我有一个UITableView,我想在同一行中使用不同的颜色显示每行的文本.
我试过这个代码,尝试从Obj-C翻译,但我不能让它工作
let object = self.fetchedResultsController.objectAtIndexPath(indexPath) as NSManagedObject
var attrString: NSMutableAttributedString = NSMutableAttributedString(string: object.valueForKey("example1")!.description)
attrString.addAttribute(NSForegroundColorAttributeName,value: UIColor.redColor(),range: NSMakeRange(0,attrString.length))
var stringToCell:String = String(format: "%@ %@",attrString,object.valueForKey("example2")!.description)
cell.textLabel?.text = stringToCell
这一切的输出是
其中数字34对应于object.valueForKey(“example1”)!. description,所以问题是数字不是红色,而第二部分(object.valueForKey(“example2”)！.description)被替换为{ .
解决方法
我认为问题可能在于分配给cell.textLabel？.text而不是cell.textLabel？.attributedText.也许是这样的：
let object = self.fetchedResultsController.objectAtIndexPath(indexPath) as NSManagedObject
var attrString: NSMutableAttributedString = NSMutableAttributedString(string: object.valueForKey("example1")!.description)
attrString.addAttribute(NSForegroundColorAttributeName,attrString.length))
var descString: NSMutableAttributedString = NSMutableAttributedString(string: String(format: " %@",object.valueForKey("example2")!.description))
descString.addAttribute(NSForegroundColorAttributeName,value: UIColor.blackColor(),descString.length))
attrString.appendAttributedString(descString);
cell.textLabel?.attributedText = attrString
不确定你是否希望字符串的第二部分是红色或其他颜色,所以我把它变黑了.
