方法一:

WFRecScreenDemo

只能錄制iOS頁(yè)面,unity頁(yè)面為黑屏

方法二:

ZYSScreenAudioRecorder

類(lèi)似于方法一

方法三:

Unity3D研究院之IOS截屏 話筒錄音 錄制截屏視頻保存沙盒（另類(lèi)實(shí)現(xiàn)方法）

OC的代碼截圖只有UI部分，U3D截圖只有3D部分。為了解決這個(gè)問(wèn)題截屏?xí)r我們需要把這兩張圖片合成為一張全新的圖片。這里再說(shuō)一下用蘋(píng)果私有API截圖是可以同時(shí)將UI部分U3D部分保存為一張圖片和悦，不過(guò)有可能APPStore不能審核通過(guò)所以大家還是老老實(shí)實(shí)用合并的方法來(lái)做庄萎。

unity腳本,如圖所示.添加

屏幕快照 2017-10-18 上午8.56.38.png

using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
using UnityEngine.UI;

public class NewBehaviourScript : MonoBehaviour {

    Button _start;
    Button _stop;
    Button _share;
    // Use this for initialization
    void Start () {
        _start = this.transform.Find("Start").GetComponent<Button>();
        _stop = this.transform.Find("Stop").GetComponent<Button>();
        _share = this.transform.Find("Share").GetComponent<Button>();

        _start.onClick.AddListener(StartVideo);
        _stop.onClick.AddListener(StopVideo);
        _share.onClick.AddListener (ShareVideo);      

    }


    private void StopVideo()
    {
#if UNITY_ANDROID
        ShareREC.StopRecorder();
#elif UNITY_IOS
        StopV();
#endif      
    }
    [DllImport("__Internal")]
    public static extern void StopV();
    [DllImport("__Internal")]
    public static extern void StartV();
    [DllImport("__Internal")]
    public static extern void SharaV();
    private void ShareVideo()
    {
#if UNITY_ANDROID
        ShareREC.ShowShare();
#elif UNITY_IOS
        StartV();
#endif    
    }

    private void StartVideo()
    {
#if UNITY_ANDROID
        ShareREC.StartRecorder();
#elif UNITY_IOS
        StartV();
#endif    
    }
    [DllImport("__Internal")]
    private static extern void unityToIOS (string str);

    void OnGUI()
    {
        // 當(dāng)點(diǎn)擊按鈕后俺夕，調(diào)用外部方法
        if (GUI.Button (new Rect (300, 300, 300, 100), "跳轉(zhuǎn)到IOS界面")) {
            // Unity調(diào)用ios函數(shù)，同時(shí)傳遞數(shù)據(jù)
            unityToIOS ("Hello IOS");
        }
    }

    // Update is called once per frame
    void Update () {
        
    }
    int count = 0;
    //在這里OC的代碼通知U3D截屏
    void StartScreenshot(string str)
    {
        Application.CaptureScreenshot(count +"u3d.JPG");
        count++;
    }
}

然后我們將這個(gè)Unity3D工程導(dǎo)出成IOS的項(xiàng)目 犀盟。Unity會(huì)生成對(duì)應(yīng)的XCODE工程拣度。我們寫(xiě)一個(gè)全新的ViewController覆蓋在U3D生成的OPGL viewController之上，用于寫(xiě)UI高級(jí)控件，接著打開(kāi)UnityAppController.mm文件抗果。

    //--------------------下面的MyViewController就是我們新寫(xiě)的Contoller----------------
    YourViewController * myView =  [[YourViewController alloc] init];
    [UnityGetGLViewController().view addSubview:myView.view];
    --------------------上面的MyViewController就是我們新寫(xiě)的Contoller----
    [UnityGetGLViewController().view bringSubviewToFront:myView.view];

MyViewController.h

//
//  MyViewController.h
//  Unity-iPhone
//
//  Created by guopenglai on 2017/10/17.
//

#import <UIKit/UIKit.h>
#import "Foundation/Foundation.h"
#import "AVFoundation/AVFoundation.h"
#import "MediaPlayer/MediaPlayer.h"
@interface MyViewController : UIViewController

@end

MyViewController.m

#import "MyViewController.h"

