子类UITextField默认情况下在开始时添加空格

Question

我想在UITextField的开头添加空格。我使用以下代码将我的UITextfield子类化。我不确定这里出了什么问题

- (CGRect)textRectForBounds:(CGRect)bounds {
return CGRectMake(bounds.origin.x + 15, bounds.origin.y + 15, bounds.size.width, bounds.size.height);
}

- (CGRect)editingRectForBounds:(CGRect)bounds {
return CGRectMake(bounds.origin.x + 15, bounds.origin.y + 15, bounds.size.width, bounds.size.height);
}

先谢谢

Answer 1

试试这个

UILabel * leftView = [[UILabel alloc] initWithFrame:CGRectMake(10,0,7,26)];
leftView.backgroundColor = [UIColor clearColor];


textField.leftView = leftView;

textField.leftViewMode = UITextFieldViewModeAlways;
textField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;

How to add space at start of UITextField

Answer 2

您应该像这样覆盖textRectForBounds和editingRectForBounds：

CustomTextField.h：

#import <UIKit/UIKit.h>

@interface CustomTextField : UITextField

@property CGFloat inset;

@end

CustomTextField.m：

#import "CustomTextField.h"

@implementation CustomTextField

- (CGRect)textRectForBounds:(CGRect)bounds {

    CGRect rect = CGRectInset(bounds, _inset, 0);
    return rect;
}


- (CGRect)editingRectForBounds:(CGRect)bounds {

    CGRect rect = CGRectInset(bounds, _inset, 0);
    return rect;
}

@end

ViewController.m：

#import "ViewController.h"
#import "CustomTextField.h"

@interface ViewController ()

@property (weak, nonatomic) IBOutlet CustomTextField *textField;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    _textField.inset = 20;
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

结果：