I try to get metadata of files from Firebase Storage, in particular date of create (because I want to compare date of local file and date of Cloud file and change file, if needed). I use getMetadata { (metadata, error) in ...} method, but I don't get result in my completion. Control doesn't go to completion! My code is below
let metadataURL = Storage.storage().reference().child("tutorials/how_to/use_masking/cover.jpg")
metadataURL.getMetadata { (metadata, error) in
if let error = error {
print(error)
} else {
if let data = metadata {
let dict = data.dictionaryRepresentation()
print(dict)
}
}
}
And I want to say now, that image is really in this path, because I get this image with getData(...) method in the next step.
Related
I am trying to save an image to the user's photo library using PHPhotoLibrary and set the image file name at the time of saving the code below. This is working the first time, but if I then try to save the same image again with a different file name, it saves with the same file name as before.
Is there something I need to add to let the system know to save a new version of the image with a new file name?
PHPhotoLibrary.shared().performChanges ({
let assetType:PHAssetResourceType = .photo
let request:PHAssetCreationRequest = .forAsset()
let createOptions:PHAssetResourceCreationOptions = PHAssetResourceCreationOptions()
createOptions.originalFilename = "\(fileName)"
request.addResource(with: assetType, data: image.jpegData(compressionQuality: 1)!, options: createOptions)
}, completionHandler: { success, error in
if success == true && error == nil {
print("Success saving image")
} else {
print("Error saving image: \(error!.localizedDescription)")
}
})
Save the new image with the required file name
I am trying to save an image to the user's photo library using PHPhotoLibrary and set the image file name at the time of saving suing the code below.
This is working the first time, but if I then try to save the same image again with a different file name, it saves with the same file name as before.
Is there something I need to add to let the system know to save a new version of the image with a new file name?
Thank you
PHPhotoLibrary.shared().performChanges ({
let assetType:PHAssetResourceType = .photo
let request:PHAssetCreationRequest = .forAsset()
let createOptions:PHAssetResourceCreationOptions = PHAssetResourceCreationOptions()
createOptions.originalFilename = "\(fileName)"
request.addResource(with: assetType, data: image.jpegData(compressionQuality: 1)!, options: createOptions)
}, completionHandler: { success, error in
if success == true && error == nil {
print("Success saving image")
} else {
print("Error saving image: \(error!.localizedDescription)")
}
})
I have a Google MLKit model for labeling an Image after capturing the image, but everytime I tried to process the Image, it always give me this error:
label process error:: Pipeline failed to fully start: Calculator::Open() for node "ClassifierClientCalculator" failed: #vk The TFLite Model Metadata must not contain label maps when text_label_map_file is used.
Here's my MLKit image labeler configuration code (this code is based on MLKit's documentation):
private func configureModelSource() { // Called in viewDidLoad()
guard let manifestPath = Bundle.main.path(forResource: "filename", ofType: "json") else { return }
guard let localModel = LocalModel(manifestPath: manifestPath) else { return }
let options = CustomImageLabelerOptions(localModel: localModel)
options.confidenceThreshold = NSNumber(value: 0.0)
imageLabeler = ImageLabeler.imageLabeler(options: options)
}
private func processImage(with image: UIImage) { // Called after capturing an Image
guard imageLabeler != nil else { return }
let visionImage = VisionImage(image: image)
visionImage.orientation = image.imageOrientation
imageLabeler?.process(visionImage) { labels, error in
guard error == nil, let labels = labels, !labels.isEmpty else {
print("label process error:: \(error?.localizedDescription ?? "nil")")
return
}
for label in labels {
// Do something...
}
}
}
Is there anyway to solve this? For context, the model.tflite file was updated. The file before the one that gives me this error works as expected. But the new model.tflite file always gives me this error everytime I run my app. Is this a file-related error or did I do something wrong with my code that I have to also update it?
Here's my understanding based on the error message:
Given you are using the LocalModel(manifestPath: manifestPath) API, it is expecting a legacy TFLite model format where the label map is provided through a separate text file and the model.tflite itself does not contain the label map. That's why your file before your model update works.
To use your updated model.tflite (which seems to contain the lab map inside its metadata), I think you can try the following to use the model.tflite file directly with the custom models API without going through the filename.json manifest:
guard let modelPath = Bundle.main.path(forResource: "model", ofType: "tflite") else { return }
guard let localModel = LocalModel(path: modelPath) else { return }
You can check out the documentation about custom models here: https://developers.google.com/ml-kit/vision/image-labeling/custom-models/ios
Language : Swift 5
iOS: 13.2
macOS: Catalina 10.15.4
Firebase Storage Rules:
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write: if request.auth!=null;
}
}
}
The code to upload image and save download URL: (Which works fine, because I can see images uploaded to storage and their respective download URLs stored to real-time database.)
let storageRef = Storage.storage().reference()
//Let's upload all workout pictures
let uploadPicsRef =
storageRef.child("WORKOUTDATA/USERS/"+self.UID!).child("WHITEBOARDWORKOUTS")
let uploadNumberRef = uploadPicsRef.child("\(String(describing: workoutNum))")
let workoutPicturesRef = uploadNumberRef.child("WORKOUTPICTURES")
let workoutPicURLRef = workoutRef.child("WORKOUTPICTURESURL")
var count = 0
var picNumber = 0
//workoutPictures list/array contains images selected from iPhone Gallery, using
//UIImagePickerController
for workoutPic in self.workoutPictures
{
let workoutPicData = workoutPic.jpegData(compressionQuality: 1.0)!
