Android-Start service and pass data

Following previous article: http://blog.csdn.net/gaopeng0071/article/details/45153495

This article primarily records activity delivery data to the service.
The source code and the previous article is basically consistent, but in the jump process to increase the transfer of parameters.

Let's look at the effect first.
1.


2, through the above, you can see the activity page value changes, the corresponding background service output value also changed.
3, the core code is as follows, look at the code of 38 lines, we used to learn only, using intent as a carrier, loading the activity page data.

 PackageCom.example.connectservice;ImportAndroid.os.Bundle;Importandroid.app.Activity;ImportAndroid.content.Intent;ImportAndroid.view.Menu;ImportAndroid.view.View;ImportAndroid.view.View.OnClickListener;ImportAndroid.widget.EditText; Public  class mainactivity extends Activity implements Onclicklistener  {    PrivateEditText edit;@Override    protected void onCreate(Bundle savedinstancestate) {Super. OnCreate (Savedinstancestate);        Setcontentview (R.layout.activity_main); Findviewbyid (R.id.startservice). Setonclicklistener ( This); Findviewbyid (R.id.stopservice). Setonclicklistener ( This);    Edit = (EditText) Findviewbyid (R.ID.EDITTEXT1); }@Override     Public Boolean Oncreateoptionsmenu(Menu menu) {//inflate the menu; This adds items to the action bar if it is present.Getmenuinflater (). Inflate (R.menu.main, menu);return true; }@Override     Public void OnClick(View v) {Switch(V.getid ()) { CaseR.id.startservice:intent i =NewIntent ( This, Myservice.class); I.putextra ("Data", Edit.gettext (). toString ()); StartService (i); Break; CaseR.id.stopservice:stopservice (NewIntent ( This, Myservice.class)); Break; }    }}

4, the service code is as follows, see the Code of 21 lines, we in the Onstartcommand method through the intent parameter to get the value of activity passed over.

 PackageCom.example.connectservice;ImportAndroid.app.Service;ImportAndroid.content.Intent;ImportAndroid.os.IBinder;ImportAndroid.widget.EditText; Public  class myservice extends Service {String data;Booleanrunning =false;@Override     PublicIBinderOnbind(Intent Intent) {//TODO auto-generated method stub        return NULL; }@Override     Public int Onstartcommand(Intent Intent,intFlagsintStartid) {data = Intent.getstringextra ("Data");return Super. Onstartcommand (Intent, flags, Startid); }@Override     Public void onCreate() {Super. OnCreate (); running =true;NewThread () { Public void Run() { while(running) {System.out.println ("Data obtained in service:"+ data);Try{Thread.Sleep ( +); }Catch(Interruptedexception e) {//TODO auto-generated catch blockE.printstacktrace ();        }                }            };    }.start (); }@Override     Public void OnDestroy() {Super. OnDestroy (); running =false; }}

Other code

<LinearLayout 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"    Android:paddingbottom="@dimen/activity_vertical_margin"    Android:paddingleft="@dimen/activity_horizontal_margin"    Android:paddingright="@dimen/activity_horizontal_margin"    Android:paddingtop="@dimen/activity_vertical_margin"    android:orientation="Vertical"    Tools:context=". Mainactivity ">    <EditTextandroid:id="@+id/edittext1"android:layout_width="Match _parent "android:layout_height=" Wrap_content "android:ems=" Ten " >                                         <requestfocus />    </EditText>    <button  android:id  = "@+id/startservice"  android:layout_width
      = "wrap_content"  android:layout_height  =         "wrap_content"  android:text  = "StartService" />     <buttonandroid:id="@+id/stopservice"android:layout_width="Wrap_ Content "android:layout_height="wrap_content "android:text=" StopService " />                                </linearlayout>

<?xml version= "1.0" encoding= "Utf-8"?><manifest xmlns:android="Http://schemas.android.com/apk/res/android"  package ="Com.example.connectservice"android:versioncode="1"android: Versionname="1.0" >                <uses-sdkandroid:minsdkversion="8"android:targetsdkversion ="/>"                     <applicationandroid:allowbackup="true"android:icon="@drawable/ Ic_launcher "android:label=" @string/app_name "android:theme=" @style/apptheme " >                                        <activityandroid: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>        <serviceandroid:name=". MyService "android:enabled=" true "android:exported=" true ">                                              </Service>    </Application></manifest>

Android-Start service and pass data