HOW TO RETRIVED IMAGE FROM FIREBASE IN ANDROID

 HOW TO RETRIVED IMAGE FROM FIREBASE IN   ANDROID



  • add Dependences in build.gradle file
  • dependencies {
            // Import the BoM for the Firebase platform
        implementation platform    ('com.google.firebase:firebase-bom:28.4.0')

            // Declare the dependency for the Cloud Storage library
            // When using the BoM, you don't specify versions in Firebase library dependencies
            implementation 'com.google.firebase:firebase-storage-latest version'//include latest version
  • Add Imageview in xml to retrived image
  • <ImageView
        android:id="@+id/image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.966"
        android:contentDescription="TODO" />
  •  Now come to Backend part (JAVA)
  • Create a reference to upload, download, or delete a file, or to get or update its metadata.
  • private StorageReference mStorageReference;
  • Next, you can create a reference to a location lower in the tree, say "images/space.jpg" by using the child() method on an existing reference.
  • mStorageReference = FirebaseStorage.getInstance().getReference().child("picture/pandey.png");
    try {
        final File localFile = File.createTempFile("pandey", "png");
        mStorageReference.getFile(localFile)
                .addOnSuccessListener(new OnSuccessListener<FileDownloadTask.TaskSnapshot>() {
                    @Override
                    public void onSuccess(FileDownloadTask.TaskSnapshot taskSnapshot) {
                        Toast.makeText(MainActivity.this,"Picture Retrieved",Toast.LENGTH_SHORT).show();
                        Bitmap bitmap = BitmapFactory.decodeFile(localFile.getAbsolutePath());
                        ((ImageView)findViewById(R.id.image)).setImageBitmap(bitmap);
                    }
                }).addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull  Exception e) {

                Toast.makeText(MainActivity.this,"Error ",Toast.LENGTH_SHORT).show();
            }
        });
    } catch (IOException e) {
        e.printStackTrace();
    }




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