Reachability

常常出現這個錯誤
+ (Reachability*) reachabilityWithAddress: (const struct sockaddr_in*) hostAddress;
*declaration of 'struct sockaddr_in*' will not be visible outside of this function*
看了很討厭後來再找到解決方法
解答在這
import netinet/in.h
import <>打不上去所以請自己<>

UILabel and UITextView

最近遇到一個問題
字串相同字型大小相同
在UILabel跟UITextView呈現的size不一樣
後來在這邊找到了解答


textView.textContainer.lineFragmentPadding = 0; textView.textContainerInset = UIEdgeInsetsZero; NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; paragraphStyle.lineSpacing = -0.38; NSDictionary *attrsDictionary = @{ NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue" size:13.0f], NSParagraphStyleAttributeName: paragraphStyle}; textView.attributedText = [[NSAttributedString alloc] initWithString:textView.text attributes:attrsDictionary];