Android入门练习——ListView列表

以你之姓@ 2022-02-17 09:41 249阅读 0赞

效果图：  
![20190419155013779.gif][]  
activity\_main.xml:

MainActivity.java:

public class MainActivity extends Activity { 
    	private String[] data={ "北京","天津","上海","深圳","宁波","杭州","丽江","西藏","青岛"};
    	private ListView lv;
        @Override
        protected void onCreate(Bundle savedInstanceState) { 
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            
            lv=(ListView)findViewById(R.id.lv);
            
            //定义适配器，通过泛型来指定适配的数据类型
            //listwiew会根据三个参数去遍历data中的每一个数据，每读出一条，就显示在第二个参数对应的布局中
            //ArrayAdapter<String> adapter=new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1, data);
            ArrayAdapter<String> adapter=new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_single_choice, data);//单选按钮
            lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
            lv.setAdapter(adapter);//建立listview和数据之间的关联
            
            lv.setOnItemClickListener(new OnItemClickListener() { 
    
    			@Override
    			public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
    				Toast.makeText(MainActivity.this, "你点击了"+data[position], 0).show();
    				
    			}
    		});
        }
    }

[20190419155013779.gif]: /images/20220217/92a7884a6558480e9f741ec90dd48960.png