜单
权限
代码 /*
* Add this in your Activity
*/
private final int MENU_ITEM_0 = 0;
private final int MENU_ITEM_1 = 1;
/**
* Add menu items
*
* @see android.app.Activity#onCreateOptionsMenu(android.view.Menu)
*/
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0, MENU_ITEM_0, 0, "Menu Item 0");
menu.add(0, MENU_ITEM_1, 0, "Menu Item 1");
return true;
}
/**
* Define menu action
*
* @see android.app.Activity#onOptionsItemSelected(android.view.MenuItem)
*/
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_ITEM_0:
// put your code here
break;
case MENU_ITEM_1:
// put your code here
break;
default:
// put your code here
}
return false;
}
2 禁用菜单项
权限
代码 menu.findItem("yourItemId").setEnabled(false);
3 添加子菜单
权限
代码 SubMenu subMenu = menu.addSubMenu("YourMenu");
subMenu.add("YourSubMenu1");
4 XML菜单定义
权限
代码 <menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/menu_0" android:title="Menu Item 0" />
<item android:id="@+id/menu_1" android:title="Menu Item 1" />
</menu>
5 从XML解压菜单
权限
代码 /**
* Inflate Menu from XML
*/
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.yourXMLName, menu);
return true;
}