Android 常用代码---菜单

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;

}