iPad – UITEXTVIEW width is greater than 512 does not display text

textView = [[UITextView alloc ] initWithFrame: CGRectMake(0, 0, 513, 1024)];

- (void)loadView {
 self.navigationItem.hidesBackButton = YES;

 self.view = [[UIView alloc] init];
 self.view.backgroundColor = [UIColor blackColor];

 RDLocalizedStrings * strings = [RDLocalizedStrings defaultLocalizedStrings];

 NSString* message = [ strings getStringWithKey: @"noUpdatesAvailableText"];

 CGFloat messageFontSize;

 RDRectCreate(message);

 BOOL iPad = NO;
 #ifdef UI_USER_INTERFACE_IDIOM
 iPad = (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad);
#endif
 if (iPad) {
 RDRectWrite(message, 0, 100, 513, 200); 
 messageFontSize = 20.0;
} else {
 RDRectWrite(message, 0, 0 , 320, 480);
 messageFontSize = 20.0;
 }

 textView = [[UITextView alloc] initWithFrame: messageRect];
 textView.text = message;< br /> textView.backgroundColor = [UIColor redColor];
 textView.textAlignment = UITextAlignmentCenter;
 textView.textColor = [UIColor whiteColor];
 textView.font = [UIFont systemFontOfSize: messageFontSize]; 
 textView.editable = NO;

 [self.view addSubview: textView];
}

< p>Whenever I expand UITextView to a size greater than 512, the code is as follows:

textView = [[UITextView alloc] initWithFrame: CGRectMake(0, 0, 513, 1024)];

It no longer displays any text… 512 works, any size is also lower than this, but any greater than 512, it stops displaying any text. Complete code:

- (void)loadView {
 self.navigationItem.hidesBackButton = YES;

 self.view = [[UIView al loc] init];
 self.view.backgroundColor = [UIColor blackColor];

 RDLocalizedStrings * strings = [RDLocalizedStrings defaultLocalizedStrings];

 NSString* message = [ strings getStringWithKey: @"noUpdatesAvailableText"];

 CGFloat messageFontSize;

 RDRectCreate(message);

 BOOL iPad = NO;
 #ifdef UI_USER_INTERFACE_IDIOM
 iPad = (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad);
#endif
 if (iPad) {
 RDRectWrite(message, 0, 100, 513, 200); 
 messageFontSize = 20.0;
} else {
 RDRectWrite(message, 0, 0, 320, 480);
 messageFontSize = 20.0;
 }
< br /> textView = [[UITextView alloc] initWithFrame: messageRect];
 textView.text = message;
 textView.backgroundColor = [UIColor redColor];
 textView.textAlignment = UITextAlignmentCenter;
 textView.textColor = [UIColor whiteColor];
 textVi ew.font = [UIFont systemFontOfSize: messageFontSize];
 textView.editable = NO;

 [self.view addSubview: textView];
}

It seems that UIViewAutoresizingFlexibleWidth makes the UITextView of the ipad hide the text. Resizing with textView.frame = CGRectMake(0,0,768,21) can solve this problem.