从堆栈中删除应用程序时如何保持服务正常运行 [英] How to keep service alive when remove app from stack
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问题描述
我想使用Alarm Manager每分钟显示通知，我已经实现了下面的代码，它可以正常工作，但是问题是当我从堆栈中删除应用程序时服务未运行。
我想保持生命，我在onStartCommand中尝试了 START_STICKY ，还使用了 onTaskRemoved ，但这是相同的。
<我也尝试使用WakefulIntentService来实现，但是问题是相同的。我的代码如下。
在MainActivity中
Intent myIntent = new Intent（NotificationDemo.this，MyReceiver.class）;
myIntent.putExtra（ title， 2分钟）;
Random random = new Random（）;
int m = random.nextInt（9999-1000）+ 1000;
Log.d（ m :::通知中，m +）;
myIntent.putExtra（ id，m）;
endingIntent = PendingIntent.getBroadcast（NotificationDemo.this，m，myIntent，0）;
AlarmManager alarmManager =（AlarmManager）getSystemService（ALARM_SERVICE）;
// AlarmManager.setRepeating（AlarmManager.RTC，System.currentTimeMillis（），alarmManager.InteingIntent）;
alarmManager.setRepeating（AlarmManager.ELAPSED_REALTIME_WAKEUP，
SystemClock.elapsedRealtime（），
1 * 60 * 1000，
endingIntent）;
MyService
公共类MyAlarmService扩展服务{
private NotificationManager mManager;
@Override
public IBinder onBind（Intent arg0）{
// TODO自动生成的方法存根
返回null;
}
@Override
public void onCreate（）{
// TODO自动生成的方法存根
super.onCreate（）;
}
@Override
public int onStartCommand（Intent intent，int flags，int startId）{
字符串标题= intent.getStringExtra（ title ）;
int id = intent.getIntExtra（ id，0）;
mManager =（NotificationManager）this.getApplicationContext（）。getSystemService（this.getApplicationContext（）。NOTIFICATION_SERVICE）;
Intent intent1 = new Intent（this.getApplicationContext（），MainActivity.class）;
通知通知=新通知（R.mipmap.ic_launcher，标题，System.currentTimeMillis（））;
intent1.addFlags（Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP）;
Log.d（ id ::，id +）;
PendingIntentendingNotificationIntent = PendingIntent.getActivity（this.getApplicationContext（），id，intent1，PendingIntent.FLAG_UPDATE_CURRENT）;
notification.flags | = Notification.FLAG_AUTO_CANCEL;
// // notification.setLatestEventInfo（this.getApplicationContext（）， AlarmManagerDemo，这是一条测试消息！，endingNotificationIntent）;
NotificationCompat.Builder builder =新的NotificationCompat.Builder（MyAlarmService.this）;
通知= builder.setContentTitle（title）
.setContentText（ Hellooo ...）
.setTicker（ Good Evening ...）
。 setSmallIcon（android.R.drawable.ic_btn_speak_now）
.setVibrate（new long [] {1000，1000，1000，100}）
.setLights（5，5，5）
.setContentIntent （pendingNotificationIntent）.build（）;
mManager.notify（id，通知）;
startForeground（1337，通知）;
返回START_STICKY;
}
@Override
public void onDestroy（）{
// TODO自动生成的方法存根
super.onDestroy（）;
// sendBroadcast（new Intent（ IWillStartAuto））;
}
@Override
public void onTaskRemoved（Intent rootIntent）{
super.onTaskRemoved（rootIntent）;
// sendBroadcast（new Intent（ IWillStartAuto））;
// Intent intent = new Intent（getApplicationContext（），MyReceiver.class）;
// sendBroadcast（intent）;
}
}
这是我的接收者
公共类MyReceiver扩展了BroadcastReceiver {
@Override
public void onReceive（Context context，Intent intent）{
字符串标题= intent.getStringExtra（ title）;
int id = intent.getIntExtra（ id，0）;
Intent service1 = new Intent（context，MyAlarmService.class）;
service1.putExtra（ title，title）;
service1.putExtra（ id，id）;
context.startService（service1）;
}
}
在清单中
< receiver android：name =。MyReceiver>
<！-<意图过滤器>
< action android：name = IWillStartAuto />
< / intent-filter>-
<意图过滤器>
< action android：name = android.intent.action.BOOT_COMPLETED />
< / intent-filter>
< / receiver>
< service
android：name =。MyAlarmService
android：enabled = true
android：stopWithTask = false />
解决方案
您需要在前台启动服务。
您的服务OnCreate（）方法中缺少此内容。
startForeground（1337，notification）;
返回START_STICKY;
不要在活动或onDestroy（）方法的片段中停止服务。
I want to show notification every minute using Alarm Manager, I have implemented below code, it's working fine but the problem is when I remove app from stack the service is not running.
