swift - 如何在蓝牙车载设备上显示来电名称而不是号码

Question

在过去的几天里，我偶然发现了这个困扰我的问题。

我有一个在蓝牙显示器上显示用户名的请求。我试图通过电话扩展来实现它，使用以下代码：

import Foundation
import CallKit
import CoreData
import PhoneNumberKit

class CallDirectoryHandler: CXCallDirectoryProvider {

private let sharedExtensionData = SharedExtensionData()
private let phoneNumberKit = PhoneNumberKit()

private func callers(includeHidden: Bool = false) throws -> [Caller] {
    let fetchRequest: NSFetchRequest<Caller> = self.sharedExtensionData.fetchRequest(includeHidden: includeHidden)
    fetchRequest.fetchBatchSize = 30
    let callers = try self.sharedExtensionData.context.fetch(fetchRequest)
    return callers
}

override func beginRequest(with context: CXCallDirectoryExtensionContext) {
    context.delegate = self

    if context.isIncremental {
        addOrRemoveIncrementalIdentificationPhoneNumbers(to: context)
    } else {
        addAllIdentificationPhoneNumbers(to: context)
    }

    context.completeRequest()
}

private func addAllIdentificationPhoneNumbers(to context: CXCallDirectoryExtensionContext) {
    if var callers = try? self.callers(includeHidden: false) {
        callers = callers.sorted(by: { $0.number < $1.number })
        let allPhoneNumbers = callers.map { $0.number }
        let labels = callers.map { $0.name }

        for (phoneNumber, label) in zip(allPhoneNumbers, labels) {
            guard let number = try? phoneNumberKit.parse("\(phoneNumber)") else { return }
            let formatedNumber = phoneNumberKit.format(number, toType: .e164) as NSString
            let finalNumber = formatedNumber.longLongValue
            autoreleasepool {
                context.addIdentificationEntry(withNextSequentialPhoneNumber: finalNumber, label: label ?? "NO NAME")
            }
        }
    }
}

private func addOrRemoveIncrementalIdentificationPhoneNumbers(to context: CXCallDirectoryExtensionContext) {
    if var callers = try? self.callers(includeHidden: false) {
        callers = callers.sorted(by: { $0.number < $1.number })
        for caller in callers {
            autoreleasepool {
                guard let name = caller.name else { return }
                if caller.isHidden {
                    context.removeIdentificationEntry(withPhoneNumber: caller.number)
                } else {
                    context.addIdentificationEntry(withNextSequentialPhoneNumber: caller.number, label: name)
                }
                context.completeRequest()
            }
        }
    }
    }
}

extension CallDirectoryHandler: CXCallDirectoryExtensionContextDelegate {

    func requestFailed(for extensionContext: CXCallDirectoryExtensionContext, withError error: Error) {
    }
}

而且我还有以下代码正在检查是否启用了呼叫阻止和识别：

    private func checkCallIdentificationPermission() {
    CXCallDirectoryManager.sharedInstance.getEnabledStatusForExtension(withIdentifier: UMCConfiguration.callKitExtensionIdentifier.value ?? "MYEXTID") { [unowned self] (status, error) in
        if let error = error {
            logger.error("\(#function) \(error.localizedDescription)")
        } else {
            switch status {
            case .unknown, .disabled:
                self.showAlertToEnableCallblockingFeature()
            default:
                break
            }
        }
    }
}

扩展中使用的数据模型也添加到呼叫扩展的构建阶段，但无论如何我仍然无法在汽车显示屏上看到用户名而不是数字？这个主题的文档很差，我会说根本不存在，所以欢迎任何提示。

标签： swiftobjective-ccallkitcall-directory-extension