此方法在 iOS 7.0 中已弃用:
drawAtPoint:forWidth:withFont:fontSize:lineBreakMode:baselineAdjustment:
现在使用 drawInRect:withAttributes:
代替。
我找不到 fontSize 和 baselineAdjustment 的 attributeName。
编辑
感谢@Puneet 的回答。
实际上,我的意思是如果没有这些 key ,如何在iOS 7中实现这个方法?
像下面的方法:
+ (CGSize)drawWithString:(NSString *)string atPoint:(CGPoint)point forWidth:(CGFloat)width withFont:(UIFont *)font fontSize:(CGFloat)fontSize
lineBreakMode:(IBLLineBreakMode)lineBreakMode
baselineAdjustment:(UIBaselineAdjustment)baselineAdjustment {
if (iOS7) {
CGRect rect = CGRectMake(point.x, point.y, width, CGFLOAT_MAX);
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineBreakMode = lineBreakMode;
NSDictionary *attributes = @{NSFontAttributeName: font, NSParagraphStyleAttributeName: paragraphStyle};
[string drawInRect:rect withAttributes:attributes];
size = CGSizeZero;
}
else {
size = [string drawAtPoint:point forWidth:width withFont:font fontSize:fontSize lineBreakMode:lineBreakMode baselineAdjustment:baselineAdjustment];
}
return size;
}
我不知道如何将fontSize
和baselineAdjustment
传递给
属性
字典。
例如
NSBaselineOffsetAttributeName
键应该传递一个 NSNumer
给它,但是 baselineAdjustment
是 Enum
。
难道没有其他方法可以传递这两个变量吗?
最佳答案
您可以使用 NSDictionary
并像这样应用属性:
NSFont *font = [NSFont fontWithName:@"Palatino-Roman" size:14.0];
NSDictionary *attrsDictionary =
[NSDictionary dictionaryWithObjectsAndKeys:
font, NSFontAttributeName,
[NSNumber numberWithFloat:1.0], NSBaselineOffsetAttributeName, nil];
使用 attrsDictionary
作为参数。
引用:Attributed String Programming Guide
迅速: IN String drawInRect 不可用,但我们可以使用 NSString 代替:
let font = UIFont(name: "Palatino-Roman", size: 14.0)
let baselineAdjust = 1.0
let attrsDictionary = [NSFontAttributeName:font, NSBaselineOffsetAttributeName:baselineAdjust] as [NSObject : AnyObject]
let str:NSString = "Hello World"
str.drawInRect(CGRectZero, withAttributes: attrsDictionary)
关于ios - 如何使用drawInRect :withAttributes: instead of drawAtPoint:forWidth:withFont:fontSize:lineBreakMode:baselineAdjustment: in iOS 7,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19442653/