@interface MyViewController ()<AVAudioRecorderDelegate,AVCaptureVideoDataOutputSampleBufferDelegate,AVCaptureAudioDataOutputSampleBufferDelegate>
{
    //時(shí)間計(jì)時(shí)器
    NSTimer *_timer;
    int _count;
    UILabel * _labe;
    //錄音
    AVAudioRecorder * _recorder;
    //讀取動(dòng)畫(huà)
    UITextView *_sharedLoadingTextView;
    UIActivityIndicatorView* _sharedActivityView;
    
}
@end

@implementation MyViewController

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor redColor];
    UIWindow *screenWindow = [[UIApplication sharedApplication] keyWindow];
    UIGraphicsBeginImageContext(screenWindow.frame.size);
    [screenWindow.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil);
    
#if !TARGET_IPHONE_SIMULATOR
    self.view.backgroundColor = [UIColor clearColor];
#else
    self.view.backgroundColor = [UIColor clearColor];
#endif
    
    UIButton * start = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [start setFrame:CGRectMake(0, 100, 200, 30)];
    [start setTitle:@"開(kāi)始截屏" forState:UIControlStateNormal];
    [start addTarget:self action:@selector(startPress) forControlEvents:UIControlEventTouchDown];
    
    UIButton * end = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [end setFrame:CGRectMake(0, 150, 200, 30)];
    [end setTitle:@"結(jié)束截屏（開(kāi)始錄制視頻）" forState:UIControlStateNormal];
    [end addTarget:self action:@selector(endPress) forControlEvents:UIControlEventTouchUpInside];
    
    [self.view addSubview:start];
    [self.view addSubview:end];
    
    _labe = [[UILabel alloc]initWithFrame:CGRectMake(30, 200, 300, 30)];
    _labe.text = [NSString stringWithFormat:@"%@%d",@"雨松MOMO開(kāi)始計(jì)時(shí)：===  ",_count];
    [self.view addSubview:_labe];
    
    //初始化錄音
    [self prepareToRecord];
}

-(void)addLoading:(NSString*) info
{
    //頂部文本視圖
    _sharedLoadingTextView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, 130, 130)] ;
    [_sharedLoadingTextView setBackgroundColor:[UIColor blackColor]];
    [_sharedLoadingTextView setText:info];
    [_sharedLoadingTextView setTextColor:[UIColor whiteColor]];
    [_sharedLoadingTextView setTextAlignment:UITextAlignmentCenter];
    [_sharedLoadingTextView setFont:[UIFont systemFontOfSize:15]];
    _sharedLoadingTextView.textAlignment = UITextAlignmentCenter;
    _sharedLoadingTextView.alpha = 0.8f;
    _sharedLoadingTextView.center = self.view.center;
    _sharedLoadingTextView.layer.cornerRadius = 10;
    _sharedLoadingTextView.layer.masksToBounds = YES;
    
    //創(chuàng)建Loading動(dòng)畫(huà)視圖
    _sharedActivityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray] ;
    //設(shè)置動(dòng)畫(huà)視圖的風(fēng)格筋帖，這里設(shè)定它為白色
    _sharedActivityView.activityIndicatorViewStyle=UIActivityIndicatorViewStyleWhiteLarge;
    //設(shè)置它顯示的區(qū)域
    _sharedActivityView.frame = CGRectMake(0,0, 320, 480);
    
    _sharedActivityView.center = self.view.center;
    //開(kāi)始播放動(dòng)畫(huà)
    [_sharedActivityView startAnimating];
    
    [self.view addSubview:_sharedLoadingTextView];
    [self.view addSubview:_sharedActivityView];
    
}

-(void)removeLoading
{
    [_sharedLoadingTextView removeFromSuperview];
    [_sharedActivityView removeFromSuperview];
}

-(void)startPress
{
    
    _count = 0;
    _timer = [NSTimer scheduledTimerWithTimeInterval: 0.1
                                              target: self
                                            selector: @selector(heartBeat:)
                                            userInfo: nil
                                             repeats: YES];
    
    //開(kāi)始錄音
    [_recorder record];
}

-(void)endPress
{
    NSLog(@"開(kāi)始制作視頻");
    
    if(_timer != nil)
    {
        [_timer invalidate];
        _timer = nil;
        
        [self addLoading:@"開(kāi)始制作視頻"];
        [NSThread detachNewThreadSelector:@selector(startThreadMainMethod) toTarget:self withObject:nil];
    }
}

-(void)startThreadMainMethod
{
    //在這里制作視頻
    NSMutableArray *_array = [[NSMutableArray alloc]init];
    NSString * Path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
    for(int i =0; i< _count; i++)
    {
        
