一个可下拉刷新与上拉加载更多的框架，可对ListView、GridView、WebView、ScrollView等几乎所有常用的View类型进行此操作，并且还提供了GIF动画的上拉与下拉头，也可自定义上拉头与下拉头。（本框架基于https://github.com/jingchenUSTC/PullToRefreshAndLoad , 特此感谢）
##效果图
##使用示例代码
布局文件
<com.jingchen.pulltorefresh.PullToRefreshLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/refresh_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFF" >
<com.jingchen.pulltorefresh.PullableListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#AAA"
android:dividerHeight="5dp" />
</com.jingchen.pulltorefresh.PullToRefreshLayout>
使用代码
package com.jingchen.pulltorefresh.activity;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import pl.droidsonroids.gif.GifDrawable;
import com.jingchen.pulltorefresh.MyAdapter;
import com.jingchen.pulltorefresh.MyPullListener;
import com.jingchen.pulltorefresh.PullToRefreshLayout;
import com.jingchen.pulltorefresh.R;
import android.app.Activity;
import android.content.res.Resources.NotFoundException;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
public class PullableGifActivity extends Activity
{
private ListView listView;
private PullToRefreshLayout ptrl;
private boolean isFirstIn=true;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_listview);
ptrl = ((PullToRefreshLayout) findViewById(R.id.refresh_view));
// 此处设置下拉刷新或上拉加载更多监听器
ptrl.setOnPullListener(new MyPullListener());
// 设置带gif动画的上拉头与下拉头
try
{
ptrl.setGifRefreshView(new GifDrawable(getResources(), R.drawable.anim));
ptrl.setGifLoadmoreView(new GifDrawable(getResources(), R.drawable.anim));
} catch (NotFoundException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
listView = (ListView) ptrl.getPullableView();
initListView();
}
@Override
public void onWindowFocusChanged(boolean hasFocus)
{
super.onWindowFocusChanged(hasFocus);
// 第一次进入自动刷新
if (isFirstIn)
{
ptrl.autoRefresh();
isFirstIn = false;
}
}
/**
* ListView初始化方法
*/
private void initListView()
{
List<String> items = new ArrayList<String>();
for (int i = 0; i < 30; i++)
{
items.add("这里是item " + i);
}
MyAdapter adapter = new MyAdapter(this, items);
listView.setAdapter(adapter);
listView.setOnItemLongClickListener(new OnItemLongClickListener()
{
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
int position, long id)
{
Toast.makeText(
PullableGifActivity.this,
"LongClick on "
+ parent.getAdapter().getItemId(position),
Toast.LENGTH_SHORT).show();
return true;
}
});
listView.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id)
{
Toast.makeText(PullableGifActivity.this,
" Click on " + parent.getAdapter().getItemId(position),
Toast.LENGTH_SHORT).show();
}
});
}
/**
* 下拉刷新与上拉加载更多监听器
*/
public class MyPullListener implements OnPullListener {
@Override
public void onRefresh(final PullToRefreshLayout pullToRefreshLayout) {
// 下拉刷新操作
new Handler() {
@Override
public void handleMessage(Message msg) {
// 千万别忘了告诉控件刷新完毕了哦！
pullToRefreshLayout.refreshFinish(PullToRefreshLayout.SUCCEED);
}
}.sendEmptyMessageDelayed(0, 5000);
}
@Override
public void onLoadMore(final PullToRefreshLayout pullToRefreshLayout) {
// 加载更多操作
new Handler() {
@Override
public void handleMessage(Message msg) {
// 千万别忘了告诉控件加载完毕了哦！
pullToRefreshLayout.loadmoreFinish(PullToRefreshLayout.SUCCEED);
}
}.sendEmptyMessageDelayed(0, 5000);
}
}
}