I want keep alive, I have tried START_STICKY in onStartCommand and also used onTaskRemoved but it's same.
I also tried to implement using WakefulIntentService but the problem is same. My code is below.
In MainActivity
Intent myIntent = new Intent(NotificationDemo.this, MyReceiver.class);
myIntent.putExtra("title", "2 minutes");
Random random = new Random();
int m = random.nextInt(9999 - 1000) + 1000;
Log.d("m::: In Notification", m + "");
myIntent.putExtra("id", m);
pendingIntent = PendingIntent.getBroadcast(NotificationDemo.this, m, myIntent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
// alarmManager.setRepeating(AlarmManager.RTC, System.currentTimeMillis(),alarmManager.Inte pendingIntent);
alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
SystemClock.elapsedRealtime(),
1 * 60 * 1000,
pendingIntent);
MyService
public class MyAlarmService extends Service {
private NotificationManager mManager;
@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
String title = intent.getStringExtra("title");
int id = intent.getIntExtra("id", 0);
mManager = (NotificationManager) this.getApplicationContext().getSystemService(this.getApplicationContext().NOTIFICATION_SERVICE);
Intent intent1 = new Intent(this.getApplicationContext(), MainActivity.class);
Notification notification = new Notification(R.mipmap.ic_launcher, title, System.currentTimeMillis());
intent1.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
Log.d("id::", id + "");
PendingIntent pendingNotificationIntent = PendingIntent.getActivity(this.getApplicationContext(), id, intent1, PendingIntent.FLAG_UPDATE_CURRENT);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
// notification.setLatestEventInfo(this.getApplicationContext(), "AlarmManagerDemo", "This is a test message!", pendingNotificationIntent);
NotificationCompat.Builder builder = new NotificationCompat.Builder(MyAlarmService.this);
notification = builder.setContentTitle(title)
.setContentText("Hellooo...")
.setTicker("Good Evening...")
.setSmallIcon(android.R.drawable.ic_btn_speak_now)
.setVibrate(new long[]{1000, 1000, 1000, 100})
.setLights(5, 5, 5)
.setContentIntent(pendingNotificationIntent).build();
mManager.notify(id, notification);
startForeground(1337, notification);
return START_STICKY;
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
// sendBroadcast(new Intent("IWillStartAuto"));
}
@Override
public void onTaskRemoved(Intent rootIntent) {
super.onTaskRemoved(rootIntent);
// sendBroadcast(new Intent("IWillStartAuto"));
// Intent intent = new Intent(getApplicationContext(),MyReceiver.class);
// sendBroadcast(intent);
}
}
and this is my receiver
public class MyReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String title = intent.getStringExtra("title");
int id = intent.getIntExtra("id", 0);
Intent service1 = new Intent(context, MyAlarmService.class);
service1.putExtra("title", title);
service1.putExtra("id", id);
context.startService(service1);
}
}
In Manifest
<receiver android:name=".MyReceiver">
<!--<intent-filter>
<action android:name="IWillStartAuto"/>
</intent-filter>-->
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<service
android:name=".MyAlarmService"
android:enabled="true"
android:stopWithTask="false" />
解决方案
You need to start your service in foreground.
You are missing something this in your service OnCreate() method.
startForeground(1337, notification);
return START_STICKY;
And don't stop your service in your activities or fragments onDestroy() methods.
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