我有 2 个具有相同逻辑的视图控制器，但其中一个不工作
I have 2 view controllers with same logic but one of them is not working
我有 2 个视图模型 TransferViewModel，它有各自的 TransferViewController，用于从模型 LocalTransactionRequest 进行本地交易，我有 BankTransferViewModel，它有模型 BankTransactionsRequest，第一个正在工作，但第二个没有，两个视图控制器都是应该对另一个视图控制器 ConfirmViewController 执行 segue，但是第二个（BankTransferViewController）不工作
[这个是TransferViewController][1]
private func setupViewModel() {
viewModel.isTransfer = isTransfer
viewModel.loan = loan
viewModel.getBalance()
transferButton.rx.tap.asObservable().subscribe(onNext: { [weak self] _ in
guard let strongSelf = self else { return }
if let isVerified = UserManager.shared.get()?.IsVerified.value, isVerified{
strongSelf.viewModel.phoneNumberText.accept(strongSelf.phoneNumberTextField.text ?? "")
strongSelf.viewModel.amountText.accept(strongSelf.amountTextField.text ?? "")
strongSelf.viewModel.transfer()
}else{
strongSelf.showVerificationAlert()
}
}).disposed(by: disposeBag)
viewModel.accountInfo.asObservable().subscribe(onNext: { [weak self] accountInfo in
if let account = accountInfo{
guard let strongSelf = self else { return }
strongSelf.accountInfo = account
let request = LocalTransactionRequest(Identification: UserManager.shared.identification ?? "", Amount: Double(strongSelf.amountTextField.text!)!, ReceiverPhoneNumber: strongSelf.phoneNumberTextField.text!, IDBankAccount: UserManager.shared.defaultBankAccountId ?? -1, IsFromTransfer: strongSelf.isTransfer, Description: strongSelf.descriptionTF.text!)
strongSelf.transferRequest.accept(request)
strongSelf.performSegue(withIdentifier: "segue_toConfirmTransfer", sender: account)
}
}).disposed(by: disposeBag)
}
[这个是 BankTransferViewController][2]
private func setupViewModel(){
viewModel.isTransfer = isTransfer
viewModel.getBalance()
transferButton.rx.tap.asObservable().subscribe(onNext: { [weak self] _ in
guard let strongSelf = self else { return }
if let isVerified = UserManager.shared.get()?.IsVerified.value, isVerified{
strongSelf.viewModel.bankNumberText.accept(strongSelf.bankNumberTextField.text ?? "")
strongSelf.viewModel.firstName.accept(strongSelf.firstNameTextField.text ?? "")
strongSelf.viewModel.lastName.accept(strongSelf.lastNameTextField.text ?? "")
strongSelf.viewModel.amountText.accept(strongSelf.amountTextField.text ?? "")
strongSelf.viewModel.descriptionText.accept(strongSelf.descriptionTF.text ?? "")
strongSelf.viewModel.transferNational()
}else{
strongSelf.showVerificationAlert()
}
}).disposed(by: disposeBag)
viewModel.transferRequest.asObservable().subscribe(onNext: { [weak self] bankRequest in
if let bank = bankRequest{
guard let strongSelf = self else { return }
strongSelf.bankTransferRequest = bank
let request = BankTransactionRequest(Identification: UserManager.shared.identification ?? "", ReceiverBankAccount: strongSelf.bankNumberTextField.text!, ReceiverFirst: strongSelf.firstNameTextField.text!, ReceiverLast: strongSelf.lastNameTextField.text!, Amount: Double(strongSelf.amountTextField.text!)!, Description: strongSelf.descriptionTF.text!)
