所以我知道使用以下内容将图像保存到普通相机胶卷:
UIImage *image = imageView.image;
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
但我想要做的是将照片保存到我照片库中的特定命名文件夹中。例如,我用Instagram拍摄的任何照片都会保存到我图书馆的Instagram文件夹中。这也适用于Snapchat。
答案 0 :(得分:2)
首先,您需要创建一个文件夹:
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library addAssetsGroupAlbumWithName:folderName
resultBlock:^(ALAssetsGroup *group)
{
NSLog(@"Added folder:%@", folderName);
}
failureBlock:^(NSError *error)
{
NSLog(@"Error adding folder");
}];
然后,找到文件夹:
__block ALAssetsGroup* folder;
[library enumerateGroupsWithTypes:ALAssetsGroupAlbum
usingBlock:^(ALAssetsGroup *group, BOOL *stop)
{
if ([[group valueForProperty:ALAssetsGroupPropertyName] isEqualToString:folderName])
{
folder = group;
}
}
failureBlock:^(NSError* error)
{
// Error handling.
}];
并将照片添加到其中。
将图像保存到资源库,并将其放入相册:
[library writeImageToSavedPhotosAlbum:yourImage
metadata:[info objectForKey:UIImagePickerControllerMediaMetadata]
completionBlock:^(NSURL* assetURL, NSError* error)
{
if (error.code == 0)
{
// Get the asset
[library assetForURL:assetURL
resultBlock:^(ALAsset *asset)
{
// Assign the photo to the album
[folder addAsset:asset];
}
failureBlock:^(NSError* error)
{
// Error handling.
}];
}
else
{
// Error handling.
}
}];