Android Open Source - ServicesTutorial Defer Work Handler

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License

The source code is released under:

Apache License

Java Source Code

package com.yanlu.android.services.app.utils;
/*from  w w  w.java  2s . c  o  m*/
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

/**
 * User: captain_miao
 * Date: 14-5-16
 * Time: ????9:18
 */
public class DeferWorkHandler extends Handler {

    public static final String tag = "DeferWorkHandler";
    //Keep track of how many times we sent the message
    private int count = 0;
    //A parent driver activity we can use
    //to inform of status.
    private Activity parentActivity = null;

    //During construction we take in the parent
    //driver activity.
    public DeferWorkHandler(Activity inParentActivity) {
        parentActivity = inParentActivity;
    }

    @Override
    public void handleMessage(Message msg) {
        String pm = new String(
                "message called:" + count + ":" + msg.getData().getString("message"));
        Log.d(tag, pm);
//        this.printMessage(pm);
        if (count > 5) {
            return;
        }
        count++;
        sendTestMessage(1);
    }

    public void sendTestMessage(long interval) {
        Message m = this.obtainMessage();
        prepareMessage(m);
        this.sendMessageDelayed(m, interval * 1000);
    }

    public void doDeferredWork() {
        count = 0;
        sendTestMessage(1);
    }

    public void prepareMessage(Message m) {
        Bundle b = new Bundle();
        b.putString("message", "Hello World");
        m.setData(b);
        return;
    }

    //This method just prints a message //in a text box in the parent activity. private void printMessage(String xyz)
    {
//    parentActivity.appendText(xyz); }

    }
}

Java Source Code List

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