自己写了一个简单的上拉刷新，下面是基本使用。

1. 布局

    <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipe_refresh"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <!--is_range_changed 参数为使用局部刷新 建议item中有图片的使用该参数-->
        <ip.cynic.pullrecycler.PullRecyclerView
            app:is_range_changed="true"
            android:id="@+id/recycler_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>
   
    </android.support.v4.widget.SwipeRefreshLayout>
   

2. adapter 继承 PullRefreshAdapter，瀑布流继承 StaggeredGridAdapter。 PullRefreshAdapter 已实现item点击事件实现 PullOnItemClickListener 接口即可。

3. 代码设置

    mRecyclerView.setLayoutManager(mLayoutManager);
    mAdapter = new MyAdapter(datas);
    mRecyclerView.setAdapter(mAdapter);
    
    mRecyclerView.setSwipeRefreshLayout(mSwipeRefreshLayout);
    mRecyclerView.setOnPullRefreshListener(new PullRecyclerView.PullRecyclerRefreshListener() {
      @Override
      public void loadMore() {
          new Thread() {
              @Override
              public void run() {
                  SystemClock.sleep(2000);
                  refreshData();
                  runOnUiThread(new Runnable() {
                      @Override
                      public void run() {
                          mRecyclerView.onRefreshComplete(true);
                      }
                  });
              }
          }.start();
      }
    
      @Override
      public void onRefresh() {
            mRecyclerView.onRefreshComplete(false);
      }
    });
   

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