1.首先，使用Android本身自帶的listview控件
package com.example.androidlistview;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ListView;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
public class LoadMoreListView extends ListView implements OnScrollListener {
private int totalItem;
private int lastItem;
private boolean isLoading;
private OnLoadMore onLoadMore;
private LayoutInflater inflater;
private View footer;
public LoadMoreListView(Context context) {
super(context);
// TODO Auto-generated constructor stub
init(context);
}
public LoadMoreListView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
init(context);
}
public LoadMoreListView(Context context, AttributeSet attrs,
int defStyleAttr) {
super(context, attrs, defStyleAttr);
// TODO Auto-generated constructor stub
init(context);
}
private void init(Context context) {
// TODO Auto-generated method stub
inflater = LayoutInflater.from(context);
footer = inflater.inflate(R.layout.load_more_footer, null,false);
footer.setVisibility(View.GONE);
this.addFooterView(footer);
this.setOnScrollListener(this);
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
// TODO Auto-generated method stub
this.lastItem = firstVisibleItem + visibleItemCount;
this.totalItem = totalItemCount;
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
// TODO Auto-generated method stub
if(this.totalItem == lastItem && scrollState == SCROLL_STATE_IDLE){
Log.v("isLoading", "yes");
if (!isLoading) {
isLoading = true;
footer.setVisibility(View.VISIBLE);
onLoadMore.loadMore();
}
}
}
public void setLoadMoreListen(OnLoadMore onLoadMore){
this.onLoadMore = onLoadMore;
}
/**
* 加載完成調用此方法
*/
public void onLoadComplete(){
footer.setVisibility(View.GONE);
isLoading = false;
}
public interface OnLoadMore{
public void loadMore();
}
}
2.創建activity_main.xml文件
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="@dimen/activity_vertical_margin"
tools:context="com.example.androidlistview.MainActivity" >
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swip_index"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.example.androidlistview.LoadMoreListView
android:id="@+id/listView"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</com.example.androidlistview.LoadMoreListView>
</android.support.v4.widget.SwipeRefreshLayout>
</RelativeLayout>
3.MainActivity調用ListView
package com.example.androidlistview;
import java.util.ArrayList;
import com.example.androidlistview.LoadMoreListView.OnLoadMore;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.Toast;
public class MainActivity extends Activity implements OnLoadMore,
OnRefreshListener {
private LoadMoreListView listView;
private SwipeRefreshLayout swip;
private int page = 1;
ArrayList data1 = new ArrayList();
private ArrayAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initData(1);
}
private void initView() {
// TODO Auto-generated method stub
listView = (LoadMoreListView) findViewById(R.id.listView);
listView.setLoadMoreListen(this);
swip = (SwipeRefreshLayout) findViewById(R.id.swip_index);
swip.setOnRefreshListener(this);
swip.setColorSchemeResources(android.R.color.holo_blue_light,
android.R.color.holo_red_light,
android.R.color.holo_orange_light,
android.R.color.holo_green_light);
adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1,
data1);
}
/**
* 加載數據
*
* @param num
* 頁數
*/
private void initData(int num) {
// TODO Auto-generated method stub
if (num == 1) {
for (int i = 0; i < 10; i++) {
data1.add((i + 1) + "");
listView.setAdapter(adapter);
}
} else {
data1.add("新加的第" + (9 + num) + "個");
}
}
// 下拉刷新的方法
@Override
public void onRefresh() {
Toast.makeText(this, "開始刷新啦", Toast.LENGTH_SHORT).show();
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
if (swip.isShown()) {
swip.setRefreshing(false);
}
Toast.makeText(MainActivity.this, "刷新完成了", Toast.LENGTH_SHORT)
.show();
}
}, 3000);
}
// 加載更多的方法
@Override
public void loadMore() {
page++;
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
initData(page);
listView.onLoadComplete();
Toast.makeText(MainActivity.this, "加載完成", Toast.LENGTH_SHORT)
.show();
adapter.notifyDataSetChanged();
}
}, 3000);
}
}
4.load_more_footer.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:gravity="center"
android:orientation="vertical" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/load_animation" />
</LinearLayout>
5.創建load_animation.xml文件
<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:drawable="@drawable/loading"
android:duration="90"/>
<item
android:drawable="@drawable/loading1"
android:duration="90"/>
<item
android:drawable="@drawable/loading2"
android:duration="90"/>
</animation-list>