count = count + 1
let pictureName = "Picture\(count).jpg"
// Upload the file to the path in pictureRef
let pictureRef = workoutPicturesRef.child("\(pictureName)")
let metaData = StorageMetadata()
metaData.contentType = "image/jpg"
pictureRef.putData(workoutPicData, metadata: metaData) { (metadata, error) in
if error != nil {
print("Error while uploading image")
}
else
{
pictureRef.downloadURL { (url, err) in
picNumber = picNumber + 1
workoutPicURLRef.child("Picture\(picNumber)").setValue(url?.absoluteString)
}
}
}
}
The code to download image:
let myGroup = DispatchGroup()
let workoutPicUrls = snapshot.childSnapshot(forPath: "WORKOUTPICTURESURL")
for url in workoutPicUrls.children
{
myGroup.enter()
let snap = url as! DataSnapshot
let link = snap.value as? String
let storageRef = Storage.storage().reference()
let pictureRef = storageRef.root().child(link!)
DispatchQueue.main.async {
pictureRef.getData(maxSize: 1*2000000*2000000) { (data, err) in
if (err != nil) {
print(err!)
print(err!.localizedDescription)
} else {
let pic = UIImage(data: data!)
workoutPicsArray.append(pic!)
myGroup.leave()
}
}
}
}
Error:
Error Domain=FIRStorageErrorDomain Code=-13010 "Object https:/firebasestorage.googleapis.com/v0/b/trainer-8cb52.appspot.com/o/WORKOUTDATA%2FUSERS%2F1K7WV1alYIeWPAsFC6YMoJKPFSj1%2FWHITEBOARDWORKOUTS%2F5%2FWORKOUTPICTURES%2FPicture1.jpg?alt=media&token=785ab8c7-1e08-4ad3-a542-c9e6313eb547 does not exist." UserInfo={object=https:/firebasestorage.googleapis.com/v0/b/trainer-8cb52.appspot.com/o/WORKOUTDATA%2FUSERS%2F1K7WV1alYIeWPAsFC6YMoJKPFSj1%2FWHITEBOARDWORKOUTS%2F5%2FWORKOUTPICTURES%2FPicture1.jpg?alt=media&token=785ab8c7-1e08-4ad3-a542-c9e6313eb547, ResponseBody={
"error": {
"code": 404,
"message": "Not Found. Could not get object",
"status": "GET_OBJECT"
}
}, bucket=trainer-8cb52.appspot.com, data={length = 115, bytes = 0x7b0a2020 22657272 6f72223a 207b0a20 ... 54220a20 207d0a7d }, data_content_type=application/json; charset=UTF-8, NSLocalizedDescription=Object https:/firebasestorage.googleapis.com/v0/b/trainer-8cb52.appspot.com/o/WORKOUTDATA%2FUSERS%2F1K7WV1alYIeWPAsFC6YMoJKPFSj1%2FWHITEBOARDWORKOUTS%2F5%2FWORKOUTPICTURES%2FPicture1.jpg?alt=media&token=785ab8c7-1e08-4ad3-a542-c9e6313eb547 does not exist., ResponseErrorDomain=com.google.HTTPStatus, ResponseErrorCode=404}
What I have tried so far:
Checked firebase storage rules.
When I paste the path https:/firebasestorage.googleapis.com/v0/b/trainer8cb52.appspot.com/o/WORKOUTDATA%2FUSERS%2F1K7WV1alYIeWPAsFC6YMoJKPFSj1%2FWHITEBOARDWORKOUTS%2F5%2FWORKOUTPICTURES%2FPicture1.jpg?alt=media&token=785ab8c7-1e08-4ad3-a542-c9e6313eb547 in chrome browser window, the expected image opens.
Set the maxSize to a ridiculously high number 1*2000000*2000000.
Thank you!
Is it possible that you are storing the full https URL in the database and are trying to create a reference by adding the full https url as a child to the storage reference?
I think you should try to either store just the path and name in your database or you change your download code to use the https URL.
// Create a reference from an HTTPS URL
// Note that in the URL, characters are URL escaped!
let httpsReference = storage.reference(forURL: "https://firebasestorage.googleapis.com/b/bucket/o/images%20stars.jpg")
httpsReference.getData(maxSize: ...
Also you're running your getData method inside DispatchQueue.main.async. getData has itself a completion handler and might take some time, when you run that inside of DispatchQueue.main.async it will block your code until the download is done. Only put code that update the UI inside DispatchQueue.main.async. In your case as soon as you do something with your workoutPicsArray or the UIImage to update your view.
Have a look here to see if you can figure out how you are actually trying to get the data. It might be helpful to put a print() after each line to see what you are creating and using at what point.
Download Files on iOS
I'm trying to fetch image data from firebase storage with swift .
Code :
let ref = Storage.storage().reference().child("users").child("uid").child("savedimage");
let task = ref.getData(maxSize: 1024*1024*12) { (data, error) in
if let data = data , let image = UIImage(data: data) {
print("image exists");
self.imageView.image = image;
}else {
print(error);
}
}
task.resume();
But most of the time the app crash after a second of getting the image , and take me to this :
It's not showing any error in console output so i cannot figure out what's the issue but sometimes it's give me a warning before the crash :
warning: could not execute support code to read Objective-C class data in the process. This may reduce the quality of type information available.
What i'm doing wrong ?