ios - 如何从 UIImagePickerController 获取图像的 NSURL？上传到 Firebase
<p><p>因此已经启动了一些其他线程，因为人们对此有疑问。喜欢这个:<a href="https://stackoverflow.com/questions/37670009/obtain-nsurl-from-uiimagepickercontroller" rel="noreferrer noopener nofollow">Obtain NSURL from UIImagePickerController</a>和这个:
<a href="https://stackoverflow.com/questions/37603312/firebase-storage-upload-works-in-simulator-but-not-on-iphone?rq=1" rel="noreferrer noopener nofollow">Firebase storage upload works in Simulator but not on iPhone</a> </p>
<p>我正在尝试遵循本教程:
<a href="https://firebase.google.com/docs/storage/ios/upload-files#upload_from_a_local_file" rel="noreferrer noopener nofollow">https://firebase.google.com/docs/storage/ios/upload-files#upload_from_a_local_file</a> </p>
<p>我的视频可以上传，只是图片不行。</p>
<p>我的视频代码很简单:</p>
<pre><code>if mediaType.isEqualToString(kUTTypeMovie as String) {
let videoURL = info as? NSURL
fileToUploadURL = videoURL!
}
</code></pre>
<p>但我的图像代码不起作用。这就是我最终得到的结果:</p>
<pre><code> let imageUrl = info["UIImagePickerControllerReferenceURL"] as? NSURL
let assets = PHAsset.fetchAssetsWithALAssetURLs(, options: nil)
let asset = assets.firstObject
asset?.requestContentEditingInputWithOptions(nil, completionHandler: { (contentEditingInput, info) in
let imageFile = contentEditingInput?.fullSizeImageURL
// now call putFile with imageFile instead of imageUrl
self.fileToUploadURL = imageFile
})
</code></pre>
<p>似乎无论我做什么都会出错。
这是我当前的错误</p>
<pre><code>2016-06-25 12:45:23.695 Chain Body file is unreachable: /var/mobile/Media/DCIM/100APPLE/IMG_0027.JPG
Error Domain=NSCocoaErrorDomain Code=257 "The file “IMG_0027.JPG” couldn’t be opened because you don’t have permission to view it."
</code></pre>
<p>控制台日志</p>
<blockquote>
<p>2016-06-25 12:47:59.108 Chain Body file is unreachable: /var/mobile/Media/DCIM/100APPLE/IMG_0027.JPG
Error Domain=NSCocoaErrorDomain Code=257 "The file “IMG_0027.JPG” couldn’t be opened because you don’t have permission to view it." UserInfo={NSURL=file:///var/mobile/Media/DCIM/100APPLE/IMG_0027.JPG, NSFilePath=/var/mobile/Media/DCIM/100APPLE/IMG_0027.JPG, NSUnderlyingError=0x18b7ad40 {Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"}}
2016-06-25 12:48:02.969 Chain plugin com.swiftkey.SwiftKeyApp.Keyboard invalidated
Optional(["public.image", "public.movie"])
info: ["UIImagePickerControllerOriginalImage":size {1836, 1454} orientation 0 scale 1.000000, "UIImagePickerControllerReferenceURL": assets-library://asset/asset.JPG?id=5FE3480C-0A3E-42B2-B83B-93D0F321A3B2&ext=JPG, "UIImagePickerControllerMediaType": public.image, "UIImagePickerControllerCropRect": NSRect: {{0, 0}, {1836, 1452}}, "UIImagePickerControllerEditedImage":size {638, 504} orientation 0 scale 1.000000]
fileToUploadURL: file:///var/mobile/Media/DCIM/100APPLE/IMG_0027.JPG
Optional(["public.image", "public.movie"])
2016-06-25 13:01:58.845 Chain plugin com.swiftkey.SwiftKeyApp.Keyboard invalidated
info: ["UIImagePickerControllerOriginalImage":size {1836, 1454} orientation 0 scale 1.000000, "UIImagePickerControllerReferenceURL": assets-library://asset/asset.JPG?id=CFF5692E-2B93-407D-A9E4-48AC1BEDCAF2&ext=JPG, "UIImagePickerControllerMediaType": public.image, "UIImagePickerControllerCropRect": NSRect: {{0, 0}, {1836, 1452}}, "UIImagePickerControllerEditedImage":size {638, 504} orientation 0 scale 1.000000]
