ios - Vidyo 应用程序在 Swift 上崩溃

Question

我使用 Swift 创建了一个 Vidyo iOS 应用程序并遵循 this tutorial .

但我在以下方面遇到应用程序崩溃:

connector = VCConnector(UnsafeMutableRawPointer(&vidyoView),
                                viewStyle: .default,
                                remoteParticipants: 4,
                                logFileFilter: UnsafePointer("warning"),
                                logFileName: UnsafePointer(""),
                                userData: 0)

以下是调试器日志:

ERROR: LmiFile: [System thread]: /tmp/SDK.Release.TRINITY_4_1_20_3.build.tO3KysfAv5/source/SDK/Lmi/Os/LmiFile.c:132: LmiFileOpen_: Error opening file v\217\206: Operation not permitted

Assertion failed: (newVal >= 0), function LmiSharedPtrRefCountDecUseCount, file /tmp/SDK.Release.TRINITY_4_1_20_3.build.tO3KysfAv5/source/SDK/Lmi/VidyoClient/../../../SDK/Lmi/Os/LmiSharedPtrInline.h, line 51.

有人能帮忙吗？

Answer 1

教程是错误的。作为常规 Swift 字符串传入 logFileFilter: 和 logFileName:。

connector = VCConnector(UnsafeMutableRawPointer(&vidyoView),
                                viewStyle: .default,
                                remoteParticipants: 4,
                                logFileFilter: "warning",
                                logFileName: "",
                                userData: 0)

logFileFilter: 和logFileName: 的参数类型是const char*。您可以将一个字符串传递给这种类型的参数，它会为您进行转换。

来源:passing String to const char* parameter

You should be able to pass a String directly to a C function expecting const char * and it will be automatically converted to a null-terminated UTF-8 string