        //讀取存在沙盒里面的文件圖片
        NSString *  _pathSecond = [NSString stringWithFormat:@"%@/%d%@",Path,i,@".JPG"];
        NSString *  _pathFirst = [NSString stringWithFormat:@"%@/%d%@",Path,i,@"u3d.JPG"];
        
        //因?yàn)槟玫降氖莻€(gè)路徑 把它加載成一個(gè)data對(duì)象
        NSData *data0=[NSData dataWithContentsOfFile:_pathFirst];
        NSData *data1=[NSData dataWithContentsOfFile:_pathSecond];
        //直接把該 圖片讀出來(lái)
        UIImage *img0=[UIImage imageWithData:data0];
        UIImage *img1=[UIImage imageWithData:data1];
        
        [_array addObject:[self MergerImage : img0 : img1]];
    }
    
    Path = [NSString stringWithFormat:@"%@/%@%@",Path,@"veido",@".MP4"];
    
    [_recorder stop];
    [self writeImages:_array ToMovieAtPath:Path withSize: CGSizeMake(320, 480) inDuration:_count*0.1 byFPS:10];
    [self removeLoading];
    
    NSLog(@"recorder successfully");
//    UIAlertView *recorderSuccessful = [[UIAlertView alloc] initWithTitle:@"" message:@"視頻錄制成功"
//                                                                delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
//    [recorderSuccessful show];
    
}

- (void) heartBeat: (NSTimer*) timer
{
    _labe.text = [NSString stringWithFormat:@"%@%d",@"雨松MOMO開(kāi)始計(jì)時(shí)：===  ",_count];
    
    //這個(gè)是私有API運(yùn)氣不好會(huì)被拒接
    //這個(gè)方法比較給力 可以直接把ios前端和 U3D中的所有圖像都截取出來(lái)
    //extern CGImageRef UIGetScreenImage();
    //UIImage *image = [UIImage imageWithCGImage:UIGetScreenImage()];
    //UIImageWriteToSavedPhotosAlbum(image,nil,nil,nil);
    
    //保險(xiǎn)起見(jiàn)還是用如下方法截圖
    //這個(gè)方法不能截取U3D的圖像
    UIWindow *screenWindow = [[UIApplication sharedApplication]keyWindow];
    UIGraphicsBeginImageContext(screenWindow.frame.size);
    [screenWindow.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    NSData *data;
    
    if (UIImagePNGRepresentation(image) == nil)
    {
        data = UIImageJPEGRepresentation(image, 1);
    }
    else
    {
        data = UIImagePNGRepresentation(image);
    }
    
    NSFileManager *fileManager = [NSFileManager defaultManager];
    
    NSString * Path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
    
    [fileManager createDirectoryAtPath:Path withIntermediateDirectories:YES attributes:nil error:nil];
    Path = [NSString stringWithFormat:@"%@/%d%@",Path,_count,@".JPG"];
    [fileManager createFileAtPath:Path contents:data attributes:nil];
    
    //通知U3D開(kāi)始截屏
    UnitySendMessage("Canvas","StartScreenshot","");
//注意unity腳本綁定的位置
    
    _count++;
}

//合并圖片，把ios前景圖片和U3D圖片合并在一起
-(UIImage*) MergerImage:(UIImage*) firstImg:(UIImage*) secondImg
{
    
    UIGraphicsBeginImageContext(CGSizeMake(320, 480));
    
    [firstImg drawInRect:CGRectMake(0, 0, firstImg.size.width, firstImg.size.height)];
    
    [secondImg drawInRect:CGRectMake(0, 0, secondImg.size.width, secondImg.size.height)];
    
    UIImage *resultImage=UIGraphicsGetImageFromCurrentImageContext();
    
    UIGraphicsEndImageContext();
    
    return resultImage;
    
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (CVPixelBufferRef) pixelBufferFromCGImage: (CGImageRef) image andSize:(CGSize) size
{
    NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
                             [NSNumber numberWithBool:YES], kCVPixelBufferCGImageCompatibilityKey,
                             [NSNumber numberWithBool:YES], kCVPixelBufferCGBitmapContextCompatibilityKey,
                             nil];
    CVPixelBufferRef pxbuffer = NULL;
    
    CVReturn status = CVPixelBufferCreate(kCFAllocatorDefault, size.width,
                                          size.height, kCVPixelFormatType_32ARGB, (__bridge CFDictionaryRef) options,
                                          &pxbuffer);
    NSParameterAssert(status == kCVReturnSuccess && pxbuffer != NULL);
    