strongSelf.nationalTransferRequest.accept(request)
DispatchQueue.main.async {
strongSelf.performSegue(withIdentifier: "segue_toConfirmTransfer", sender: bank)
}
}
}).disposed(by: disposeBag)
}
This is view model of BankTransferViewController
import RxCocoa
import RxSwift
class BankTransferViewModel: BaseViewModel {
private let transferUseCase: TransferUseCase
var accountInfo: BehaviorRelay<AccountExistModel?> = BehaviorRelay(value: nil)
var balance: BehaviorRelay<BalanceModel?> = BehaviorRelay(value: nil)
var bankNumberText: BehaviorRelay<String> = BehaviorRelay(value: "")
var firstName: BehaviorRelay<String> = BehaviorRelay(value: "")
var lastName: BehaviorRelay<String> = BehaviorRelay(value: "")
var amountText: BehaviorRelay<String> = BehaviorRelay(value: "")
var descriptionText: BehaviorRelay<String> = BehaviorRelay(value: "")
var transferRequest: BehaviorRelay<BankTransactionRequest?> = BehaviorRelay(value: nil)
var accountExist = PublishSubject<Bool>()
var hasMoney = PublishSubject<Bool>()
var invalidBankNumber = PublishSubject<Bool>()
var accountCannotRecieve = PublishSubject<Bool>()
var isTransfer : Bool = true
var transferPressed: AnyObserver<Void> {
return AnyObserver { [weak self] event in
switch event {
case .next:
guard let strongSelf = self else {
return
}
strongSelf.checkValidation()
default:
break
}
}
}
init(transferUseCase: TransferUseCase) {
self.transferUseCase = transferUseCase
}
func transferNational() {
self.checkValidation()
}
private func checkValidation() {
guard let balance = self.balance.value else {
state.onNext(.error(error: RepoError(with: "Dështoi verifikimi i disponueshmërisë financiare. Ju lusim të provoni më vonë.")))
return
}
if bankNumberText.value == ""{
state.onNext(.error(error: RepoError(with: "Plotëso fushën për numrin e bankës të pranuesit.")))
return
}
if bankNumberText.value.count < 6{
state.onNext(.error(error: RepoError(with:"Ju lutemi, shtypni një numër valid të gjirollogarisë")))
return
}
guard let doubleAmount = Double(amountText.value), doubleAmount > 0 else {
state.onNext(.error(error: RepoError(with: "Shuma jo e rregullt")))
return
}
if amountText.value == ""{
state.onNext(.error(error: RepoError(with: "Shuma jo e
saktë.")))
return
}
if balance.Balance < doubleAmount{
state.onNext(.error(error: RepoError(with: "Nuk keni fonde të mjaftueshme për realizimin e transaksionit.")))
return
}
if bankNumberText.value != "" && amountText.value != "" && (balance.Balance >= doubleAmount) {
// checkAccountExist()
}
}
func checkModulus16(accountNumber: String) -> Bool {
if accountNumber.isEmpty{
return false
}
let newValue = accountNumber.dropLast(2)
let mod = Int64(newValue + "00")! % 97
let result = 98 - mod
let derivedData = newValue + "" + (result < 10 ? "0\(result)" : "\(result)")
return Int64(derivedData) == Int64(accountNumber)
}
func showError(with message: String ) {
state.onNext(.error(error: RepoError(with: message)))
}
func getBalance(){
let params = ["Identification": UserManager.shared.identification ?? "" ] as ApiJson
transferUseCase.getBalance(with: params) {[weak self] (balance, error) in
guard let strongSelf = self else { return }
if let error = error {
strongSelf.state.onNext(.error(error: error))
strongSelf.accountExist.onNext(false)
}else if let balance = balance{
UserManager.shared.userBonus = balance.BonusAmount
strongSelf.state.onNext(.content)
strongSelf.balance.accept(balance)
strongSelf.accountExist.onNext(true)
UserManager.shared.updateBalance(with: balance)
