iOS UILabel顯示html標籤

iOS7以後系統提供了顯示html標籤的方法

UIKIT_EXTERN NSString *const NSHTMLTextDocumentType NS_AVAILABLE_IOS(7_0);

直接上程式碼

NSString *str = @"<font color="#6c6c6c">滿20減5 滿40減15，還剩<font color="#ff9147">113天";
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(30, 50, 300, 50)];
NSAttributedString *attrStr = [[NSAttributedString alloc] initWithData:[str dataUsingEncoding:NSUnicodeStringEncoding] options:@{NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType} documentAttributes:nil error:nil];
label.attributedText = attrStr;
//如果想要改變文字的字型,請在設定attributedText之後設定
label.font = [UIFont systemFontOfSize:20];
[self.view addSubview:label];