blocks|key|10507|text|你可以试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|10508|NSDictionary+*attributes+=+@{NSFontAttributeName:+[UIFont+fontWithName:@"HelveticaNeue"+size:14]};
//+NSString+class+method:+boundingRectWithSize:options:attributes:context+is
//+available+only+on+ios7.0+sdk.
CGRect+rect+=+[textToMeasure+boundingRectWithSize:CGSizeMake(width,+CGFLOAT_MAX)
++++++++++++++++++++++++++++++++++++++++++options:NSStringDrawingUsesLineFragmentOrigin
+++++++++++++++++++++++++++++++++++++++attributes:attributes
++++++++++++++++++++++++++++++++++++++++++context:nil];|code-block|syntax|javascript|10509|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

well you can try this :

<pre><code>NSDictionary *attributes = @{NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue" size:14]};
// NSString class method: boundingRectWithSize:options:attributes:context is
// available only on ios7.0 sdk.
CGRect rect = [textToMeasure boundingRectWithSize:CGSizeMake(width, CGFLOAT_MAX)
 options:NSStringDrawingUsesLineFragmentOrigin
 attributes:attributes
 context:nil];
</code></pre>

blocks|key|227083|text|我是这样做的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|227084|++++//+Get+a+font+to+draw+it+in
UIFont+*font+=+[UIFont+boldSystemFontOfSize:+28];

CGRect+textRect;
NSDictionary+*attributes+=+@{NSFontAttributeName:+font};

//+How+big+is+this+string+when+drawn+in+this+font?
textRect.size+=+[text+sizeWithAttributes:attributes];

//+Draw+the+string
[text+drawInRect:textRect+withAttributes:attributes];|code-block|syntax|javascript|227085|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is how I did it:

<pre><code> // Get a font to draw it in
UIFont *font = [UIFont boldSystemFontOfSize: 28];

CGRect textRect;
NSDictionary *attributes = @{NSFontAttributeName: font};

// How big is this string when drawn in this font?
textRect.size = [text sizeWithAttributes:attributes];

// Draw the string
[text drawInRect:textRect withAttributes:attributes];
</code></pre>

blocks|key|10558|text|这是我处理这两种情况的方法，属于NSString类别。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|10559|-+(CGSize)+sizeWithFontOrAttributes:(UIFont+*)+font+{
++++if+(IS_IOS7)+{
++++++++NSDictionary+*fontWithAttributes+=+@{NSFontAttributeName:font};
++++++++return+[self+sizeWithAttributes:fontWithAttributes];
++++}+else+{
++++++++return+[self+sizeWithFont:font];
++++}
}|code-block|syntax|javascript|10560|entityMap^0|G|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Here's my method to deal with both situations, goes in an <code>NSString</code> category.

<pre><code>- (CGSize) sizeWithFontOrAttributes:(UIFont *) font {
 if (IS_IOS7) {
 NSDictionary *fontWithAttributes = @{NSFontAttributeName:font};
 return [self sizeWithAttributes:fontWithAttributes];
 } else {
 return [self sizeWithFont:font];
 }
}
</code></pre>

blocks|key|227117|text|对于Xamarin.iOS：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|227118|UIFont+descriptionLabelFont+=++UIFont.SystemFontOfSize+(11);
NSString+textToMeasure+=+(NSString)DescriptionLabel.Text;

CGRect+labelRect+=+textToMeasure.GetBoundingRect+(
++++new+CGSize(this.Frame.Width,+nfloat.MaxValue),+
++++NSStringDrawingOptions.UsesLineFragmentOrigin,+
++++new+UIStringAttributes+()+{+Font+=+descriptionLabelFont+},+
++++new+NSStringDrawingContext+()
);|code-block|syntax|javascript|227119|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For Xamarin.iOS:

<pre><code>UIFont descriptionLabelFont = UIFont.SystemFontOfSize (11);
NSString textToMeasure = (NSString)DescriptionLabel.Text;

