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=*[https://www.typea.info/blog/index.php/2021/11/30/swift_macos_app_permission/ ファイルパーミッションエラー（App Sandbox)]===[https://www.typea.info/blog/index.php/2021/01/23/swiftui_tips_view_component_locate/ 画面部品の追加方法]====
====SwiftUIライブラリ====
=====[https://github.com/SwiftUIX/SwiftUIX SwiftUIX]=====
編集の要約なし
| [[Swift]] | [[Mac]] | [[Xcode]] | [[Swift Sample]] | [[Cocoa]] | [[Xamarin.Mac]] |
{{amazon|B082SMJC7V}}
===Swift UI チュートリアルをやってみる===
----
*[https://www.typea.info/blog/index.php/2020/12/09/swiftui_tutorial_youtube_memo/ プロジェクト作成〜TextViewのカスタマイズ]
*[[Xcode]]
*resume -> プレビュー
*command + click -> Action List
*右上の + ボタンでコントロール追加
====[[Xcode]] ナビゲーター====
----
[[File:xcode_navgator_icons.png|400px]]
左から
#プロジェクトナビゲーター
#ソースコントロールナビゲーター
#シンボルナビゲーター
#検索ナビゲーター
#イシューナビゲーター
#テストナビゲーター
#デバッグナビゲーター
#ブレークポイントナビゲーター
#レポートナビゲーター
====[https://www.typea.info/blog/index.php/2020/12/09/swiftui_tutorial_youtube_memo/ プロジェクト作成〜TextViewのカスタマイズ]====
====[https://www.typea.info/blog/index.php/2020/12/19/swiftui_tutorial_custom_image_view/ Custom Image Viewの作成]====
==レイアウト==
===[https://d1v1b.com/swiftui/alignment Alignment]===
----
*[https://d1v1b.com/swiftui/alignment Alignment]
===[https://t32k.me/mol/log/margin-padding-swiftui/ 余白の取り方]===
----
----
*[https://qiita.com/am10/items/3b2eb3d9f6c6955455b6 ファイル格納先]
===View間データ受け渡し===
----
*https://qiita.com/noby111/items/26405bd89075c841029a
====ObservableObject を経由して親子ViewでAlertの表示フラグを共有====
[[File:swiftui_share_object.png|300px]]
*ObservableObjectを共有して、変更をSubscribeする
<pre>
struct HostListView: View {
@ObservedObject var hosts = HostList()
@ObservedObject var param = Param()
var body: some View {
VStack {
let columns =
[GridItem(.adaptive(minimum: 250, maximum: 800))]
ScrollView {
LazyVGrid(columns: columns, spacing:10) {
ForEach(hosts.hosts, id: \.id) { host in
HostView(host:host).environmentObject(param)
}
} .padding(20)
}.alert(isPresented: $param.isSaveAlert, content: {
Alert(title: Text("Title"),message: Text("Messge"),
primaryButton: .default(Text("OK"), action: {}),
secondaryButton: .cancel(Text("Cancel"),action: {}))
})
}
}
}
struct HostView : View {
@ObservedObject var host: WoL.Host
@EnvironmentObject var param: Param
var body: some View {
VStack{
HStack {
Button(action: {
self.param.isSaveAlert = true
}) {
Image(systemName: "square.and.arrow.down")
}.help(Text("save"))
}
:
}
}
}
class Param : ObservableObject {
@Published var isSaveAlert: Bool = false
}
</pre>
====@Binding を経由して親子ViewでAlertの表示フラグを共有====
[[File:swiftui_share_object.png|300px]]
*@Binding でView間で変数を共有
*呼び出し側は＠State
<pre>
struct HostListView: View {
@ObservedObject var hosts = HostList()
@State var isSaveAlert = false
var body: some View {
VStack {
let columns =
[GridItem(.adaptive(minimum: 250, maximum: 800))]
ScrollView {
LazyVGrid(columns: columns, spacing:10) {
ForEach(hosts.hosts, id: \.id) { host in
HostView(host:host, isSaveAlert: $isSaveAlert, alertMessage: $alertMessage)
}
} .padding(20)
}.alert(isPresented: $isSaveAlert, content: {
Alert(title: Text("Title"),message: Text(alertMessage),
primaryButton: .default(Text("OK"), action: {}),
