Simple use of PullToRefreshListView, pullrefreshlistview

Simple use of PullToRefreshListView, pullrefreshlistview

We have introduced the use of XListView before. Here we will introduce a similar list control: PullToRefreshListView, which comes from the open-source project PullToRefresh. There are some other controls in it, which are very convenient to use and directly use the source code:

MainActivity:

Package com. home. testpulltorefresh; import java. util. arrayList; import android. annotation. suppressLint; import android. app. activity; import android. OS. bundle; import android. OS. handler; import android. text. format. dateUtils; import android. widget. arrayAdapter; import android. widget. listView; import com. handmark. pulltorefresh. library. ILoadingLayout; import com. handmark. pulltorefresh. library. pullToRefreshBase; I Mport com. handmark. pulltorefresh. library. pullToRefreshBase. mode; import com. handmark. pulltorefresh. library. pullToRefreshBase. onRefreshListener2; import com. handmark. pulltorefresh. library. pullToRefreshListView; import com. home. testpulltorefreshlistview. r; public class MainActivity extends Activity {// list control private PullToRefreshListView mListView; // data set private ArrayList <String> items = new ArrayList <Str Ing> (); private int start = 0; // adapter private ArrayAdapter <String> adapter; private static int refreshCnt = 0; @ SuppressLint ("HandlerLeak ") private Handler handler = new Handler () {public void handleMessage (android. OS. message msg) {switch (msg. what) {case 1: setAdatapter (); mListView. onRefreshComplete (); break; default: break ;}};@overrideprotected void onCreate (Bundle savedInstanceState) {super. onCreate (sa VedInstanceState); setContentView (R. layout. main); initView (); geneItems ();}/*** set adapter */private void setAdatapter () {if (adapter = null) {adapter = new ArrayAdapter <String> (this, android. r. layout. simple_list_item_1, items); mListView. setAdapter (adapter);} else {adapter. notifyDataSetChanged () ;}}/*** initialize the page control */private void initView () {mListView = (PullToRefreshListView) findViewById (R. id. main_lv); // set Set mode mListView. setMode (Mode. BOTH); // supports pulling up/down at the same time // mListView. setMode (Mode. PULL_FROM_END); // only supports Pulling Up // mListView. setMode (Mode. PULL_FROM_START); // only supports Pulling Down. // you can set the Pulling Down listener to Mode. BOTH, listener needs to be set to OnRefreshListener2, and its onPullDownToRefresh and * onPullUpToRefresh Methods * If Mode is set to Mode. PULL_FROM_END or Mode. PULL_FROM_START *, the listener can be set to OnRefreshListener, and its onRefresh Method * listener can also be set to OnRefreshListener 2, * Mode. trigger onPullDownToRefresh when PULL_FROM_START; * Mode. PULL_FROM_END triggers onPullUpToRefresh * // sets the OnRefreshListener2 listener to mListView. setOnRefreshListener (new OnRefreshListener2 <ListView> () {@ Overridepublic void trim (PullToRefreshBase <ListView> refreshView) {setUpdateTime (refreshView); refreshItems ();} @ Overridepublic void onPullUpToRefresh (PullToRefreshBase <ListView> refreshView) {setUpda TeTime (refreshView); geneItems () ;}}); // set the OnRefreshListener listener status // mListView. setOnRefreshListener (new OnRefreshListener <ListView> () {// @ Override // public void onRefresh (PullToRefreshBase <ListView> refreshView) {// setUpdateTime (refreshView ); /// if Mode is set to Mode. PULL_FROM_END: load more business logic here /// if Mode is set to Mode. PULL_FROM_START. Here, refresh the business logic // geneItems (); // refreshItems (); //}); initListViewTipTe Xt ();}/*** prompt text when the initialization list is refreshed */private void initListViewTipText () {// set ILoadingLayout startLabels = mListView. getLoadingLayoutProxy (true, false); startLabels. setPullLabel ("pull-down refresh... "); startLabels. setReleaseLabel ("release now refresh... "); startLabels. setRefreshingLabel ("refreshing... "); // set the text ILoadingLayout endLabels = mListView. getLoadingLayoutProxy (false, true); endLabels. setPullLabel ("pull up to load more... "); endLabels. setR EleaseLabel ("Release loading more... "); endLabels. setRefreshingLabel ("loading... ");}/*** set the Update Time ** @ param refreshView */private void setUpdateTime (PullToRefreshBase <ListView> refreshView) {String label = DateUtils. formatDateTime (getApplicationContext (), System. currentTimeMillis (), DateUtils. FORMAT_SHOW_TIME | DateUtils. FORMAT_SHOW_DATE | DateUtils. FORMAT_ABBREV_ALL); refreshView. getLoadingLayoutProxy (). setLastUpdated Label (label);}/*** request data */private void geneItems () {for (int I = 0; I! = 5; ++ I) {items. add ("refresh cnt" + (++ start);} handler. sendEmptyMessageDelayed (1, 2000);}/*** refresh data */private void refreshItems () {start = ++ refreshCnt; items. clear (); for (int I = 0; I! = 5; ++ I) {items. add ("refresh cnt" + (++ start);} handler. sendEmptyMessageDelayed (1, 2000 );}}

PullToRefreshListView also has some other functions and listeners, which will not be described here.