ios 自带录屏框架replayKit的使用

前几个月第一次做关于ios录屏的功能,在网上看到有关于replaykit的介绍,总结之后集成到项目中,初步达到了项目要求的录屏的功能,但是在后续的测试发现,有录屏出现黑屏的情况,也有不能保存到系统系统相册的情况,后来及时改改逻辑,调用顺序就解决,现在是没什么问题了,但是感觉也不是太稳定,还没正式的使用,还不能确定不会出现问题,现在,把代码贴出来,欢迎指导指正

replaykit是ios9后出的,所以replaykit支持ios9+录屏,

//开始录屏
- (void)StartRecoder
{
//将开启录屏功能的代码放在主线程执行dispatch_async(dispatch_get_main_queue(), ^{if ([[RPScreenRecorder sharedRecorder] isAvailable] && [self isSystemVersionOk]) { //判断硬件和ios版本是否支持录屏NSLog(@"支持ReplayKit录制");//这是录屏的类RPScreenRecorder* recorder = RPScreenRecorder.sharedRecorder;recorder.delegate = self;__weak typeof (self)weakSelf = self;MBProgressHUD *hud;hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];hud.maskView.hidden = NO;hud.labelText = NSLocalizedString(@"正在启动录屏...", @"HUD loading title");[self delay:8 execute:^{if (hud.hidden == NO) {hud.hidden = YES;[self showAlert:@"录屏启动失败" andMessage:@"请重试"];}}];//在此可以设置是否允许麦克风（传YES即是使用麦克风，传NO则不是用麦克风）recorder.microphoneEnabled = YES;recorder.cameraEnabled = YES;//开起录屏功能[recorder startRecordingWithHandler:^(NSError * _Nullable error) {//在此可以设置是否允许麦克风（传YES即是使用麦克风，传NO则不是用麦克风）(ios 后被废弃了 下面的这个开始录屏)
//            [recorder startRecordingWithMicrophoneEnabled:YES handler:^(NSError * _Nullable error) {recorder.microphoneEnabled = YES;if (error) {hud.hidden = YES;IsDecoderScreen = 0;MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];hud.mode = MBProgressHUDModeText;hud.labelText = @"录屏启动失败!\n请重试";hud.margin = 10.f;hud.yOffset = 150.f;hud.removeFromSuperViewOnHide = YES;[hud hide:YES afterDelay:4];NSLog(@"========%@",error.description);_DecoderButton.selected = NO;} else {if (recorder.recording) {_DecoderButton.selected = YES;//记录是否开始录屏 系统也有一个再带的检测是否在录屏的方法 (@property (nonatomic, readonly, getter=isRecording) BOOL recording;)IsDecoderScreen = 1;hud.hidden = YES;}}}];} else {[self showAlert:@"设备不支持录制" andMessage:@"升级ios系统"];return;}});}

//结束录屏
- (void)stopDecoder
{   __weak typeof (self)weakSelf = self;[[RPScreenRecorder sharedRecorder] stopRecordingWithHandler:^(RPPreviewViewController *previewViewController, NSError *  error){_RPPreview = previewViewController;if (error) {NSLog(@"这里关闭有误%@",error.description);} else {[_RPPreview setPreviewControllerDelegate:self];_DecoderButton.selected = NO;IsDecoderScreen = 0;
//在结束录屏时显示预览画面
[weakSelf showVideoPreviewController:_RPPreview withAnimation:YES];}}];
}

//显示视频预览页面,animation=是否要动画显示
- (void)showVideoPreviewController:(RPPreviewViewController *)previewController withAnimation:(BOOL)animation {__weak typeof (self) weakSelf = self;//UI需要放到主线程dispatch_async(dispatch_get_main_queue(), ^{CGRect rect = previewController.view.frame;if (animation) {rect.origin.x += rect.size.width;previewController.view.frame = rect;rect.origin.x -= rect.size.width;[UIView animateWithDuration:0.3 animations:^(){previewController.view.frame = rect;} completion:^(BOOL finished){}];} else {previewController.view.frame = rect;}[weakSelf.view addSubview:previewController.view];[weakSelf addChildViewController:previewController];});
}

