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.

        }

    }

}