Question

I’ve got a label which is displayed in a subview. I got the text of the label from a NSString on parse. However, I tried to display the text but it doesnt seems to work. There is no text displayed.

Here is my code. Please let me know if you know how to solve this:

PFQuery *query = [PFQuery queryWithClassName:@"myapp"];
[query getObjectInBackgroundWithId:@"myId"
                             block:^(PFObject *textu, NSError *error) {
                                 if (!error) {

                                     CGRect infoLabelRect = CGRectMake(10, 250, 260, 350);
                                     UILabel *infoLabel = [[UILabel alloc] initWithFrame:infoLabelRect];


                                     NSString *text = [textu objectForKey:@"newstext"];
                                     UIFont *font = nil;
                                     CGFloat points = 17;
                                     CGFloat maxHeight = infoLabel.frame.size.height;
                                     CGFloat textHeight;
                                     do {
                                         font = [UIFont systemFontOfSize:points];
                                         CGSize size = CGSizeMake(infoLabelRect.size.width, 100000);
                                         CGSize textSize = [text sizeWithFont:font constrainedToSize:size lineBreakMode: NSLineBreakByWordWrapping];
                                         textHeight = textSize.height;
                                         points -= 1;
                                     } while (textHeight > maxHeight);
                                     infoLabel.font = font;
                                     infoLabel.numberOfLines = 9;

                                     infoLabel.textColor = [UIColor whiteColor];
                                     infoLabel.textAlignment = NSTextAlignmentCenter;
                                     infoLabel.backgroundColor = [UIColor clearColor];
                                     infoLabel.shadowColor = [UIColor blackColor];
                                     infoLabel.shadowOffset = CGSizeMake(0, 1);

                                     [infoLabel sizeToFit];
                                     [contentView addSubview:infoLabel];


                                 } else {
                                     // Log details of our failure
                                     CGRect infoLabelRect = CGRectMake(10, 250, 260, 350);
                                     UILabel *infoLabel = [[UILabel alloc] initWithFrame:infoLabelRect];

                                     infoLabel.text = @"Connection error!";

                                 }
                             }];

Answer 1

Your first part of code doesn’t contain assignment to text

infoLabel.text = text; // or @"Some text" for testing

Your last part of code only creates UILabel, but doesn’t add it as subview

UILabel *infoLabel = [[UILabel alloc] initWithFrame:infoLabelRect];
infoLabel.text = @"Connection error!";
[contentView addSubview:infoLabel];