Styjun

when i tried to get the download URL for my image in firebase storage I got something weird i got this result

com.google.android.gms.tasks.zzu@3a6d712

and here is my code

public class MainActivity extends AppCompatActivity 

 private StorageReference mStorage;
 private ProgressDialog mProgressDialog;
 private static final int GALLERY_REQUEST_CODE = 1;
 private static final int CAMERA_REQUEST_CODE = 2;
 private Button uploadButton;
 private Button captureButton;
 ImageView imageViewBig, imageViewSmall;

 @Override
 protected void onCreate(Bundle savedInstanceState) 
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

 mStorage = FirebaseStorage.getInstance().getReference();
 mProgressDialog = new ProgressDialog(this);
 imageViewBig = findViewById(R.id.imageViewBig);
 imageViewSmall = findViewById(R.id.imageViewSmall);
 captureButton = findViewById(R.id.captureButton);
 uploadButton = findViewById(R.id.uploadButton);
 captureButton.setOnClickListener(new View.OnClickListener() 
 @Override
 public void onClick(View v) 
 Intent intent = new Intent(Intent.ACTION_PICK);
 intent.setType("image/*");
 startActivityForResult(intent, GALLERY_REQUEST_CODE);
 
 );
 

 @Override
 protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) 
 super.onActivityResult(requestCode, resultCode, data);
 if (requestCode == GALLERY_REQUEST_CODE && resultCode == RESULT_OK) 
 Uri uri = data.getData();
 StorageReference filePath = mStorage.child("photos").child(uri.getLastPathSegment());
 filePath.putFile(uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() 
 @Override
 public void onSuccess(final UploadTask.TaskSnapshot taskSnapshot) 
 Toast.makeText(MainActivity.this, "DONE", Toast.LENGTH_SHORT).show();
 imageViewBig.setBackgroundColor(Color.GREEN);
 imageViewBig.setOnClickListener(new View.OnClickListener() 
 @Override
 public void onClick(View v) 
 Log.i("URL", taskSnapshot.getMetadata().getReference().getDownloadUrl().toString());
 
 );
 
 );
 
 

so how to get the right download URL to download the image into image view using picasso

UploadTask

public class UploadTask extends StorageTask<UploadTask.TaskSnapshot>

An controllable task that uploads and fires events for success, progress and failure. It also allows pause and resume to control the upload operation.

Example

final StorageReference firebaseStorage = FirebaseStorage.getInstance().getReference();

StorageReference postPhotos = firebaseStorage.child("photos/");

final StorageReference upload_Image = postPhotos.child(uri.getLastPathSegment());

//uri = uri of your file which you want to update
UploadTask uploadTask = upload_Image.putFile(uri);
 uploadTask.addOnFailureListener(new OnFailureListener() 
 @Override
 public void onFailure(@NonNull Exception e) 

 
 );
 uploadTask.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() 
 @Override
 public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) 
 upload_Image.getDownloadUrl().addOnCompleteListener(new OnCompleteListener<Uri>() 
 @Override
 public void onComplete(@NonNull Task<Uri> task) 
 if (task.isSuccessful()) 
 //downloadable uri
 Uri path = task.getResult();
 
 
 );
 
 );

Use this Code to upload File on firebase and get download url for that file

Uri file = Uri.fromFile(new File(aadhaarPath));
 final StorageReference riversRef = storageRef.child("documents/" + file.getLastPathSegment());
 uploadTask = riversRef.putFile(file);

 uploadTask.addOnFailureListener(new OnFailureListener() 
 @Override
 public void onFailure(@NonNull Exception exception) 
 progressDialog.dismiss();
 
 ).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() 
 @Override
 public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) 

 // get the image Url of the file uploaded
 riversRef.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() 
 @Override
 public void onSuccess(Uri uri) 
 Uri downloadUrl = uri;
 aadharDownloadUrl = downloadUrl.toString();
 uploadPanCard(panCardPath);
 
 );
 
 );

aadhaarPath is file path that you selected to upload

and add this in your build .gradle

implementation 'com.google.firebase:firebase-storage:16.0.3'

I save photos to Firebase storage and the image name to Firebase realtime database and than i am using Glide to load images from Firebase Storage:

 FirebaseStorage storage = FirebaseStorage.getInstance();
 StorageReference storageRef = storage.getReference();
 StorageReference imageRef = storageRef.child(PHOTO_NAME);

 GlideApp.with(mContext).load(islandRef).into(viewHolder.image);