使用目标c在UIImageView中添加图像圈

Question

我有Array.prototype.qpush = function( vals, fixed ) { if (arguments.length) { if (Array.isArray(vals)) { for (var v of vals) { this.push(v); } } else { this.push(vals); } var _f = (typeof this.fixed != undefined) ? this.fixed : 0; if (typeof fixed != undefined) { _f = (Number(fixed)===fixed && fixed%1===0 ) ? fixed : _f; } this.fixed = _f; if (this.fixed>0) this.splice(0, this.length - _f); } } var q = new Array(); q.push(0); q.qpush( [1, 2, 3], 10 ); q.qpush( [4] ); q.qpush( 5 ); q.qpush( [6, 7, 8, 9, 10, {k:"object"} ] ); console.log(q); ，这是我展示图片的代码：

UIImageView

要在图像周围添加圆圈，我这样做了：

callRecImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"call_accept.png"]];
        [callRecImage setFrame:CGRectMake(133,top, 36, 40)];
        [self.view addSubview: callRecImage];

我的图片视图是：

我的输出是：

我想在我的callRecImage.layer.cornerRadius = callRecImage.frame.size.width /2; callRecImage.layer.borderWidth = 2.0f; callRecImage.layer.borderColor = [UIColor grayColor].CGColor; callRecImage.clipsToBounds = YES; 添加一个圈子，我已按照此链接image in circle frame iOS，但它按预期工作

我想在手机图像周围加一个大圆圈。任何形式的帮助将不胜感激。

提前致谢

Answer 1

[callRecImage setFrame:CGRectMake(133,top, 36, 40)];
//Set Height and width equal
//Like 
[callRecImage setFrame:CGRectMake(133,top, 40, 40)];

Answer 2

每当你为同一个视图选择{*}时，圆圈将始终小于视图矩形，因此请使用这两个解决方案中的一个。

  

我已经过测试，两种解决方案都处于工作状态

1. 使用以下代码更改图片的layer.cornerRadius并增加UIViewContentMode框架尺寸（高度和宽度，两者应相等）

   UIImageView

   因此，如果您增加callRecImage.contentMode = UIViewContentModeCenter; 框架尺寸，它会将您的图片保持在中心位置，并且不会在UIImageView

   内拉伸您的图片

   UIImageView


     或



1. 添加一个UIImageView *callRecImage = [[UIImageView alloc] initWithFrame:CGRectMake(133, top, 60, 60)]; callRecImage.contentMode = UIViewContentModeCenter; [callRecImage setImage:[UIImage imageNamed:@"call_accept.png"]]; callRecImage.layer.cornerRadius = callRecImage.frame.size.width /2; callRecImage.layer.borderWidth = 2.0f; callRecImage.layer.borderColor = [UIColor grayColor].CGColor; callRecImage.clipsToBounds = YES; [self.view addSubview: callRecImage]; 作为UIView的超级视图，并将UIImageView添加到layer.cornerRadius

   UIView

Answer 3

使用以下代码

#import <QuartzCore/QuartzCore.h>

callRecImage.layer.masksToBounds = YES;
callRecImage.layer.cornerRadius = callRecImage.bounds.size.width/2;
callRecImage.layer.borderWidth = 2.0f;
callRecImage.layer.borderColor = [UIColor grayColor].CGColor;

Answer 4

添加以下行以仅在ImageView

中填充您的图片

callRecImage.contentMode = UIViewContentModeScaleAspectFill;

Answer 5

试试此代码

callRecImage.layer.backgroundColor=[[UIColor clearColor] CGColor];
callRecImage.layer.cornerRadius=20;
callRecImage.layer.borderWidth=2.0;
callRecImage.layer.masksToBounds = YES;
callRecImage.layer.borderColor=[[UIColor grayColor] CGColor]