在Ios中创建仅具有底行的文本字段
问题描述：
可以在Ios中创建一个文本字段，该文本字段仅显示底边框线，不显示上边框线和边线.如果是，我该如何实现
Is is possible to create a Textfield in Ios which shows only bottom border line and not upper and side lines. if Yes, how can i implement this
答
是可以的.这是操作方法:
Yes it is possible. Here is how to do it:
CALayer *border = [CALayer layer];
CGFloat borderWidth = 2;
border.borderColor = [UIColor darkGrayColor].CGColor;
border.frame = CGRectMake(0, textField.frame.size.height - borderWidth, textField.frame.size.width, textField.frame.size.height);
border.borderWidth = borderWidth;
[textField.layer addSublayer:border];
textField.layer.masksToBounds = YES;
希望这会有所帮助！