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ios uitExtFiElD

在iOS7以下我们可以通过UITextField的delegate方法来获取,如果直接输出textField.text会慢一拍。 - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string { NSString...

1. 试试这个UITextField *tfText = [[UITextField alloc] initWithFrame:CGRectMake(65, 200, 200, 30)]; tfText.backgroundColor = [UIColor colorWithRed:0.2 green:0.9 blue:0.5 alpha:0.3]; tfText.textAlignment = UITextAlignmentCenter; ...

//初始化textfield并设置位置及大小 UITextField *text = [[UITextField alloc]initWithFrame:CGRectMake(20, 20, 130, 30)]; //设置边框样式,只有设置了才会显示边框样式 text.borderStyle = UITextBorderStyleRoundedRect; typedef enum { UI...

//初始化textfield并设置位置及大小 UITextField *text = [[UITextField alloc]initWithFrame:CGRectMake(20, 20, 130, 30)]; //设置边框样式,只有设置了才会显示边框样式 text.borderStyle = UITextBorderStyleRoundedRect; typedef enum

UITextField *textfield常用的取消键盘方法. 1、在textfield所在的控制器中,实现UITextFieldDelegate的方法。 textfield.delegate = self; - (BOOL)textFieldShouldReturn:(UITextField *)textField { [textfield resignFirstResponder]; retur...

UITextField *tfText = [[UITextField alloc] initWithFrame:CGRectMake(65, 200, 200, 30)]; tfText.backgroundColor = [UIColor colorWithRed:0.2 green:0.9 blue:0.5 alpha:0.3]; tfText.textAlignment = UITextAlignmentCenter; // Border S...

.h 不用写任何东西。 .m 里面重写你要修改的方法,加入NSLog后再调用原有的。例如: - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField { NSLOG(@“something”); [super textFieldShouldBeginEditing:textField];}

@property (strong, nonatomic) UITextField *textField; //设置属性

先add背景图,再add uilabel,再add uitextfield 都add在self.view下面 userImage.userInteractionEnabled = YES; 满意采纳下

uitextfield.text == nil || [uitextfield.text isEqualToString:@""]

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