質問編集履歴
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[参考](https://watchcontents.com/swift-appdelegate-method/)
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[参考ページ](https://watchcontents.com/swift-appdelegate-method/)
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```
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[参考](https://watchcontents.com/swift-appdelegate-method/)
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appDelegateからHomeViewControllerのメソッド```h
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appDelegateからHomeViewControllerのメソッド```hello()```を呼び出そうとしたところ
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2
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こちらのエラーが表示されアプリが落ちてしまいます。
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```
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import UIKit
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-
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import NCMB
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-
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import AuthenticationServices
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@@ -46,91 +42,15 @@
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let appDelegate = UIApplication.shared.delegate as! AppDelegate
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appDelegate.homeViewController.hello()//ここでエラー表示される落ちる
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// APIキーの設定とSDK初期化
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NCMB.initialize(applicationKey: applicationKey, clientKey: clientKey);
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// on the initial view controller or somewhere else, check the userdefaults
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if let userID = UserDefaults.standard.string(forKey: "userID") {
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// move to main view
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print("以前にログイン済み")
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print(userID)
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let appDelegate = UIApplication.shared.delegate as! AppDelegate
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appDelegate.homeViewController.handleASCredential()//ここでエラー表示される落ちる
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}else{
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goLoginViewConroller()
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}
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return true
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}
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}
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-
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//ログインコントローラーに遷移
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func goLoginViewConroller(){
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DispatchQueue.main.async {
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//画面遷移させたい部分に以下の処理を記述
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// windowを生成
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self.window = UIWindow(frame: UIScreen.main.bounds)
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-
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// Storyboardを指定
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let storyboard = UIStoryboard(name: "Main", bundle: nil)
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// Viewcontrollerを指定
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let loginViewController = storyboard.instantiateViewController(withIdentifier:"login")
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// rootViewControllerに入れる
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self.window?.rootViewController = loginViewController
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// 表示
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self.window?.makeKeyAndVisible()
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}
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}
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-
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-
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}
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56
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@@ -147,8 +67,6 @@
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147
67
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```
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68
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import UIKit
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150
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-
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151
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-
import AuthenticationServices
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152
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@@ -180,67 +98,11 @@
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-
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+
func hello() {
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185
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-
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186
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-
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187
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-
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+
print("hello")
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-
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-
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190
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-
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-
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105
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}
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-
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195
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-
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196
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-
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197
|
-
//Appleのサインイン状態の確認
|
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198
|
-
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199
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-
@objc func handleASCredential() {
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200
|
-
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|
201
|
-
let userID = UserDefaults.standard.string(forKey: "userID")
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202
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-
|
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203
|
-
print("userIdは(userID)")
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204
|
-
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205
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-
let appleIDProvider = ASAuthorizationAppleIDProvider()
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206
|
-
|
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207
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-
appleIDProvider.getCredentialState(forUserID: userID!) { (credentialState, error) in
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208
|
-
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209
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-
switch credentialState {
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210
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-
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211
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case .authorized:
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212
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-
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213
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-
print("user remain logged in, proceed to another view")
|
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214
|
-
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215
|
-
//self.performSegue(withIdentifier: "LoginToUserSegue", sender: nil)
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216
|
-
|
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217
|
-
case .revoked:
|
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218
|
-
|
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219
|
-
print("user logged in before but revoked")
|
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220
|
-
|
|
221
|
-
self.appDelegate.goLoginViewConroller()
|
|
222
|
-
|
|
223
|
-
case .notFound:
|
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224
|
-
|
|
225
|
-
print("user haven't log in before")
|
|
226
|
-
|
|
227
|
-
self.appDelegate.goLoginViewConroller()
|
|
228
|
-
|
|
229
|
-
default:
|
|
230
|
-
|
|
231
|
-
print("unknown state")
|
|
232
|
-
|
|
233
|
-
self.appDelegate.goLoginViewConroller()
|
|
234
|
-
|
|
235
|
-
}
|
|
236
|
-
|
|
237
|
-
}
|
|
238
|
-
|
|
239
|
-
}
|
|
240
|
-
|
|
241
|
-
|
|
242
|
-
|
|
243
|
-
|
|
244
106
|
|
|
245
107
|
}
|
|
246
108
|
|