保存图片到相机胶卷

- 导入头部
#import <Photos/Photos.h>    





 保存图片到相机胶卷
  [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
    //这个方法必须得嵌套在 [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{ 内
    [PHAssetChangeRequest creationRequestForAssetFromImage:self.imageView.image];
} completionHandler:^(BOOL success, NSError * _Nullable error) {
    if (success) {
        [SVProgressHUD showSuccessWithStatus:@"保存成功"];
    }else{
        [SVProgressHUD showErrorWithStatus:@"保存失败"];
    }
    
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [SVProgressHUD dismiss];
    });
}];