How do I find the first URL in a UITextView?
I have a UITextView implemented as:
let textView = UITextView()
textView.isEditable = false
textView.dataDetectorTypes = .link
I know that setting the data detector type to link means that the text view will automatically find links, highlight them, and hyperlink them (make them tappable).
What I am trying to figure out is how to know whether or not the UITextView found at least one URL, and do something with that first URL programmatically. I've considered using regex to try to find common URL formats, but I'd like consistency with the way Apple does the detection.
Is there a way to extract the URL from attributedText, or is there an even simpler way to do it?
I think it could be done with something like this:
textView.attributedText.attribute(.link, at: 0, effectiveRange: 0..textView.text.count)
ios swift
asked Nov 23 at 7:52
ChrisRockGM
132219
add a comment |
I have a UITextView implemented as:
let textView = UITextView()
textView.isEditable = false
textView.dataDetectorTypes = .link
I know that setting the data detector type to link means that the text view will automatically find links, highlight them, and hyperlink them (make them tappable).
What I am trying to figure out is how to know whether or not the UITextView found at least one URL, and do something with that first URL programmatically. I've considered using regex to try to find common URL formats, but I'd like consistency with the way Apple does the detection.
Is there a way to extract the URL from attributedText, or is there an even simpler way to do it?
I think it could be done with something like this:
textView.attributedText.attribute(.link, at: 0, effectiveRange: 0..textView.text.count)
ios swift
asked Nov 23 at 7:52
ChrisRockGM
132219
add a comment |
I have a UITextView implemented as:
let textView = UITextView()
textView.isEditable = false
textView.dataDetectorTypes = .link
I know that setting the data detector type to link means that the text view will automatically find links, highlight them, and hyperlink them (make them tappable).
What I am trying to figure out is how to know whether or not the UITextView found at least one URL, and do something with that first URL programmatically. I've considered using regex to try to find common URL formats, but I'd like consistency with the way Apple does the detection.
Is there a way to extract the URL from attributedText, or is there an even simpler way to do it?
I think it could be done with something like this:
textView.attributedText.attribute(.link, at: 0, effectiveRange: 0..textView.text.count)
ios swift
asked Nov 23 at 7:52
ChrisRockGM
132219
I have a UITextView implemented as:
let textView = UITextView()
textView.isEditable = false
textView.dataDetectorTypes = .link
I know that setting the data detector type to link means that the text view will automatically find links, highlight them, and hyperlink them (make them tappable).
What I am trying to figure out is how to know whether or not the UITextView found at least one URL, and do something with that first URL programmatically. I've considered using regex to try to find common URL formats, but I'd like consistency with the way Apple does the detection.
Is there a way to extract the URL from attributedText, or is there an even simpler way to do it?
I think it could be done with something like this:
textView.attributedText.attribute(.link, at: 0, effectiveRange: 0..textView.text.count)
ios swift
ios swift
asked Nov 23 at 7:52
ChrisRockGM
132219
asked Nov 23 at 7:52
ChrisRockGM
132219
asked Nov 23 at 7:52
ChrisRockGM
132219
asked Nov 23 at 7:52
ChrisRockGM
132219
asked Nov 23 at 7:52
ChrisRockGM
132219
132219
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You can use NSDataDetector like follows:
let text = "I usually search stuff on stackoverflow.com to find answers"
if let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue) {
let matches = detector.matches(in: text, options: , range: NSRange(location: 0, length: text.utf16.count))
for match in matches {
guard let range = Range(match.range, in: text) else { continue }
let url = text[range]
print(url) // > stackoverflow.com
// Here is the place where you can count your URLs or do whatever you want with it
}
}
NB:
- Sample provided in Swift 4
- It might affect performance in case of long text
- This code wasn't tested with emoji and complex graphemes, so you should probably do it.
Read more in Official NSDataDetector docs
answered Nov 23 at 8:02
fewlinesofcode
2,024518
My testing shows that this works withtext.countinstead oftext.utf16.count. It works with emojis.
