If you need a lock, keeping it simple, such as using a single lock for nearly everything, has its advantages.
如果您需要一个锁，那么保持其简单性(比如为几乎所有内容都使用惟一的锁)是有好处的。
A simple example application will help you understand how you can use the JLA to help find areas of lock contention.
一个简单的应用程序示例将帮助您了解如何使用JLA帮助查找锁争用的区域。
I don't always need to lock screen rotation, but I'd like to be able to turn it on and off with a simple flip.
我并不总是需要锁定屏幕翻转，不过我希望能够通过简单敲击就打开和关闭这项功能。
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