转：ListView：长按弹出上下文菜单(ContextMenu) registerForContextMenu(getListView())

在看别人源代码的时候发现有注册上下文菜单，于是找到这篇文章，算是自己收藏吧，copy过来并未对格式进行排版，如果感兴趣，还请到原文查看，支持原创。ps：原文链接见最下方

有两种方法实现长按弹出上下文菜单:

方法一：

1）注册上下文菜单

[java] view plaincopyprint?

1. /**
2. * 上下文菜单演示Demo
3. *
4. * @author CodingMyWorld 2011-8-27 下午03:22:39
5. */
6. publicclass SampleContextMenuActivity extends ListActivity { 
7.     privatestaticfinal String TAG ="SampleContextMenuActivity"; 
9. @Override
10.     protectedvoid onCreate(Bundle savedInstanceState) { 
11. super.onCreate(savedInstanceState); 
12. // 显示列表
13.         simpleShowList(); 
14. // 为所有列表项注册上下文菜单
15. this.registerForContextMenu(getListView()); 
16.     } 
18.     privatevoid simpleShowList() { 
19. // list item
20.         String[] files =new String[] { 
21. "文件1", 
22. "文件2", 
23. "文件3", 
24. "文件4"
25.         }; 
26. // simple array adapter
27.         ArrayAdapter<String> adapter =new ArrayAdapter<String>( 
28. this,  
29.                 android.R.layout.simple_list_item_1, 
30.                 files); 
31. // set adapter
32. this.setListAdapter(adapter); 
33.         Log.v(TAG, "show simple list"); 
34.     } 
35. } 

/**
 * 上下文菜单演示Demo
 * 
 * @author CodingMyWorld 2011-8-27 下午03:22:39
 */
publicclass SampleContextMenuActivity extends ListActivity {
    privatestaticfinal String TAG ="SampleContextMenuActivity";

    @Override
    protectedvoid onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // 显示列表
        simpleShowList();
        // 为所有列表项注册上下文菜单
this.registerForContextMenu(getListView());
    }

    privatevoid simpleShowList() {
        // list item
        String[] files =new String[] {
            "文件1",
            "文件2",
            "文件3",
            "文件4"
        };
        // simple array adapter
        ArrayAdapter<String> adapter =new ArrayAdapter<String>(
                this, 
                android.R.layout.simple_list_item_1,
                files);
        // set adapter
this.setListAdapter(adapter);
        Log.v(TAG, "show simple list");
    }
}

2）生成上下文菜单

在activity中重新onCreateContextMenu()方法

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1. @Override
2. publicvoid onCreateContextMenu(ContextMenu menu, View v, 
3.         ContextMenuInfo menuInfo) { 
4.     Log.v(TAG, "populate context menu"); 
5. // set context menu title
6.     menu.setHeaderTitle("文件操作"); 
7. // add context menu item
8.     menu.add(0, 1, Menu.NONE, "发送"); 
9.     menu.add(0, 2, Menu.NONE, "标记为重要"); 
10.     menu.add(0, 3, Menu.NONE, "重命名"); 
11.     menu.add(0, 4, Menu.NONE, "删除"); 
12. } 

@Override
publicvoid onCreateContextMenu(ContextMenu menu, View v,
        ContextMenuInfo menuInfo) {
    Log.v(TAG, "populate context menu");
    // set context menu title
    menu.setHeaderTitle("文件操作");
    // add context menu item
    menu.add(0, 1, Menu.NONE, "发送");
    menu.add(0, 2, Menu.NONE, "标记为重要");
    menu.add(0, 3, Menu.NONE, "重命名");
    menu.add(0, 4, Menu.NONE, "删除");
}

3）响应上下文菜单项

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1. @Override
2. publicboolean onContextItemSelected(MenuItem item) { 
3. // 得到当前被选中的item信息
4.     AdapterContextMenuInfo menuInfo = (AdapterContextMenuInfo) item.getMenuInfo(); 
5.     Log.v(TAG, "context item seleted ID="+ menuInfo.id); 
7. switch(item.getItemId()) { 
8.     case1: 
9. // do something
10. break; 
11.     case2: 
12. // do something
13. break; 
14.     case3: 
15. // do something
16. break; 
17.     case4: 
18. // do something
19. break; 
20. default: 
21.         returnsuper.onContextItemSelected(item); 
22.     } 
23.     returntrue; 
24. } 

