1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*
* 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 android.app.DatePickerDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.format.DateUtils;
import android.util.Log;
import android.view.View;
import android.widget.DatePicker;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
import com.example.android.wearable.speedtracker.common.LocationEntry;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
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 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;
}
}
|
