Hide a Checkbox for the current user that is logged in the App

问题

I am trying to hide a CheckBox for the user that is logged in. I display my data from firebase in a RecyclerView with populateViewholder. And I want to hide the CheckBox from the current user logged in. But I am struggling to get it right.

MainActivity:

public class WishItemsActivity extends AppCompatActivity {

private FirebaseAuth mAuth;
private DatabaseReference UsersRef, WishListRef, WishItemsRef;

static String currentUserID;

private ImageButton ibaddnewwishlistitem;

private String Key, databaseUserID;

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

    Key = getIntent().getExtras().get("Key").toString();

    mAuth = FirebaseAuth.getInstance();

    currentUserID = mAuth.getCurrentUser().getUid();

    UsersRef = FirebaseDatabase.getInstance().getReference().child("Brukere");
    WishListRef = FirebaseDatabase.getInstance().getReference().child("Ønskelister");
    WishItemsRef = FirebaseDatabase.getInstance().getReference().child("Ønsker");

    mToolbar = (Toolbar) findViewById(R.id.main_page_toolbar);
    setSupportActionBar(mToolbar);
    getSupportActionBar().setTitle(" Ønsker");


    ibaddnewwishlistitem = (ImageButton) findViewById(R.id.ib_addnewwishitem);

    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    navigationView = (NavigationView) findViewById(R.id.navigation_view);

    WishItemList = (RecyclerView) findViewById(R.id.rv_wishitemslist);
    WishItemList.setHasFixedSize(true);
    LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
    linearLayoutManager.setReverseLayout(true);
    linearLayoutManager.setStackFromEnd(true);
    WishItemList.setLayoutManager(linearLayoutManager);



    ibaddnewwishlistitem.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            SendUserToAddWishItemActivity();

        }
    });

    DisplayUserWishItems();


}

private void DisplayUserWishItems() {

    FirebaseRecyclerAdapter<WishItemClass, WishItemViewHolder> firebaseRecyclerAdapter =
            new FirebaseRecyclerAdapter<WishItemClass, WishItemViewHolder>
                    (
                            WishItemClass.class,
                            R.layout.single_list_item,
                            WishItemViewHolder.class,
                            WishItemsRef.child(Key)


                    ) {
                @Override
                protected void populateViewHolder(WishItemViewHolder viewHolder, WishItemClass model, final int position) {


                    final String PostKey = getRef(position).getKey();


                    viewHolder.setWishitemname(model.getWishitemname());


                    viewHolder.setChecked(model.isChecked());



                    viewHolder.mView.setOnLongClickListener(new View.OnLongClickListener() {
                        @Override
                        public boolean onLongClick(View view) {

                            Intent cliconwishitem = new Intent(WishItemsActivity.this, ClickOnWishItemActivity.class);
                            cliconwishitem.putExtra("PostKey", PostKey);
                            cliconwishitem.putExtra("Key", Key);
                            startActivity(cliconwishitem);


                            return false;
                        }
                    });


                    viewHolder.mView.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View view) {


                        }
                    });
                }
            };


    WishItemList.setAdapter(firebaseRecyclerAdapter);


}

public static class WishItemViewHolder extends RecyclerView.ViewHolder {

    View mView;


    public WishItemViewHolder(@NonNull View itemView) {
        super(itemView);
        mView = itemView;

    }

    public void setWishitemname(String wishitemname) {

        TextView wishitemname1 = (TextView) mView.findViewById(R.id.tv_wishitemname);
        wishitemname1.setText(wishitemname);
    }

    public void setChecked (boolean Checked){


        CheckBox checked = (CheckBox)mView.findViewById(R.id.checkBox);
        checked.setChecked(Checked);


    }


}


private void SendUserToAddWishItemActivity() {

    Intent addwishitem = new Intent(WishItemsActivity.this, AddWishItemActivity.class);
    addwishitem.putExtra("Key", Key);
    startActivity(addwishitem);
}



private void SendUserToMainUserActivity() {

    Intent mainuseractivity = new Intent(WishItemsActivity.this, MainUserActivity.class);
    startActivity(mainuseractivity);
}

private void SendUserToAddWishListActivity() {

    Intent addwishlistactivity = new Intent(WishItemsActivity.this, AddWishItemActivity.class);
    startActivity(addwishlistactivity);

回答1:

You are getting currentUserId from firebase auth. So you can hide/unhide checkbox based on currentUserId.

if(currentUserId != null){
    checked.setVisibility(View.INVISIBLE);
}

来源：https://stackoverflow.com/questions/57933618/hide-a-checkbox-for-the-current-user-that-is-logged-in-the-app