}
}
}
//MARK: - baseViewModel
override func tryAgain() {
self.getBalance()
}
}
确保以下几点对您的 performSegue 在 BankTransferViewController 中工作有效：
- BankTransferViewController 有一个指向 ConfirmViewController 的 segue。
- 您
performSegue(withIdentifier: yourIdentifier, sender: yourModel) 中的标识符与故事板中连接两个视图控制器的 segue 完全相同。
- 由于您是在
viewModel.transferRequest.asObservable().subscribe(onNext: 代码中使用它，因此请确保您在代码中的某处向 viewModel.transferRequest 发出了一个值。否则，performSegue 永远不会被调用。
- 由于您在使用
performSegue 之前进行了此检查 if let bank = bankRequest{，请确保您发出的 transferRequest 值不为零。
我有 2 个视图模型 TransferViewModel，它有各自的 TransferViewController，用于从模型 LocalTransactionRequest 进行本地交易，我有 BankTransferViewModel，它有模型 BankTransactionsRequest，第一个正在工作，但第二个没有，两个视图控制器都是应该对另一个视图控制器 ConfirmViewController 执行 segue，但是第二个（BankTransferViewController）不工作
[这个是TransferViewController][1]
private func setupViewModel() {
viewModel.isTransfer = isTransfer
viewModel.loan = loan
viewModel.getBalance()
transferButton.rx.tap.asObservable().subscribe(onNext: { [weak self] _ in
guard let strongSelf = self else { return }
if let isVerified = UserManager.shared.get()?.IsVerified.value, isVerified{
strongSelf.viewModel.phoneNumberText.accept(strongSelf.phoneNumberTextField.text ?? "")
strongSelf.viewModel.amountText.accept(strongSelf.amountTextField.text ?? "")
strongSelf.viewModel.transfer()
}else{
strongSelf.showVerificationAlert()
}
}).disposed(by: disposeBag)
viewModel.accountInfo.asObservable().subscribe(onNext: { [weak self] accountInfo in
if let account = accountInfo{
guard let strongSelf = self else { return }
strongSelf.accountInfo = account
let request = LocalTransactionRequest(Identification: UserManager.shared.identification ?? "", Amount: Double(strongSelf.amountTextField.text!)!, ReceiverPhoneNumber: strongSelf.phoneNumberTextField.text!, IDBankAccount: UserManager.shared.defaultBankAccountId ?? -1, IsFromTransfer: strongSelf.isTransfer, Description: strongSelf.descriptionTF.text!)
strongSelf.transferRequest.accept(request)
strongSelf.performSegue(withIdentifier: "segue_toConfirmTransfer", sender: account)
}
}).disposed(by: disposeBag)
}
[这个是 BankTransferViewController][2]
private func setupViewModel(){
viewModel.isTransfer = isTransfer
viewModel.getBalance()
transferButton.rx.tap.asObservable().subscribe(onNext: { [weak self] _ in
guard let strongSelf = self else { return }
if let isVerified = UserManager.shared.get()?.IsVerified.value, isVerified{
strongSelf.viewModel.bankNumberText.accept(strongSelf.bankNumberTextField.text ?? "")
strongSelf.viewModel.firstName.accept(strongSelf.firstNameTextField.text ?? "")
strongSelf.viewModel.lastName.accept(strongSelf.lastNameTextField.text ?? "")
strongSelf.viewModel.amountText.accept(strongSelf.amountTextField.text ?? "")
strongSelf.viewModel.descriptionText.accept(strongSelf.descriptionTF.text ?? "")
strongSelf.viewModel.transferNational()
}else{
strongSelf.showVerificationAlert()
}
}).disposed(by: disposeBag)
viewModel.transferRequest.asObservable().subscribe(onNext: { [weak self] bankRequest in
if let bank = bankRequest{
guard let strongSelf = self else { return }
strongSelf.bankTransferRequest = bank
let request = BankTransactionRequest(Identification: UserManager.shared.identification ?? "", ReceiverBankAccount: strongSelf.bankNumberTextField.text!, ReceiverFirst: strongSelf.firstNameTextField.text!, ReceiverLast: strongSelf.lastNameTextField.text!, Amount: Double(strongSelf.amountTextField.text!)!, Description: strongSelf.descriptionTF.text!)
