The drop-down refresh list of third-party open-source frameworks (commonly used QQ )., Open-source framework

The drop-down refresh list of third-party open-source frameworks (commonly used QQ )., Open-source framework

PullToRefreshListView is a third-party open-source framework, which is used in pull-down and refresh lists.

(This open-source framework will not be updated after 2013)

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1 package com. lixu. kaiyuanxiala; 2 3 import java. util. arrayList; 4 5 import com. handmark. pulltorefresh. library. pullToRefreshBase; 6 import com. handmark. pulltorefresh. library. pullToRefreshBase. onRefreshListener; 7 import com. handmark. pulltorefresh. library. pullToRefreshListView; 8 import android. app. activity; 9 import android. OS. asyncTask; 10 import android. OS. bundle; 11 import android. widget. arrayAdap Ter; 12 import android. widget. listView; 13 import android. widget. textView; 14 import android. widget. toast; 15 16 public class MainActivity extends Activity {17 private ArrayList <String> date; 18 private int count = 0; 19 private ArrayAdapter <String> adapter; 20 PullToRefreshListView prolactin; 21 22 @ Override23 protected void onCreate (Bundle savedInstanceState) {24 super. onCreate (savedInstanceState); 25 setConte NtView (R. layout. activity_main); 26 27 date = new ArrayList <String> (); 28 adapter = new ArrayAdapter <String> (this, android. r. layout. simple_list_item_1, date); 29 30 prolactin = (PullToRefreshListView) findViewById (R. id. 5); 31 32. setAdapter (adapter); 33 34 TextView TV = new TextView (this); 35 TV. setText ("show me the content !! "); 36 37 prolactin. setEmptyView (TV); 38 // The monitoring drop-down event is executed every time onRefresh (). 39. setOnRefreshListener (new OnRefreshListener <ListView> () {40 41 @ Override42 public void onRefresh (PullToRefreshBase <ListView> refreshView) {43 new employee cute (); 44} 45 }); 46 47} 48 49 private class MyAsync extends AsyncTask {50 @ Override51 protected void onPreExecute () {52 // start refreshing 53 prolactin. setRefreshing (); 54} 55 56 @ Override57 protected Object doInBackground (Object... params) {58 59 return Count ++; 60} 61 62 @ Override63 protected void onPostExecute (Object result) {64 Toast. makeText (getApplicationContext (), "Update successful! ", 0 ). show (); 65 date. add (0, "" + result); 66 // refresh the adapter 67 adapter. notifyDataSetChanged (); 68 // end refresh 69 prolactin. onRefreshComplete (); 70 71} 72} 73}

Xml file:

 1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 2     xmlns:tools="http://schemas.android.com/tools" 3     android:layout_width="match_parent" 4     android:layout_height="match_parent" > 5  6     <com.handmark.pulltorefresh.library.PullToRefreshListView 7         android:id="@+id/prl" 8         android:layout_width="match_parent" 9         android:layout_height="match_parent"10          />11 12 </RelativeLayout>

Run: