android之service

MainActivity.Java

 1 package com.example.test;
 2 
 3 import android.app.Activity;
 4 import android.content.Intent;
 5 import android.os.Bundle;
 6 import android.util.Log;
 7 import android.view.View;
 8 import android.view.View.OnClickListener;
 9 import android.widget.Button;
10 
11 public class MainActivity extends Activity implements OnClickListener{
12 
13     private static final String TAG = "ServicesDemo";
14       Button buttonStart, buttonStop;
15 
16       @Override
17       public void onCreate(Bundle savedInstanceState) {
18         super.onCreate(savedInstanceState);
19         setContentView(R.layout.activity_main);
20 
21         buttonStart = (Button) findViewById(R.id.buttonStart);
22         buttonStop = (Button) findViewById(R.id.buttonStop);
23 
24         buttonStart.setOnClickListener(this);
25         buttonStop.setOnClickListener(this);
26       }
27       
28       public void onClick(View src) {
29         switch (src.getId()) {
30         case R.id.buttonStart:
31           Log.d(TAG, "onClick: starting srvice");
32           startService(new Intent(this, MyService.class));
33           break;
34         case R.id.buttonStop:
35           Log.d(TAG, "onClick: stopping srvice");
36           stopService(new Intent(this, MyService.class));
37           break;
38         }
39       }
40     }

MyService.Java

 1 package com.example.test;
 2 
 3 import android.app.Service;
 4 import android.content.Intent;
 5 import android.media.MediaPlayer;
 6 import android.os.IBinder;
 7 import android.util.Log;
 8 import android.widget.Toast;
 9 
10 public class MyService extends Service {
11         private static final String TAG = "MyService";
12         MediaPlayer player;
13        
14         @Override
15         public IBinder onBind(Intent intent) {
16                 return null;
17         }
18        
19         @Override
20         public void onCreate() {
21                 Toast.makeText(this, "My Service Created", Toast.LENGTH_LONG).show();
22                 Log.d(TAG, "onCreate");
23         }
24 
25         @Override
26         public void onDestroy() {
27                 Toast.makeText(this, "My Service Stopped", Toast.LENGTH_LONG).show();
28                 Log.d(TAG, "onDestroy");
29         }
30        
31         @Override
32         public void onStart(Intent intent, int startid) {
33                 Toast.makeText(this, "My Service Started", Toast.LENGTH_LONG).show();
34                 Log.d(TAG, "onStart");
35         }
36 }

activity_main.xml

 1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:paddingBottom="@dimen/activity_vertical_margin"
 6     android:paddingLeft="@dimen/activity_horizontal_margin"
 7     android:paddingRight="@dimen/activity_horizontal_margin"
 8     android:paddingTop="@dimen/activity_vertical_margin"
 9     tools:context=".MainActivity" >
10 
11     <Button
12         android:id="@+id/buttonStart"
13         android:layout_width="wrap_content"
14         android:layout_height="wrap_content"
15         android:layout_alignLeft="@+id/buttonStop"
16         android:layout_alignParentTop="true"
17         android:layout_marginTop="74dp"
18         android:text="开始" />
19 
20     <Button
21         android:id="@+id/buttonStop"
22         android:layout_width="wrap_content"
23         android:layout_height="wrap_content"
24         android:layout_alignParentBottom="true"
25         android:layout_centerHorizontal="true"
26         android:layout_marginBottom="122dp"
27         android:text="结束" />
28 
29 </RelativeLayout>

AndroidManifest.xml，添加

1 <service android:enabled="true" android:name=".MyService" />

 

posted @ 2013-05-25 12:04  自由出土文物  阅读(162)  评论(0)  编辑  收藏  举报