CGRect labelRect = textToMeasure.GetBoundingRect (
 new CGSize(this.Frame.Width, nfloat.MaxValue), 
 NSStringDrawingOptions.UsesLineFragmentOrigin, 
 new UIStringAttributes () { Font = descriptionLabelFont }, 
 new NSStringDrawingContext ()
);
</code></pre>

blocks|key|10601|text|作为另一种选择，如果您正在查看UITextView，则可以始终使用NSLayoutManager方法：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|10602|CGSize+textSize+=+[textView.layoutManager+usedRectForTextContainer:textView.textContainer].size;|code-block|syntax|javascript|10603|您还可以通过以下方式查找给定字体的行高：|10604|UIFont+*font;
CGFloat+lineHeight+=+font.lineHeight;|10605|entityMap^0|F|A|X|F|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

As an alternative, if you're looking at <code>UITextView</code>, you can always use the <code>NSLayoutManager</code> method:

<pre><code>CGSize textSize = [textView.layoutManager usedRectForTextContainer:textView.textContainer].size;
</code></pre>

You can also find the line height for a given font by:

<pre><code>UIFont *font;
CGFloat lineHeight = font.lineHeight;
</code></pre>

blocks|key|227201|text|如果您设置了标签的文本、字体、numberOfLines和宽度，此方法将返回标签的大小：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|227202|myLabel.numberOfLines+=+0;

CGSize+size+=+[myLabel+sizeThatFits:CGSizeMake(myLabel.frame.size.width,+CGFLOAT_MAX)];`|code-block|syntax|javascript|227203|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you have the text, font, numberOfLines and width of your label set, this method returns the size of your label:

<pre><code>myLabel.numberOfLines = 0;

CGSize size = [myLabel sizeThatFits:CGSizeMake(myLabel.frame.size.width, CGFLOAT_MAX)];`
</code></pre>

blocks|key|10662|text|CGSize+stringsize+=+[lbl.text+sizeWithAttributes:
+++++++++++++++++++++++++@{NSFontAttributeName:[UIFont+fontWithName:FontProximaNovaRegular+size:12.0]}];


CGSize+adjustedSize+=+CGSizeMake(ceilf(stringsize.width),+ceilf(stringsize.height));|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|10663|使用ceilf方法进行合理管理|unstyled|offset|length|style|CODE|10664|entityMap^0|0|2|5|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@$G|O|H|P|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>CGSize stringsize = [lbl.text sizeWithAttributes:
 @{NSFontAttributeName:[UIFont fontWithName:FontProximaNovaRegular size:12.0]}];


CGSize adjustedSize = CGSizeMake(ceilf(stringsize.width), ceilf(stringsize.height));
</code></pre>

use <code>ceilf</code> method to manage properlly

How do you return a multiline text CGSize from the new iOS 7 method sizeWithAttributes?

I would like this to produce the same results as sizeWithFont:constrainedToSize.

<pre><code>NSString *text = @"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus eu urna quis lacus imperdiet scelerisque a nec neque. Mauris eget feugiat augue, vitae porttitor mi. Curabitur vitae sollicitudin augue. Donec id sapien eros. Proin consequat tellus in vehicula sagittis. Morbi sed felis a nibh hendrerit hendrerit. Lorem ipsum dolor sit."

CGSize textSize = [text sizeWithAttributes:@{ NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-Light" size:16.0] }];
</code></pre>

This method only produces the height for a single line of text.

iOS 7 sizeWithAttributes: replacement for sizeWithFont:constrainedToSize

Xamarin

如何从新的iOS 7方法CGSize返回多行文本sizeWithAttributes？我希望这会产生与sizeWithFont:constrainedToSize相同的结果。NSString *text = @"Lorem ipsum dolor sit amet, consectetur adipiscing eli...

问iOS 7 sizeWithAttributes:替换字体大小:constrainedToSize
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