Android之官方下拉刷新控件SwipeRefreshLayout

SwipeRefreshLayout 是在V4包里面,首先要先导入V4包,最新的V4包里面才有这控件

首先是布局

<android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/swipe_container"
android:layout_width="match_parent"
android:layout_height="match_parent" > <ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent" > <TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:gravity="center"
android:text="@string/hello_world" > </TextView>
</ScrollView> </android.support.v4.widget.SwipeRefreshLayout>

SwipeRefreshLayout 中嵌入一个可滑动的控件,可以是scrollview  也可以是listview  gridview

package com.example.swiperrefreshlayout;

import android.os.Bundle;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
import android.text.SpanWatcher;
import android.view.Menu;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.Interpolator;
import android.widget.TextView; @SuppressLint("NewApi")
public class MainActivity extends Activity { SwipeRefreshLayout swiper;
ObjectAnimator oa;
TextView text;
private Interpolator accelerator = new AccelerateInterpolator();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
swiper=(SwipeRefreshLayout) findViewById(R.id.swipe_container);
swiper.setOnRefreshListener(new listener());
text=(TextView) findViewById(R.id.text); //显示或隐藏刷新进度条
swiper.setRefreshing(false);
// 设置进度条的颜色主题,最多能设置四种
swiper.setColorScheme(android.R.color.holo_blue_bright,
android.R.color.holo_green_light,
android.R.color.holo_orange_light,
android.R.color.holo_red_light); oa=ObjectAnimator.ofFloat(swiper, "rotationY", 0f,-180f);
oa.setDuration(600);
oa.setRepeatCount(1);
oa.setRepeatMode(ObjectAnimator.REVERSE);
oa.setInterpolator(accelerator);
// Animation an=new Animation();
}
class listener implements OnRefreshListener{ @Override
public void onRefresh() {
// TODO Auto-generated method stub
oa.start(); if(swiper.isRefreshing()){
text.setText("正在刷新");
}else{
text.setText("停止刷新");
};
//swiper.
} }
}
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