VoIP 推送

在 iOS 8 中，Apple 推出了 PushKit 和 VoIP 推送——一种新型的推送通知。在标准推送功能的基础上，VoIP 推送允许应用在向用户显示通知之前执行代码。

重要提示

您只能在生产模式下创建 VoIP 证书，而不能在开发模式下创建。因此，在 Pushwoosh iOS 应用配置中，您应始终为 VoIP 证书使用 Production 网关。

1. 将 PushwooshVoIP 模块添加到您的项目中。

Swift Package Manager

重要提示

模块 PushwooshFramework、PushwooshCore、PushwooshBridge 和 PushwooshLiveActivities 是必需的。

Cocoapods

# Uncomment the next line to define a global platform for your project
# platform :ios, '9.0'

target 'MyApp' do
  # Comment the next line if you don't want to use dynamic frameworks
  use_frameworks!

  pod 'PushwooshXCFramework'
  pod 'PushwooshFramework/PushwooshVoIP'

end

2. 在 Signing & Capabilities 选项卡中，勾选复选框以添加 Voice over IP 功能，如下方截图所示：

3. 按照以下代码所示，初始化 PushwooshVoIP 模块。

import UIKit
import PushwooshFramework
import PushwooshVoIP
import CallKit
import PushKit

@main
class AppDelegate: UIResponder, UIApplicationDelegate, PWVoIPCallDelegate {

    func application(_ application: UIApplication,
                     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

        /// Initializes the Pushwoosh VoIP module.
        ///
        /// - Parameters:
        ///   - supportVideo: A Boolean value indicating whether video calls are supported.
        ///   - ringtoneSound: The name of the custom ringtone sound file to be used for incoming calls (e.g. `"mySound.caf"`).
        ///   - handleTypes: The type of call handle to support. Possible values:
        ///     - `1` – Generic
        ///     - `2` – Phone number
        ///     - `3` – Email address
        Pushwoosh.VoIP.initializeVoIP(true, ringtoneSound: "mySound.caf", handleTypes: 1)

        // Set delegate to receive VoIP call events
        Pushwoosh.VoIP.delegate = self

        return true
    }

    // MARK: - Required PWVoIPCallDelegate Callbacks

    func voipDidReceiveIncomingCall(payload: PushwooshVoIP.PWVoIPMessage) {
        // Handle incoming VoIP push
    }

    func pwProviderDidReset(_ provider: CXProvider) {
        // Handle provider reset
    }

    func pwProviderDidBegin(_ provider: CXProvider) {
        // Handle provider activation
    }
}

4. PWVoIPCallDelegate 协议定义了处理 VoIP 通话生命周期和 CallKit 交互所需的必需和可选回调。

@objc public protocol PWVoIPCallDelegate: NSObjectProtocol {

    /// Called when an incoming VoIP push is received.
    @objc func voipDidReceiveIncomingCall(payload: PushwooshVoIP.PWVoIPMessage)

    /// Optional: Called when the incoming call was successfully reported to CallKit.
    @objc optional func voipDidReportIncomingCallSuccessfully(voipMessage: PushwooshVoIP.PWVoIPMessage)

    /// Optional: Called when reporting the incoming call to CallKit failed.
    @objc optional func voipDidFailToReportIncomingCall(error: Error)

    /// Optional: Called when a new outgoing call is started.
    @objc optional func startCall(_ provider: CXProvider, perform action: CXStartCallAction)

    /// Optional: Called when an active call is ended.
    @objc optional func endCall(_ provider: CXProvider, perform action: CXEndCallAction, voipMessage: PushwooshVoIP.PWVoIPMessage?)

    /// Optional: Called when an incoming call is answered.
    @objc optional func answerCall(_ provider: CXProvider, perform action: CXAnswerCallAction, voipMessage: PushwooshVoIP.PWVoIPMessage?)

    /// Optional: Called when the call is muted or unmuted.
    @objc optional func mutedCall(_ provider: CXProvider, perform action: CXSetMutedCallAction)

    /// Optional: Called when the call is held or unheld.
    @objc optional func heldCall(_ provider: CXProvider, perform action: CXSetHeldCallAction)

    /// Optional: Called when a DTMF tone is played.
    @objc optional func playDTMF(_ provider: CXProvider, perform action: CXPlayDTMFCallAction)

    /// Called when the CallKit provider is reset.
    @objc func pwProviderDidReset(_ provider: CXProvider)

    /// Called when the CallKit provider begins.
    @objc func pwProviderDidBegin(_ provider: CXProvider)

    /// Optional: Provides the CallKit call controller instance.
    @objc optional func returnedCallController(_ controller: CXCallController)

    /// Optional: Provides the CallKit provider instance.
    @objc optional func returnedProvider(_ provider: CXProvider)

    /// Optional: Called when the audio session is activated.
    @objc optional func activatedAudioSession(_ provider: CXProvider, didActivate audioSession: AVAudioSession)

    /// Optional: Called when the audio session is deactivated.
    @objc optional func deactivatedAudioSession(_ provider: CXProvider, didDeactivate audioSession: AVAudioSession)
}

5. 根据 VoIP 证书配置指南 将您的 VoIP 证书上传到 Pushwoosh Control Panel，并选择 Production 网关。

就是这样！

注意

与标准推送不同，VoIP 推送不会播放通知声音或显示提醒。但是，它们会在后台唤醒您的应用，从而允许您安排本地通知。

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