Service服务

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     xmlns:tools="http://schemas.android.com/tools"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6     android:paddingBottom="@dimen/activity_vertical_margin"
 7     android:paddingLeft="@dimen/activity_horizontal_margin"
 8     android:paddingRight="@dimen/activity_horizontal_margin"
 9     android:paddingTop="@dimen/activity_vertical_margin"
10     tools:context="com.hanqi.testservice.MainActivity"
11     android:orientation="vertical">
12 
13     <Button
14         android:layout_width="match_parent"
15         android:layout_height="wrap_content"
16         android:text="普通方式启动"
17         android:onClick="bt1_OnClick"/>
18 
19     <Button
20         android:layout_width="match_parent"
21         android:layout_height="wrap_content"
22         android:text="普通方式停止"
23         android:onClick="bt2_OnClick"/>
24 </LinearLayout>

 1 package com.hanqi.testservice;
 2 
 3 import android.content.Intent;
 4 import android.support.v7.app.AppCompatActivity;
 5 import android.os.Bundle;
 6 import android.view.View;
 7 import android.widget.Toast;
 8 
 9 public class MainActivity extends AppCompatActivity {
10 
11     @Override
12     protected void onCreate(Bundle savedInstanceState) {
13         super.onCreate(savedInstanceState);
14         setContentView(R.layout.activity_main);
15     }
16 
17     //普通方式启动
18     public void bt1_OnClick(View v)
19     {
20         //准备Intent:显式意图
21         Intent intent=new Intent(this,MyService.class);
22         //启动MyService
23         startService(intent);
24 
25         Toast.makeText(MainActivity.this, "MyService已启动", Toast.LENGTH_SHORT).show();
26 
27 
28     }
29 
30     //普通方式停止
31     public void bt2_OnClick(View v)
32     {
33         //准备Intent:显式意图
34         Intent intent=new Intent(this,MyService.class);
35         //启动MyService
36         stopService(intent);
37 
38         Toast.makeText(MainActivity.this, "MyService已停止", Toast.LENGTH_SHORT).show();
39 
40 
41     }
42 }

 1 package com.hanqi.testservice;
 2 
 3 import android.app.Service;
 4 import android.content.Intent;
 5 import android.os.IBinder;
 6 import android.util.Log;
 7 
 8 public class MyService extends Service {
 9     public MyService() {
10 
11         Log.e("TAG","MyService被构造");
12     }
13 
14 
15     //回调方法
16     //绑定
17     @Override
18     public IBinder onBind(Intent intent) {
19         // TODO: Return the communication channel to the service.
20         throw new UnsupportedOperationException("Not yet implemented");
21     }
22 }