[英]UITextField with corner radius only on top or bottom
I have a UITextField
that is added to a view and I'm trying to change it's default appearance. 我有一个添加到视图的UITextField
,我正在尝试更改它的默认外观。
What I want is to change the corner radius, but only on top / bottom. 我想要的是改变角半径,但只在顶部/底部。 I'm doing so by doing this: 我是这样做的:
UIBezierPath *usernameMaskPathWithRadiusTop = [UIBezierPath bezierPathWithRoundedRect:username.bounds
byRoundingCorners:(UIRectCornerTopLeft | UIRectCornerTopRight)
cornerRadii:CGSizeMake(4.0, 4.0)];
UIBezierPath *passwordMaskPathWithRadiusBottom = [UIBezierPath bezierPathWithRoundedRect:password.bounds
byRoundingCorners:(UIRectCornerBottomLeft | UIRectCornerBottomRight)
cornerRadii:CGSizeMake(4.0, 4.0)];
CAShapeLayer *usernameMaskLayer = [[CAShapeLayer alloc] init];
usernameMaskLayer.frame = username.bounds;
usernameMaskLayer.path = usernameMaskPathWithRadiusTop.CGPath;
CAShapeLayer *passwordMaskLayer = [[CAShapeLayer alloc] init];
passwordMaskLayer.frame = password.bounds;
passwordMaskLayer.path = passwordMaskPathWithRadiusBottom.CGPath;
[username setTextAlignment:NSTextAlignmentLeft];
[username setClearButtonMode:UITextFieldViewModeWhileEditing];
usernameLayer.shadowOpacity = 0.0;
[usernameLayer setMask:usernameMaskLayer];
[password setTextAlignment:NSTextAlignmentLeft];
[username setClearButtonMode:UITextFieldViewModeWhileEditing];
passwordLayer.shadowOpacity = 0.0;
[passwordLayer setMask:passwordMaskLayer];
Where UITextField *username
, UITextField *password
and the CAShapeLayer *usernameLayer = username.layer
and CAShapeLayer *passwordLayer = password.layer
are defined as described. 其中UITextField *username
, UITextField *password
和CAShapeLayer *usernameLayer = username.layer
和CAShapeLayer *passwordLayer = password.layer
的定义CAShapeLayer *passwordLayer = password.layer
。
The issue is that after I perform that above, I get no fields at all, actually they are there but everything is transparent, text and background color. 问题是,在我执行上述操作之后,我根本没有任何字段,实际上它们在那里但是一切都是透明的,文本和背景颜色。 I'm not sure how to get that back or how to fix whatever I'm doing wrong. 我不知道如何得到回来或如何解决我做错的事情。
How exactly can I do what I'm trying right ? 我怎么能做我正在尝试的事情呢?
It seems like what I had to do is instead of setting a mask I had to add as sublayer: 看起来我要做的不是设置一个我必须添加为子层的掩码:
[username.layer addSublayer:usernameMaskLayer];
// instead of the old
[usernameLayer setMask:usernameMaskLayer];
And then for setting a background I just had to setFillColor
on the usernameMaskLayer
. 然后设置一个背景我刚setFillColor
对usernameMaskLayer
。
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