[Hilfe Benötigt] App stürzt ab

1import java.util.List;
2
3import android.app.Activity;
4import android.content.Context;
5import android.hardware.Sensor;
6import android.hardware.SensorEvent;
7import android.hardware.SensorEventListener;
8import android.hardware.SensorManager;
9import android.location.Criteria;
10import android.location.Location;
11import android.location.LocationListener;
12import android.location.LocationManager;
13import android.location.LocationProvider;
14import android.os.Bundle;
15import android.util.Log;
16import android.widget.TextView;
17import android.widget.Toast;
18
19public class Main extends Activity {
20
21 private static final String TAG = Main.class.getSimpleName();
22
23 TextView degree, tv_latitude, tv_longitude, tv_accuracy, speed;
24 private static SensorManager mySensorManager;
25 private boolean sersorrunning;
26 LocationManager manager;
27 LocationListener listener;
28
29 @Override
30 protected void onCreate(Bundle savedInstanceState) {
31 // TODO Auto-generated method stub
32 super.onCreate(savedInstanceState);
33 setContentView(R.layout.main);
34
35 degree = (TextView) findViewById(R.id.degree);
36 tv_latitude = (TextView) findViewById(R.id.tv_latitude);
37 tv_longitude = (TextView) findViewById(R.id.tv_longitude);
38 tv_accuracy = (TextView) findViewById(R.id.tv_accuracy);
39
40 mySensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
41 @SuppressWarnings("deprecation")
42 List<Sensor> mySensors = mySensorManager
43 .getSensorList(Sensor.TYPE_ORIENTATION);
44
45 if (mySensors.size() > 0) {
46 mySensorManager.registerListener(mySensorEventListener,
47 mySensors.get(0), SensorManager.SENSOR_DELAY_NORMAL);
48 sersorrunning = true;
49 Toast.makeText(this, "Start ORIENTATION Sensor", Toast.LENGTH_LONG)
50 .show();
51 } else {
52 Toast.makeText(this, "No ORIENTATION Sensor", Toast.LENGTH_LONG)
53 .show();
54 sersorrunning = false;
55 finish();
56 }
57
58 manager = (LocationManager) getSystemService(LOCATION_SERVICE);
59
60 List<String> providers = manager.getAllProviders();
61 for (String name : providers) {
62 LocationProvider lp = manager.getProvider(name);
63 Log.d(TAG,
64 lp.getName() + " --- isProviderEnabled(): "
65 + manager.isProviderEnabled(name));
66 Log.d(TAG, "requiresCell(): " + lp.requiresCell());
67 Log.d(TAG, "requiresNetwork(): " + lp.requiresNetwork());
68 Log.d(TAG, "requiresSatellite(): " + lp.requiresSatellite());
69
70 }
71 Criteria criteria = new Criteria();
72 criteria.setAccuracy(Criteria.ACCURACY_FINE);
73 criteria.setPowerRequirement(Criteria.POWER_HIGH);
74 String name = manager.getBestProvider(criteria, true);
75 Log.d(TAG, name);
76 listener = new LocationListener() {
77
78 public void onLocationChanged(Location location) {
79 // TODO Auto-generated method stub
80 Log.d(TAG, "onLocationChanged()");
81 if (location != null) {
82 String lat = Location.convert(location.getLatitude(),
83 Location.FORMAT_SECONDS);
84 tv_latitude.setText(lat);
85 String lon = Location.convert(location.getLongitude(),
86 Location.FORMAT_SECONDS);
87 tv_longitude.setText(lon);
88 String acc = "" + location.getAccuracy();
89 tv_accuracy.setText(String.format("%2.0f m",
90 (location.getAccuracy())));
91 }
92 }
93
94 public void onProviderDisabled(String provider) {
95 // TODO Auto-generated method stub
96 Log.d(TAG, "onProviderDisabled()");
97 }
98
99 public void onProviderEnabled(String provider) {
100 // TODO Auto-generated method stub
101 Log.d(TAG, "onProviderEnabled()");
102 }
103
104 public void onStatusChanged(String provider, int status,
105 Bundle extras) {
106 // TODO Auto-generated method stub
107 Log.d(TAG, "onStatusChanged()");
108 }
109
110 };
111
112 }
113
114 @Override
115 protected void onStart() {
116 super.onStart();
117 Log.d(TAG, "onStart()");
118 manager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,
119 listener);
120 }
121
122 @Override
123 protected void onPause() {
124 super.onPause();
125 Log.d(TAG, "onPause()");
126 manager.removeUpdates(listener);
127 }
128
129 private SensorEventListener mySensorEventListener = new SensorEventListener() {
130
131 public void onSensorChanged(SensorEvent event) {
132 // TODO Auto-generated method stub
133
134 degree.setText(String.format("%03.0f°", event.values[0]));
135
136 }
137
138 public void onAccuracyChanged(Sensor sensor, int accuracy) {
139 // TODO Auto-generated method stub
140
141 }
142 };
143
144 @Override
145 protected void onDestroy() {
146 // TODO Auto-generated method stub
147 super.onDestroy();
148 if (sersorrunning) {
149 mySensorManager.unregisterListener(mySensorEventListener);
150
151 }
152 }
153
154}

1public void onLocationChanged(Location location) {
2...
3speed.setText(String.format("%2.0f",(location.getSpeed())));
4}

1<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

112-08 02:29:57.348: D/Main(3112): onLocationChanged()
212-08 02:29:57.348: D/AndroidRuntime(3112): Shutting down VM
312-08 02:29:57.348: W/dalvikvm(3112): threadid=1: thread exiting with uncaught exception (group=0x40aa4a08)
412-08 02:29:57.348: E/AndroidRuntime(3112): FATAL EXCEPTION: main
512-08 02:29:57.348: E/AndroidRuntime(3112): java.lang.NullPointerException
612-08 02:29:57.348: E/AndroidRuntime(3112): at de.madhess.speedhud.Main$2.onLocationChanged(Main.java:93)
712-08 02:29:57.348: E/AndroidRuntime(3112): at android.location.LocationManager$ListenerTransport._handleMessage(LocationManager.java:234)
812-08 02:29:57.348: E/AndroidRuntime(3112): at android.location.LocationManager$ListenerTransport.access$000(LocationManager.java:167)
912-08 02:29:57.348: E/AndroidRuntime(3112): at android.location.LocationManager$ListenerTransport$1.handleMessage(LocationManager.java:183)
1012-08 02:29:57.348: E/AndroidRuntime(3112): at android.os.Handler.dispatchMessage(Handler.java:99)
1112-08 02:29:57.348: E/AndroidRuntime(3112): at android.os.Looper.loop(Looper.java:156)
1212-08 02:29:57.348: E/AndroidRuntime(3112): at android.app.ActivityThread.main(ActivityThread.java:5045)
1312-08 02:29:57.348: E/AndroidRuntime(3112): at java.lang.reflect.Method.invokeNative(Native Method)
1412-08 02:29:57.348: E/AndroidRuntime(3112): at java.lang.reflect.Method.invoke(Method.java:511)
1512-08 02:29:57.348: E/AndroidRuntime(3112): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
1612-08 02:29:57.348: E/AndroidRuntime(3112): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
1712-08 02:29:57.348: E/AndroidRuntime(3112): at dalvik.system.NativeStart.main(Native Method)
1812-08 02:30:01.202: D/Process(3112): killProcess, pid=3112
1912-08 02:30:01.202: D/Process(3112): dalvik.system.VMStack.getThreadStackTrace(Native Method)