[英]searchBar method doesn't work with my NSMutableArray (Obj-C)
[英]Why doesn't the textfield code work for Xcode 8 Obj-C?
ViewController.h
@interface ViewController : UIViewController{
IBOutlet UITextField *Signup;
IBOutlet UITextField *Login;
}
@property(nonatomic, retain)IBOutlet UITextField *Signup;
@property(nonatomic, retain)IBOutlet UITextField *Login;
-(IBAction)TYPE:(id)sender;
ViewController.m
@synthesize Signup;
@synthesize Login;
-(IBAction)TYPE:(id)sender{
[Signup resignFirstResponder];
[Login resignFirstResponder];
}
在模拟器中,当我单击文本字段时,出现以下错误消息:
2017-04-14 18:43:52.616362 Prototype1 [3075:119579] [MC] systemgroup.com.apple.configurationprofiles路径的系统组容器为/ Users / robertstoley / Library / Developer / CoreSimulator / Devices / 09556F3B-A7BC-4DF2 -95EB-C3C13B6F39EA / data / Containers / Shared / SystemGroup / systemgroup.com.apple.configurationprofiles 2017-04-14 18:43:52.640402 Prototype1 [3075:119579] [MC]从私有有效用户设置读取。 2017-04-14 18:43:52.727 Prototype1 [3075:119579]找不到支持键盘iPhone-PortraitChoco-NumberPad的类型4的键盘。 使用1316927560_PortraitChoco_iPhone-Simple-Pad_Default 2017-04-14 18:43:53.607676 Prototype1 [3075:119579] [Common] _BSMachError:端口7403; (os / kern)无效功能(0x14)“无法插入COPY_SEND” 2017-04-14 18:43:53.608246 Prototype1 [3075:119579] [Common] _BSMachError:端口7403; (os / kern)无效名称(0xf)“无法取消分配发送权限”
我已经有两年没有使用Xcode了,但是同样的代码可以正常工作,为什么它不能用于Xcode 8,iOS 10?
Xcode 8的模拟器非常冗长。 这些消息并不意味着什么特别。
-顺便说一句-
您的代码以很老的风格编写,现在不再是最佳实践。 更好的是:
@interface ViewController : UIViewController
// It's no longer necessary to have your properties between { and }
@property (nonatomic, weak) IBOutlet UITextField *signup;
@property (nonatomic, weak) IBOutlet UITextField *login;
// IBOutlets should be weak, other properties should be weak or strong for objects, or assign for structs and values.
@end
@implementation ViewController
// You don't have to synthesize your properties anymore.
- (IBAction)type:(id)sender {
[self.signup resignFirstResponder];
[_login resignFirstResponder];
// but you do have to either use self. or underscore to refer to them.
}
@end
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