[FEAT][#7] 출석코드입력란 기능 구현

Nexters · Feb 11, 2023 · 46106db · 46106db
1 parent 23bab8f
commit 46106db
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Showing 4 changed files with 133 additions and 7 deletions.
diff --git a/Extensions/Collection+Extension.swift b/Extensions/Collection+Extension.swift
@@ -0,0 +1,14 @@
+//
+//  Collection+Extension.swift
+//  momoIOS
+//
+//  Created by 임수현 on 2023/02/11.
+//
+
+import Foundation
+
+extension Collection {
+    subscript (safe index: Index) -> Element? {
+        return indices.contains(index) ? self[index] : nil
+    }
+}
diff --git a/Extensions/String+Extension.swift b/Extensions/String+Extension.swift
@@ -0,0 +1,40 @@
+//
+//  String+Extension.swift
+//  momoIOS
+//
+//  Created by 임수현 on 2023/02/11.
+//
+
+import Foundation
+
+extension String {
+    subscript (safe index: Int) -> String? {
+        guard self.count > index else { return nil }
+        let index = self.index(self.startIndex, offsetBy: index)
+        return "\(self[index])"
+    }
+
+    subscript (range: Range<Int>) -> String? {
+        let fromIndex = self.index(self.startIndex, offsetBy: max(0, range.lowerBound))
+        let toIndex = self.index(self.startIndex, offsetBy: min(range.upperBound, self.count))
+        return String(self[fromIndex..<toIndex])
+    }
+
+    subscript(_ range: Range<Int>) -> String {
+        let fromIndex = self.index(self.startIndex, offsetBy: range.startIndex)
+        let toIndex = self.index(self.startIndex, offsetBy: range.endIndex)
+        return String(self[fromIndex..<toIndex])
+    }
+
+    func replaced(_ string: String, in range: NSRange) -> String? {
+        guard let range = Range(range, in: self) else { return nil }
+        return self.replacingCharacters(in: range, with: string)
+    }
+
+    var isBackspace: Bool {
+        if let char = self.cString(using: String.Encoding.utf8) {
+            return strcmp(char, "\\b") == -92
+        }
+        return false
+    }
+}
diff --git a/momoIOS.xcodeproj/project.pbxproj b/momoIOS.xcodeproj/project.pbxproj
@@ -12,6 +12,8 @@
 		3A75FC10298827BE00B36A46 /* MainAttendanceCodeCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3A75FC0F298827BE00B36A46 /* MainAttendanceCodeCell.swift */; };
 		3AA713C929884007006F922F /* MainAttendanceDoneCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AA713C829884007006F922F /* MainAttendanceDoneCell.swift */; };
 		3AA713D1298946FF006F922F /* UIColor+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AA713D0298946FF006F922F /* UIColor+Extension.swift */; };
+		3ABBF7362996B6C9004D4D0B /* String+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3ABBF7352996B6C9004D4D0B /* String+Extension.swift */; };
+		3ABBF73A2996B8C9004D4D0B /* Collection+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3ABBF7392996B8C9004D4D0B /* Collection+Extension.swift */; };
 		3ADF66102993F48A00577028 /* AttendanceDetailViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3ADF660F2993F48A00577028 /* AttendanceDetailViewController.swift */; };
 		BF0408632987B3AA00F1129B /* LoginController.swift in Sources */ = {isa = PBXBuildFile; fileRef = BF0408622987B3AA00F1129B /* LoginController.swift */; };
 		BF04086B2987E34800F1129B /* AuthCommonConstants.swift in Sources */ = {isa = PBXBuildFile; fileRef = BF04086A2987E34800F1129B /* AuthCommonConstants.swift */; };
@@ -45,6 +47,8 @@
 		3A75FC0F298827BE00B36A46 /* MainAttendanceCodeCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainAttendanceCodeCell.swift; sourceTree = "<group>"; };
 		3AA713C829884007006F922F /* MainAttendanceDoneCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainAttendanceDoneCell.swift; sourceTree = "<group>"; };
 		3AA713D0298946FF006F922F /* UIColor+Extension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIColor+Extension.swift"; sourceTree = "<group>"; };
+		3ABBF7352996B6C9004D4D0B /* String+Extension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "String+Extension.swift"; sourceTree = "<group>"; };
+		3ABBF7392996B8C9004D4D0B /* Collection+Extension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Collection+Extension.swift"; sourceTree = "<group>"; };
 		3ADF660F2993F48A00577028 /* AttendanceDetailViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AttendanceDetailViewController.swift; sourceTree = "<group>"; };
 		BF0408622987B3AA00F1129B /* LoginController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LoginController.swift; sourceTree = "<group>"; };
 		BF04086A2987E34800F1129B /* AuthCommonConstants.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AuthCommonConstants.swift; sourceTree = "<group>"; };
@@ -174,6 +178,8 @@
 			children = (
 				E8207931298A163400B36FC9 /* UIView+Extension.swift */,
 				BFB8431E298CFF9200BA11EC /* UIStackView+Extension.swift */,
+				3ABBF7352996B6C9004D4D0B /* String+Extension.swift */,
+				3ABBF7392996B8C9004D4D0B /* Collection+Extension.swift */,
 			);
 			path = Extensions;
 			sourceTree = "<group>";
@@ -332,6 +338,7 @@
 				BF6EC77F298D1B2E00F4B170 /* AttendanceResultCell.swift in Sources */,
 				BF04086B2987E34800F1129B /* AuthCommonConstants.swift in Sources */,
 				3A5AC31029898B330080323A /* UIButton+Extension.swift in Sources */,
+				3ABBF7362996B6C9004D4D0B /* String+Extension.swift in Sources */,
 				3ADF66102993F48A00577028 /* AttendanceDetailViewController.swift in Sources */,
 				E8207934298A22D000B36FC9 /* MainSessionInfoCell.swift in Sources */,
 				E8207932298A163400B36FC9 /* UIView+Extension.swift in Sources */,
@@ -342,6 +349,7 @@
 				3AA713D1298946FF006F922F /* UIColor+Extension.swift in Sources */,
 				3AA713C929884007006F922F /* MainAttendanceDoneCell.swift in Sources */,
 				E820792F298A138500B36FC9 /* MainSessionAbsentCell.swift in Sources */,
+				3ABBF73A2996B8C9004D4D0B /* Collection+Extension.swift in Sources */,
 				BF4310FA298C525900270DBF /* AttendanceHistoryCell.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

