xcode Swift 中 UIImageWriteToSavedPhotosAlbum 之后的图像 URL
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URL of image after UIImageWriteToSavedPhotosAlbum in Swift
提问by ManzMoody
After i took a photo with the camera i save the image with the following code:
用相机拍照后，我使用以下代码保存图像：
UIImageWriteToSavedPhotosAlbum(image, self,"image:didFinishSavingWithError:contextInfo:", nil)
This saves the image in the camera roll. Additionally i want to save the URL to this saved image in Core Data. Is it possible to retrieve the URL (or the Path) to so that i only need to save this URL and not the full image in Core Data?
这会将图像保存在相机胶卷中。另外，我想将 URL 保存到 Core Data 中这个保存的图像。是否可以检索 URL（或路径），以便我只需要保存此 URL 而不是 Core Data 中的完整图像？
采纳答案by ManzMoody
After reading a lot of answers written in ObjectivC i finally figured out how to write this in Swift with Xcode 6.2:
在阅读了大量用 ObjectivC 编写的答案后，我终于想出了如何使用 Xcode 6.2 在 Swift 中编写它：
ALAssetsLibrary().writeImageToSavedPhotosAlbum(image.CGImage, orientation: ALAssetOrientation(rawValue: image.imageOrientation.rawValue)!,
completionBlock:{ (path:NSURL!, error:NSError!) -> Void in
println("\(path)")
})
回答by A.G
Here is my combination..
这是我的组合..
Saving Image :
保存图像：
let imageData = NSData(data:UIImagePNGRepresentation(pickedimage))
let paths = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)
var docs: String = paths[0] as! String
let fullPath = docs.stringByAppendingPathComponent("yourNameImg.png")
let result = imageData.writeToFile(fullPath, atomically: true)
print(fullPath)
Get Image:
获取图像：
let nsDocumentDirectory = NSSearchPathDirectory.DocumentDirectory
let nsUserDomainMask = NSSearchPathDomainMask.UserDomainMask
if let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true)
{
if paths.count > 0
{
if let dirPath = paths[0] as? String
{
let readPath = dirPath.stringByAppendingPathComponent("yourNameImg.png")
let image = UIImage(contentsOfFile: readPath)
UploadImagePreview.image = image
}
}
}
We can try with Photos Framework to fetch the last saved image.
我们可以尝试使用照片框架来获取最后保存的图像。
var fetchOptions: PHFetchOptions = PHFetchOptions()
fetchOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: true)]
var fetchResult = PHAsset.fetchAssetsWithMediaType(PHAssetMediaType.Image, options: fetchOptions)
if (fetchResult.firstObject != nil) {
var lastAsset: PHAsset = fetchResult.lastObject as! PHAsset
PHImageManager.defaultManager().requestImageForAsset(lastAsset, targetSize: self.UploadImagePreview.bounds.size, contentMode: PHImageContentMode.AspectFill, options: PHImageRequestOptions(), resultHandler: { (result, info) -> Void in
self.UploadImagePreview.image = result
})
}
