SwipeRefreshLayout简单使用

import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
import android.widget.TextView;
import android.app.Activity;

public class SwipeRefreshActivity extends Activity implements OnRefreshListener{

private SwipeRefreshLayout swipeRefreshLayout;
private TextView dateTv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.refresh);
        dateTv = (TextView) findViewById(R.id.date);
        swipeRefreshLayout.setOnRefreshListener(this);
    }
@Override
public void onRefresh() {

swipeRefreshLayout.setRefreshing(true);
(new Handler()).postDelayed(new Runnable() {


@Override
public void run() {

swipeRefreshLayout.setRefreshing(false);
Date date = new Date(System.currentTimeMillis());
dateTv.setText(DateFormat.getDateTimeInstance().format(date));
}
}, 3000);
}
}

    <ScrollView
        android:layout_width=”match_parent”
        android:layout_height=”match_parent” >

        <LinearLayout
            android:layout_width=”match_parent”
            android:layout_height=”wrap_content”
            android:orientation=”vertical” >

            <TextView
                android:layout_width=”wrap_content”
                android:layout_height=”wrap_content”
                android:text=”下拉刷新以产生当前日期” />

            <TextView
                android:id=”@+id/date”
                android:layout_width=”wrap_content”
                android:layout_height=”wrap_content”
                android:text=”日期” />
        </LinearLayout>
    </ScrollView>

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