SwipeRefreshLayout实现上拉下拉刷新

1:在布局中添加SwipeRefreshLayout和Listview组件

[html] view
plain copy

1. <?xml version="1.0" encoding="utf-8"?>  
2. <RelativeLayout  
3.     style="@style/BaseStyle.White"  
4.     xmlns:android="http://schemas.android.com/apk/res/android">  
5.   
6.     <!--下拉刷新-->  
7.     <android.support.v4.widget.SwipeRefreshLayout  
8.         android:id="@+id/srl_refresh"  
9.         style="@style/BaseStyle">  
10.   
11.         <!--上拉更多-->  
12.         <ListView  
13.             android:id="@+id/lv_person_goods"  
14.             style="@style/BaseStyle"  
15.             android:gravity="center"  
16.             android:horizontalSpacing="@dimen/margin_standard"  
17.             android:numColumns="2"  
18.             android:scrollbarStyle="outsideOverlay"  
19.             android:verticalSpacing="@dimen/margin_standard"/>  
20.     </android.support.v4.widget.SwipeRefreshLayout>  
21.   
22.     <!--数据为空时显示的View-->  
23.     <TextView  
24.         android:id="@+id/tv_no_data"  
25.         style="@style/BaseStyle.FullWrap"  
26.         android:layout_marginTop="@dimen/textview_width_small"  
27.         android:gravity="center_horizontal"  
28.         android:text="暂无数据"  
29.         android:textColor="@color/text_title_standard"  
30.         android:textSize="@dimen/font_size_small"  
31.         android:visibility="gone"/>  
32.   
33. </RelativeLayout>  

