ReplayKit返回错误"RPRecordingErrorFailedToStart“

Question

我正在尝试包括录制功能到我的C++为基础的游戏与ReplayKit。我检查游戏代码中的iOS版本是9.0或更高，如果是的话，我会调用RecordReplayIOS::startRecording()，然后ReplayKit应该开始录制。

由于某些原因，startRecordingWithMicrophoneEnabled函数总是返回一个错误-5803，根据API文档，这意味着RPRecordingErrorFailedToStart。你知道我做错了什么吗？

RecordReplayIOS.hpp

#ifndef __RECORD_REPLAY_IOS_HPP__
#define __RECORD_REPLAY_IOS_HPP__

class RecordReplayIOS {
public:
    static bool canRecord();
    static void startRecording();
    static void stopRecording();
};

#endif

RecordReplayIOS.mm

#include "RecordReplay_ios.hpp"
#include "ReplayKit/ReplayKit.h"

@interface Recorder : NSObject
+(void)startRecording;
+(void)stopRecording;
@end

#define SYSTEM_VERSION_LESS_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)

bool RecordReplayIOS::canRecord() {
    // ReplayKit needs at least iOS 9
    if (SYSTEM_VERSION_LESS_THAN(@"9.0")) {
        return false;
    }
    return true;
}

void RecordReplayIOS::startRecording() {
    [Recorder startRecording];
}

void RecordReplayIOS::stopRecording() {
    [Recorder stopRecording];
}

@implementation Recorder

+(void)startRecording {
    RPScreenRecorder* recorder = RPScreenRecorder.sharedRecorder;
    recorder.delegate = self;
    [recorder startRecordingWithMicrophoneEnabled:false handler:^(NSError * error) {
        if(error != nil) {
            NSString* desc = error.description;
            return;
        }
    }];
}

+(void)stopRecording {
    RPScreenRecorder* recorder = RPScreenRecorder.sharedRecorder;
    [recorder stopRecordingWithHandler:^(RPPreviewViewController *previewViewController, NSError *error) {
        if(error != nil) {
            NSString* desc = error.description;
            return;
        }
        if(previewViewController) {
            //do stuff...    
        }
    }];
}

@end

Answer 1

代码没有什么问题。似乎我只是尝试将ReplayKit与一个太老的iPad一起使用。显然，ReplayKit需要A7或A8处理器。我的iPad 4有A6处理器，它根本不适用于ReplayKit。

检查设备是否可以使用ReplayKit的正确方法是查询RPScreenRecorder.sharedRecorder.available。如果设备支持ReplayKit，则返回true。