这个库的下载地址:https://github.com/hackiftekhar/IQKeyboardManager
键盘的收起用到了第三方的库IQKeyBoardManager,你在appDelegate中的
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
写入
/****************键盘收起**********************/
IQKeyboardManager *manager = [IQKeyboardManager sharedManager];
manager.enable = YES;
manager.shouldResignOnTouchOutside = YES;
manager.shouldToolbarUsesTextFieldTintColor = YES;
manager.enableAutoToolbar = NO;
就可以在整个应用中点击空白处让键盘收起。