    CVPixelBufferLockBaseAddress(pxbuffer, 0);
    void *pxdata = CVPixelBufferGetBaseAddress(pxbuffer);
    NSParameterAssert(pxdata != NULL);
    
    CGColorSpaceRef rgbColorSpace = CGColorSpaceCreateDeviceRGB();
    CGContextRef context = CGBitmapContextCreate(pxdata, size.width,
                                                 size.height, 8, 4*size.width, rgbColorSpace,
                                                 kCGImageAlphaNoneSkipFirst);
    NSParameterAssert(context);
    CGContextConcatCTM(context, CGAffineTransformMakeRotation(0));
    CGContextDrawImage(context, CGRectMake(0, 0, CGImageGetWidth(image),
                                           CGImageGetHeight(image)), image);
    CGColorSpaceRelease(rgbColorSpace);
    CGContextRelease(context);
    
    CVPixelBufferUnlockBaseAddress(pxbuffer, 0);
    
    return pxbuffer;
}

- (void) writeImages:(NSArray *)imagesArray ToMovieAtPath:(NSString *) path withSize:(CGSize) size
          inDuration:(float)duration byFPS:(int32_t)fps
{
    
    //在這里將之前截取的圖片合并成一個(gè)視頻
    //Wire the writer:
    NSError *error = nil;
    AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL:[NSURL fileURLWithPath:path]
                                                            fileType:AVFileTypeQuickTimeMovie
                                                               error:&error] ;
    NSParameterAssert(videoWriter);
    
    NSDictionary *videoSettings = [NSDictionary dictionaryWithObjectsAndKeys:
                                   AVVideoCodecH264, AVVideoCodecKey,
                                   [NSNumber numberWithInt:size.width], AVVideoWidthKey,
                                   [NSNumber numberWithInt:size.height], AVVideoHeightKey,
                                   nil];
    
    AVAssetWriterInput* videoWriterInput = [AVAssetWriterInput
                                             assetWriterInputWithMediaType:AVMediaTypeVideo
                                             outputSettings:videoSettings] ;
    
    AVAssetWriterInputPixelBufferAdaptor *adaptor = [AVAssetWriterInputPixelBufferAdaptor
                                                     assetWriterInputPixelBufferAdaptorWithAssetWriterInput:videoWriterInput
                                                     sourcePixelBufferAttributes:nil];
    NSParameterAssert(videoWriterInput);
    NSParameterAssert([videoWriter canAddInput:videoWriterInput]);
    [videoWriter addInput:videoWriterInput];
    
    //Start a session:
    [videoWriter startWriting];
    [videoWriter startSessionAtSourceTime:kCMTimeZero];
    
    //Write some samples:
    CVPixelBufferRef buffer = NULL;
    
    int frameCount = 0;
    
    int imagesCount = [imagesArray count];
    float averageTime = duration/imagesCount;
    int averageFrame = (int)(averageTime * fps);
    
    for(UIImage * img in imagesArray)
    {
        buffer = [self pixelBufferFromCGImage:[img CGImage] andSize:size];
        
        BOOL append_ok = NO;
        int j = 0;
        while (!append_ok && j < 30)
        {
            if (adaptor.assetWriterInput.readyForMoreMediaData)
            {
                printf("appending %d attemp %d\n", frameCount, j);
                
                CMTime frameTime = CMTimeMake(frameCount,(int32_t) fps);
                float frameSeconds = CMTimeGetSeconds(frameTime);
                NSLog(@"frameCount:%d,kRecordingFPS:%d,frameSeconds:%f",frameCount,fps,frameSeconds);
                append_ok = [adaptor appendPixelBuffer:buffer withPresentationTime:frameTime];
                
                if(buffer)
                    [NSThread sleepForTimeInterval:0.05];
            }
            else
            {
                printf("adaptor not ready %d, %d\n", frameCount, j);
                [NSThread sleepForTimeInterval:0.1];
            }
            j++;
        }
        if (!append_ok) {
            printf("error appending image %d times %d\n", frameCount, j);
        }
        
        frameCount = frameCount + averageFrame;
    }
    
    //Finish the session:
    [videoWriterInput markAsFinished];
    [videoWriter finishWriting];
    NSLog(@"finishWriting");
    
    //將靜態(tài)視頻 和聲音合并成一個(gè)新視頻
    [self CompileFilesToMakeMovie];
    
