When the enter key is pressed on the keyboard display some text - objective-c

Question

This is what I want the app to do.
Tap in a "Text View" not a "Text Field", then the keyboard is displayed and a bullet point ("\u2022") pops up. You type your sentence, and when you hit return it makes a new bullet.
So essentially, you have a Text View that is a bulleted list. Much like Word, where you start a bullet and when you hit return it make a new bullet for you, so you can start typing on that line.
How do I do this?
This is what worked for any other stupid noobs like me:
I put this into my .m file
-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
if([text isEqualToString:#"\n"])
{
NSString *modifiedString = [myTextView.text stringByAppendingString:#"\n\u2022"];
[myTextView setText:modifiedString];
return NO;
}
return YES;
}
I put this into my .h file
#interface CRHViewController3 : UIViewController <UITextViewDelegate> {
__weak IBOutlet UITextView *myTextView;
}
and then I put this under my viewDidLoad
- (void)viewDidLoad
{
[super viewDidLoad];
[myTextView setDelegate:self];
}

Answer 1

Try out this.
(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
if([text isEqualToString:"\n"])
{
NSString *modifiedString = [textView.text stringByAppendingString:#"\n\u2022"];
[textView setText:modifiedString];
return NO;
}
return YES;
}

Answer 2

The method -(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text would be called for each letter entered on deleted.
So in this method you could try to replace all line breaks with bullet char.
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
...
textView.text = [textView.text stringByReplacingOccurrencesOfString:#"\\n" withString:#"\u2022"];
...
}

Answer 3

To use this code:
(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
if([text isEqualToString:"\n"])
{
NSString *modifiedString = [textView.text stringByAppendingString:#"\n\u2022"];
[textView setText:modifiedString];
return NO;
}
return YES;
}
Your header file must look like this:
#interface MyViewController : UIViewController <UITextViewDelegate> {
//instance variables in here
}