库的下载地址：https://github.com/hackiftekhar/IQKeyboardManager
第一步：下载下来
第二步：拖入 IQKeyBoardManager文件进项目
第三步：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { IQKeyboardManager *manager = [IQKeyboardManager sharedManager]; manager.enable = YES; manager.shouldResignOnTouchOutside = YES; manager.shouldToolbarUsesTextFieldTintColor = YES; manager.enableAutoToolbar = NO; return YES;}
从此幸福一生，妈妈再也不用担心我的输入框被键盘挡住了
转载至：http://my.oschina.net/u/1418722/blog/384477?fromerr=PZKZQFPd收键盘神器-IQKeyboardManager，再也不用担心键盘挡住输入框了
原文：http://www.cnblogs.com/FloatSpider/p/5127388.html