CODEWITHSUNDEEP
javaandroidandroid-fragments
Rehan CG
Rehan CG

Reputation: 45

Updating ImageView in a Fragment Android

I've one MainActivity, and few fragments on it.

I am trying to change a ImageView in a fragment using Gallery. But once image is selected, the MainActivity get refresh, which changes the MainActivity back to the default fragment.

Getting permission

 textViewChangeImage.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Log.d(TAG,"Select Image executed");

            requestPermissions(
                    new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
                    REQUEST_CODE);



        }
    });

On Request permission

 @Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    Log.d(TAG,"Select Image Permission executed");

    if(requestCode == REQUEST_CODE){
        progressDialogUploadDp.setMessage("Uploading...");
       progressDialogUploadDp.show();

        if(grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
            Intent intent = new Intent(Intent.ACTION_PICK);
            intent.setType("image/*");
            intent.putExtra("imageUpdate","true");
            startActivityForResult(intent,REQUEST_CODE);
        }else{
            Toast.makeText(getActivity(), "No Permission Granted", Toast.LENGTH_SHORT).show();
        }
        return;
    }

    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}

On Activity Result

 @Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {

    super.onActivityResult(requestCode, resultCode, data);

    if(requestCode == REQUEST_CODE && resultCode == Activity.RESULT_OK && data != null){

        try {
        Uri uri = data.getData();

        StorageReference filepath =
                storageReference.child("Photos").child("DPs").child(ID).child("profilepicture.jpg");
            InputStream inputStream = getActivity().getContentResolver().openInputStream(uri);

            Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
            imageviewpropic.setImageBitmap(bitmap);

            filepath.putFile(uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                @Override
                public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

                    progressDialogUploadDp.hide();
                    progressDialogUploadDp.dismiss();


                }
            });

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }


    }

Looking forward for a solution!

Updated ---

MainActivity

@Override
public void onStart() {
    super.onStart();
        mAuth.addAuthStateListener(mAuthListener);
}

@Override
public void onStop() {
    super.onStop();
    if (mAuthListener != null) {
        mAuth.removeAuthStateListener(mAuthListener);
    }
}

@Override
protected void onResume() {
    super.onResume();

}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    if(savedInstanceState==null) {
mRef.addValueEventListener(new ValueEventListener() {
                        @Override
                        public void onDataChange(DataSnapshot dataSnapshot) {
                            if (dataSnapshot.hasChild("questioners")) {
adapter = new SectionStatePagerAdapter(getSupportFragmentManager());
                                    adapter.addFragment(new HomeFragment(), "HomeFragment");
                                    viewPager.setAdapter(adapter);
}}
}

Upvotes: 0

Views: 781

Answers (2)

matip
matip

Reputation: 890

From what you've said it looks like your activity is calling onCreate method and setting default fragment again. What you can do is to in onCreate() create new fragment only if there is no saved state.

if(savedInstanceState==null) setFragment(fragment);

Upvotes: 0

leo liao
leo liao

Reputation: 81

Back form gallery , activity will run onActivityResult then it will run onResume . so you can set a FLAG at onActivityResult and make an IF in onResume to set your fragment.

Upvotes: 1

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