custom iPhone backspace and enter buttons.

Question

Hi dear ,i have problem with the custom backspace and enter buttons on custom iPhone keyboard ,

The Backspace : my codes just remove characters at the end of the line not from the cursor location .

if ([textView.text length]>0) textView.text = [textView.text substringToIndex:([textView.text length]-1)];

and read this question http://stackoverflow.com/questions/2536691/custom-keyboard-iphone-having-problem-with-backspace-button-in-uitextview but didn't solve my problem .

The Enter : i have same problem like backspace the enter button just the inserts new line at the end of sentence not not from the cursor location .

textView.text = [NSString stringWithFormat:@"%@\n", textView.text];

how should i change my codes to work fine ? thank you

EDIT : //BACKSPACE BUTTON CODE :

NSRange deleteRange = textPad.selectedRange;
deleteRange.length -= 1;
if ([textPad.text length]>0) textPad.text = [textPad.text stringByReplacingCharactersInRange:deleteRange withString:@""];

Answer 1

You can use the UITextView selectedRange method to determine the beginning and end of the selected text, and delete from that range instead of from the end of the string.

Answer 2

textView.text = [textView.text stringByReplacingCharactersInRange:textview.selectedRange withString:@"\n"]; // Replace the selected characters with a new line

or

textView.text = [textView.text stringByReplacingCharactersInRange:textview.selectedRange withString:@""]; // Delete the selected character

Answer 3

here is the best iphone custom backspace code :D :

  NSRange deleteRange = textPad.selectedRange;

        if (deleteRange.length >0)
        textPad.text = [textPad.text stringByReplacingCharactersInRange:deleteRange withString:@""];


        else

            if (deleteRange.location > 0)
            textPad.text =  [textPad.text  stringByReplacingCharactersInRange:NSMakeRange(deleteRange.location-1,1) 
 withString:@""];

deleteRange.location--;
deleteRange.length = 0;
textPad.selectedRange = deleteRange;