Android学习笔记——创建一个简单的上下文菜单ContextMenu

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/menu1"
        android:title="菜单一"
        />
    <item android:id="@+id/menu2"
        android:title="菜单二"
        />
</menu>

<?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">
        <TextView
            android:id="@+id/menuView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="AAAAAAA"/>
</LinearLayout>

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.context_menu);
    TextView view = (TextView)findViewById(R.id.menuView);
    registerForContextMenu(view);
}

@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    MenuInflater menuInflater = getMenuInflater();
    menuInflater.inflate(R.menu.my_menu, menu);
}

@Override
public boolean onContextItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.menu1:
            Toast.makeText(this,
                    "选择菜单一",
                    Toast.LENGTH_SHORT).show();
            return true;
        case R.id.menu2:
            Toast.makeText(this,
                    "选择菜单二",
                    Toast.LENGTH_SHORT).show();
            return true;
        default:
            return super.onContextItemSelected(item);
    }
}