– ChrisRockGM
Nov 23 at 20:45
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can use NSDataDetector like follows:
let text = "I usually search stuff on stackoverflow.com to find answers"
if let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue) {
let matches = detector.matches(in: text, options: , range: NSRange(location: 0, length: text.utf16.count))
for match in matches {
guard let range = Range(match.range, in: text) else { continue }
let url = text[range]
print(url) // > stackoverflow.com
// Here is the place where you can count your URLs or do whatever you want with it
}
}
NB:
- Sample provided in Swift 4
- It might affect performance in case of long text
- This code wasn't tested with emoji and complex graphemes, so you should probably do it.
Read more in Official NSDataDetector docs
answered Nov 23 at 8:02
fewlinesofcode
2,024518
My testing shows that this works withtext.countinstead oftext.utf16.count. It works with emojis.
– ChrisRockGM
Nov 23 at 20:45
add a comment |
You can use NSDataDetector like follows:
let text = "I usually search stuff on stackoverflow.com to find answers"
if let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue) {
let matches = detector.matches(in: text, options: , range: NSRange(location: 0, length: text.utf16.count))
for match in matches {
guard let range = Range(match.range, in: text) else { continue }
let url = text[range]
print(url) // > stackoverflow.com
// Here is the place where you can count your URLs or do whatever you want with it
}
}
NB:
- Sample provided in Swift 4
- It might affect performance in case of long text
- This code wasn't tested with emoji and complex graphemes, so you should probably do it.
Read more in Official NSDataDetector docs
answered Nov 23 at 8:02
fewlinesofcode
2,024518
My testing shows that this works withtext.countinstead oftext.utf16.count. It works with emojis.
– ChrisRockGM
Nov 23 at 20:45
add a comment |
You can use NSDataDetector like follows:
let text = "I usually search stuff on stackoverflow.com to find answers"
if let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue) {
let matches = detector.matches(in: text, options: , range: NSRange(location: 0, length: text.utf16.count))
for match in matches {
guard let range = Range(match.range, in: text) else { continue }
let url = text[range]
print(url) // > stackoverflow.com
// Here is the place where you can count your URLs or do whatever you want with it
}
}
NB:
- Sample provided in Swift 4
- It might affect performance in case of long text
- This code wasn't tested with emoji and complex graphemes, so you should probably do it.
Read more in Official NSDataDetector docs
answered Nov 23 at 8:02
fewlinesofcode
2,024518
You can use NSDataDetector like follows:
let text = "I usually search stuff on stackoverflow.com to find answers"
if let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue) {
let matches = detector.matches(in: text, options: , range: NSRange(location: 0, length: text.utf16.count))
for match in matches {
guard let range = Range(match.range, in: text) else { continue }
let url = text[range]
print(url) // > stackoverflow.com
// Here is the place where you can count your URLs or do whatever you want with it
}
}
NB:
- Sample provided in Swift 4
- It might affect performance in case of long text
- This code wasn't tested with emoji and complex graphemes, so you should probably do it.
Read more in Official NSDataDetector docs
answered Nov 23 at 8:02
fewlinesofcode
2,024518
edited Nov 23 at 8:08
answered Nov 23 at 8:02
fewlinesofcode
2,024518
answered Nov 23 at 8:02
fewlinesofcode
2,024518
answered Nov 23 at 8:02
fewlinesofcode
2,024518
2,024518
My testing shows that this works withtext.countinstead oftext.utf16.count. It works with emojis.
– ChrisRockGM
Nov 23 at 20:45
add a comment |
My testing shows that this works withtext.countinstead oftext.utf16.count. It works with emojis.
– ChrisRockGM
Nov 23 at 20:45
My testing shows that this works with
text.count instead of text.utf16.count. It works with emojis.– ChrisRockGM
Nov 23 at 20:45
My testing shows that this works with
text.count instead of text.utf16.count. It works with emojis.– ChrisRockGM
Nov 23 at 20:45
add a comment |
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