4G接続のandroidタブレットの位置情報を正確に屋外で追跡したい

現在FusedLocationApiで、アプリを作ったのですが、エミュレーターで手動で位置を操作すると、onLocationChanged()が呼び出されますが、実際に1kmほど歩いても、
実験した大学のある一点をさしたまま、ピンが移動されることはありませんでした。

基地局がそこにしかないからそのような表示になるのでしょうか？

どうすればいいでしょうか？

java
1
2
3public class LocationActivity extends FragmentActivity implements
4        GoogleApiClient.ConnectionCallbacks,
5        GoogleApiClient.OnConnectionFailedListener,
6        LocationListener {
7
8 
9
10
11    @Override
12    protected void onCreate(Bundle savedInstanceState) {
13        super.onCreate(savedInstanceState);
14        setContentView(R.layout.activity_main);
15        
16        
17
18        // LocationRequest を生成して精度、インターバルを設定
19        locationRequest = LocationRequest.create();
20       
21        locationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
22        locationRequest.setInterval(50000);
23        locationRequest.setFastestInterval(1000);
24        locationRequest.setSmallestDisplacement(1);
25
26       // locationRequest.setInterval(5000).setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
27        //locationRequest.setExpirationDuration();このリクエストの期間をミリ秒単位
28        //locationRequest.setExpirationTime();起動後の要求の有効期限
29        //locationRequest.setMaxWaitTime();複数の場所を一度に配信できます。
30        //locationRequest.setNumUpdates();新しい場所が1つだけ必要な場合
31        //locationRequest.setPriority(1);//要求の優先順位を設定
32
33
34        fusedLocationProviderApi = LocationServices.FusedLocationApi;
35
36        mGoogleApiClient = new GoogleApiClient.Builder(this)
37                .addApi(LocationServices.API)
38                .addConnectionCallbacks(this)
39                .addOnConnectionFailedListener(this)
40                .build();
41        
42        // 測位開始
43        Button buttonStart = (Button)findViewById(R.id.button_start);
44        buttonStart.setOnClickListener(new View.OnClickListener() {
45            @Override
46            public void onClick(View v) {
47                startFusedLocation();
48            }
49        });
50
51        // 測位終了
52        Button buttonStop = (Button)findViewById(R.id.button_stop);
53        buttonStop.setOnClickListener(new View.OnClickListener() {
54            @Override
55            public void onClick(View v) {
56                stopFusedLocation();
57            }
58        });
59
60    }
61    
62
63    private void startFusedLocation(){
64        if (!mResolvingError) {
65            mGoogleApiClient.connect();
66            
67        } else {
68        }
69
70    }
71
72    private void stopFusedLocation(){
73        // Disconnecting the client invalidates it.
74        mGoogleApiClient.disconnect();
75    }
76
77    @Override
78    protected void onStart() {
79        super.onStart();
80
81    }
82
83    @Override
84    protected void onStop() {
85        super.onStop();
86        stopFusedLocation();
87    }
88
89
90    @Override
91    public void onConnected(Bundle bundle) {
92
93        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
94            return;
95        }
96        Location currentLocation = fusedLocationProviderApi.getLastLocation(mGoogleApiClient);
97
98        if (currentLocation != null && currentLocation.getTime() > 20000) {
99            location = currentLocation;
100
101            textLog += "---------- onConnected \n";
102            textLog += "Latitude=" + String.valueOf(location.getLatitude()) + "\n";
103            textLog += "Longitude=" + String.valueOf(location.getLongitude()) + "\n";
104            textLog += "Accuracy=" + String.valueOf(location.getAccuracy()) + "\n";
105            textLog += "Altitude=" + String.valueOf(location.getAltitude()) + "\n";
106            textLog += "Time=" + String.valueOf(location.getTime()) + "\n";
107            textLog += "Speed=" + String.valueOf(location.getSpeed()) + "\n";
108            textLog += "Bearing=" + String.valueOf(location.getBearing()) + "\n";
109            textView.setText(textLog);
110            
111
112        } else {
113            // バックグラウンドから戻ってしまうと例外が発生する場合がある
114            try {
115                
116                fusedLocationProviderApi.requestLocationUpdates(mGoogleApiClient, locationRequest, this);
117                Executors.newScheduledThreadPool(1).schedule(new Runnable() {
118                    @Override
119                    public void run() {
120                        fusedLocationProviderApi.removeLocationUpdates(mGoogleApiClient, LocationActivity.this);
121                    }
122                }, 60000, TimeUnit.MILLISECONDS);
123
124                textLog += "onConnected(), requestLocationUpdates \n";
125                textView.setText(textLog);
126
127            } catch (Exception e) {
128                e.printStackTrace();
129                  finish();
130            }
131        }
132    }
133
134
135        @Override
136        public void onLocationChanged(Location location) {
137            lastLocationTime = location.getTime() - lastLocationTime;
138
139            textLog += "2---------- onLocationChanged \n";
140            textLog += "2Latitude=" + String.valueOf(location.getLatitude()) + "\n";
141            textLog += "2Longitude=" + String.valueOf(location.getLongitude()) + "\n";
142            textLog += "2Accuracy=" + String.valueOf(location.getAccuracy()) + "\n";
143            textLog += "2Altitude=" + String.valueOf(location.getAltitude()) + "\n";
144            textLog += "2Time=" + String.valueOf(location.getTime()) + "\n";
145            textLog += "2Speed=" + String.valueOf(location.getSpeed()) + "\n";
146            textLog += "2Bearing=" + String.valueOf(location.getBearing()) + "\n";
147            textLog += "2time= " + String.valueOf(lastLocationTime) + " msec \n";
148            textView.setText(textLog);
149        }
150
151    @Override
152    public void onConnectionSuspended(int i) {
153         }
154
155    @Override
156    public void onConnectionFailed(ConnectionResult connectionResult) {
157        
158        if (mResolvingError) {
159          
160            return;
161        } else if (connectionResult.hasResolution()) {
162
163        } else {
164            mResolvingError = true;
165        }
166    }