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);
    }
}