1. Set Multiple navbars with extension

- Extension

extension UIViewController {
    func setupNavigationBarRightItems(items: UIBarButtonItem...) {
        self.navigationItem.rightBarButtonItems = items
    }
}

- How to use code

    func setNavigationItem() {
        let first = UIBarButtonItem(image: #imageLiteral(resourceName: "ic_GoldCoin"), style: .plain, target: self, action: #selector(navItemFirst))
        let second = UIBarButtonItem(image: #imageLiteral(resourceName: "ic_Mystery"), style: .plain, target: self, action: #selector(navItemSecond))

        self.setupNavigationBarRightItems(items: first, second)
    }
    
    @objc func navItemFirst() {
        print("Action Here")
    }
    
    @objc func navItemSecond() {
        print("Action Here")
    }

2 .  Firebase dynamic links error in pod file FIRDynamicLinks.m

Firebase dynamic links diagnosticString have an error in

ERROR: UIApplication delegate %@ does not implements selector "
ERROR: Specified custom URL scheme is %@ but Info.plist do "
Describe environment:

Xcode version: 11.3.1

Firebase SDK version: 6.18.0

Firebase Component: Dynamic link

Component version: 4.0.7

Installation method: `CocoaPods

Error in firebase dynamic link file "FIRDynamicLinks.m" If I ran Project success but in build jenkins is error because pod firebase dynamicLiks an error




My friend help to solve this error remove  nERRORTAG.
from file .xcodeproj in line sheelscript


3. After pull from master and build project xib 'invalid element name'

Error screenshot



- check error -> open file xib with sourecode



- and found conflict in here, and fixing this code





4. Multiple commands produce


Multiple commands produce '/Users/Library/Developer/Xcode/DerivedData/Project-ccinzvugeclpcufoplddugllxter/Build/Products/Production-iphoneos/Project.swiftmodule/arm64-apple-ios.swiftdoc':
1) Target 'project' (project 'project'): Ditto /Users/Library/Developer/Xcode/DerivedData/project-ccinzvugeclpcufoplddugllxter/Build/Products/Production-iphoneos/project.swiftmodule/arm64-apple-ios.swiftdoc /Users/Library/Developer/Xcode/DerivedData/project-ccinzvugeclpcufoplddugllxter/...../project.swiftdoc

2) Target 'project' (project 'project'): Ditto /Users/Library/Developer/Xcode/DerivedData/project-ccinzvugeclpcufoplddugllxter/Build/Products/Production-iphoneos/project.swiftmodule/arm64-apple-ios.swiftdoc /Users/Library/Developer/Xcode/DerivedData/project-ccinzvugeclpcufoplddugllxter/Build/....../arm64-apple-ios.swiftmodule


How to fixing:



Source: https://stackoverflow.com/questions/55856786/error-multiple-commands-produce-x86-64-swiftmodule


5. Fixing Clickable UITextView

Just select the UITextView in your storyboard and go to "Show Attributes inspector" and select selectable and links. As the image below shows. Make sure Editable is unchecked.



enter image description here https://stackoverflow.com/a/34425135/8366535


6. Count Line Breaks

This example how to count line break with data string

        // Count - line breaks
        let base = "Hello, playground\r\nhere too\r\nGalahad\r\n\n i"
        let ns = base as NSString
        var intArr = [Any]()
        ns.enumerateLines { (str, _) in
            intArr.append(str)
            print(str)
        }
        
        print(intArr.count)

Source:  https://stackoverflow.com/a/46491196/8366535

7. Filter Link in tap gesture TextView 

you want to deference tap url or navigation in one tap gesture check this handle
this example use by sentence.

 @objc func tappedTextView(tapGesture: UIGestureRecognizer) {

        let location: CGPoint = tapGesture.location(in: textViewQuotes)
        let position: CGPoint = CGPoint(x: location.x, y: location.y)
        let tapPosition: UITextPosition = textViewQuotes.closestPosition(to: position)!
        guard let textRange: UITextRange = textViewQuotes.tokenizer.rangeEnclosingPosition(tapPosition, with: UITextGranularity.sentence, inDirection: UITextDirection(rawValue: 1)) else {return}

        let tappedWord: String = textViewQuotes.text(in: textRange) ?? ""
        let verifyURL = self.verifyUrl(urlString: "Test with the URL http://scripttes.blogspot.com/ \n check.)
        if verifyURL == true {
            if let url = URL(string: tappedWord.filterUrl()) {
                UIApplication.shared.open(url)
            }
        } else {
            print("navigation controller")
        }
    }

////

    func verifyUrl (urlString: String?) -> Bool {
        if let input = urlString {
            let url = input.filterUrl()
            if let url = NSURL(string: String(url)) {
                return UIApplication.shared.canOpenURL(url as URL)
            }
        }
        return false
    }


/////

extension String {
    func filterUrl() -> String {
        var str: String = ""
        let detector = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)
        let matches = detector.matches(in: self, options: [], range: NSRange(location: 0, length: self.utf16.count))
        for match in matches {
            guard let range = Range(match.range, in: self) else { continue }
            let urlStr = self[range]
            str = String(urlStr)
        }
        
        return str
    }
}

8. Extension UIViewController pushViewController with completion 

This example use storyBoard as navigation

extension UIViewController {

   func pushViewControllerOfType<T: Navigatable>(viewControllerType: T.Type, completion: (T) -> Void) {
        let viewController = T.instantiateFromStoryboard()
        if let view = viewController as? UIViewController {
            self.navigationController?.pushViewController(view, animated: true)
        }
        completion(viewController)
    }

}

9. Regex Check Email

extension String {
    func handleCheckEmail() -> Bool {
        let regEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,6}"
        let test = NSPredicate(format: "SELF MATCHES%@", regEx)
        return test.evaluate(with: self)
    }
}