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/*
* Copyright (C) 2014 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.wearable.speedtracker;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.LatLngBounds;
import com.google.android.gms.maps.model.PolylineOptions;
import android.app.DatePickerDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.format.DateUtils;
import android.util.Log;
import android.view.View;
import android.widget.DatePicker;
import android.widget.TextView;
import com.example.android.wearable.speedtracker.common.LocationEntry;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
/**
* The main activity for the handset application. When a watch device reconnects to the handset
* app, the collected GPS data on the watch, if any, is synced up and user can see his/her track on
* a map. This data is then saved into an internal database and the corresponding data items are
* deleted.
*/
public class PhoneMainActivity extends AppCompatActivity implements
DatePickerDialog.OnDateSetListener, OnMapReadyCallback {
private static final String TAG = "PhoneMainActivity";
private static final int BOUNDING_BOX_PADDING_PX = 50;
private TextView mSelectedDateText;
private GoogleMap mMap;
private SupportMapFragment mMapFragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity);
mSelectedDateText = (TextView) findViewById(R.id.selected_date);
mMapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mMapFragment.getMapAsync(this);
}
public void onClick(View view) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
new DatePickerDialog(PhoneMainActivity.this, PhoneMainActivity.this,
calendar.get(Calendar.YEAR),
calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH)).show();
}
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
// the following if-clause is to get around a bug that causes this callback to be called
// twice
if (view.isShown()) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.MONTH, monthOfYear);
calendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
String date = DateUtils.formatDateTime(this, calendar.getTimeInMillis(),
DateUtils.FORMAT_SHOW_DATE);
mSelectedDateText.setText(getString(R.string.showing_for_date, date));
showTrack(calendar);
}
}
/**
* An {@link android.os.AsyncTask} that is responsible for getting a list of {@link
* com.example.android.wearable.speedtracker.common.LocationEntry} objects for a given day and
* building a track from those points. In addition, it sets the smallest bounding box for the
* map that covers all the points on the track.
*/
private void showTrack(Calendar calendar) {
new AsyncTask<Calendar, Void, Void>() {
private List<LatLng> coordinates;
private LatLngBounds bounds;
@Override
protected Void doInBackground(Calendar... params) {
LocationDataManager dataManager = ((PhoneApplication) getApplicationContext())
.getDataManager();
List<LocationEntry> entries = dataManager.getPoints(params[0]);
if (entries != null && !entries.isEmpty()) {
coordinates = new ArrayList<LatLng>();
LatLngBounds.Builder builder = new LatLngBounds.Builder();
for (LocationEntry entry : entries) {
LatLng latLng = new LatLng(entry.latitude, entry.longitude);
builder.include(latLng);
coordinates.add(latLng);
}
bounds = builder.build();
}
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
mMap.clear();
if (coordinates == null || coordinates.isEmpty()) {
if (Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, "No Entries found for that date");
}
} else {
mMap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds,
BOUNDING_BOX_PADDING_PX));
mMap.addPolyline(new PolylineOptions().geodesic(true).addAll(coordinates));
}
}
}.execute(calendar);
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
}
}
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