UITextView Scrolling

After hours of fiddling (and cursing) with the UITextView scrolling behavior, I finally got the behavior I wanted. If you ever need to programmatically insert text into a UITextView and move the cursor to right after the insertion point, the following code snippet should work. Make sure you do the bolded items otherwise the UITextView won't scroll properly.

textview.scrollEnabled = NO;
NSString *contentsToAdd = @"some string";
NSInteger len = [contentsToAdd length];
NSRange cursorPosition = [self.textview selectedRange];
NSMutableString *tfContent = [[NSMutableString alloc] initWithString:[self.textview text]];

// insert the string or replace the selection
NSUInteger loc = cursorPosition.location;
if (cursorPosition.length == 0)
  [tfContent insertString:contentsToAdd atIndex:loc];
else
  [tfContent replaceCharactersInRange:cursorPosition withString:contentsToAdd];

// now update the text view
[self.text setText:tfContent];
cursorPosition.location = loc + len;
cursorPosition.length = 0;

// should move the cursor
textview.scrollEnabled = YES;
self.textview.selectedRange = cursorPosition;
[tf release];

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