@Override
publicboolean onContextItemSelected(MenuItem item) {
    // 得到当前被选中的item信息
    AdapterContextMenuInfo menuInfo = (AdapterContextMenuInfo) item.getMenuInfo();
    Log.v(TAG, "context item seleted ID="+ menuInfo.id);
    
    switch(item.getItemId()) {
    case1:
        // do something
break;
    case2:
        // do something
break;
    case3:
        // do something
break;
    case4:
        // do something
break;
    default:
        returnsuper.onContextItemSelected(item);
    }
    returntrue;
}

方法二、

1）设置上下文菜单监听

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1. @Override
2. protected void onCreate(Bundle savedInstanceState) { 
3. super.onCreate(savedInstanceState); 
4.         setContentView(R.layout.timing_sms_list_screen); 
5.         mTimingListView = getListView(); 
6.         mEmptyView = (LinearLayout)findViewById(R.id.timing_empty_view); 
7. //      mTimingListView.setEmptyView(mEmptyView);
8.         doQuery(); 
9.         mTimingListView.setOnCreateContextMenuListener(mConvListOnCreateContextMenuListener); 
10.     } 

@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.timing_sms_list_screen);
		mTimingListView = getListView();
		mEmptyView = (LinearLayout)findViewById(R.id.timing_empty_view);
//		mTimingListView.setEmptyView(mEmptyView);
		doQuery();
		mTimingListView.setOnCreateContextMenuListener(mConvListOnCreateContextMenuListener);
	}

2）定义上下文菜单监听器

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1. <pre class="java" name="code">private final OnCreateContextMenuListener mConvListOnCreateContextMenuListener = new OnCreateContextMenuListener() { 
2. @Override
3. public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { 
4.             Toast.makeText(getApplicationContext(), "onCreateContextMenu()", 1000).show(); 
5.             menu.add(0, MENU_DELETE, 0, R.string.ti_delete); 
6.             menu.add(0, MENU_EDIT, 1, R.string.ti_edit); 
7.             menu.add(0, MENU_SEND_IMMEDIATE, 2, R.string.ti_send_immediately); 
8.         } 
9.     };</pre><br><br> 

[java] view plaincopyprint? 



  
  
  
  



   
   
   
   
 private final OnCreateContextMenuListener mConvListOnCreateContextMenuListener = new OnCreateContextMenuListener() {  


   
   
   
   
         @Override  


   
   
   
   
         public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {  


   
   
   
   
             Toast.makeText(getApplicationContext(), "onCreateContextMenu()", 1000).show();  


   
   
   
   
             menu.add(0, MENU_DELETE, 0, R.string.ti_delete);  


   
   
   
   
             menu.add(0, MENU_EDIT, 1, R.string.ti_edit);  


   
   
   
   
             menu.add(0, MENU_SEND_IMMEDIATE, 2, R.string.ti_send_immediately);  


   
   
   
   
         }  


   
   
   
   
     };  


  
  
  
  

private final OnCreateContextMenuListener mConvListOnCreateContextMenuListener = new OnCreateContextMenuListener() {
		@Override
		public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
			Toast.makeText(getApplicationContext(), "onCreateContextMenu()", 1000).show();
			menu.add(0, MENU_DELETE, 0, R.string.ti_delete);
			menu.add(0, MENU_EDIT, 1, R.string.ti_edit);
			menu.add(0, MENU_SEND_IMMEDIATE, 2, R.string.ti_send_immediately);
		}
	};

3）响应上下文菜单项

[java] view plaincopyprint?

1. @Override
2. public boolean onContextItemSelected(MenuItem item) { 
3.         TimingSmsDataService service = new TimingSmsDataService(getApplicationContext()); 
4. switch (item.getItemId()) { 
5. case MENU_DELETE: 
6.                 AdapterContextMenuInfo info = (AdapterContextMenuInfo)item.getMenuInfo(); 
7.                 Toast.makeText(getApplicationContext(), "id: "+info.id, 1500).show(); 
8. //              service.deleteTimingSmsById(info.id);
9. break; 
10.         } 
11. return super.onContextItemSelected(item); 
12.     } 

@Override
	public boolean onContextItemSelected(MenuItem item) {
    	TimingSmsDataService service = new TimingSmsDataService(getApplicationContext());
    	switch (item.getItemId()) {
        	case MENU_DELETE:
        		AdapterContextMenuInfo info = (AdapterContextMenuInfo)item.getMenuInfo();
        		Toast.makeText(getApplicationContext(), "id: "+info.id, 1500).show();
//        		service.deleteTimingSmsById(info.id);
        		break;
    	}
		return super.onContextItemSelected(item);
	}