Examples with DataSnapshot com.google.firebase.database.DataSnapshot used on opensource projects

Example 66 with DataSnapshot

use of com.google.firebase.database.DataSnapshot in project MadMax by deviz92.

the class GroupsFragment method onCreateView.

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    Log.i(TAG, "onCreateView");
    setInterface((OnItemClickInterface) getActivity(), (OnItemLongClickInterface) getActivity());
    final View view = inflater.inflate(R.layout.skeleton_list, container, false);
    databaseReference = FirebaseDatabase.getInstance().getReference();
    RecyclerView.ItemDecoration divider = new InsetDivider.Builder(getContext()).orientation(InsetDivider.VERTICAL_LIST).dividerHeight(getResources().getDimensionPixelSize(R.dimen.divider_height)).color(ContextCompat.getColor(getContext(), R.color.colorDivider)).insets(getResources().getDimensionPixelSize(R.dimen.divider_inset), 0).overlay(true).build();
    recyclerView = (RecyclerView) view.findViewById(R.id.rv_skeleton);
    layoutManager = new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false);
    recyclerView.setLayoutManager(layoutManager);
    recyclerView.addItemDecoration(divider);
    groups.clear();
    groupsViewAdapter = new GroupsViewAdapter(this.getContext(), this, this, groups, GroupsFragment.TAG);
    recyclerView.setAdapter(groupsViewAdapter);
    // Ascolto i gruppi dello user
    databaseReference.child("users").child(MainActivity.getCurrentUID()).child("groups").addValueEventListener(new ValueEventListener() {

        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            // Per ogni gruppo dello user
            for (DataSnapshot groupSnapshot : dataSnapshot.getChildren()) {
                // Se il gruppo è true, ossia è ancora tra quelli dello user
                try {
                    Boolean trueGroup = (Boolean) groupSnapshot.getValue();
                    if (trueGroup)
                        getGroupAndBalance(MainActivity.getCurrentUID(), groupSnapshot.getKey());
                    else {
                        // tolgo il gruppo da quelli che verranno stampati, così lo vedo sparire realtime
                        groups.remove(groupSnapshot.getKey());
                        groupsViewAdapter.update(groups);
                        groupsViewAdapter.notifyDataSetChanged();
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                    Log.d(TAG, groupSnapshot.getValue().toString());
                }
            }
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
            Log.w(TAG, databaseError.toException());
        }
    });
    return view;
}

Example 67 with DataSnapshot

use of com.google.firebase.database.DataSnapshot in project FindMyHome by DjangoBlockchained.

the class ShelterDetailActivity method onCreate.

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_shelter_details);
    list = findViewById(R.id.shelterdetails);
    claimbutton = (Button) findViewById(R.id.claimbutton);
    adapter = new ArrayAdapter(ShelterDetailActivity.this, android.R.layout.simple_list_item_1, details);
    username = getIntent().getStringExtra("username");
    String name = getIntent().getStringExtra("Shelter Name");
    shelterRef = FirebaseDatabase.getInstance().getReference().child("shelters").child(name);
    claimbutton.setOnClickListener((view) -> {
        Intent intent = new Intent(ShelterDetailActivity.this, ClaimScreenActivity.class);
        intent.putExtra("username", username);
        intent.putExtra("Shelter Name", name);
        startActivity(intent);
    });
    shelterRef.addChildEventListener(new ChildEventListener() {

        @Override
        public void onChildAdded(DataSnapshot dataSnapshot, String s) {
            Object data = dataSnapshot.getValue();
            details.add(getLabel(dataSnapshot.getKey(), data));
            adapter.notifyDataSetChanged();
        }

        @Override
        public void onChildChanged(DataSnapshot dataSnapshot, String s) {
            Object data = dataSnapshot.getValue();
            String key = dataSnapshot.getKey();
            // Find the current row for the key and replace it with the new value.
            int index = -1;
            boolean found = false;
            for (int i = 0; i < details.size() && !found; i++) {
                if (details.get(i).contains(key)) {
                    index = i;
                    found = true;
                }
            }
            if (index != -1) {
                details.set(index, getLabel(dataSnapshot.getKey(), data));
            } else {
                details.add(getLabel(dataSnapshot.getKey(), data));
            }
            adapter.notifyDataSetChanged();
        }

        @Override
        public void onChildRemoved(DataSnapshot dataSnapshot) {
        }

        @Override
        public void onChildMoved(DataSnapshot dataSnapshot, String s) {
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
        }
    });
    list.setAdapter(adapter);
}

Example 68 with DataSnapshot

use of com.google.firebase.database.DataSnapshot in project FindMyHome by DjangoBlockchained.

the class ShelterListActivity method showSearchedShelter.

private void showSearchedShelter(String name, String gender, String age) {
    shelterRef.addChildEventListener(new ChildEventListener() {

        @Override
        public void onChildAdded(DataSnapshot dataSnapshot, String s) {
            Map<String, Object> string = (Map<String, Object>) dataSnapshot.getValue();
            String restriction = string.get("restrictions").toString();
            String dbname = string.get("name").toString();
            if (gender.equals("Any")) {
                if (dbname.toLowerCase().contains(name.toLowerCase()) && (((!(restriction.contains("Men") || (restriction.contains("Women")))) || (restriction.contains("Anyone"))) && ((restriction.contains(age)) || (restriction.contains("Anyone"))))) {
                    names.add(string.get("name").toString());
                    adapter.notifyDataSetChanged();
                }
            } else if (!gender.equals("")) {
                if (dbname.toLowerCase().contains(name.toLowerCase()) && (((!restriction.contains(gender)) || (restriction.contains("Anyone"))) && ((restriction.contains(age)) || (restriction.contains("Anyone"))))) {
                    names.add(string.get("name").toString());
                    adapter.notifyDataSetChanged();
                }
            } else {
                if (dbname.toLowerCase().contains(name.toLowerCase()) && ((restriction.contains(age)) || (restriction.contains("Anyone")))) {
                    names.add(string.get("name").toString());
                    adapter.notifyDataSetChanged();
                }
            }
        }

        @Override
        public void onChildChanged(DataSnapshot dataSnapshot, String s) {
        }

        @Override
        public void onChildRemoved(DataSnapshot dataSnapshot) {
        }

        @Override
        public void onChildMoved(DataSnapshot dataSnapshot, String s) {
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
        }
    });
    list.setAdapter(adapter);
    list.setOnItemClickListener((parent, view, position, id) -> {
        String selected = (String) list.getItemAtPosition(position);
        Intent intent = new Intent(ShelterListActivity.this, ShelterDetailActivity.class);
        intent.putExtra("username", username);
        intent.putExtra("Shelter Name", selected);
        startActivity(intent);
    });
}

Example 69 with DataSnapshot

use of com.google.firebase.database.DataSnapshot in project SocialRec by Jkuras.

the class MainActivity method getPosts.

// sets listener at db/posts/deals/:all
// loads posts into mPosts, listener calls setUI
public void getPosts() {
    mref = mDataBase.getReference("posts/deals");
    ValueEventListener postListener = new ValueEventListener() {

        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            // initialize array of all posts and add them to mPosts
            mPosts = new ArrayList<DealPost>();
            for (DataSnapshot child : dataSnapshot.getChildren()) {
                mPosts.add((DealPost) child.getValue(DealPost.class));
            }
            setUI();
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
            // Getting Post failed, log a message
            Log.w(TAG, "loadPost:onCancelled", databaseError.toException());
        // ...
        }
    };
    mref.addListenerForSingleValueEvent(postListener);
}