ArrayAdapter入门

public class MainActivity extends Activity {

      private ListView lv;

      

      @Override

      protected void onCreate(Bundle savedInstanceState) {

             super.onCreate(savedInstanceState);

            setContentView(R.layout. activity_main);

            

             lv=(ListView) findViewById(R.id. lv);

            

            String [] objects={ "设置","音量" ,"应用" ,"电池" ,"存储" };

            

             //创建arrayAdapter适配器     1.上下文   2.要转化的view的 xml文件的id       3.需要修改的控件    4.修改后要显示的内容

             lv.setAdapter( new ArrayAdapter<String>( this, R.layout. item, R.id.info, objects));

            

            

      }

      @Override

      public boolean onCreateOptionsMenu(Menu menu) {

             // Inflate the menu; this adds items to the action bar if it is present.

            getMenuInflater().inflate(R.menu. main, menu);

             return true;

      }