ikju

func specificRangeRemove(str : String) -> String
{
    var s : String = str
    
    
    let range = s.index(s.startIndex, offsetBy: 8)..<s.endIndex
    s.removeSubrange(range)
    
    return s
}

ikju

이때까지 소셜로그인 하면,

AppDelegate 에, 이것저것 설정해 두었었다.

 

근데 iOS13 에서, 아무리 해도, 카카오 로그인 핸들러가 안불러지는것이다. 

알고보니,

ikju

    //UIActivityIndicatorView 변수 선언 하고 사용하는 방법
    
    
    lazy var activityIndicator: UIActivityIndicatorView = {
        // Create an indicator.
        let activityIndicator = UIActivityIndicatorView()
        activityIndicator.frame = CGRect(x: 0, y: 0, width: 50, height: 50)
        activityIndicator.center = self.view.center
        

ikju

==========================================================================================================
If you already know the longest word you have to get the range of that word in the string.
I prefer the NSString method rangeOfString: for this.

You then create a NSMutableAttributedString from the string, with your default attributes. 
Finally you apply highlighting attributes to the range you figured out earlier.
==========================================================================================================

let longString = "Lorem ipsum dolor. VeryLongWord ipsum foobar"
let longestWord = "VeryLongWord"

ikju

    //변수 선언
    private var refresh_control = UIRefreshControl()

    // refreshControl 설정하기
    private func refreshControl()
    {
      if #available(iOS 10.0, *)
      {
        home_collectionview.refreshControl = refresh_control
      } else {

ikju

func doStringContainsNumber(string : String) -> Bool{
    
    let numberRegEx  = "^(?:|0|[1-9]\\d*)(?:\\.\\d*)?$"
    let testCase = NSPredicate(format:"SELF MATCHES %@", numberRegEx)
    let containsNumber = testCase.evaluate(with: string)
    
    return containsNumber
}
print(doStringContainsNumber(string: "135-15"))
//false

ikju

func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAtIndex section: Int) -> UIEdgeInsets {

    let totalCellWidth = CellWidth * CellCount
    let totalSpacingWidth = CellSpacing * (CellCount - 1)

    let leftInset = (collectionViewWidth - CGFloat(totalCellWidth + totalSpacingWidth)) / 2
    let rightInset = leftInset

    return UIEdgeInsets(top: 0, left: leftInset, bottom: 0, right: rightInset)
}

ikju

self.collectionView.reloadData()
self.collectionView.performBatchUpdates(nil, completion: {
    (result) in
    // ready reloadData가 실행되고 delegate 함수의 cellItemAt이 완료되면 이부분이 실행됩니다.
})

ikju

func textFieldDoneBtnMake(text_field : UITextField)
    {//텍스트 입력할시 키보드 위에 done 기능 구현
        let ViewForDoneButtonOnKeyboard = UIToolbar()
        ViewForDoneButtonOnKeyboard.translatesAutoresizingMaskIntoConstraints = false
        ViewForDoneButtonOnKeyboard.sizeToFit()
        ViewForDoneButtonOnKeyboard.tintColor = .black
        let btnDoneOnKeyboard = UIBarButtonItem(title: "Done", style: .plain, target: self, action: #selector(self.doneBtnFromKeyboardClicked))
        ViewForDoneButtonOnKeyboard.items = [btnDoneOnKeyboard]
        text_field.inputAccessoryView = ViewForDoneButtonOnKeyboard
        

ikju

let parameters : Parameters = ["id" : "아이디","password" : "비밀번호"]

// json에서 key값 설정
struct userlist: Codable {
            
        var email : String
        var result : String
        
    }