Android下拉刷新控件

Android也将下拉刷新这个常用的方式写入自带的控件库了，android.support.v4.widget.SwipeRefreshLayout，刷新状态通过SwipeRefreshLayout.OnRefreshListener来监听，实例：

package me.waye.d;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.support.v4.widget.SwipeRefreshLayout;import android.view.View;import android.widget.Button;import android.widget.Toast;public class MainActivity extends Activity implements SwipeRefreshLayout.OnRefreshListener {    Button btn;    SwipeRefreshLayout swipeRefreshLayout;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.refresh);        btn = (Button) findViewById(R.id.btn);        btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                // Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.flip_in);                // Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.flip_out);//                Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.transition_out);//                swipeRefreshLayout.startAnimation(animation);                 startActivity(new Intent(MainActivity.this, SecondActivity.class));                 MainActivity.this.overridePendingTransition(R.anim.transition_in, R.anim.transition_out);            }        });        swipeRefreshLayout.setOnRefreshListener(this);        swipeRefreshLayout.setColorScheme(android.R.color.holo_blue_dark, android.R.color.holo_green_light, android.R.color.holo_orange_dark,                android.R.color.holo_red_dark);    }    @Override    public void onRefresh() {        try {            Thread.sleep(3000);            swipeRefreshLayout.setRefreshing(false);            Toast.makeText(MainActivity.this, "done", Toast.LENGTH_LONG).show();        } catch (InterruptedException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }}

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