My app crashes after multiple rotates

My app is crashing when I try and rotate it more than a couple of times. I first thought it was just the iPhone Simulator, so I loaded the app onto an iPod touch, and it crashed after fewer rotates in a row. I suspect it's a memory leak in one of my rotate methods. The only place I can think that the c开发者_Python百科rash is being caused is in willRotateToInterfaceOrientation:duration:. The only two methods related to rotate that I've added/extended are shouldAutorotateToInterfaceOrientation: and willRotateToInterfaceOrientation:duration and I don't think it's the first because it only contains the two words: return YES;. Here is my willRotateToInterfaceOrientation:duration: method so you can review it and see where the possible memory leak is.

-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)orientation duration:(NSTimeInterval)duration 
{
 UIFont *theFont;


 if ((orientation == UIInterfaceOrientationLandscapeLeft) || (orientation == UIInterfaceOrientationLandscapeRight))
 {
  theFont = [yearByYear.font fontWithSize:16.0];
  yearByYear.font = theFont;
  [theview setContentSize:CGSizeMake(460.0f, 635.0f)];
 }
 else
 {
  theFont = [yearByYear.font fontWithSize:10.0];
  yearByYear.font = theFont;
  [theview setContentSize:CGSizeMake(300.0f, 460.0f)];
 }

 [theFont release];
}

yearByYear is a UITextView and theview is a UIScrollView.

You shouldn't be releasing theFont. You don't own the object.

You can also simplify what you're doing to:

-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)orientation duration:(NSTimeInterval)duration  {

   if ((orientation == UIInterfaceOrientationLandscapeLeft) || (orientation == UIInterfaceOrientationLandscapeRight)) {
      yearByYear.font = [yearByYear.font fontWithSize:16.0]
      [theview setContentSize:CGSizeMake(460.0f, 635.0f)];
   }
   else
   {
      yearByYear.font = [yearByYear.font fontWithSize:10.0]
      [theview setContentSize:CGSizeMake(300.0f, 460.0f)];
   }
}

Getting rid of theFont completely.