如何从最长持续时间的 UIImagePickerController 获取视频

Question

我在我的应用程序中实现了一个 UIImagePickerController，其 videoMaximumDuration 为 10 秒。

但是在来自委托的回调中 imagePickerController:didFinishPickingMediaWithInfo：在 NSDictionary 中，我只能从 PHAsset 中检索原始视频（而不是修剪后的视频）。

选择视频时从字典中获取NSLog。

info: {
    UIImagePickerControllerMediaType = "public.movie";
    UIImagePickerControllerPHAsset = "<PHAsset: 0x1149af010> E2FA31C6-0232-4A89-8DE5-A4C8CBC98D97/L0/001 mediaType=2/0, sourceType=1, (540x960), creationDate=2019-06-05 14:01:07 +0000, location=0, hidden=0, favorite=0 ";
    UIImagePickerControllerReferenceURL = "assets-library://asset/asset.mov?id=E2FA31C6-0232-4A89-8DE5-A4C8CBC98D97&ext=mov";
}

    UIImagePickerController *picker = [[UIImagePickerController alloc] init];

    if([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeSavedPhotosAlbum])
    {
        picker.delegate = self;
        picker.allowsEditing = YES;
        picker.videoMaximumDuration = 10.0f;
        picker.modalPresentationStyle = UIModalPresentationCurrentContext;
        picker.mediaTypes = @[(NSString*)kUTTypeMovie, (NSString*)kUTTypeAVIMovie, (NSString*)kUTTypeVideo, (NSString*)kUTTypeMPEG4, (NSString*)kUTTypeImage];
        picker.videoQuality = UIImagePickerControllerQualityTypeHigh;
        picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;

        [self._viewCtrl presentViewController:picker animated:YES completion:nil];
    }

我如何访问修剪后的视频？感谢

Answer 1

我不知道为什么，但将 UIImagePickerControllerSourceTypeSavedPhotosAlbum 更改为 UIImagePickerControllerSourceTypePhotoLibrary 修复了它（现在在 NSSDictionary 中显示 UIImagePickerControllerMediaURL）

如何从最长持续时间的 UIImagePickerController 获取视频

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