strongSelf.nationalTransferRequest.accept(request)
DispatchQueue.main.async {
strongSelf.performSegue(withIdentifier: "segue_toConfirmTransfer", sender: bank)
}
}
}).disposed(by: disposeBag)
}
This is view model of BankTransferViewController
import RxCocoa
import RxSwift
class BankTransferViewModel: BaseViewModel {
private let transferUseCase: TransferUseCase
var accountInfo: BehaviorRelay<AccountExistModel?> = BehaviorRelay(value: nil)
var balance: BehaviorRelay<BalanceModel?> = BehaviorRelay(value: nil)
var bankNumberText: BehaviorRelay<String> = BehaviorRelay(value: "")
var firstName: BehaviorRelay<String> = BehaviorRelay(value: "")
var lastName: BehaviorRelay<String> = BehaviorRelay(value: "")
var amountText: BehaviorRelay<String> = BehaviorRelay(value: "")
var descriptionText: BehaviorRelay<String> = BehaviorRelay(value: "")
var transferRequest: BehaviorRelay<BankTransactionRequest?> = BehaviorRelay(value: nil)
var accountExist = PublishSubject<Bool>()
var hasMoney = PublishSubject<Bool>()
var invalidBankNumber = PublishSubject<Bool>()
var accountCannotRecieve = PublishSubject<Bool>()
var isTransfer : Bool = true
var transferPressed: AnyObserver<Void> {
return AnyObserver { [weak self] event in
switch event {
case .next:
guard let strongSelf = self else {
return
}
strongSelf.checkValidation()
default:
break
}
}
}
init(transferUseCase: TransferUseCase) {
self.transferUseCase = transferUseCase
}
func transferNational() {
self.checkValidation()
}
private func checkValidation() {
guard let balance = self.balance.value else {
state.onNext(.error(error: RepoError(with: "Dështoi verifikimi i disponueshmërisë financiare. Ju lusim të provoni më vonë.")))
return
}
if bankNumberText.value == ""{
state.onNext(.error(error: RepoError(with: "Plotëso fushën për numrin e bankës të pranuesit.")))
return
}
if bankNumberText.value.count < 6{
state.onNext(.error(error: RepoError(with:"Ju lutemi, shtypni një numër valid të gjirollogarisë")))
return
}
guard let doubleAmount = Double(amountText.value), doubleAmount > 0 else {
state.onNext(.error(error: RepoError(with: "Shuma jo e rregullt")))
return
}
if amountText.value == ""{
state.onNext(.error(error: RepoError(with: "Shuma jo e
saktë.")))
return
}
if balance.Balance < doubleAmount{
state.onNext(.error(error: RepoError(with: "Nuk keni fonde të mjaftueshme për realizimin e transaksionit.")))
return
}
if bankNumberText.value != "" && amountText.value != "" && (balance.Balance >= doubleAmount) {
// checkAccountExist()
}
}
func checkModulus16(accountNumber: String) -> Bool {
if accountNumber.isEmpty{
return false
}
let newValue = accountNumber.dropLast(2)
let mod = Int64(newValue + "00")! % 97
let result = 98 - mod
let derivedData = newValue + "" + (result < 10 ? "0\(result)" : "\(result)")
return Int64(derivedData) == Int64(accountNumber)
}
func showError(with message: String ) {
state.onNext(.error(error: RepoError(with: message)))
}
func getBalance(){
let params = ["Identification": UserManager.shared.identification ?? "" ] as ApiJson
transferUseCase.getBalance(with: params) {[weak self] (balance, error) in
guard let strongSelf = self else { return }
if let error = error {
strongSelf.state.onNext(.error(error: error))
strongSelf.accountExist.onNext(false)
}else if let balance = balance{
UserManager.shared.userBonus = balance.BonusAmount
strongSelf.state.onNext(.content)
strongSelf.balance.accept(balance)
strongSelf.accountExist.onNext(true)
UserManager.shared.updateBalance(with: balance)
}
}
}
//MARK: - baseViewModel
override func tryAgain() {
self.getBalance()
}
}
确保以下几点对您的 performSegue 在 BankTransferViewController 中工作有效：
- BankTransferViewController 有一个指向 ConfirmViewController 的 segue。
- 您
performSegue(withIdentifier: yourIdentifier, sender: yourModel)中的标识符与故事板中连接两个视图控制器的 segue 完全相同。 - 由于您是在
viewModel.transferRequest.asObservable().subscribe(onNext:代码中使用它，因此请确保您在代码中的某处向viewModel.transferRequest发出了一个值。否则，performSegue永远不会被调用。 - 由于您在使用
performSegue之前进行了此检查if let bank = bankRequest{，请确保您发出的 transferRequest 值不为零。