Android: App with services keeps showing up in Overview Screen after calling finish() and System.exit(0)

问题

The App has several running services in the background. They run before and I want them to continue running even after the App closes.

After I call from Activity:

finish();
System.exit(0);

The App removes from foreground, but in the Overview Screen (long menu btn press) the App still appears. And it's always with same behaviour:

• First click on the App to open: The Overview Screen closes and nothing happens.
• Second click on the App to open: The Overview Screen closes and the App come back to the last point it works OK before calling finish() etc.

Why is it happens and how can I properly close the App (keeping the background services still running)?

EDIT: It seems something more general: Android: Behaviour of App in Overview Screen after calling finish()

来源：https://stackoverflow.com/questions/32606559/android-app-with-services-keeps-showing-up-in-overview-screen-after-calling-fin