diff --git a/momoIOS/AttendanceDetail/ViewController/AttendanceDetailViewController.swift b/momoIOS/AttendanceDetail/ViewController/AttendanceDetailViewController.swift
@@ -74,8 +74,7 @@ class AttendanceDetailViewController: UIViewController {
             textField.textColor = .white
             textField.font = .systemFont(ofSize: 32, weight: .medium)
             textField.keyboardType = .numberPad
-//            textField.delegate = self
-//            textField.dataSource = self
+            textField.delegate = self
         }
 
         self.descriptionLabel.text = "운영진이 공지해준 출석체크 코드를 입력해주세요!"
@@ -139,8 +138,51 @@ class AttendanceDetailViewController: UIViewController {
             make.height.equalTo(54)
         }
     }
+}
+
+// MARK: - UITextFieldDelegate
+extension AttendanceDetailViewController: UITextFieldDelegate {
+    func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
+        let currentText = textField.text ?? ""
+        let newText = range.lowerBound == 0 ? string : currentText.replaced(string, in: range) ?? ""
+
+        if newText.count == 0 {
+            textField.text = newText
+            self.prevTextField(textField)?.becomeFirstResponder()
+        } else {
+            self.fillTextField(textField, with: newText)
+        }
+        return false
+    }
+
+    // MARK: - TextField Values
+    private var isEditingCode: Bool {
+        for textField in self.codeTextFields where textField.isEditing == true {
+            return true
+        }
+        return false
+    }
+
+    private func textFieldIndex(of textField: UITextField) -> Int? {
+        for index in 0..<self.codeTextFields.count {
+            if textField == self.codeTextFields[index] {
+                return index
+            }
+        }
+        return nil
+    }
 
-    // MARK: - Actions
+    private func prevTextField(_ textField: UITextField) -> UITextField? {
+        guard let index = self.textFieldIndex(of: textField) else { return nil }
+        return self.codeTextFields[safe: index - 1]
+    }
+
+    private func nextTextField(_ textField: UITextField) -> UITextField? {
+        guard let index = self.textFieldIndex(of: textField) else { return nil }
+        return self.codeTextFields[safe: index + 1]
+    }
+
+    // MARK: - TextField Actions
     @objc func keyboardWillShow(_ notification: NSNotification) {
         if self.isEditingCode {
             self.attendButton.moveWithKeyboard(
@@ -159,9 +201,31 @@ class AttendanceDetailViewController: UIViewController {
         )
     }
 
-    // MARK: - Logics
-    private var isEditingCode: Bool {
-        let textFileds = self.codeTextFields
-        return textFileds[0].isEditing || textFileds[1].isEditing || textFileds[2].isEditing || textFileds[3].isEditing
+    private func fillTextField(_ textField: UITextField, with string: String) {
+        let string = string.trimmingCharacters(in: CharacterSet(charactersIn: "0123456789.").inverted)
+        guard !string.isEmpty else { return }
+        textField.text = string[safe: 0]
+
+        guard let nextTextField = self.nextTextField(textField) else { return }
+        nextTextField.becomeFirstResponder()
+        if nextTextField.text?.isEmpty == false {
+            self.setCursor(of: nextTextField, at: 0)
+        }
+        self.fillTextField(nextTextField, with: string[1..<string.count])
+    }
+
+    private func clearTextField(after textField: UITextField) {
+        guard let index = self.textFieldIndex(of: textField) else { return }
+        let nextIndex: Int = index + 1
+        let totalCount = self.codeTextFields.count
+
+        for index in nextIndex..<totalCount {
+            self.codeTextFields[safe: index]?.text = ""
+        }
+    }
+
+    private func setCursor(of textField: UITextField, at position: Int) {
+        let position = textField.position(from: textField.beginningOfDocument, offset: position)!
+        textField.selectedTextRange = textField.textRange(from: position, to: position)
     }
 }