uk.ac.horizon.artcodes.fragment.ExperienceRecommendFragment.java Source code

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Here is the source code for uk.ac.horizon.artcodes.fragment.ExperienceRecommendFragment.java

Source

/*
 * Artcodes recognises a different marker scheme that allows the
 * creation of aesthetically pleasing, even beautiful, codes.
 * Copyright (C) 2013-2016  The University of Nottingham
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU Affero General Public License as published
 *     by the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU Affero General Public License for more details.
 *
 *     You should have received a copy of the GNU Affero General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package uk.ac.horizon.artcodes.fragment;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationManager;
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.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import uk.ac.horizon.artcodes.GoogleAnalytics;
import uk.ac.horizon.artcodes.R;
import uk.ac.horizon.artcodes.activity.NavigationActivity;
import uk.ac.horizon.artcodes.adapter.ExperienceGroupAdapter;
import uk.ac.horizon.artcodes.databinding.ListBinding;

public class ExperienceRecommendFragment extends ArtcodeFragmentBase {
    private static final int LOCATION_PERMISSION_REQUEST = 87;

    private ExperienceGroupAdapter adapter;

    @NonNull
    @Override
    public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        ListBinding binding = ListBinding.inflate(inflater, container, false);
        adapter = new ExperienceGroupAdapter(getActivity(), getServer());
        binding.setAdapter(adapter);
        return binding.getRoot();
    }

    @Override
    public void onStart() {
        super.onStart();

        if (ContextCompat.checkSelfPermission(getContext(),
                Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            requestPermissions(new String[] { Manifest.permission.ACCESS_FINE_LOCATION },
                    LOCATION_PERMISSION_REQUEST);
        }
    }

    @Override
    public void onResume() {
        super.onResume();
        GoogleAnalytics.trackScreen("View Recommended");
        getActivity().setTitle(R.string.nav_home);

        loadExperiences();
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
            @NonNull int[] grantResults) {
        switch (requestCode) {
        case LOCATION_PERMISSION_REQUEST: {
            loadExperiences();
        }
        }
    }

    private void loadExperiences() {
        loadLocal();
        adapter.loadStarted();
        getServer().loadRecommended(adapter.getCallback(), getLocation());
    }

    private void navigateTo(Fragment fragment) {
        if (getActivity() instanceof NavigationActivity) {
            NavigationActivity activity = (NavigationActivity) getActivity();
            activity.navigate(fragment, true);
        }
    }

    private void loadLocal() {
        adapter.loadStarted();
        getServer().loadRecent(adapter.getCallback("recent", new View.OnClickListener() {
            @Override
            public void onClick(final View v) {
                navigateTo(new ExperienceRecentFragment());
            }
        }));
        adapter.loadStarted();
        getServer().loadStarred(adapter.getCallback("starred", new View.OnClickListener() {
            @Override
            public void onClick(final View v) {
                navigateTo(new ExperienceStarFragment());
            }
        }));
    }

    @Nullable
    private Location getLocation() {
        if (ContextCompat.checkSelfPermission(getContext(),
                Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            final LocationManager locationManager = (LocationManager) getContext().getApplicationContext()
                    .getSystemService(Context.LOCATION_SERVICE);
            float accuracy = Float.MAX_VALUE;
            Location location = null;
            for (String provider : locationManager.getProviders(new Criteria(), true)) {
                Location newLocation = locationManager.getLastKnownLocation(provider);
                if (newLocation != null) {
                    if (newLocation.getAccuracy() < accuracy) {
                        accuracy = newLocation.getAccuracy();
                        location = newLocation;
                    }
                }
            }

            return location;
        } else {
            Log.i("location", "No location permission");
        }
        return null;
    }
}