編集履歴

質問編集履歴

コードの追加

2017/03/10 09:01

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@@ -18,6 +18,464 @@
+//編集・追加
+```swift
+import UIKit
+class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
+  @IBOutlet weak var tableView: UITableView!
+  var sectionTitleArray = [String]()
+  var dataArray1 = ["add Row"]
+  var dataArrayGroup: [[DataModel]] = []
+  override func viewDidLoad() {
+    super.viewDidLoad()
+    tableView.estimatedRowHeight = 44
+    tableView.rowHeight = UITableViewAutomaticDimension
+    tableView.tableFooterView  = UIView()
+  }
+  @IBAction func addSection(_ sender: UIButton) {
+    let alert = UIAlertController(title:"Sction追加",
+                                  message: "SectionTitleを入力してください",
+                                  preferredStyle: .alert)
+    let cancelAction = UIAlertAction(title: "Cancel",
+                                     style: .cancel,
+                                     handler:
+      { action -> Void in
+        print("Cancel")
+    })
+    let defaultAction = UIAlertAction(title: "OK",
+                                      style: .default,
+                                      handler:
+      { action -> Void in
+        // TextFieldから値を取得
+        if let textFields = alert.textFields {
+            for textField in textFields {
+            if let text = textField.text, !text.isEmpty {
+              // 取得したテキストをセクションのタイトルとして追加する
+              print(text)
+              self.sectionTitleArray.insert(text, at: 0)
+              self.dataArrayGroup.insert([], at: 0)
+              self.tableView.insertSections(IndexSet(integer: 0), with: .automatic)
+            }
+          }
+        }
+    })
+    alert.addAction(cancelAction)
+    alert.addAction(defaultAction)
+    alert.addTextField(configurationHandler: { text -> Void in })
+    present(alert, animated: true, completion: nil)
+    //addrowボタン
+    let count = dataArrayGroup[1].count
+    dataArray1[1].insert([], at: 0)
+    tableView.insertRows(at: [IndexPath(row: count, section: 1)], with: .automatic)
+  }
+  @IBAction func deleteSection(_ sender: UIButton) {
+    if sectionTitleArray.isEmpty {
+      return
+    }
+    let alert = UIAlertController(title:"Sction削除",
+                                  message: "削除するSectionTitleを入力してください",
+                                  preferredStyle: .alert)
+    let cancelAction = UIAlertAction(title: "Cancel",
+                                     style: .cancel,
+                                     handler:
+      { action -> Void in
+        print("Cancel")
+    })
+    let defaultAction = UIAlertAction(title: "OK",
+                                      style: .default,
+                                      handler:
+      { action -> Void in
+        // TextFieldから値を取得
+        if let textFields = alert.textFields {
+          for textField in textFields {
+            if let text = textField.text,
+              !text.isEmpty,
+              let index = self.sectionTitleArray.index(of: text) {
+              self.sectionTitleArray.remove(at: index)
+              self.dataArrayGroup.remove(at: index)
+              self.tableView.deleteSections(IndexSet(integer: index), with: .automatic)
+            }
+          }
+        }
+    })
+    alert.addAction(cancelAction)
+    alert.addAction(defaultAction)
+    alert.addTextField(configurationHandler: { text -> Void in })
+    present(alert, animated: true, completion: nil)
+  }
+  // Rowを追加する(アニメーションはご自由に)
+  @IBAction func addRow(_ sender: UIButton) {
+    //func addRow() {
+    if dataArrayGroup.count == 0 {
+      return
+    }
+    let alert = UIAlertController(title:"Row追加",
+                                  message: "個数と金額を入力してください",
+                                  preferredStyle: .alert)
+    let cancelAction = UIAlertAction(title: "Cancel",
+                                     style: .cancel,
+                                     handler:
+      { action -> Void in
+        print("Cancel")
+    })
+    let count = dataArrayGroup[0].count
+    let defaultAction = UIAlertAction(title: "OK",
+                                      style: .default,
+                                      handler:
+      { action -> Void in
+        // TextFieldから値を取得
+        if let textFields = alert.textFields {
+          let data = DataModel()
+          for textField in textFields {
+            if let text = textField.text, !text.isEmpty, let _ = Int(text) {
+              if textField.tag == 1 {
+                data.count = text
+              } else {
+                data.price = text
+              }
+            }
+          }
+          self.dataArrayGroup[0].insert(data, at: count)
+          self.tableView.insertRows(at: [IndexPath(row: count, section: 0)], with: .automatic)
+        }
+    })
+    alert.addTextField {
+      $0.placeholder = "個数"
+      $0.keyboardType = .numberPad
+      $0.tag = 1
+    }
+    alert.addTextField {
+      $0.placeholder = "金額"
+      $0.keyboardType = .numberPad
+      $0.tag = 2
+    }
+    alert.addAction(cancelAction)
+    alert.addAction(defaultAction)
+    present(alert, animated: true, completion: nil)
+  }
+  // MARK: - TableView Delegate & DataSource
+  //この部分です。
+  func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
+    if sectionTitleArray.count == 0 {
+      return nil
+    } else {
+      return sectionTitleArray[section]
+    }
+  }
+  // Section Count
+  func numberOfSections(in tableView: UITableView) -> Int {
+    return dataArrayGroup.count
+  }
+  // Row Count
+  func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+    return dataArrayGroup[section].count
+  }
+  // Generate Cell
+  func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+    let cell = tableView.dequeueReusableCell(withIdentifier: "CustomCell", for: indexPath) as! CustomCell
+    cell.data = dataArrayGroup[indexPath.section][indexPath.row]
+    cell.indexLabel.text = String(indexPath.row + 1)
+    return cell
+  }
+  // Select Cell
+  func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+    tableView.deselectRow(at: indexPath as IndexPath, animated: true)
+  }
+  func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
+    if editingStyle == UITableViewCellEditingStyle.delete {
+      dataArrayGroup[indexPath.section].remove(at: indexPath.row)
+      tableView.deleteRows(at: [indexPath], with: UITableViewRowAnimation.automatic)
+    }
+  }
+  //cellが削除が可能なことを伝える
+  func tableView(_ tableView: UITableView, editingStyleForRowAt indexPath: IndexPath) -> UITableViewCellEditingStyle {
+    return UITableViewCellEditingStyle.delete;
+  }
+}
+```
 参考文献
 KentarouさんのGitHub