Android中BaseAdapter的基本用法和加载自定义布局!

 public class MainActivity extends Activity {

     ListView listView = null;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         listView = (ListView) findViewById(R.id.base_list);

         BaseAdapter baseAdapter = new BaseAdapter() {
             @Override
             public int getCount() {  //返回多少，显示多少个列表项
                 return 10;
             }

             //该方法的返回值决定第position处列表项的内容
             @Override
             public Object getItem(int position) {
                 return position;
             }

             //该方法的返回值决定 第 i 处的列表项的ID
             @Override
             public long getItemId(int i) {
                 return i;
             }

             @Override
             public View getView(int i, View view, ViewGroup viewGroup) {
                 //  i   表示第几项<item>的id（从 0 开始）
                 //  view  表示每个item的view
                 //  viewGroup  表示父容器(例如:ListView,GridView,....)

                 //加载自定义的布局
                 view = LayoutInflater.from(getApplicationContext()).inflate(R.layout.listview_item_style, null);

                 if (view != null) {
                     TextView textView = (TextView) view.findViewById(R.id.context);
                     textView.setText("我爱你中国!!!" + i);
                     textView.setTextSize(24);

                     ImageView imageView = (ImageView) view.findViewById(R.id.image);
                     imageView.setBackgroundResource(R.drawable.ic_launcher);
                 }
                 return view;
             }
         };

         //设置baseAdapter
         listView.setAdapter(baseAdapter);
     }
 }