绑定服务 服务中通过定义Binder对象的子类让这个子类成为桥梁 在onBind（）中返回子类对象
这样就可以在activity中调用这个子类的方法
在Activity中通过ServiceConnection获取这个对象并向下转型为该子类对象 y与Activity绑定的服务当Activity结束的时候服务也会跟着结束
timer.cancel()会结束timerTask中的所有任务
NotifyManager.cancel(2) 2是对应的通知的id 会结束对应的通知
1 import android.app.Activity;
2 import android.content.ComponentName;
3 import android.content.Intent;
4 import android.content.ServiceConnection;
5 import android.os.Bundle;
6 import android.os.IBinder;
7 import android.view.View;
8
9 import com.qf.service03_bindservice.TimerService.TimerBinder;
10
11 public class MainActivity extends Activity {
12
13 //澹版槑Binder瀛愮被瀵硅薄
14 TimerBinder timerBinder;
15
16 //3. 瀹炰緥鍖朣erviceConnection鎺ュ彛锛堢粦瀹氭湇鍔＄粍浠舵椂浣跨敤鐨勫洖璋冩帴鍙ｏ級
17 ServiceConnection conn=new ServiceConnection(){
18 @Override
19 public void onServiceConnected(ComponentName name, IBinder service) {
20 // TODO 缁戝畾鎴愬姛鐨勬柟娉?
21 timerBinder=(TimerBinder) service;
22 }
23
24 @Override
25 public void onServiceDisconnected(ComponentName name) {
26 // TODO 涓庣粦瀹氭湇鍔＄粍浠舵柇寮?繛鎺ワ紙鍙戠敓鐨勬椂鏈猴細鐢变簬绯荤粺鍘熷洜閫犳垚浜嗘湇鍔＄粍浠跺仠姝㈡垨閿?瘉锛? timerBinder=null;
27 }
28 };
29
30 @Override
31 protected void onCreate(Bundle savedInstanceState) {
32 super.onCreate(savedInstanceState);
33 setContentView(R.layout.activity_main);
34 }
35
36 public void bindService(View v) {
37 //缁戝畾鏈嶅姟缁勪欢
38 bindService(new Intent(getApplicationContext(),TimerService.class),
39 conn, BIND_AUTO_CREATE);
40
41 //BIND_AUTO_CREATE鏍囪瘑琛ㄧず锛氱粦瀹氱殑鏈嶅姟缁勪欢濡傛灉涓嶅瓨锛屽垯浼氳嚜鍔ㄥ垱寤猴紝
42 //娉細鐢眀indService鏂瑰紡鍚姩鐨凷ervice锛屽叾鐢熷懡鍛ㄦ湡浼氬彈鍒扮粦瀹氱粍浠剁殑褰卞搷锛屽嵆褰撶粦瀹氱粍浠禔ctivity閿?瘉鏃讹紝Service涔熶細鍋滄
43 }
44
45 public void unbindService(View v) {
46 unbindService(conn); //瑙ｉ櫎缁戝畾
47 }
48
49 public void startTime(View v) {
50 if(timerBinder!=null){
51 timerBinder.start();
52 }
53 }
54
55 public void stopTime(View v) {
56 if(timerBinder!=null){
57 timerBinder.stop();
58 }
59 }
60
61 }
MainActivity.java
1 import java.util.Timer;
2 import java.util.TimerTask;
3
4 import android.app.Notification;
5 import android.app.NotificationManager;
6 import android.app.PendingIntent;
7 import android.app.Service;
8 import android.content.Intent;
9 import android.os.Binder;
10 import android.os.IBinder;
11 import android.support.v4.app.NotificationCompat;
12 import android.util.Log;
13
14 public class TimerService extends Service {
15
16 private Timer timer; //瀹氭椂鍣?
17 private NotificationManager notifyMgr;
18 @Override
19 public void onCreate() {
20 super.onCreate();
21 Log.i("debug", "--onCreate--");
22
23 timer=new Timer();
24
25 notifyMgr=(NotificationManager) getSystemService(NOTIFICATION_SERVICE);
26 }
27
28 @Override
29 public IBinder onBind(Intent intent) {
30 Log.i("debug", "--onBind--");
31 return new TimerBinder();//2. 瀹炰緥鍖朆inder鐨勫瓙绫伙紝骞惰繑鍥?
32 }
33
34 @Override
35 public boolean onUnbind(Intent intent) {
36 Log.i("debug", "--onUnbind--");
37 return super.onUnbind(intent);
38 }
39
40 @Override
41 public void onDestroy() {
42 Log.i("debug", "--onDestroy--");
43 super.onDestroy();
44 }
45
46 //1. 澹版槑Binder绫荤殑瀛愮被锛岀敤浜嶴ervice涓庣粦瀹氱殑Activity鐨勭粍浠惰繘琛岄?淇?
47 public class TimerBinder extends Binder{
48 public void start(){
49 Log.i("debug", "----start---");
50
51 //閫氳繃瀹氭椂鍣紝鏉ュ畨鎺掓椂闂磋鍒?
52 timer.schedule(new TimerTask(){
53 @Override
54 public void run() {
55 // TODO 鍦ㄦ寚瀹氱殑鏃堕棿鎵ц鐨勪换鍔?
56 NotificationCompat.Builder builder=
57 new NotificationCompat.Builder(getApplicationContext());
58 builder.setSmallIcon(android.R.drawable.ic_menu_today)
59 .setContentTitle("鎻愰啋")
60 .setContentText("鏃堕棿浜嗭紝璇ヨ捣搴婁簡....")
61 .setTicker("鏃堕棿浜嗭紝璇ヨ捣搴婁簡....")
62 .setDefaults(Notification.DEFAULT_SOUND)
63 .setOngoing(true);
64
65 notifyMgr.notify(2, builder.build());
66
67 }
68 },10*1000, 5*1000);
69
70 }
71
72 public void stop(){
73 Log.i("debug", "----stop---");
74 //鍏抽棴鎵?湁鐨勫畾鏃朵换鍔?
75 timer.cancel();
76
77 notifyMgr.cancel(2);
78 }
79 }
80
81 }
TimerService.java
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/btn1Id" 13 android:layout_width="wrap_content" 14 android:layout_height="wrap_content" 15 android:onClick="bindService" 16 android:text="绑定服务" /> 17 18 <Button 19 android:id="@+id/btn2Id" 20 android:layout_width="wrap_content" 21 android:layout_height="wrap_content" 22 android:layout_below="@id/btn1Id" 23 android:onClick="unbindService" 24 android:text="解除绑定" /> 25 26 <Button 27 android:id="@+id/btn3Id" 28 android:layout_width="wrap_content" 29 android:layout_height="wrap_content" 30 android:layout_below="@id/btn2Id" 31 android:onClick="startTime" 32 android:text="开启定时" /> 33 34 <Button 35 android:id="@+id/btn4Id" 36 android:layout_width="wrap_content" 37 android:layout_height="wrap_content" 38 android:layout_below="@id/btn3Id" 39 android:onClick="stopTime" 40 android:text="关闭定时" /> 41 42 </RelativeLayout>
activity_main.xml
时间： 2024-08-06 07:58:56