My solution requires the use of a UITextView (which is significantly easier, and I urge that you use it instead).
Swift
class ViewController: UIViewController {
@IBOutlet weak var textView:UITextView!;
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let gestureRecognizer = UITapGestureRecognizer(target: self, action: "textViewTapped:");
gestureRecognizer.numberOfTapsRequired = 1;
gestureRecognizer.numberOfTouchesRequired = 1;
self.textView.addGestureRecognizer(gestureRecognizer);
}
func textViewTapped(sender: UITapGestureRecognizer) {
let wordTarget = "here";
let word = UITextView.getWordAtPosition(sender.locationInView(self.textView), textView: self.textView);
if word == wordTarget {
let plainString = self.textView.attributedText.string;
let substrings = NSMutableArray();
let scanner = NSScanner(string: plainString);
scanner.scanUpToString("#", intoString: nil);
while !scanner.atEnd {
var substring:NSString? = nil;
scanner.scanString("#", intoString: nil);
let space = " ";
if scanner.scanUpToString(space, intoString: &substring) {
// If the space immediately followed the #, this will be skipped
substrings.addObject(substring!);
}
scanner.scanUpToString("#", intoString: nil);
//Scan all characters before next #
}
println(substrings.description);
//Now you got your substrings in an array, so use those for your data passing (in a segue maybe?)
...
}
}
}
extension UITextView {
class func getWordAtPosition(position: CGPoint!, textView: UITextView!) -> String? {
//Remove scrolloffset
let correctedPoint = CGPointMake(position.x, textView.contentOffset.y + position.y);
//Get location in text from uitextposition at a certian point
let tapPosition = textView.closestPositionToPoint(correctedPoint);
//Get word at the position, will return nil if its empty.
let wordRange = textView.tokenizer.rangeEnclosingPosition(tapPosition, withGranularity: UITextGranularity.Word, inDirection: UITextLayoutDirection.Right.rawValue);
return textView.textInRange(wordRange!);
}
}
Objective-C
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(textViewTapped:)];
gestureRecognizer.numberOfTouchesRequired = 1;
gestureRecognizer.numberOfTapsRequired = 1;
[self.textView addGestureRecognizer:gestureRecognizer];
}
- (void)textViewTapped:(UITapGestureRecognizer *)sender {
NSString *wordTarget = @"here";
NSString* word = [self getWordAtPosition:[sender locationInView:self.textView] textView:self.textView];
if ([word isEqualToString:wordTarget]) {
NSString *plainString = self.textView.attributedText.string;
NSMutableArray* substrings = [[NSMutableArray alloc]init];
NSScanner *scanner = [[NSScanner alloc]initWithString:plainString];
[scanner scanUpToString:@"#" intoString:nil];
while (![scanner isAtEnd]) {
NSString* substring = nil;
[scanner scanString:@"#" intoString:nil];
NSString* space = @" ";
if ([scanner scanUpToString:space intoString:&substring]) {
[substrings addObject:substring];
}
[scanner scanUpToString:@"#" intoString:nil];
}
//Now you got your substrings in an array, so use those for your data passing (in a segue maybe?)
...
}
}
- (NSString*)getWordAtPosition:(CGPoint)position textView:(UITextView *)textView {
//remove scrollOffset
CGPoint correctedPoint = CGPointMake(position.x, textView.contentOffset.y + position.y);
UITextPosition *tapPosition = [textView closestPositionToPoint:correctedPoint];
UITextRange *wordRange = [textView.tokenizer rangeEnclosingPosition:tapPosition withGranularity:UITextGranularityWord inDirection:UITextLayoutDirectionRight];
return [textView textInRange:wordRange];
}
Basically you need to add a gesture recognizer to get the tap point in your textview. Then, you get the word using the category method provided in the extension area. After, you check what the word is (where we want the word "here"). Then, we collect the hashtags you have provided.
All you have to do is add a performSegueWithIdentifier method, and pass it accordingly.
