缓存设置页面

@interface ViewController ()<UITextFieldDelegate>

@property (weak, nonatomic) IBOutlet UITextField *myTextField;

@property (weak, nonatomic) IBOutlet UISwitch *mySwitch;

@property (weak, nonatomic) IBOutlet UISlider *mySlider;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    //添加UITextField的委托代理方法

    _myTextField.delegate=self;

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

//实现UITextField的委托代理方法

-(void)textFieldDidEndEditing:(UITextField *)textField{

    NSLog(@"字符串变为:%@",textField.text);

}

- (IBAction)myswitchAction:(UISwitch *)sender {

    NSLog(@"开关变为:%d",sender.isOn);

}

- (IBAction)mysliderAction:(UISlider *)sender {

    NSLog(@"滑块位置:%f",sender.value);

}

//点击任意空白处响应方法

-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{

    [self.view endEditing:YES];//隐藏键盘

}

不知道为什么一运行程序就崩掉 麻烦老师帮忙调试一下 谢谢