ios - 像这样自定义 UITextField

Question

我必须像上图那样自定义 UITextField，所以我尝试编写自定义类扩展 UITextField 类。但我的问题是：矩形的描边阴影轮廓，并在我的自定义代码中为文本字段设置白色背景是：

- (void)drawRect:(CGRect)rect
 {
  // Drawing code
     self.autocorrectionType = UITextAutocorrectionTypeNo;
     self.autocapitalizationType = UITextAutocapitalizationTypeNone;
     CALayer *layer = self.layer;
     layer.cornerRadius = 15.0;
     layer.masksToBounds = YES;
     layer.borderWidth = 1.0;
     layer.borderColor = [[UIColor colorWithRed:0 green:0 blue:0 alpha:1] CGColor];
     [layer setShadowColor: [[UIColor blackColor] CGColor]];
     [layer setShadowOpacity:1];
     [layer setShadowOffset: CGSizeMake(2.0, 2.0)];
     [self setClipsToBounds:NO];
     [self setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
     [self setContentHorizontalAlignment:UIControlContentHorizontalAlignmentLeft];
 }
  - (CGRect)textRectForBounds:(CGRect)bounds {
          return CGRectMake(bounds.origin.x + 20, bounds.origin.y + 8,
                  bounds.size.width - 40, bounds.size.height - 16);
 }
 - (CGRect)editingRectForBounds:(CGRect)bounds {
          return [self textRectForBounds:bounds];
 }

所以我的问题是：我缺少什么代码（这里设置了白色背景，为边框设置了轮廓阴影）感谢您的帮助！

Answer 1

你先试试这个吗？
self.textField.background = myUIImage;
self.textField.borderStyle = UITextBorderStyleNone;

Answer 2

最后，我在阅读了一些教程后解决了我的问题，这是我编写的代码

- (void)drawRect:(CGRect)rect
{

     self.autocorrectionType = UITextAutocorrectionTypeNo;
     self.autocapitalizationType = UITextAutocapitalizationTypeNone;
     CALayer *layer = self.layer;
     layer.backgroundColor = [[UIColor whiteColor] CGColor];
     layer.cornerRadius = 15.0;
     layer.masksToBounds = YES;
     layer.borderWidth = 1.0;
     layer.borderColor = [[UIColor colorWithRed:0 green:0 blue:0 alpha:1] CGColor];
     [layer setShadowColor: [[UIColor blackColor] CGColor]];
     [layer setShadowOpacity:1];
     [layer setShadowOffset: CGSizeMake(0, 2.0)];
     [layer setShadowRadius:5];
     [self setClipsToBounds:NO];
     [self setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
     [self setContentHorizontalAlignment:UIControlContentHorizontalAlignmentLeft];
  }
  - (CGRect)textRectForBounds:(CGRect)bounds {
        return CGRectMake(bounds.origin.x + 20, bounds.origin.y + 8,
                  bounds.size.width - 40, bounds.size.height - 16);
   }
  - (CGRect)editingRectForBounds:(CGRect)bounds {
        return [self textRectForBounds:bounds];
   }

Answer 3

使用文本字段框的图像，并将其放在设置为自定义的普通 UITextField 后面，因此是透明的。这样您就可以获得文本字段功能，并且可以在其后面放置任何类型的图形。