Question

我尝试使用带有.addResourceWithType和Swift 2的iOS 9 PHAssetCreationRequest来保存带有自定义文件名的照片。它正在保存照片，但它没有使用我在PHAssetResourceCreationOptions中指定的文件名选项。我想使用自定义文件名，因为我需要存储一个带有照片的自定义字符串，该字符串表示＆＃39;键入＆＃39;照片是。目前我正在存储＆＃39;类型＆＃39;然而，如果应用程序已卸载，那么Core Data数据存储中的localIdentifier也是如此，因此我正在寻找与照片保持一致的其他方法。以下是我使用的代码：

var assetPlaceholder:PHObjectPlaceholder!
PHPhotoLibrary.sharedPhotoLibrary().performChanges({
    if #available(iOS 9.0, *) {
        let options = PHAssetResourceCreationOptions()
        options.originalFilename = frameType + "_" + origFilename
        let newcreation:PHAssetCreationRequest = PHAssetCreationRequest.creationRequestForAsset()
        newcreation.addResourceWithType(PHAssetResourceType.Photo, data:UIImageJPEGRepresentation(image, 1)!, options: options)
        assetPlaceholder = newcreation.placeholderForCreatedAsset
    } else { // < ios 9
        // Fallback on earlier versions
        let assetChangeRequest = PHAssetChangeRequest.creationRequestForAssetFromImage(image)    
        assetPlaceholder = assetChangeRequest.placeholderForCreatedAsset      
    }
    let albumChangeRequest = PHAssetCollectionChangeRequest(forAssetCollection: assetCollection)
    albumChangeRequest!.addAssets([assetPlaceholder])
}, completionHandler: {(success:Bool, error:NSError?) in

iOS 9使用PHPhotoLibrary和swift 2

0 个答案: