wwwbbat
wwwbbat
The 'font' property don't change the count string font size. [attributedString addAttribute:NSFontAttributeName value:[UIFont fontWithName:self.font.fontName size:19.0f] range:[string rangeOfString:count]];
shuffle 方法可不可以拿来从数组中取一定数量的随机内容? 先洗牌,再取前N个。这样取得的内容符不符合随机的要求? ``` NSArray *originArray = ......; NSMutableArray *tmp = [NSMutableArray arrayWithArray:originArray]; [tmp shuffle]; NSUInteger count = 10; NSArray *randomArray; if (tmp.count >= count) { randomArray = [tmp subarrayWithRange:NSMakeRange(0,...
从NSMutableSet中删除元素时将会判断hash值,在删除之前如果修改了model中的某个值,会导致两次计算hash值时结果不一样。直接反应就是NSMutableSet的removeObject方法无法删除object。
When CocoaPods is used, the latest version is not available for iOS 9. If the library really only supports iOS 10 and higher versions. Please modify the relevant documents.