UIRefreshControl attributedTitle multiple lines - ios

Question

Is it possible to use multiple lines in the UIRefreshControl title? Whenever I add \n to the NSAttributedString only the first line will be displayed. I'm trying to set a title and on the next line some more text. So is there a workaround to use two lines of text in the UIRefreshControl?
This is the current code where only "Title Here" is displayed:
self.refreshControl = [[UIRefreshControl alloc] init];
NSString *title = #"Title Here";
NSString *subText = #"Subtext Here";
NSMutableAttributedString *attString=[[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:#"%#\n%#",title,subText]];
[attString addAttribute:NSFontAttributeName value:[UIFont fontWithName:#"Helvetica" size:20.0f] range:NSMakeRange(0, [title length])];
[attString addAttribute:NSFontAttributeName value:[UIFont fontWithName:#"Helvetica" size:14.0f] range:NSMakeRange([title length],[subText length])];
[attString addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:NSMakeRange(0, [title length])];
[attString addAttribute:NSForegroundColorAttributeName value:[UIColor lightGrayColor] range:NSMakeRange([title length], [subText length])];
self.refreshControl.attributedTitle = attString;

Answer 1

here is a tricky method: find the UILabel in the UIRefreshControl and set numberOfLines = 0.
UILabel *titleLabel = [[[[self.refreshControl subviews] firstObject] subviews] lastObject];
if (titleLabel) {
titleLabel.numberOfLines = 0;
NSString title = #"Pull to Refresh.\nUpdated Time: 09:30"; // \n for new line.
self.refreshControl.attributedTitle = [[NSAttributedString alloc] initWithString:title];
}

Answer 2

This piece of code will work
NSString *title = #"Title Here";
NSString *subText = #"Subtext Here";
NSMutableAttributedString *titleAttString = [[NSMutableAttributedString alloc] initWithString:title];
NSMutableAttributedString *subTitleAttString = [[NSMutableAttributedString alloc] initWithString:subText];
[titleAttString addAttribute:NSFontAttributeName value:[UIFont fontWithName:#"Helvetica" size:20.0f] range:NSMakeRange(0, [title length])];
[subTitleAttString addAttribute:NSFontAttributeName value:[UIFont fontWithName:#"Helvetica" size:14.0f] range:NSMakeRange(0,[subTitle length])];
[titleAttString addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:NSMakeRange(0, [title length])];
[subTitleAttString addAttribute:NSForegroundColorAttributeName value:[UIColor lightGrayColor] range:NSMakeRange(0, [subTitle length])];
[titleAttString appendAttributedString:subTitleAttString];
self.refreshControl.attributedTitle = titleAttString;

Answer 3

The trick is to change the UILable's property of Refresh Controller to Zero.
The hack is we have to find the label through the subviews and there child as shown below.
Here is a Swift version
if let refreshLabel = refreshControl?.subviews.first?.subviews.last as? UILabel {
refreshLabel.numberOfLines = 0
}
So here is the full code sample
private var marketRefreshController = UIRefreshControl()
private var lastUpdatedDate = Date()
override func viewDidLoad() {
super.viewDidLoad()
tableView.refreshControl = marketRefreshController
if let refreshLabel = refreshControl?.subviews.first?.subviews.last as? UILabel {
refreshLabel.numberOfLines = 0
}
marketRefreshController.addTarget(self, action: #selector(refreshMarketData), for: .valueChanged)
marketRefreshController.tintColor = UIColor.blue
let textAttributes = [NSAttributedString.Key.font: UIFont.appSubTitle,
NSAttributedString.Key.foregroundColor: UIColor.blue]
let timeSinceLastUpdate = lastUpdatedDate.timeAgoSinceNow // Date Sting Converter Helper Method
let displayString = "Fetching Market Data ... \n Last Updated: \(timeSinceLastUpdate)"
marketRefreshController.attributedTitle = NSAttributedString(string: displayString,
attributes: textAttributes)
tableView.addSubview(marketRefreshController)
}
The expected output should be like -