Android 下拉刷新控件的使用

activity_main.xml

<RelativeLayout 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"
    tools:context="com.example.xiala.MainActivity" >

    <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:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="16dp"
                android:gravity="center"
                android:text="@string/hello_world" />
        </ScrollView>
    </android.support.v4.widget.SwipeRefreshLayout>

</RelativeLayout>

MainActivity.java

import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
import android.support.v7.app.ActionBarActivity;

public class MainActivity extends ActionBarActivity implements OnRefreshListener{
    private SwipeRefreshLayout swipeLayout;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        swipeLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_container);
        swipeLayout.setOnRefreshListener(this);
        swipeLayout.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);
    }

    public void onRefresh() {
        new Handler().postDelayed(new Runnable() {
            @Override public void run() {
                swipeLayout.setRefreshing(false);
            }
        }, 5000);
    }

}

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