Real-time data analysis of the Android service delivery to activity _android

This example describes the way in which the Android service delivers data to the activity in real time. Share to everyone for your reference. Specifically as follows:

Here is a case where the requirements are as follows:

Create a thread in the service component that is used to produce numeric values, automatically add 1 every 1 seconds, and then display the updated values in real time on the interface.

The steps are as follows:

1, a new Android Project project, named Demo.

2, a new service class, used for real-time production of numerical values for the interface real-time display.

 package com.ljq.activity; import android.app.Service; import android.content.Intent;
Import Android.os.IBinder;
Import Android.util.Log;
 public class Countservice extends Service {private int count = 0;
 Private Boolean threaddisable=false;
 @Override public void OnCreate () {super.oncreate ();
   New Thread (New Runnable () {@Override public void run () {while (!threaddisable) {try {thread.sleep (1000);
   catch (Interruptedexception e) {e.printstacktrace ();
   } count++;
   LOG.V ("Countservice", "Count is" + count);
   Send broadcast Intent intent=new Intent ();
   Intent.putextra ("Count", count);
   Intent.setaction ("Com.ljq.activity.CountService");
  Sendbroadcast (Intent);
 }}). Start ();
 @Override public IBinder onbind (Intent Intent) {return null;
 @Override public void OnDestroy () {Super.ondestroy ();
 count=0;
 Threaddisable = true;
 LOG.V ("Countservice", "on Destroy"); }
}

3, create a new activity class, display data.

Package com.ljq.activity;
Import android.app.Activity;
Import Android.content.BroadcastReceiver;
Import Android.content.Context;
Import android.content.Intent;
Import Android.content.IntentFilter;
Import Android.os.Bundle;
Import Android.view.View;
Import Android.widget.Button;
Import Android.widget.EditText;
 public class Mainactivity extends activity {private EditText edittext=null;
  Private Myreceiver Receiver=null;
    @Override public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
    Setcontentview (R.layout.main);
    edittext= (EditText) Findviewbyid (R.id.edittext);
 Start Service StartService (New Intent (Mainactivity.this, Countservice.class));
 Registered broadcast receiver Receiver=new Myreceiver ();
 Intentfilter filter=new Intentfilter ();
 Filter.addaction ("Com.ljq.activity.CountService");
  MainActivity.this.registerReceiver (Receiver,filter); @Override protected void OnDestroy () {//End service StopService (new Intent mainactivity.this, COUNTSERVICE.CLASS)); 
 Super.ondestroy (); /** * GET Broadcast data * * @author jiqinlin * */public class Myreceiver extends Broadcastreceiver {@Overr
   IDE public void OnReceive (context context, Intent Intent) {Bundle bundle=intent.getextras ();
   int Count=bundle.getint ("count");  
   Edittext.settext (count+ ""); }
  }
}

4. Main.xml Layout file

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android=
"http://schemas.android.com/apk/" Res/android "
 android:orientation=" vertical "
 android:layout_width=" fill_parent "
 android:layout_" height= "Fill_parent" >
  <edittext android:layout_width= "fill_parent" android:layout_height= "WRAP_"
    Content "
    android:cursorvisible=" false "
    android:editable=" false "
    android:id=" @+id/edittext "/>
</LinearLayout>

5. List Documents

<?xml version= "1.0" encoding= "Utf-8"?> <manifest xmlns:android=
"http://schemas.android.com/apk/res/" Android "
   package=" com.ljq.activity "
   android:versioncode=" 1 "
   android:versionname=" 1.0 ">
  < Application android:icon= "@drawable/icon" android:label= "@string/app_name" > <activity android:name=
    ". Mainactivity "
         android:label=" @string/app_name ">
      <intent-filter>
        <action android:name=" Android.intent.action.MAIN "/>
        <category android:name=" Android.intent.category.LAUNCHER "/>"
      </intent-filter>
    </activity>
 <service android:name = ". Countservice "/>
  </application>
  <uses-sdk android:minsdkversion=" 7 "/>
</ Manifest>

The effect is as follows:

I hope this article will help you with your Android program.