startService()抛出java.lang.IllegalStateException [英] startService() throws java.lang.IllegalStateException

问题描述

从我的活动的onCreate()中

我正在尝试通过以下代码启动服务:

I am trying to start a service via following code:

Intent intent = new Intent();
intent.setClassName(SERVICE_PKG_NAME, SERVICE_NAME);
context.startService(intent); //context = MainActivity.this

但是，我收到以下异常:

However, I receive following exception:

java.lang.IllegalStateException:不允许启动服务意图(服务名称):应用程序在后台

java.lang.IllegalStateException: Not allowed to start service Intent (service-name) : app is in background

任何想法可能是什么原因?现在已经坚持了几个小时.

Any idea what could be reason for this? Stuck on it for few hours now.

推荐答案

对于需要从前台应用调用后台应用服务的情况，我们可以遵循以下顺序:

For cases involving need to invoke service of Background app from a foreground app, We can follow the sequence:

• 首先调用bindService()
• 由于绑定调用而在OnServiceConnected()之后
• 致电StartService().

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