我有这个 .h 代码:
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
@property (strong, nonatomic) IBOutlet UITextField *fieldEmail;
@property (strong, nonatomic) IBOutlet UITextField *fieldPassword;
@property (strong, nonatomic) IBOutlet UILabel *titleLogin;
- (IBAction)buttonRegister;
- (IBAction)buttonLogin;
- (IBAction)loginFacebook;
- (IBAction)loginTwitter;
@end
这是我的 .m 代码:
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad
{
[_fieldEmail setFont:[UIFont fontWithName"ABeeZee-Regular" size:14]];
[_titleLogin setFont:[UIFont fontWithName"Raleway-ExtraLight" size:28]];
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)buttonRegister {
}
- (IBAction)buttonLogin {
}
- (IBAction)loginFacebook {
}
- (IBAction)loginTwitter {
}
@end
现在,我要做的是在这两个文本字段的左侧和右侧添加填充: fieldEmail 和 fieldPassword 所以它有一些空间,因为我放了一个图像作为两个文本字段的背景。
我尝试在 - (void)viewDidLoad 下的 .m 文件中添加此代码:
UIView *fieldEmail = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
[UITextField setLeftViewMode:UITextFieldViewModeAlways];
[UITextField setLeftView:fieldEmail];
但是我的 XCode 给了我这个错误信息:
no known class method for selector 'setLeftViewMode'
no known class method for selector 'setLeftView'
顺便说一句,我使用的是 XCode 4.6.3。这个版本是否有特殊代码可以在文本字段上添加填充?谢谢。
Best Answer-推荐答案 strong>
leftViewMode 和 leftView 是 UITextField 的属性,不是类方法。您需要将它们分配给实例。
yourTextField.leftViewMode = UITextFieldViewModeAlways;
yourTextField.leftView = fieldEmail;
关于ios - XCode : How to Add Left and Right Padding on Text Field?,我们在Stack Overflow上找到一个类似的问题:
https://stackoverflow.com/questions/18682390/
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