public ComponentName startService(Intent service) { warnIfCallingFromSystemProcess(); return startServiceCommon(service, mUser); } private ComponentName startServiceCommon(Intent service, UserHandle user) { try { validateServiceIntent(service); service.prepareToLeaveProcess(); ComponentName cn = ActivityMa...
Constant to return from onStartCommand(Intent, int, int): if this service's process is killed while it is started (after returning from onStartCommand(Intent, int, int)), and there are no new start intents to deliver to it, then take the service out of the started state and don't ...
(1)Failed to start docker.service: Unit not found. sudosystemctl start docker Failed to start docker.service: Unit not found. 1. 2. docker.service启动失败:Unit not found (2)docker: command not found 问题原因都是上面框红框处哪里的问题。
这个整形可以有四个返回值:start_sticky、start_no_sticky、START_REDELIVER_INTENT、START_STICKY_COMPATIBILITY。 它们的含义分别是: 1):START_STICKY:如果service进程被kill掉,保留service的状态为开始状态,但不保留递送的intent对象。随后系统会尝试重新创建service,由于服务状态为开始状态,所以创建服务后一定会调用on...
intent, Android.App.StartCommandFlags flags, int startId); Parameters intent Intent The Intent supplied to android.content.Context#startService, as given. This may be null if the service is being restarted after its process has gone away, and it had previously returned anything except #START_...
startId Int32 A unique integer representing this specific request to start. Use with#stopSelfResult(int). Returns StartCommandResult The return value indicates what semantics the system should use for the service's current started state. It may be one of the constants associated with the#START_...
The system delivers configurations in the candidate database to a service. If the configurations take effect, the system adds them to the running database of the current system. During the configuration commitment stage, the system checks the configuration validity and displays messages when ...
startId Int32 A unique integer representing this specific request to start. Use with#stopSelfResult(int). Returns StartCommandResult The return value indicates what semantics the system should use for the service's current started state. It may be one of the constants associated with the#START_...
7、遇到的问题 (1)Failed to start docker.service: Unit not found. sudosystemctl start docker Failed to start docker.service: Unit not found. docker.service启动失败:Unit not found (2)docker: command not found 问题原因都是上面框红框处哪里的问题。
每次通过调用 startService 方法启动 Service 时,都会调用 onStartCommand 方法,当这个方法实现多线程时,每调用一次 onStartCommand 方法就会创建一个新线程,意味着将启动多个线程同步运行,在业务逻辑中就必须考虑多线程同步这种复杂机制。但多数应用中并不需要实现真正的多线程同步运行,只需要将不同的请求排队等候同一个...