Android menu 2-context menu

The context menu is different from the option menu. The option menu serves the Activity, while the context menu is registered to a View object.

If a View object registers a context menu, you can press and hold the View object to call out the context menu.

The context menu does not support shortcut keys, and its menu options cannot contain icons. However, you can specify icons for the title of the context menu.

The following simulated context menu

Main. xml layout File

<? Xml version = "1.0" encoding = "UTF-8"?>
<LinearLayout android: id = "@ + id/LinearLayout01"
Android: layout_width = "fill_parent"
Android: layout_height = "fill_parent"
Android: orientation = "vertical"
Xmlns: android = "http://schemas.android.com/apk/res/android">
<EditText android: text = "first text box"
Android: id = "@ + id/editText01"
Android: layout_width = "fill_parent"
Android: layout_height = "wrap_content"/>
<EditText android: text = "second text box"
Android: id = "@ + id/editText02"
Android: layout_width = "fill_parent"
Android: layout_height = "wrap_content"/>
</LinearLayout>

MeunActivity class

Package com. ljq. activity;

Import android. app. Activity;
Import android. OS. Bundle;
Import android. view. ContextMenu;
Import android. view. MenuItem;
Import android. view. View;
Import android. view. ContextMenu. ContextMenuInfo;
Import android. widget. EditText;

Public class MeunActivity extends Activity {
Private EditText editText01 = null;
Private EditText editText02 = null;

Private final int MENU1 = 1;
Private final int MENU2 = 2;
Private final int MENU3 = 3;
Private final int MENU4 = 4;
Private final int MENU5 = 5;

@ Override
Protected void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
SetContentView (R. layout. main );

EditText01 = (EditText) findViewById (R. id. editText01 );
EditText02 = (EditText) findViewById (R. id. editText02 );

// Register the context menu for the View object
This. registerForContextMenu (editText01 );
This. registerForContextMenu (editText02 );
}

/**
* Initialize the context menu
*
* The context menu is called once every time it is called.
*/
@ Override
Public void onCreateContextMenu (ContextMenu menu, View v,
ContextMenuInfo menuInfo ){
Menu. setHeaderIcon (R. drawable. header );
Switch (v. getId ()){
Case R. id. editText01:
Menu. add (0, MENU1, 0, "menu item 1 ");
Menu. add (0, MENU2, 0, "menu item 2 ");
Menu. add (0, MENU3, 0, "menu item 3 ");
Break;
Case R. id. editText02:
Menu. add (0, MENU4, 0, "menu item 4 ");
Menu. add (0, MENU5, 0, "menu item 5 ");
Break;
}
// Super. onCreateContextMenu (menu, v, menuInfo );
}

/**
* This event is called after the context menu option is selected.
*/
@ Override
Public boolean onContextItemSelected (MenuItem item ){
Switch (item. getItemId ()){
Case MENU1:
Case MENU2:
Case MENU3:
EditText01.append ("\ n" + item. getTitle () + "pressed ");
Break;
Case MENU4:
Case MENU5:
EditText02.append ("\ n" + item. getTitle () + "pressed ");
Break;
}
Return true;
}

}

Running result

1, 2,