问题
I need to get text height and grow cell's height depending upon text height which increase or decrease dynamically. I now successfully getting correct height of text for iOS 6 and prior but I am not able to get correct height iOS 7 and later. I googled and found many solution but this doesn't worked. You can see attached Image of same cell and see difference in iOS 7 text is truncating and in iOS 6 its showing correct size. I used UILabel. Follow my code of what exactly I am doing. Kindly look into it and guide me better solution if any one experienced this sort of thing earlier.
- (CGSize)getSizeOfText:(NSString *)text withFont:(UIFont *)font widthOftext:(int )txtWidth
{
CGSize boundingSize = CGSizeMake(txtWidth, 9999);
CGSize size;
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7)
{
CGRect textRect = [text boundingRectWithSize:boundingSize
options:NSStringDrawingUsesLineFragmentOrigin
attributes:@{NSFontAttributeName:font}
context:nil];
size=textRect.size;
}
else
{
CGSize requiredSize = [text sizeWithFont:font constrainedToSize:boundingSize lineBreakMode:UILineBreakModeWordWrap];
size=requiredSize;
}
return size;
}
On iOS 6 device.
On iOS 7 device.
回答1:
Please try this code
Declare #define kMaxHeight 1000.0f in header.
CGSize sizeNew = [YourText sizeWithFont:[UIFont fontWithName:Fontname size:intFontSize]
constrainedToSize:CGSizeMake(320, kMaxHeight)
lineBreakMode:NSLineBreakByWordWrapping];
txtText.numberOfLines = 0;
If you have any question let m e know.
来源：https://stackoverflow.com/questions/22652743/get-correct-text-height-for-ios-7-in-iphone-sdk