iOS - trying to rotate a text label and the label disappears

Question

I\'m trying to rotate a label on my view 90 degrees. I\'ve tried the two following ways to do it and the label just disappears from the screen. I triple checked that the prope

Answer 1

I am not 100% sure if it works or not but why are you not using M_PI_2. It's just simple thought that you are assuming Value of Pi to be 3.14 but the exact value is 3.14159...

I did it like this and it worked fine :

UILabel *lbl = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 50, 70)];
lbl.text = @"New";
lbl.backgroundColor = [UIColor clearColor];
lbl.textColor = [UIColor whiteColor];
lbl.highlightedTextColor = [UIColor blackColor];
lbl.font = [UIFont systemFontOfSize:12];
lbl.transform = CGAffineTransformMakeRotation(M_PI_2);
[self.view addSubview:lbl];

You can also check Answers from these Questions :

How to Render a rotated UIlabel

Rotating UILabel at its center

Hope it will be helpful for you.

Answer 2

It may simply be that the view's bounds have become too small for the text. When the text can't be fully displayed in label view in iOS, it simply disappears, rather than remaining on show. Perhaps it's a deliberate Apple policy to prevent apps shipping with clipped text and forcing the dev to fix ;)

It sounds very much as though this is what is happening. You have said the text gets smaller as you rotate it, which indicates you have the shrink text to fit property set on the label view. This will shrink the text as the constraining view reduces in size. But the text will only shrink so much before it disappears.

If the label view itself would seem to be big enough, also be sure to check the bounds of each parent view the label is contained in, up through the view hierarchy.