Objective-c Code to get word from a UITextView

objectivecMethod.m

-(NSString *)getWordAtPosition:(CGPoint)pos inTextView:(UITextView*)_tv
{
    UITextView *tempTextview = [[UITextView alloc]init];
    tempTextview.text = temmp;
    //eliminate scroll offset
    pos.y += _tv.contentOffset.y;
    
    //get location in text from textposition at point
    UITextPosition *tapPos = [_tv closestPositionToPoint:pos];
    
    //fetch the word at this position (or nil, if not available)
    UITextRange * wr = [_tv.tokenizer rangeEnclosingPosition:tapPos withGranularity:UITextGranularityWord inDirection:UITextLayoutDirectionRight];
    UITextPosition* beginningForTV = _tv.beginningOfDocument;
    
    UITextPosition* selectionStart = wr.start;
    UITextPosition* selectionEnd = wr.end;
    UITextPosition *beginning;
    UITextPosition *start;
    UITextPosition *end;
    UITextRange *textRange;
    NSInteger location = [_tv offsetFromPosition:beginningForTV toPosition:selectionStart];
    NSInteger length = [_tv offsetFromPosition:selectionStart toPosition:selectionEnd];
    NSRange tter = NSMakeRange(location, length);
    if (tter.length != 0) {
        for (int i=0; i<hotwordsRanges.count; i++) {
            NSValue *val = [hotwordsRanges objectAtIndex:i];
            NSRange range = [val rangeValue];
            int total =  range.location+range.length;
            if (total >= tter.location) {
                beginning = tempTextview.beginningOfDocument;
                start = [tempTextview positionFromPosition:beginning offset:range.location];
                end = [tempTextview positionFromPosition:start offset:range.length];
                textRange = [tempTextview textRangeFromPosition:start toPosition:end];
                //                NSMutableAttributedString * string = [[NSMutableAttributedString alloc]initWithString:self.textViewTag.text];
                //                [string addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:range];
                //                self.textViewTag.attributedText = string;
                //                NSString *param = nil;
                //                if (range.location != NSNotFound)
                //                {
                //                    param = [temmp substringFromIndex:range.location + range.length];
                //
                //                    NSRange end = [param rangeOfString:@"%"];
                //                    //                    NSMutableAttributedString * string = [[NSMutableAttributedString alloc]initWithString:self.textViewTag.text];
                //                    //                    [string addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:range];
                //                    //                    self.textViewTag.attributedText = string;
                //                    if (end.location != NSNotFound)
                //                    {
                //                        param = [param substringToIndex:end.location];
                //                    }
                //                }
                
                return [tempTextview textInRange:textRange];
                break;
            }
        }
        return[tempTextview textInRange:textRange];
    }
    return [_tv textInRange:wr];
}


// the textview will be the view triggering the gesture action
// the location will be th point of gesture action . Can get from : 
// gestureSender.location(inView:) method