secondaryButton: .cancel(Text("Cancel"),action: {}))
})
}
}
}
struct HostView : View {
@ObservedObject var host: WoL.Host
@Binding var isSaveAlert: Bool
var body: some View {
VStack{
HStack {
Button(action: {
self.isSaveAlert = true
}) {
Image(systemName: "square.and.arrow.down")
}.help(Text("save"))
:
}
}
}
}
</pre>
=====@Binding使用時のPreview=====
*＠Stateかつ、staticで宣言
*$で変数を渡す
<pre>
struct HostView_Previews: PreviewProvider {
@State static var isAlert = true
static var previews: some View {
let host = WoL.Host(host: "test.local", ip: "192.168.0.1", macaddr: "aa:bb:cc:dd:ee:ff", comment: "")
HostView(host: host, isAlert: $isAlert)
}
}
</pre>
==メニュー==
===メインメニューに追加メインメニューに別のViewを開くメニューを追加===
----
[[File:swift_ui_main_menu.png|400px]]
ContentView()
}.commands {
CommandGroup(replacingafter: CommandGroupPlacement.helpappInfo) { Button Divider() NavigationLink(actiondestination: {}PreferenceView()) { Text("MyApp Helppreferences") }
}
}
}
</pre>
====Tab切り替えイベント====
----
<pre>
@State var selectedTabIndex = 1;
var body: some View {
TabView(selection: $selectedTabIndex) {
arpListView.tabItem {
Text("Tab Label 1")
}.tag(1)
hostListView.tabItem {
Text("Tab Label 2")
}.tag(2)
}
.onChange(of: selectedTabIndex) { value in
print("TAB INDEX \(value)")
}
}
</pre>
===Binding===
----
.frame(width: 40)
}
}
</pre>
====リストのBinding====
----
[[File:swiftui_binding_list.png|500px]]
*Model
<pre>
import Foundation
import AppKit
import SwiftUI
class File : Identifiable, ObservableObject {
let id = UUID()
let path: String
let name: String
let isDirectory: Bool
var isOn: Bool = false
init(path: String, name: String, isDirectory: Bool, isOn: Bool) {
self.path = path
self.name = name
self.isDirectory = isDirectory
self.isOn = isOn
}
}
class FileList : ObservableObject {
@Published var files: [File] = []
}
</pre>
*UI
**各所(①②③)に$をつける
<pre>
import SwiftUI
struct ContentView: View {
@ObservedObject var filePaths = FileList()
@State private var selectedPaths = Set<File.ID>()
var body: some View {
Button(action: {
let rootDir = EncConverterService.chooseDir()
let queue = DispatchQueue.global(qos: .userInitiated)
queue.async {
EncConverterService.loadFile(directoryPath: rootDir, filepaths: self.filePaths)
}
}) {
Text("Choose dir")
}
Table($filePaths.files, selection: $selectedPaths) { // ①
TableColumn("path") { $file in // ②
let isDir = file.isDirectory
HStack {
if !isDir {
Toggle("",isOn: $file.isOn) // ③
.padding(.leading, (isDir) ? 0 : 20)
}
Text((isDir) ? file.path : file.name)
.font((isDir) ? .headline : .none)
}
}
}
Text("\(selectedPaths.count) path selected")
}
}
</pre>
====List(繰り返し、Section)====
----
[[File:Swiftui_list_section.png|600px]]
}
</pre>
====Listにオブジェクトを表示====
----
[[File:swift_ui_object_load_to_list.png|500px]]
var ip: String = ""
var macaddr: String = ""
}
</pre>
===Table===
----
*https://developer.apple.com/documentation/swiftui/table
[[File:swiftui_tableview.png|500px]]
*Service
<pre>
import Foundation
import AppKit
import SwiftUI
class File : Identifiable {
let id = UUID()
let path: String
init(path: String) {
self.path = path
}
}
class FileList : ObservableObject {
