[英]IOS 7 sizeWithFont Deprecated
I cannot seem to replace the deprecated sizeWithFont
with boundingRecWithSize
correctly. 我似乎无法正确地用
boundingRecWithSize
替换已弃用的sizeWithFont
。 I scoured through all the answers and stayed up all night trying to fix this.I really need help from someone way smarter than I. Here is the code I am trying to modify. 我仔细检查了所有的答案,并熬夜试图解决这个问题。我真的需要一些比我聪明的人的帮助。这是我试图修改的代码。 Any help would be appreciated.
任何帮助,将不胜感激。
CGSize sizeForText = [faqItem.answer sizeWithFont:[UIFont boldSystemFontOfSize:14]
constrainedToSize:CGSizeMake(self.tblView.bounds.size.width - padding, MAXFLOAT)
lineBreakMode:NSLineBreakByWordWrapping];
[sectionInfo insertObject:[NSNumber numberWithFloat:roundf(sizeForText.height + 5)]
inRowHeightsAtIndex:0];
You need to use the sizeWithAttributes property. 您需要使用sizeWithAttributes属性。
CGSize mysize = [string sizeWithAttributes:@{NSFontAttributeName: [UIFont systemFontOfSize:14.0f]}];
You can also set it to an already created font size in order to reduce recoding if you use the size more than once: 您还可以将其设置为已创建的字体大小,以便在多次使用大小时减少重新编码:
CGSize mysize = [string sizeWithAttributes:@{NSFontAttributeName: label1.font}];
I do not believe you can use constrainedToSize with this property. 我不相信你可以使用这个属性的constrainedToSize。 It would have to be separately set on a CGRect.
它必须在CGRect上单独设置。
I wrote an sample for you, hope it's helpful. 我为你写了一个样本,希望它有用。
NSString *text = @" // Do any additional setup after loading the view, typically from a nib.";
CGRect rect = CGRectZero;
NSDictionary *attrDict = @{NSFontAttributeName : [UIFont systemFontOfSize:17]};
rect = [text boundingRectWithSize:CGSizeMake(100,9999)
options:(NSStringDrawingUsesLineFragmentOrigin)
attributes:attrDict
context:Nil];
UILabel *lbl = [[UILabel alloc] init];
lbl.text = text;
rect.origin = CGPointMake(50, 200);
lbl.frame = rect;
lbl.lineBreakMode = NSLineBreakByWordWrapping;
lbl.numberOfLines = 0;
[self.view addSubview:lbl];
lbl.backgroundColor = [UIColor lightGrayColor];
In apple documentation : 在苹果文档中 :
sizeWithFont: Returns the size of the string if it were to be rendered with the specified font on a single line.
sizeWithFont:如果要在单行上使用指定的字体进行渲染,则返回字符串的大小。 (Deprecated in iOS 7.0. Use sizeWithAttributes: instead.)
(在iOS 7.0中不推荐使用。请改用sizeWithAttributes:)
- (CGSize)sizeWithFont:(UIFont *)font Parameters font The font to use for computing the string size.
(CGSize)sizeWithFont:(UIFont *)font参数font用于计算字符串大小的字体。 Return Value The width and height of the resulting string's bounding box.
返回值结果字符串的边界框的宽度和高度。 These values may be rounded up to the nearest whole number.
这些值可以四舍五入到最接近的整数。
So you can use sizeWithAttributes: like this: 所以你可以使用sizeWithAttributes:像这样:
CGSize sizeForText = [faqItem.answer sizeWithAttributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:14]}
constrainedToSize:CGSizeMake(self.tblView.bounds.size.width - padding, MAXFLOAT)
lineBreakMode:NSLineBreakByWordWrapping];
[sectionInfo insertObject:[NSNumber numberWithFloat:roundf(sizeForText.height + 5)]
inRowHeightsAtIndex:0];
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