android使用finish()和System.exit()退出应用程序的理解
16lz
2021-01-23
this.finish() in Activity only stop and destroy this activity, application still staying background (check by hold HOME button)
I used:
System.exit(0);
but it still appear there!
That's how Android works. The user/developer is not given any way to actually exit the application. When you call 'finish', the application stack is just pushed to the background. It still exists in the memory. Android itself decides when to close the application(i.e. remove its instance from the memory) and generally this is done when your application becomes the oldest application which was not used for the longest time.
this.finish()主要是对Activity，当前的Activity结束了，但是整个Application还是在内存中运行，此时Application就成为了background进程，System.exit(0)是结束当前进程
更多相关文章
- Android中的进程生命周期
- Android跨进程bindService与callback
- Android的IPC机制和多进程开发模式
- Android进程与线程的概念
- IDA Pro 远程调试Android进程环境配置
- Android进程级别与如何防止服务进程被回收