@Published var files: [File] = []
}
public struct EncConverterService {
static func chooseDir() -> String {
let dialog = NSOpenPanel();
dialog.title = "Choose a file| Our Code World"
dialog.showsResizeIndicator = true
dialog.showsHiddenFiles = false
dialog.allowsMultipleSelection = false
dialog.canChooseDirectories = true
dialog.canChooseFiles = false
if (dialog.runModal() == NSApplication.ModalResponse.OK) {
let result = dialog.url
if (result != nil) {
let path: String = result!.path
return path
}
}
return "";
}
static func loadFile(directoryPath: String, filepaths: FileList) {
print(directoryPath)
filepaths.files.append(File(path: directoryPath))
do {
let fm = FileManager.default
let fileNames = try fm.contentsOfDirectory(atPath: directoryPath)
for fileName in fileNames {
let childPath = directoryPath + "/" + fileName
var isDir = ObjCBool(false)
fm.fileExists(atPath: childPath, isDirectory: &isDir)
if isDir.boolValue {
loadFile(directoryPath: childPath, filepaths: filepaths)
}
print("\t" + childPath)
filepaths.files.append(File(path: childPath))
}
} catch {
print(error)
}
}
}
</pre>
*View
<pre>
import SwiftUI
struct ContentView: View {
@ObservedObject var filePaths = FileList()
@State private var selectedPaths = Set<File.ID>()
var body: some View {
Button(action: {
let rootDir = EncConverterService.chooseDir()
let queue = DispatchQueue.global(qos: .userInitiated)
queue.async {
EncConverterService.loadFile(directoryPath: rootDir, filepaths: self.filePaths)
}
}) {
Text("Choose dir")
}
Table(filePaths.files, selection: $selectedPaths) {
TableColumn("Path", value: \.path)
}
Text("\(selectedPaths.count) path selected")
}
}
</pre>
.onReceive(currentTimer) { date in
self.now = date
}
}
}
</pre>
===動的に検索===
[[File:swiftui_dynamic_search.png|400px]]
<pre>
struct HostListView: View {
@ObservedObject var hosts = HostList()
@ObservedObject var param = HostViewParameter()
// 検索キーワード
@State var searchKeyword = ""
var body: some View {
VStack {
let columns =
[GridItem(.adaptive(minimum: 250, maximum: 800))]
ScrollView {
LazyVGrid(columns: columns, spacing:10) {
// Arrayにfilterを適用
ForEach(hosts.hosts.filter({ (host) -> Bool in
if searchKeyword != "" {
return host.host.contains(searchKeyword) ||
host.ip.contains(searchKeyword) ||
host.comment.contains(searchKeyword)
}
return true
}), id: \.id) { host in
HostView(host:host).environmentObject(param)
}
} .padding(20)
}.toolbar {
:
ToolbarItem(placement: .automatic) {
TextField("search...", text: $searchKeyword)
}
}
}
}
</pre>
==Tips==----==Tips=[https://www.typea.info/blog/index.php/2021/11/30/swift_macos_app_permission/ ファイルパーミッションエラー（App Sandbox)]===
----
----
----
[https://qiita.com/yosshi4486/items/3d92f81feaabc1049b4c SwiftUIアプリケーション開発の不足を補うSwiftUIX]
===ファイル選択===
----
<pre>
let dialog = NSOpenPanel();
dialog.title = "Choose a file"
dialog.showsResizeIndicator = true
dialog.showsHiddenFiles = false
dialog.allowsMultipleSelection = false
dialog.canChooseDirectories = false
if (dialog.runModal() == NSApplication.ModalResponse.OK) {
let result = dialog.url
if (result != nil) {
let path: String = result!.path
print(path)
}
} else {
return
}
</pre>
© 2006 矢木浩人
