android 下拉刷新菜单库 johannilsson/android-pulltorefresh

最新推荐文章于 2025-04-10 09:44:32 发布

李高钢

最新推荐文章于 2025-04-10 09:44:32 发布

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分类专栏： java 文章标签： android

本文链接：https://blog.youkuaiyun.com/ligaogang/article/details/45599451

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本文介绍了一个使用PullToRefreshListView实现下拉刷新功能的简单示例应用。通过MainActivity的源代码展示如何设置布局、初始化组件及监听刷新事件，并在刷新时通过异步任务更新列表数据。

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布局：

MainActivity.java

package com.example.pulltorefreshlistviewjike;

import java.util.ArrayList;
import java.util.List;

import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;

import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv=(PullToRefreshListView) findViewById(R.id.listView);
List<String> arr=new ArrayList<String>();
arr.add("hello,word");
arr.add("im coming");
adpter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,arr);
lv.setAdapter(adpter);
lv.setOnRefreshListener(new OnRefreshListener<ListView>(){

@Override
public void onRefresh(PullToRefreshBase<ListView> refreshView) {
// TODO Auto-generated method stub
new AsyncTask<Void,Void,Void>(){

@Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
try{
Thread.sleep(3000);
}catch(InterruptedException e){
e.printStackTrace();
}
return null;
}
protected void onPostExecute(Void result){
adpter.addAll("helo","大家好");
lv.onRefreshComplete();
};
}.execute();
}

});
}

private PullToRefreshListView lv;
private ArrayAdapter<String> adpter;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}

github托管地址：https://github.com/johannilsson/android-pulltorefresh