}

- (void) prepareToRecord

{
    
    AVAudioSession *audioSession = [AVAudioSession sharedInstance];
    
    NSError *err = nil;
    
    [audioSession setCategory :AVAudioSessionCategoryPlayAndRecord error:&err];
    
    if(err){
        
        NSLog(@"audioSession: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
        
        return;
        
    }
    
    [audioSession setActive:YES error:&err];
    
    err = nil;
    
    if(err){
        
        NSLog(@"audioSession: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
        
        return;
        
    }
    
    NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];
    
    [recordSetting setValue :[NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];
    
    [recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
    
    [recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
    
    [recordSetting setValue :[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];
    
    [recordSetting setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsBigEndianKey];
    
    [recordSetting setValue :[NSNumber numberWithBool:NO] forKey:AVLinearPCMIsFloatKey];
    
    // Create a new dated file
    NSString * recorderFilePath = [NSString stringWithFormat:@"%@/%@.caf", [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"], @"sound"] ;
    NSURL *url = [NSURL fileURLWithPath:recorderFilePath];
    err = nil;
    _recorder = [[ AVAudioRecorder alloc] initWithURL:url settings:recordSetting error:&err];
    if(!_recorder){
        NSLog(@"recorder: %@ %d %@", [err domain], [err code], [[err userInfo] description]);
        UIAlertView *alert =
        [[UIAlertView alloc] initWithTitle: @"Warning"
                                   message: [err localizedDescription]
                                  delegate: nil
                         cancelButtonTitle:@"OK"
                         otherButtonTitles:nil];
        [alert show];
        return;
    }
    //prepare to record
    [_recorder setDelegate:self];
    [_recorder prepareToRecord];
    _recorder.meteringEnabled = YES;
    BOOL audioHWAvailable = audioSession.inputIsAvailable;
    if (! audioHWAvailable) {
        UIAlertView *cantRecordAlert =
        [[UIAlertView alloc] initWithTitle: @"Warning"
                                   message: @"Audio input hardware not available"
                                  delegate: nil
                         cancelButtonTitle:@"OK"
                         otherButtonTitles:nil];
        [cantRecordAlert show];
        return;
    }
}

//代理 這里可以監(jiān)聽(tīng)錄音成功
- (void)audioRecorderDidFinishRecording:(AVAudioRecorder *) aRecorder successfully:(BOOL)flag
{
    //    NSLog(@"recorder successfully");
    //    UIAlertView *recorderSuccessful = [[UIAlertView alloc] initWithTitle:@"" message:@"錄音成功"
    //                                                                delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
    //    [recorderSuccessful show];
    //    [recorderSuccessful release];
}

//代理 這里可以監(jiān)聽(tīng)錄音失敗
- (void)audioRecorderEncodeErrorDidOccur:(AVAudioRecorder *)arecorder error:(NSError *)error
{
    
    //    UIAlertView *recorderFailed = [[UIAlertView alloc] initWithTitle:@"" message:@"發(fā)生錯(cuò)誤"
    //                                                            delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
    //    [recorderFailed show];
    //    [recorderFailed release];
}

-(void)CompileFilesToMakeMovie
{
    //這個(gè)方法在沙盒中把靜態(tài)圖片組成的視頻 與錄制的聲音合并成一個(gè)新視頻
    AVMutableComposition* mixComposition = [AVMutableComposition composition];
    
    NSString* audio_inputFileName = @"sound.caf";
    NSString* audio_inputFilePath = [NSString stringWithFormat:@"%@/%@", [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"], audio_inputFileName] ;
    NSURL*    audio_inputFileUrl = [NSURL fileURLWithPath:audio_inputFilePath];
    
    NSString* video_inputFileName = @"veido.mp4";
    NSString* video_inputFilePath = [NSString stringWithFormat:@"%@/%@", [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"], video_inputFileName] ;
    NSURL*    video_inputFileUrl = [NSURL fileURLWithPath:video_inputFilePath];
    
    NSString* outputFileName = @"outputVeido.mov";
    NSString* outputFilePath = [NSString stringWithFormat:@"%@/%@", [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"], outputFileName] ;
    NSURL*    outputFileUrl = [NSURL fileURLWithPath:outputFilePath];
    
    if ([[NSFileManager defaultManager] fileExistsAtPath:outputFilePath])
        [[NSFileManager defaultManager] removeItemAtPath:outputFilePath error:nil];
    