fileToUploadURL: nil</p>
<p>2016-06-25 13:04:05.136 Chain _BSMachError: (os/kern) invalid capability (20)
2016-06-25 13:04:05.138 Chain _BSMachError: (os/kern) invalid name (15)
2016-06-25 13:04:05.146 Chain plugin com.swiftkey.SwiftKeyApp.Keyboard invalidated
2016-06-25 13:04:05.220 Chain CFNetwork SSLHandshake failed (-9806)
2016-06-25 13:04:05.661 Chain Body file is unreachable: /var/mobile/Media/DCIM/100APPLE/IMG_0015.JPG
Error Domain=NSCocoaErrorDomain Code=257 "The file “IMG_0015.JPG” couldn’t be opened because you don’t have permission to view it." UserInfo={NSURL=file:///var/mobile/Media/DCIM/100APPLE/IMG_0015.JPG, NSFilePath=/var/mobile/Media/DCIM/100APPLE/IMG_0015.JPG, NSUnderlyingError=0x18bd4330 {Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"}}</p>
</blockquote>
<p>编辑:这是我的 didFinishPickingMedia:</p>
<pre><code>func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: ) {
let mediaType = info as! NSString
print ("info: \(info)")
if mediaType.isEqualToString(kUTTypeImage as String) {
var newImage: UIImage
if let possibleImage = info["UIImagePickerControllerEditedImage"] as? UIImage {
newImage = possibleImage
}
else if let possibleImage = info["UIImagePickerControllerOriginalImage"] as? UIImage {
newImage = possibleImage
}
else {
return
}
/// CAN NOT GET NSURL working, NEED TO USE NSDATA
if let jpegData:NSData = UIImageJPEGRepresentation(newImage, 80) {
currentMediaTypeToUpload = "img"
fileToUploadDATA = jpegData
}
}
else if mediaType.isEqualToString(kUTTypeMovie as String) {
let videoURL = info as? NSURL
fileToUploadURL = videoURL!
currentMediaTypeToUpload = "vid"
}
</code></pre></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>解决方案在这里:<a href="https://stackoverflow.com/questions/38030831/how-do-i-get-nsurl-for-an-image-froom-uiimagepickercontroller-for-upload-to-fir" rel="noreferrer noopener nofollow">how do I get NSURL for an image froom UIImagePickerController? for upload to Firebase</a> </p>
<p>应用于我们的问题:</p>
<pre><code>iflet referenceUrl = info {
////
let assetURL = NSURL(string: String(referenceUrl))
let assets = PHAsset.fetchAssetsWithALAssetURLs(, options: nil)
let asset: PHAsset = assets.firstObject as! PHAsset
let manager = PHImageManager.defaultManager()
let requestSize = PHImageManagerMaximumSize
manager.requestImageForAsset(asset, targetSize: requestSize, contentMode: .AspectFit, options: nil, resultHandler: {(result, info)->Void in
// Result is a UIImage
// Either upload the UIImage directly or write it to a file
let imageData = UIImageJPEGRepresentation(result!, 0.8)
let imagePath = FIRAuth.auth()!.currentUser!.uid + "/\(Int(NSDate.timeIntervalSinceReferenceDate() * 1000)).jpg"
print ("filePath: ", imagePath)
let metadata = FIRStorageMetadata()
metadata.contentType = "image/jpeg"
self.storageRef.child(imagePath)
.putData(imageData!, metadata: metadata) { (metadata, error) in
if let error = error {
print("Error uploading: \(error.description)")
return
}
self.sendMessage()
print("Succeded")
}
})
}
</code></pre>
<p>有了这个解决方案，我可以将我的文件上传到 firebase。</p></p>
<p style="font-size: 20px;">关于ios - 如何从 UIImagePickerController 获取图像的 NSURL？上传到 Firebase，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/38030831/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/38030831/
</a>
</p>
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