pod ‘ASImagePicker’, '~> 0.0.1’

ASImagePickerController *imagePicker = [[ASImagePickerController alloc] init];

imagePicker.access = ASImagePickerControllerAccessAlbums;

imagePicker.showsEmptyAlbum = YES;
imagePicker.showsAlbumCategory = YES;
imagePicker.showsAlbumNumber = YES;
imagePicker.showsAlbumThumbImage = YES;
imagePicker.allowsMultiSelected = YES;
imagePicker.rowLimit = 4;
imagePicker.imageLimit = 3;

imagePicker.completionBlock =  ^(NSArray<id> *datas, NSError *error) {
    //datas represent the selected images;    
};

[self presentViewController:imagePicker animated:YES completion:nil];