{"id":766,"date":"2020-01-15T13:40:00","date_gmt":"2020-01-15T04:40:00","guid":{"rendered":"https:\/\/www.elehobby.fun\/?p=766"},"modified":"2020-01-15T13:40:00","modified_gmt":"2020-01-15T04:40:00","slug":"swiftno5-beginning-ios13-app-development","status":"publish","type":"post","link":"https:\/\/www.7crystalsky.com\/?p=766","title":{"rendered":"Swift\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30ebNo.5 Beginning iOS13&Swift App Development"},"content":{"rendered":"
\"\"<\/div>\n
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 \u4eca\u56de\u306f\u3001Chapter4  ToDoList using CoreData\u3067\u3059\u3002
\n\u3053\u306e\u753b\u9762\u306f\u3001\u5165\u529b\u753b\u9762\u3067\u512a\u5148\u9806\u4f4d\u3092\u3064\u3051\u3089\u308c\u307e\u3059\u3002
\n\u5165\u529b\u5f8c\u306f\u3001TableView\u306b\u30ea\u30b9\u30c8\u8868\u793a\u3055\u308c\u3001\u30ea\u30b9\u30c8\u3092\u6307\u5b9a\u3057\u3066\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u8a73\u7d30\u753b\u9762\u306b\u9077\u79fb\u3057\u307e\u3059\u3002
\n\u6b21\u56de\u306f\u3001ToDoList\u306b\u5199\u771f\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u6311\u6226\u3057\u307e\u3059\u3002<\/p>\n

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\n\/\/  <\/span>ToDoTableViewController.swift<\/div>\n
\n\/\/  <\/span>ToDoList2<\/div>\n
<\/div>\n
\nimport<\/span> UIKit<\/div>\n
<\/div>\n
\nclass<\/span> <\/span>ToDoTableViewController: <\/span>UITableViewController<\/span> {<\/span><\/div>\n
\n    <\/span><\/div>\n
\n    <\/span>var<\/span> toDoCDs<\/span>:[ToDoCD<\/span>] = []<\/div>\n
<\/div>\n
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\n    <\/span><\/span>override <\/span>func <\/span>viewDidLoad<\/span>() {<\/span><\/div>\n
\n        <\/span>super<\/span>.viewDidLoad()<\/div>\n
<\/div>\n
\n    <\/span>}<\/div>\n
\n    <\/span>override<\/span> func<\/span> viewWillAppear<\/span>(_<\/span> animated: Bool<\/span>) {<\/div>\n
\n               <\/span>getToDos()<\/div>\n
\n       <\/span><\/div>\n
\n}<\/div>\n
<\/div>\n
\n <\/span>func<\/span> getToDos<\/span>(){<\/div>\n
\n        <\/span>if<\/span> let<\/span> context = (UIApplication.shared.delegate as<\/span>? AppDelegate<\/span>)?.persistentContainer.viewContext {<\/div>\n
\n            <\/span>if<\/span> let<\/span> toDosFromCoreData = try<\/span>? context.fetch(ToDoCD.fetchRequest()){<\/div>\n
\n                <\/span>if<\/span> let<\/span> toDos = toDosFromCoreData as<\/span>? [ToDoCD<\/span>]{<\/div>\n
\n                    <\/span>toDoCDs = toDos<\/div>\n
\n                    <\/span>tableView.reloadData()<\/div>\n
\n                <\/span>}<\/div>\n
\n            <\/span>}<\/div>\n
\n        <\/span>}<\/div>\n
\n    <\/span>}<\/div>\n
\n    <\/span><\/div>\n
\n   <\/span><\/div>\n
\n    <\/span><\/div>\n
\n    <\/span>override<\/span> func<\/span> tableView<\/span>(_<\/span> tableView: UITableView<\/span>, didSelectRowAt indexPath: IndexPath<\/span>){<\/div>\n
\n    <\/span>let<\/span> selectedToDo = toDoCDs[indexPath.row]<\/div>\n
\n        <\/span><\/div>\n
\n        <\/span>performSegue(withIdentifier: “moveToDetails”<\/span>, sender: selectedToDo)<\/div>\n
\n    <\/span>}<\/div>\n
<\/div>\n
\n    <\/span>override<\/span> func<\/span> tableView<\/span>(_<\/span> tableView: UITableView<\/span>, numberOfRowsInSection section: Int<\/span>) -> Int<\/span> {<\/div>\n
\n        <\/span>return<\/span> toDoCDs.count<\/div>\n
\n    <\/span>}<\/div>\n
<\/div>\n
\n   <\/span><\/div>\n
\n    <\/span>override<\/span> func<\/span> tableView<\/span>(_<\/span> tableView: UITableView<\/span>, cellForRowAt indexPath: IndexPath<\/span>) -> UITableViewCell<\/span> {<\/div>\n
\n        <\/span>let<\/span> cell = UITableViewCell()<\/div>\n
\n        <\/span>let<\/span> selectedToDo = toDoCDs[indexPath.row]<\/div>\n
\n        <\/span><\/div>\n
\n        <\/span>if<\/span> selectedToDo.priority == 1<\/span>    <\/span>{<\/div>\n
\n            <\/span>if<\/span> let<\/span> name = selectedToDo.name{<\/div>\n
\n            <\/span>cell.textLabel?.text = “\u2757\ufe0f”<\/span> + name<\/div>\n
\n            <\/span>}<\/div>\n
\n        <\/span>}<\/div>\n
\n        <\/span>else<\/span> if<\/span> selectedToDo.priority == 2<\/span>{<\/div>\n
\n            <\/span>if<\/span> let<\/span> name = selectedToDo.name{<\/div>\n
\n            <\/span>cell.textLabel?.text = “\u203c\ufe0f”<\/span> + name<\/div>\n
\n            <\/span>}<\/div>\n
\n        <\/span>}<\/div>\n
\n        <\/span>else<\/span> {<\/div>\n
\n            <\/span>if<\/span> let<\/span> name = selectedToDo.name{<\/div>\n
\n            <\/span>cell.textLabel?.text = name<\/div>\n
\n        <\/span>}<\/div>\n
\n        <\/span>}<\/div>\n
\n        <\/span>return<\/span> cell<\/div>\n
\n    <\/span>}<\/div>\n
<\/div>\n
<\/div>\n
\n        <\/span><\/div>\n
\n       <\/span>override<\/span> func<\/span> prepare<\/span>(for segue: UIStoryboardSegue<\/span>, sender: Any<\/span>?) {<\/div>\n
\n        <\/span><\/div>\n
\n        <\/span>if<\/span> let<\/span> addToDoViewController = segue.destination as<\/span>?<\/div>\n
\n            <\/span><\/span>AddToDoViewController{<\/span><\/div>\n
\n            <\/span>addToDoViewController.toDoTableViewController = self<\/span><\/div>\n
\n        <\/span>}<\/div>\n
\n    <\/span><\/div>\n
\n                <\/span><\/div>\n
\n        <\/span>if<\/span> let<\/span> detailsToDoViewController = segue.destination as<\/span>?<\/div>\n
\n            <\/span><\/span>ToDoDetailsViewController{<\/span><\/div>\n
\n            <\/span>if<\/span> let<\/span> selectedToDo = sender as<\/span>? ToDoCD<\/span>{<\/div>\n
\n                <\/span>detailsToDoViewController.toDoCD = selectedToDo<\/div>\n
\n            <\/span>}<\/div>\n
\n        <\/span>}<\/div>\n
\n}<\/div>\n
\n        <\/span><\/div>\n
\n}<\/div>\n