如何将CR2/NEF/RAW图像保存到照相/摄像卷中的相册（IOS）
我有一张CR2图像（由佳能数码单反拍摄）保存在沙盒中，我想把它添加到相机卷中。所以我使用下面的方法，但它会导致错误，没有描述。如何将CR2保存到相机卷？非常感谢如何将CR2/NEF/RAW图像保存到照相/摄像卷中的相册（IOS）,ios,objective-c,ios10,Ios,Objective C,Ios10,我有一张CR2图像（由佳能数码单反拍摄）保存在沙盒中，我想把它添加到相机卷中。所以我使用下面的方法，但它会导致错误，没有描述。如何将CR2保存到相机卷？非常感谢 [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{ // Request creating an asset from the image. PHAssetChangeRequest *createAssetRequest = [PHAssetChangeRequ
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
// Request creating an asset from the image.
PHAssetChangeRequest *createAssetRequest = [PHAssetChangeRequest creationRequestForAssetFromImageAtFileURL:[NSURL URLWithString:localPath]];
// Request editing the album.
PHFetchResult<PHAssetCollection *> *albumList = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum subtype:PHAssetCollectionSubtypeSmartAlbumUserLibrary options:nil];
PHAssetCollection *album;
for(PHAssetCollection *am in albumList){
if([am.localizedTitle isEqualToString:ALBUMN]){
album = am;
}
}
PHAssetCollectionChangeRequest *albumChangeRequest = [PHAssetCollectionChangeRequest changeRequestForAssetCollection:album];
// Get a placeholder for the new asset and add it to the album editing request.
PHObjectPlaceholder *assetPlaceholder = [createAssetRequest placeholderForCreatedAsset];
[albumChangeRequest addAssets:@[assetPlaceholder]];
} completionHandler:^(BOOL success, NSError *error) {
NSLog(@"-=-=-=-Finished adding asset. %@", (success ? @"Success" : error));
}];
[[PHPhotoLibrary sharedPhotoLibrary]性能更改：^{
//请求从映像创建资源。
PHAssetChangeRequest*createAssetRequest=[PhasSetChangeRequestCreationRequestForAssetFromImageAtFileURL:[NSURL URLWithString:localPath]]；
//请求编辑相册。
PHFetchResult*albumList=[PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum子类型：PHAssetCollectionSubtypeSmartAlbumUserLibrary选项：nil]；
相册；
用于（相册列表中的PHAssetCollection*am）{
if（[am.localizedTitle IsequalString:ALBUMN]）{
相册=am；
}
}
PHAssetCollectionChangeRequest*albumChangeRequest=[PhasSetCollectionChangeRequestChangeRequestForAssetCollection:album]；
//获取新资源的占位符并将其添加到唱片集编辑请求中。
PHObjectPlaceholder*assetPlaceholder=[createAssetRequest占位符用于CreateDasset]；
[AlbumChangeRequestAddAssets:@[assetPlaceholder]；
}completionHandler:^（布尔成功，N错误*错误）{
NSLog（@“-=-=-=-已完成添加资产%@），（成功？@“成功”：错误）；
}];