2:在主页面使用

[java] view
plain copy

1. /** 
2.  * Created by pengkv on 2014/12/5. 
3.  * 我的宝贝列表页面,用于选择添加到拍卖场 
4.  */  
5. public class MySaleGoodsListViewActivity extends VolleyActivity implements IInit, IResponseHandler, IPagination, SwipeRefreshLayout.OnRefreshListener {  
6.   
7.     private int auctionID;  
8.     private GoodsInfoViewModel mViewModel;  
9.     private TextView mEmptyTV;//空白视图  
10.     private ListView mListView;//专场列表  
11.     private PersonGoodsListAdapter mAdapter;//适配器  
12.     private SwipeRefreshLayout mSwipeRefreshLayout;//下拉刷新布局  
13.   
14.     @Override  
15.     protected void onCreate(Bundle savedInstanceState) {  
16.         super.onCreate(savedInstanceState);  
17.         setContentView(R.layout.activity_me_auction_goods_list);  
18.   
19.         init();  
20.     }  
21.   
22.     @Override  
23.     public void init() {  
24.         ActionBarUtil.setup(this, "我店铺的宝贝");  
25.   
26.         auctionID = getIntent().getIntExtra(EnumIntentKey.AUCTION_ID.toString(), 0);  
27.   
28.         mListView = (ListView) findViewById(R.id.lv_person_goods);  
29.         mEmptyTV = (TextView) findViewById(R.id.tv_no_data);  
30.   
31.         mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.srl_refresh);//下拉刷新组件  
32.         mSwipeRefreshLayout.setOnRefreshListener(this);//设置刷新监听器  
33.         mSwipeRefreshLayout.setColorSchemeResources(R.color.background_blue_standard, R.color.white, R.color.background_blue_standard, R.color.white);//设置下拉刷新组件的颜色  
34.   
35.         mViewModel = new GoodsInfoViewModel();  
36.         fetchData(FIRST);//得到喜欢列表数据  
37.     }  
38.   
39.     @Override  
40.     public void fetchData(int tag) {  
41.         GetGoodsListForSellParam param = new GetGoodsListForSellParam(Data.getUserID(), 1, mViewModel.getPageIndex(), Data.PAGE_SIZE_MEDIUM);  
42.         SquareApi.getGoodsListForSell(this, param, tag);  
43.     }  
44.   
45.     /** 
46.      * 更新适配器 
47.      */  
48.     @Override  
49.     protected void onRestart() {  
50.         super.onRestart();  
51.         mViewModel.reset();  
52.         fetchData(FIRST);//得到喜欢列表数据  
53.     }  
54.   
55.     @Override  
56.     public void updateUI(Object response, final int tag) {  
57.         if (response == null) return;  
58.   
59.         if (tag == FIRST) {  
60.             //得到喜欢列表数据  
61.             mViewModel.inflate(response);  
62.   
63.             //通过判断喜欢列表适配器mAdapter是否为空来做分页处理  
64.             if (mAdapter == null) {  
65.                 //当适配器为空  
66.                 mSwipeRefreshLayout.setRefreshing(false);//下拉刷新组件停止刷新  
67.   
68.                 mAdapter = new PersonGoodsListAdapter(this, mViewModel.getList());  
69.                 mListView.setAdapter(mAdapter);//ListView绑定喜欢适配器  
70.   
71.                 /** 
72.                  *  上拉更多 
73.                  */  
74.                 mListView.setOnScrollListener(new AbsListView.OnScrollListener() {  
75.                     @Override  
76.                     public void onScrollStateChanged(AbsListView view, int scrollState) {  
77.                         switch (scrollState) {  
78.                             case SCROLL_STATE_IDLE:  
79.   
80.                                 if (mListView.getLastVisiblePosition() == mViewModel.getList().size() - 1) {  
81.                                     if (!mViewModel.isComplete()) {  
82.                                         fetchNewData(FIRST);  
83.                                     }  
84.                                 }  
85.                                 break;  
86.                         }  
87.                     }  
88.   
89.                     @Override  
90.                     public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {  
91.                     }  
92.                 });  
93.   
94.                 mListView.setEmptyView(mEmptyTV);//将此图片绑定到喜欢列表ListView  
95.   
96.             } else {  
97.                 mAdapter.notifyDataSetChanged();//适配器更新数据  
98.             }  
99.   
100.             mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {  
101.                 @Override  
102.                 public void onItemClick(AdapterView<?> parent, View view, int position, long id) {  
103.                     Intent i = new Intent();  
104.                     if (getIntent().getBooleanExtra(EnumIntentKey.IS_SELECT_LINK.toString(), false)) { // 选择发送链接  
105.                         i.putExtra(EnumIntentKey.GOODS_ID.toString(), mViewModel.getList().get(position).getGoodsID());  
106.                         i.putExtra(EnumIntentKey.GOODS_NAME.toString(), mViewModel.getList().get(position).getGoodsName());  
107.                         setResult(RESULT_OK, i);  
108.                     } else {  // 添加到专场  
109.                         i.setClass(MySaleGoodsListViewActivity.this, AddAuctionGoodsActivity.class);  
110.                         i.putExtra(EnumIntentKey.AUCTION_GOODS_ID.toString(), mViewModel.getList().get(position).getGoodsID());  
111.                         i.putExtra(EnumIntentKey.IS_DO.toString(), true);  
112.                         i.putExtra(EnumIntentKey.AUCTION_ID.toString(), auctionID);  
113.                         startActivity(i);  
114.                     }  
115.                     finish();  
116.                 }  
117.             });  
118.         }  
119.     }  
120.   
121.     @Override  
122.     public void fetchNewData(int tag) {  
123.         mViewModel.increasePageIndex();  
124.         fetchData(FIRST);//得到喜欢的拍品列表数据  
125.     }  
126.   
127.     @Override  
128.     public void onRefresh() {  
129.         mViewModel.reset();//重置页索引和完成状态  
130.         mAdapter = null;//清空适配器  
131.         fetchData(FIRST);//得到喜欢的拍品列表数据  
132.     }  
133. }  

解析:

(下拉刷新)主页面需要实现SwipeRefreshLayout.OnRefreshListener接口,然后在

[java] view
plain copy

1. @Override  
2.    public void onRefresh() {  
3.    }  

方法中实现更新

(上拉更多)上拉更多需要监听setOnScrollListener()方法

[java] view
plain copy

1. mListView.setOnScrollListener(new AbsListView.OnScrollListener() {  
2.                   @Override  
3.                   public void onScrollStateChanged(AbsListView view, int scrollState) {  
4.                       switch (scrollState) {  
5.                           case SCROLL_STATE_IDLE:  
6.   
7.                               if (mListView.getLastVisiblePosition() == mViewModel.getList().size() - 1) {  
8.                                   if (!mViewModel.isComplete()) {  
9.                                       fetchNewData(FIRST);  
10.                                   }  
11.                               }  
12.                               break;  
13.                       }  
14.                   }  
15.   
16.                   @Override  
17.                   public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {  
18.                   }  
19.               });