Append to NSTextView and scroll - objective-c

Question

OK, what I need should have been very simple. However, I've looked everywhere and I'm not sure I've found something that works 100% (and it's something that has troubled me in the past too).
So, here we are :
I want to be able to append to an NSTextView
After appending, the NSTextView should scroll down (so that that latest appended contents are visible)
Rather straightforward, huh?
So... any ideas? (A code example that performs exactly this simple "trick" would be more than ideal...)

Answer 1

After cross-referencing several answers and sources (with some tweaks), here's the answer that does work (given _myTextView is an NSTextView outlet) :
- (void)appendToMyTextView:(NSString*)text
{
dispatch_async(dispatch_get_main_queue(), ^{
NSAttributedString* attr = [[NSAttributedString alloc] initWithString:text];
[[_myTextView textStorage] appendAttributedString:attr];
[_myTextView scrollRangeToVisible:NSMakeRange([[_myTextView string] length], 0)];
});
}

Answer 2

The appendAttributedString and scrollToEndOfDocument are available starting in OS X 10.0 and 10.6 respectively
extension NSTextView {
func append(string: String) {
self.textStorage?.appendAttributedString(NSAttributedString(string: string))
self.scrollToEndOfDocument(nil)
}
}

Answer 3

Simply use this way :
for (NSInteger i=1; i<=100; i++) {
[self.textView setString:[NSString stringWithFormat:#"%#\n%#",[self.textView string],#(i)]];
}
[self.textView scrollRangeToVisible:NSMakeRange([[self.textView string] length], 0)];

Answer 4

Here's a Swift version of Anoop Vaidya's answer
extension NSTextView {
func append(string: String) {
let oldString = self.string == nil ? "" : self.string!
let newString = NSString(format: "%#%#", oldString, string)
self.string = newString
}
}

Answer 5

Here's a Swiftier solution:
extension NSTextView {
func appendString(string:String) {
self.string! += string
self.scrollRangeToVisible(NSRange(location:countElements(self.string!), length: 0))
}
}