    CMTime nextClipStartTime = kCMTimeZero;
    
    AVURLAsset* videoAsset = [[AVURLAsset alloc]initWithURL:video_inputFileUrl options:nil];
    CMTimeRange video_timeRange = CMTimeRangeMake(kCMTimeZero,videoAsset.duration);
    AVMutableCompositionTrack *a_compositionVideoTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
    [a_compositionVideoTrack insertTimeRange:video_timeRange ofTrack:[[videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:nextClipStartTime error:nil];
    
    AVURLAsset* audioAsset = [[AVURLAsset alloc]initWithURL:audio_inputFileUrl options:nil];
    CMTimeRange audio_timeRange = CMTimeRangeMake(kCMTimeZero, audioAsset.duration);
    AVMutableCompositionTrack *b_compositionAudioTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid];
    [b_compositionAudioTrack insertTimeRange:audio_timeRange ofTrack:[[audioAsset tracksWithMediaType:AVMediaTypeAudio] objectAtIndex:0] atTime:nextClipStartTime error:nil];
    
    AVAssetExportSession* _assetExport = [[AVAssetExportSession alloc] initWithAsset:mixComposition presetName:AVAssetExportPresetHighestQuality];
    _assetExport.outputFileType = @"com.apple.quicktime-movie";
    _assetExport.outputURL = outputFileUrl;
    
    [_assetExport exportAsynchronouslyWithCompletionHandler:
     ^(void ) {
     }
     ];
    
}
@end

卡的一筆

方法四:

使用replaykit

import <ReplayKit/ReplayKit.h>記得Linked Frameworks and Libraries中導(dǎo)入

extern "C"
{
    void StartV()
    {

        NSLog(@"開(kāi)始");
        //如果還沒(méi)有開(kāi)始錄制冤馏，判斷系統(tǒng)是否支持
        if ([RPScreenRecorder sharedRecorder].available) {
            NSLog(@"OK");
            //如果支持日麸，就使用下面的方法可以啟動(dòng)錄制回放
            [[RPScreenRecorder sharedRecorder] startRecordingWithMicrophoneEnabled:YES handler:^(NSError * _Nullable error) {
                NSLog(@"%@", error);
                //處理發(fā)生的錯(cuò)誤，如設(shè)用戶權(quán)限原因無(wú)法開(kāi)始錄制等
            }];
        } else {
            NSLog(@"錄制回放功能不可用");
        }
    }
    void StopV()
    {

        NSLog(@"結(jié)束");
        //停止錄制回放逮光，并顯示回放的預(yù)覽代箭，在預(yù)覽中用戶可以選擇保存視頻到相冊(cè)中、放棄涕刚、或者分享出去
        [[RPScreenRecorder sharedRecorder] stopRecordingWithHandler:^(RPPreviewViewController * _Nullable previewViewController, NSError * _Nullable error) {
            if (error) {
                NSLog(@"%@", error);
                //處理發(fā)生的錯(cuò)誤嗡综，如磁盤(pán)空間不足而停止等
            }
            if (previewViewController) {
                //設(shè)置預(yù)覽頁(yè)面到代理
                previewViewController.previewControllerDelegate = GetAppController();
                [GetAppController().window.rootViewController presentViewController:previewViewController animated:YES completion:nil];
            }
        }];
    }
    void SharaV()
    {
        
        //通知U3D開(kāi)始截屏
        UnitySendMessage("Canvas","StartScreenshot","");
        NSString * Path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
        
        NSString *  _pathFirst = [NSString stringWithFormat:@"%@/%ld%@",Path,GetAppController().frameCount,@"u3d.JPG"];
        //因?yàn)槟玫降氖莻€(gè)路徑 把它加載成一個(gè)data對(duì)象
        NSData *data0=[NSData dataWithContentsOfFile:_pathFirst];
        //直接把該 圖片讀出來(lái)
        UIImage *img0=[UIImage imageWithData:data0];
        UIImageWriteToSavedPhotosAlbum(img0, GetAppController(), @selector(image:didFinishSavingWithError:contextInfo:), NULL);
    }
    void unityToIOS(char* str)
    {
        
    }
}
- (void)image: (UIImage *) image didFinishSavingWithError: (NSError *) error contextInfo: (void *) contextInfo
{
    NSString *msg = nil ;
    
    if(error != NULL){
        
        msg = @"保存圖片失敗" ;
        
    }else{
        
        msg = @"保存圖片成功" ;
        
    }
    
}