//关闭视频预览页面，animation=是否要动画显示
- (void)hideVideoPreviewController:(RPPreviewViewController *)previewController withAnimation:(BOOL)animation {//UI需要放到主线程dispatch_async(dispatch_get_main_queue(), ^{CGRect rect = previewController.view.frame;if (animation) {rect.origin.x += rect.size.width;[UIView animateWithDuration:0.3 animations:^(){previewController.view.frame = rect;} completion:^(BOOL finished){//移除页面[previewController.view removeFromSuperview];[previewController removeFromParentViewController];}];} else {//移除页面[previewController.view removeFromSuperview];[previewController removeFromParentViewController];}});
}

#pragma mark -RPPreviewViewControllerDelegate
//关闭的回调
- (void)previewControllerDidFinish:(RPPreviewViewController *)previewController {if (isSave == 1) {//这个地方我添加了一个延时,我发现这样保存不到系统相册的情况好多了
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(4 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{[self hideVideoPreviewController:_RPPreview withAnimation:YES];});isSave = 0;}else{dispatch_async(dispatch_get_main_queue(), ^{UIAlertAction *queding = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {[self hideVideoPreviewController:_RPPreview withAnimation:YES];
//                dispatch_async(dispatch_get_main_queue(), ^{//                                [weakSelf.RPPreview dismissViewControllerAnimated:YES completion:nil];
//                            });isSave = 0;}];UIAlertAction *actionCancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:@"录制未保存\n确定要取消吗" preferredStyle:UIAlertControllerStyleAlert];[alert addAction:actionCancel];[alert addAction:queding];[self presentViewController:alert animated:NO completion:nil];});}
}
//选择了某些功能的回调（如分享和保存）
- (void)previewController:(RPPreviewViewController *)previewController didFinishWithActivityTypes:(NSSet <NSString *> *)activityTypes {__weak typeof (self)weakSelf = self;if ([activityTypes containsObject:@"com.apple.UIKit.activity.SaveToCameraRoll"]) {isSave = 1;NSLog(@"***************************");//这个地方我延时执行,等预览画面移除后再显示提示框
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(4 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{dispatch_async(dispatch_get_main_queue(), ^{[weakSelf showAlert:@"保存成功" andMessage:@"已经保存到系统相册"];});});}if ([activityTypes containsObject:@"com.apple.UIKit.activity.CopyToPasteboard"]) {dispatch_async(dispatch_get_main_queue(), ^{[weakSelf showAlert:@"复制成功" andMessage:@"已经复制到粘贴板"];});}
}

#pragma mark ====RPScreenDelegate===
- (void)screenRecorderDidChangeAvailability:(RPScreenRecorder *)screenRecorder
{
//    [screenRecorder addObserver:self forKeyPath:@"recording" options:NSKeyValueObservingOptionNew context:nil];
//    [screenRecorder setValue:@"1" forKey:@"recording"];NSLog(@" delegate ======%@",screenRecorder);
}- (void)screenRecorder:(RPScreenRecorder *)screenRecorder didStopRecordingWithError:(NSError *)error previewViewController:(nullable RPPreviewViewController *)previewViewController
{[_RPPreview setPreviewControllerDelegate:self];_DecoderButton.selected = NO;IsDecoderScreen = 0;[self showVideoPreviewController:_RPPreview withAnimation:YES];
}- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context
{if ([keyPath isEqualToString:@"recording"]) {NSLog(@"keyPath === %@",object);if ([change valueForKey:@"recording"] == 0) {NSLog(@"可以录制");}else{NSLog(@"++++++++++++不可以");}}
}

//显示弹框提示
- (void)showAlert:(NSString *)title andMessage:(NSString *)message {if (!title) {title = @"";}if (!message) {message = @"";}UIAlertAction *actionCancel = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleCancel handler:nil];UIAlertController *alert = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];[alert addAction:actionCancel];[self presentViewController:alert animated:NO completion:nil];
}

//判断对应系统版本是否支持ReplayKit
- (BOOL)isSystemVersionOk {if ([[UIDevice currentDevice].systemVersion floatValue] < 9.0) {return NO;} else {return YES;}
}

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