目录背景一个简单的demo优化交互逻辑封装小结背景 说一千，道一万，程序是为用户服务的，所以在程序运行过程，与用户交互以获取用户的信息输入和决策确认，是无法避免的编程需要考虑和解决的需求。
I have one of my activities which I would like to prevent from rotating because I\'m starting an AsyncTask, and screen rotation makes it restart.
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