下拉刷新控件SwipeRefreshLayout

近期在学习android开发过程中，遇到了PullToRefresh控件，但是貌似很有没维护了吧，导入as中会出现问题。没有找到解决办法，只能用官方控件了。

Google提供了一个官方的下拉刷新控件SwipeRefreshLayout



几个常用的函数也很简单。

下面是我的一个例子：

XML：

<LinearLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"
android:orientation="vertical">

<android.support.v4.widget.SwipeRefreshLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/swiperefresh">

<ListView
android:id="@+id/lv"
android:layout_width="match_parent"
android:layout_height="match_parent">

</ListView>
</android.support.v4.widget.SwipeRefreshLayout>
</LinearLayout>

MainActivity:

package com.example.administrator.usingswiperefreshlayout;

import android.os.AsyncTask;

import android.support.v4.widget.SwipeRefreshLayout;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.os.Handler;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.Toast;

import java.util.ArrayList;

import java.util.List;

public class MainActivity extends AppCompatActivity {

private SwipeRefreshLayout swiperefresh;
private ArrayAdapter<String> adapter;
private ListView lv;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

//建立一个List
List<String> arr = new ArrayList();
arr.add("Hello");
arr.add("西瓜");
arr.add("Refresh");

swiperefresh = (SwipeRefreshLayout) findViewById(R.id.swiperefresh);
swiperefresh.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);//设置刷新动画的颜色
lv = (ListView) findViewById(R.id.lv);

//在listview中添加内容
adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,arr);
lv.setAdapter(adapter);

//刷新监听器
swiperefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
swiperefresh.setRefreshing(true);//开始刷新

//执行刷新后需要完成的操作
new Handler().postDelayed(new Runnable() {
@Override
public void run() {

adapter.addAll("加入","成功");//添加两个条目

//刷新完成
Toast.makeText(MainActivity.this,"刷新完成",Toast.LENGTH_SHORT).show();
swiperefresh.setRefreshing(false);//结束刷新
}
},4000);//刷新动画持续4秒

}

});
}

}

如果遇到报错 Android Error inflating class SwipeRefreshLayout

那么

You need to use a full package name for SwipeRefreshLayout:

android.support.v4.widget.SwipeRefreshLayout