com.agmostudio.pasarmalamlocator.NearbyFragment.java Source code

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Here is the source code for com.agmostudio.pasarmalamlocator.NearbyFragment.java

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/*
 * MIT License
 *
 * Copyright (c) 2016. Agmo Studio
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.agmostudio.pasarmalamlocator;

import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;

import java.util.ArrayList;

import io.nlopez.smartlocation.OnLocationUpdatedListener;
import io.nlopez.smartlocation.SmartLocation;

public class NearbyFragment extends Fragment {

    public NearbyFragment() {
        // Required empty public constructor
    }

    NearbyAdapter adapter;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
            @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_nearby, container, false);
    }

    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        // find all the UI from the fragment_nearby layout
        RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.recycler_view);

        // create adapter and setup our list
        adapter = new NearbyAdapter();
        recyclerView.setAdapter(adapter);

        // get the Firebase and listen to any changes to "pasarmalam" table
        FirebaseDatabase database = FirebaseDatabase.getInstance();
        DatabaseReference table = database.getReference("pasarmalam");
        table.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                // convert the Firebase data into PasarMalam
                ArrayList<PasarMalam> list = new ArrayList<>();
                for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
                    list.add(snapshot.getValue(PasarMalam.class));
                }
                adapter.replaceAll(list); // add into our adapter to display UI
            }

            @Override
            public void onCancelled(DatabaseError error) {
                error.toException().printStackTrace();
            }
        });
    }

    @Override
    public void onResume() {
        super.onResume();
        startLocationUpdate(); // start to get location when app resumes
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
            @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 100 && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            startLocationUpdate(); // we have permission, try to get user location
        }
    }

    private void startLocationUpdate() {
        if (ContextCompat.checkSelfPermission(getContext(),
                android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            // we have permission, try to get user location. we only need 1 GPS location
            SmartLocation.LocationControl smartLocation = SmartLocation.with(getContext()).location();
            smartLocation.oneFix().start(new OnLocationUpdatedListener() {
                @Override
                public void onLocationUpdated(Location location) {
                    adapter.setCurrentLocation(location); // tell the adapter of our location
                }
            });
            // if user had a location previous, use it first to quickly display the nearest
            adapter.setCurrentLocation(smartLocation.getLastLocation());
        } else {
            // we dont have permission or user have revoke it, try to ask user
            requestPermissions(new String[] { android.Manifest.permission.ACCESS_FINE_LOCATION }, 100);
        }
    }
}