Question

我有一个UILabel文本 www.google.com 。现在，如果有人将光标移动到文本上并按下它，则应打开谷歌的主页。可能吗？请解释一下。

[emptyLabel setText:@"Sorry it looks like google is not currently available in any of your favourite places nearby, why not ask them to sign up at www.google.com"]

Answer 1

考虑使用NIAttributedLabel中的Nimbus project。这是一个自动检测并创建可点击链接的替换UILabel替换。

Answer 2

您还可以使用UITextView并启用数据检测器并禁用编辑，从而感受UILabel。具有必要属性集的UItextview将自动检测http链接，电话号码等

如果必须使用UILabel，则需要添加UITapgesture并为点击提供目标。

Answer 3

// While Loading the view

[self underlineLabel:label withFont:[UIFont systemFontOfSize:17]];

UITapGestureRecognizer *gr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(myAction:)]; 
[label addGestureRecognizer:gr];
gr.numberOfTapsRequired = 1;

//

- (CGFloat)widthOfString:(NSString *)string withFont:(UIFont *)font {
    CGSize stringSize = [string sizeWithFont:font];
    CGFloat width = stringSize.width;
    return width;
}

- (CGFloat)heightOfString:(NSString *)string withFont:(UIFont *)font {
    CGSize stringSize = [string sizeWithFont:font];
    CGFloat height = stringSize.height;
    return height;
}

-(void)underlineLabel:(UILabel *)lbl withFont:(UIFont *)fnt {
    float wdth = [self widthOfString:lbl.text withFont:fnt];
    float higt = [self heightOfString:lbl.text withFont:fnt];
    UIView *viw = [[UIView alloc]initWithFrame:CGRectMake((lbl.frame.size.width - wdth) / 2, (lbl.frame.size.height / 2) + (higt / 2), wdth, 2)];
    [viw setBackgroundColor:[UIColor bluecolor]];
    [lbl addSubview:viw];
}

// To Add action for gesture recognizer:

- (void)myAction:(UITapGestureRecognizer *)gr {
    // Define actions here
}

Answer 4

您可以使用UTTextView自动检测网址或为网址单独创建按钮。感谢。

如何在iphone中的UILabel文本中设置超链接

4 个答案: