The use of open source project Pulltorefresh for Android Learning

First download Android-pulltorefresh-master

Https://github.com/chrisbanes/Android-PullToRefresh

Unzip it after downloading

Now we use Eclipse to create a project named Pulltorefresh

Bring the library above to our project

Open Project's Project.Properties file after successful introduction we can see

android.library.reference.1=. /android-pulltorefresh-master/library

This means that it can be referenced successfully.

We create a layout file in Res/layout main.xml

<?xml version="1.0"encoding="Utf-8"? ><linearlayout xmlns:android="http://schemas.android.com/apk/res/android"Android:layout_width="match_parent"Android:layout_height="match_parent"Android:background="#FFFFFF"android:orientation="Vertical"> <!--xmlns:ptr ="Http://schemas.android.com/apk/res-auto"For us to use some of the attributes in the Pulltorefresh need to be cited namespace-<Com.handmark.pulltorefresh.library.PullToRefreshListView xmlns:ptr="Http://schemas.android.com/apk/res-auto"Android:id="@+id/pull_refresh_list"Android:layout_width="fill_parent"Android:layout_height="fill_parent"Android:dividerheight="4DP"Android:fadingedge="None"android:fastscrollenabled="false"android:footerdividersenabled="false"android:headerdividersenabled="false"Android:smoothscrollbar="true"Ptr:ptrmode="both"/></linearlayout>

Then create the Mainactivity.java

Package Com.pulltorefresh;import java.util.arrays;import java.util.linkedlist;import android.app.Activity; Import Android.os.asynctask;import Android.os.bundle;import Android.widget.arrayadapter;import Android.widget.listview;import Android.widget.toast;import com.handmark.pulltorefresh.library.PullToRefreshBase; Import Com.handmark.pulltorefresh.library.pulltorefreshbase.onrefreshlistener2;import Com.handmark.pulltorefresh.library.pulltorefreshbase.state;import Com.handmark.pulltorefresh.library.pulltorefreshlistview;import Com.handmark.pulltorefresh.library.extras.SoundPullEventListener; Public classMainactivity extends Activity {StaticFinalintMenu_manual_refresh =0; StaticFinalintMenu_disable_scroll =1; StaticFinalintMenu_set_mode =2; StaticFinalintMenu_demo =3; PrivateLinkedlist<string>Mlistitems; PrivatePulltorefreshlistview Mpullrefreshlistview; PrivateArrayadapter<string>Madapter; @Overrideprotected voidonCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);        Setcontentview (R.layout.main); Mpullrefreshlistview=(Pulltorefreshlistview) Findviewbyid (r.id.pull_refresh_list); /** * Implement Interface onrefreshlistener2<listview> so as to monitor scroll bar to top and bottom*/Mpullrefreshlistview.setonrefreshlistener (NewOnrefreshlistener2<listview>() {@Override Public voidOnpulldowntorefresh (pulltorefreshbase<listview>Refreshview) {Toast.maketext (mainactivity). This,"Onpulldowntorefresh", Toast.length_short). Show (); Newgetdatatask (). Execute (); } @Override Public voidOnpulluptorefresh (pulltorefreshbase<listview>Refreshview) {Toast.maketext (mainactivity). This,"Onpulluptorefresh", Toast.length_short). Show (); Newgetdatatask (). Execute ();            }        }); ListView Actuallistview=Mpullrefreshlistview.getrefreshableview (); //Need to use the Actual ListView when registering for Context MenuRegisterforcontextmenu (Actuallistview); Mlistitems=NewLinkedlist<string>();        Mlistitems.addall (Arrays.aslist (mstrings)); Madapter=NewArrayadapter<string> ( This, Android.        R.layout.simple_list_item_1, Mlistitems); /** * Add sound Event Listener*/                /** * Set the ringtone (optional) for pull-down refresh and pull-up loading*/Soundpulleventlistener<ListView> SoundListener =NewSoundpulleventlistener<listview> ( This);        Soundlistener.addsoundevent (State.pull_to_refresh, r.raw.pull_event);        Soundlistener.addsoundevent (State.reset, R.raw.reset_sound);        Soundlistener.addsoundevent (state.refreshing, R.raw.refreshing_sound);        Mpullrefreshlistview.setonpulleventlistener (SoundListener); //You can also just use Setlistadapter (madapter) or//Mpullrefreshlistview.setadapter (madapter)Actuallistview.setadapter (Madapter); }    //asynchronous request class for simulating Network load data//    Private classGetdatatask extends Asynctask<void, Void, string[]> {        //Child Threads Request Data@OverrideprotectedString[] Doinbackground (Void ...params) {            //simulates a background job.            Try{Thread.Sleep (Ten); } Catch(Interruptedexception e) {}returnmstrings; }        //main thread Update UI@Overrideprotected voidOnPostExecute (string[] result) {//add a row of data to the Refreshlistview Item and refresh the listview//mlistitems.addlast ("Added after Refresh ...");Mlistitems.addfirst ("Added after refresh ...");            Madapter.notifydatasetchanged (); //Notify Refreshlistview We have completed the update//Call Onrefreshcomplete when the list has been refreshed.Mpullrefreshlistview.onrefreshcomplete ();        Super.onpostexecute (result); }    }                //Data Source    PrivateString[] Mstrings = {"Abbaye de Belloc","Abbaye du Mont des Cats","Abertam","abondance","Ackawi",            "Acorn","Adelost","affidelice au Chablis","Afuega ' L Pitu","Airag","Airedale","Aisy Cendre",            "Allgauer Emmentaler","Abbaye de Belloc","Abbaye du Mont des Cats","Abertam","abondance","Ackawi",            "Acorn","Adelost","affidelice au Chablis","Afuega ' L Pitu","Airag","Airedale","Aisy Cendre",            "Allgauer Emmentaler" };}

Now that the code is complete, let's test it.

The use of open source project Pulltorefresh for Android Learning