android--------自定义控件ListView实现下拉刷新和上拉加载

开发项目过程中基本都会用到listView的下拉刷新和上滑加载更多，为了方便重写的ListView来实现下拉刷新，同时添加了上拉自动加载更多的功能。

Android下拉刷新可以分为两种情况：

1.获取更多的数据，按服务器数据库时间顺序存储入情况，此刻我们是获取是显示在我们应用中的数据更早前的数据，这也是最常见的情况，比如（微博获取更多信息，就是获取更多更早前的信息，然后动态的添加到已有的数据的下方）；

2.获取更多的最新的数据，其实还是一种获取更多的操作方式。

  1 public class MainActivity extends Activity implements IXListViewListener {
  2 
  3     private XListView listView;
  4     private int in = 6;
  5     private Adapter adapter;
  6     private Handler mHandler;
  7 
  8     @Override
  9     protected void onCreate(Bundle savedInstanceState) {
 10         // TODO Auto-generated method stub
 11         super.onCreate(savedInstanceState);
 12         setContentView(R.layout.activity_main);
 13         initView();
 14 
 15     }
 16 
 17     private void initView() {
 18         // TODO Auto-generated method stub
 19         listView = (XListView) findViewById(R.id.list);
 20         listView.setPullLoadEnable(true);
 21         adapter = new Adapter(MainActivity.this);
 22         listView.setAdapter(adapter);
 23         listView.setXListViewListener(this);
 24         mHandler = new Handler();
 25 
 26     }
 27 
 28     private void onLoad() {
 29         listView.stopRefresh();
 30         listView.stopLoadMore();
 31         listView.setRefreshTime("刚刚");
 32     }
 33 
 34     @Override
 35     public void onRefresh() {
 36         mHandler.postDelayed(new Runnable() {
 37             @Override
 38             public void run() {
 39                 onLoad();
 40             }
 41         }, 2000);
 42     }
 43 
 44     @Override
 45     public void onLoadMore() {
 46         mHandler.postDelayed(new Runnable() {
 47             @Override
 48             public void run() {
 49                 in += 4;
 50                 onLoad();
 51             }
 52         }, 2000);
 53     }
 54 
 55     private static String[] string = new String[] { "民政局于，请带好相关证件文书 ",
 56             "财政部发布公告，由于资金调整信息未完善，下周在发放工资，请各位见谅",
 57             "信息部门于2016-11-11日在某某地方开会，特此通知，请带好相关证件",
 58             "党政办发放通知，有关贫困地区扶贫政策，希望每个部门做出相应的方案，于2016-11-11开会讨论" };
 59 
 60     public class Adapter extends BaseAdapter {
 61 
 62         private Context context;
 63         private LayoutInflater inflater;
 64 
 65         public Adapter(Context context) {
 66             // TODO Auto-generated constructor stub
 67             this.context = context;
 68             inflater = LayoutInflater.from(context);
 69         }
 70 
 71         @Override
 72         public int getCount() {
 73             // TODO Auto-generated method stub
 74             return in;
 75         }
 76 
 77         @Override
 78         public Object getItem(int position) {
 79             // TODO Auto-generated method stub
 80             return position;
 81         }
 82 
 83         @Override
 84         public long getItemId(int position) {
 85             // TODO Auto-generated method stub
 86             return position;
 87         }
 88 
 89         @Override
 90         public View getView(int position, View convertView, ViewGroup parent) {
 91             // TODO Auto-generated method stub
 92             ViewHolder holder = null;
 93             final int index = position;
 94             if (convertView == null) {
 95                 convertView = inflater.inflate(R.layout.item_news_mass, null);
 96                 holder = new ViewHolder(convertView);
 97                 convertView.setTag(holder);
 98             } else {
 99                 holder = (ViewHolder) convertView.getTag();
100             }
101             holder.mName.setText(string[(position % 4)]);
102 
103             return convertView;
104         }
105 
106         class ViewHolder {
107             private ImageView mImageView;
108             private TextView mName;
109 
110             public ViewHolder(View view) {
111                 mName = (TextView) view.findViewById(R.id.item_news_msg);
112 
113             }
114         }
115 
116     }
117 }
118

由于代码太多，完整代码未给出，源码直接下载即可

源码下载： https://github.com/DickyQie/android-list-control