Rotate a UIlabel to make it vertical

Question

I have a UILabel. I need to rotate it programmatically.

I have my horizontal UILabel, for example with frame: x:0, y:0, w: 200, h:80.

Now I would like to rotate the label to make it vertical: I try this code:

 [self setTransform:CGAffineTransformMakeRotation(M_PI_2 / 2)];

I can see the contained text rotated. But I would like to rotate the whole frame: With my code, the UILabel continues to have the same frame.

Answer 1

If you prefer set the label position and size visually in you xib or storyboard do the following:

1. Set the labels position and size in the interface builder like you want them to stay after the rotation.

2. Rotate the label and set the frame again:

   -(void)rotateLabel:(UILabel*) label
   {
       CGRect orig = label.frame;
       label.transform=CGAffineTransformMakeRotation(M_PI * 3/2);//270º
       label.frame = orig;
   }
   

Answer 2

Try this working code:

UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 100, 200, 80)];
//set background color to see if the frame is rotated
[label setBackgroundColor:[UIColor redColor]];
[label setText:@"Text Here"];
label.transform=CGAffineTransformMakeRotation( ( 90 * M_PI ) / 180 );
[self.view addSubview:label];

Hope it helps