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

 <?xml version="1.0" encoding="utf-8"?> 
 <RelativeLayout 
  style="@style/BaseStyle.White" 
  xmlns:android="http://schemas.android.com/apk/res/android"> 
  
  <!--下拉刷新--> 
  <android.support.v4.widget.SwipeRefreshLayout 
  android:id="@+id/srl_refresh" 
  style="@style/BaseStyle"> 
  
  <!--上拉更多--> 
  <ListView 
  android:id="@+id/lv_person_goods" 
  style="@style/BaseStyle" 
  android:gravity="center" 
  android:horizontalSpacing="@dimen/margin_standard" 
  android:numColumns="2" 
  android:scrollbarStyle="outsideOverlay" 
  android:verticalSpacing="@dimen/margin_standard"/> 
  </android.support.v4.widget.SwipeRefreshLayout> 
  
  <!--数据为空时显示的View--> 
  <TextView 
  android:id="@+id/tv_no_data" 
  style="@style/BaseStyle.FullWrap" 
  android:layout_marginTop="@dimen/textview_width_small" 
  android:gravity="center_horizontal" 
  android:text="暂无数据" 
  android:textColor="@color/text_title_standard" 
  android:textSize="@dimen/font_size_small" 
  android:visibility="gone"/> 
  
 </RelativeLayout> 

2:在主页面使用

[java] view plain copy

 /** 
  * Created by pengkv on 2014/12/5. 
  * 我的宝贝列表页面,用于选择添加到拍卖场 
  */ 
 public class MySaleGoodsListViewActivity extends VolleyActivity implements IInit, IResponseHandler, IPagination, SwipeRefreshLayout.OnRefreshListener {  
  
  private int auctionID;  
  private GoodsInfoViewModel mViewModel;  
  private TextView mEmptyTV;//空白视图 
  private ListView mListView;//专场列表 
  private PersonGoodsListAdapter mAdapter;//适配器 
  private SwipeRefreshLayout mSwipeRefreshLayout;//下拉刷新布局 
  
  @Override 
  protected void onCreate(Bundle savedInstanceState) {  
  super.onCreate(savedInstanceState);  
         setContentView(R.layout.activity_me_auction_goods_list);  
  
         init();  
     }  
  
  @Override 
  public void init() {  
         ActionBarUtil.setup(this, "我店铺的宝贝");  
  
         auctionID = getIntent().getIntExtra(EnumIntentKey.AUCTION_ID.toString(), 0);  
  
         mListView = (ListView) findViewById(R.id.lv_person_goods);  
         mEmptyTV = (TextView) findViewById(R.id.tv_no_data);  
  
         mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.srl_refresh);//下拉刷新组件 
         mSwipeRefreshLayout.setOnRefreshListener(this);//设置刷新监听器 
         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 
  
         mViewModel = new GoodsInfoViewModel();  
         fetchData(FIRST);//得到喜欢列表数据 
     }  
  
  @Override 
  public void fetchData(int tag) {  
         GetGoodsListForSellParam param = new GetGoodsListForSellParam(Data.getUserID(), 1, mViewModel.getPageIndex(), Data.PAGE_SIZE_MEDIUM);  
         SquareApi.getGoodsListForSell(this, param, tag);  
     }  
  
  /** 
      * 更新适配器 
      */ 
  @Override 
  protected void onRestart() {  
  super.onRestart();  
         mViewModel.reset();  
         fetchData(FIRST);//得到喜欢列表数据 
     }  
  
  @Override 
  public void updateUI(Object response, final int tag) {  
  if (response == null) return;  
  
  if (tag == FIRST) {  
  //得到喜欢列表数据 
             mViewModel.inflate(response);  
  
  //通过判断喜欢列表适配器mAdapter是否为空来做分页处理 
  if (mAdapter == null) {  
  //当适配器为空 
                 mSwipeRefreshLayout.setRefreshing(false);//下拉刷新组件停止刷新 
  
                 mAdapter = new PersonGoodsListAdapter(this, mViewModel.getList());  
                 mListView.setAdapter(mAdapter);//ListView绑定喜欢适配器 
  
  /** 
                  *  上拉更多 
                  */ 
                 mListView.setOnScrollListener(new AbsListView.OnScrollListener() {  
  @Override 
  public void onScrollStateChanged(AbsListView view, int scrollState) {  
  switch (scrollState) {  
  case SCROLL_STATE_IDLE:  
  
  if (mListView.getLastVisiblePosition() == mViewModel.getList().size() - 1) {  
  if (!mViewModel.isComplete()) {  
                                         fetchNewData(FIRST);  
                                     }  
                                 }  
  break;  
                         }  
                     }  
  
  @Override 
  public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {  
                     }  
                 });  
  
                 mListView.setEmptyView(mEmptyTV);//将此图片绑定到喜欢列表ListView 
  
             } else {  
                 mAdapter.notifyDataSetChanged();//适配器更新数据 
             }  
  
             mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {  
  @Override 
  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {  
                     Intent i = new Intent();  
  if (getIntent().getBooleanExtra(EnumIntentKey.IS_SELECT_LINK.toString(), false)) { // 选择发送链接 
                         i.putExtra(EnumIntentKey.GOODS_ID.toString(), mViewModel.getList().get(position).getGoodsID());  
                         i.putExtra(EnumIntentKey.GOODS_NAME.toString(), mViewModel.getList().get(position).getGoodsName());  
                         setResult(RESULT_OK, i);  
                     } else {  // 添加到专场 
                         i.setClass(MySaleGoodsListViewActivity.this, AddAuctionGoodsActivity.class);  
                         i.putExtra(EnumIntentKey.AUCTION_GOODS_ID.toString(), mViewModel.getList().get(position).getGoodsID());  
                         i.putExtra(EnumIntentKey.IS_DO.toString(), true);  
                         i.putExtra(EnumIntentKey.AUCTION_ID.toString(), auctionID);  
                         startActivity(i);  
                     }  
                     finish();  
                 }  
             });  
         }  
     }  
  
  @Override 
  public void fetchNewData(int tag) {  
         mViewModel.increasePageIndex();  
         fetchData(FIRST);//得到喜欢的拍品列表数据 
     }  
  
  @Override 
  public void onRefresh() {  
         mViewModel.reset();//重置页索引和完成状态 
         mAdapter = null;//清空适配器 
         fetchData(FIRST);//得到喜欢的拍品列表数据 
     }  
 }  

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

 mListView.setOnScrollListener(new AbsListView.OnScrollListener() {  
  @Override 
  public void onScrollStateChanged(AbsListView view, int scrollState) {  
  switch (scrollState) {  
  case SCROLL_STATE_IDLE:  
  
  if (mListView.getLastVisiblePosition() == mViewModel.getList().size() - 1) {  
  if (!mViewModel.isComplete()) {  
                                       fetchNewData(FIRST);  
                                   }  
                               }  
  break;  
                       }  
                   }  
  
  @Override 
  public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {  
                   }  
               });