Android 學習之 開源項目PullToRefresh的使用

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首先 下載 Android-PullToRefresh-master

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

下載之後將其解壓

如今  我們用eclipse 建立一個項目取名PullToRefresh

將上面的library 引入我們的項目

引入成功之後開啟項目的project.properties檔案我們能夠看到

android.library.reference.1=../Android-PullToRefresh-master/library

這樣就表示能夠引用成功了

我們在res/layout建立 布局檔案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"  為我們要使用PullToRefresh 裡面一些屬性須要引的命名空間 -->      <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>

接著建立 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 class MainActivity extends Activity {static final int MENU_MANUAL_REFRESH = 0;static final int MENU_DISABLE_SCROLL = 1;static final int MENU_SET_MODE = 2;static final int MENU_DEMO = 3;private LinkedList<String> mListItems;private PullToRefreshListView mPullRefreshListView;private ArrayAdapter<String> mAdapter;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);mPullRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_refresh_list);/** * 實現 介面  OnRefreshListener2<ListView>  以便與監聽  滾動欄到頂部和究竟部 */mPullRefreshListView.setOnRefreshListener(new OnRefreshListener2<ListView>() {@Overridepublic void onPullDownToRefresh( PullToRefreshBase<ListView> refreshView) {Toast.makeText(MainActivity.this, "onPullDownToRefresh", Toast.LENGTH_SHORT).show();new GetDataTask().execute();}@Overridepublic void onPullUpToRefresh( PullToRefreshBase<ListView> refreshView) {Toast.makeText(MainActivity.this, "onPullUpToRefresh", Toast.LENGTH_SHORT).show();new GetDataTask().execute();}});ListView actualListView = mPullRefreshListView.getRefreshableView();// Need to use the Actual ListView when registering for Context MenuregisterForContextMenu(actualListView);mListItems = new LinkedList<String>();mListItems.addAll(Arrays.asList(mStrings));mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mListItems);/** * Add Sound Event Listener *//** *   設定下拉重新整理和上拉載入時的 鈴聲（可有可無） */SoundPullEventListener<ListView> soundListener = new SoundPullEventListener<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);}//類比網路載入資料的   非同步請求類//private class GetDataTask extends AsyncTask<Void, Void, String[]> {//子線程請求資料@Overrideprotected String[] doInBackground(Void... params) {// Simulates a background job.try {Thread.sleep(10);} catch (InterruptedException e) {}return mStrings;}//主線程更新UI@Overrideprotected void onPostExecute(String[] result) {//向RefreshListView Item 加入一行資料  並重新整理ListView//mListItems.addLast("Added after refresh...");mListItems.addFirst("Added after refresh...");mAdapter.notifyDataSetChanged();//通知RefreshListView 我們已經更新完畢// Call onRefreshComplete when the list has been refreshed.mPullRefreshListView.onRefreshComplete();super.onPostExecute(result);}}//資料來源private String[] 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" };}

眼下編碼已經完畢  我們測試一下

                      

到此我們學習完畢

Android 學習之 開源項目PullToRefresh的使用