摘要：
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationWillResignActive:)name:UIApplicationWillResignActiveNotification object:nil]; //监听是否触发home键挂起程序. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidBecomeActive:)name:UIApplic... 阅读全文