When methods from the location manager class of Android API is called, The following warnings keep showing up. I am using the latest Android Studio 2.1 and the target OS is Android 4.0.3 or above. So what's wrong with that? Thanks in advance!
I/dalvikvm: Could not find method android.content.Context.getSystemService, referenced from method .MainActivity$GPSService.access$super
W/dalvikvm: VFY: unable to resolve virtual method 532: Landroid/content/Context;.getSystemService
(Ljava/lang/Class;)Ljava/lang/Object;D/dalvikvm: VFY: replacing opcode 0x6f at 0x0035 I/dalvikvm: Could not find method android.content.Context.getColorStateList, referenced from method
W/dalvikvm: VFY: unable to resolve virtual method 514: Landroid/content/Context;.getColorStateList (I)Landroid/content/res/ColorStateList;
D/dalvikvm: VFY: replacing opcode 0x6f at 0x004f I/dalvikvm: Could not find method android.content.ContextWrapper.getCodeCacheDir, referenced from method
W/dalvikvm: VFY: unable to resolve virtual method 585: Landroid/content/ContextWrapper;.getCodeCacheDir ()Ljava/io/File;
D/dalvikvm: VFY: replacing opcode 0x6f at 0x00e1
I/dalvikvm: Could not find method android.content.ContextWrapper.getNoBackupFilesDir, referenced from method
W/dalvikvm: VFY: unable to resolve virtual method 597: Landroid/content/ContextWrapper;.getNoBackupFilesDir ()Ljava/io/File;
D/dalvikvm: VFY: replacing opcode 0x6f at 0x01f4
I/dalvikvm: Could not find method android.content.Context.getDrawable, referenced from method
W/dalvikvm: VFY: unable to resolve virtual method 516: Landroid/content/Context;.getDrawable (I)Landroid/graphics/drawable/Drawable;
D/dalvikvm: VFY: replacing opcode 0x6f at 0x0317
I/dalvikvm: Could not find method android.content.ContextWrapper.getSystemServiceName, referenced from method
W/dalvikvm: VFY: unable to resolve virtual method 607: Landroid/content/ContextWrapper;.getSystemServiceName (Ljava/lang/Class;)Ljava/lang/String;
D/dalvikvm: VFY: replacing opcode 0x6f at 0x03c6
I/dalvikvm: Could not find method android.content.ContextWrapper.getExternalMediaDirs, referenced from method
W/dalvikvm: VFY: unable to resolve virtual method 593: Landroid/content/ContextWrapper;.getExternalMediaDirs ()[Ljava/io/File;
D/dalvikvm: VFY: replacing opcode 0x6f at 0x040b I/dalvikvm: Could not find method android.content.Context.getColor, referenced from method
W/dalvikvm: VFY: unable to resolve virtual method 513: Landroid/content/Context;.getColor (I)I
D/dalvikvm: VFY: replacing opcode 0x6f at 0x0534
I/dalvikvm: Could not find method android.content.ContextWrapper.checkSelfPermission, referenced from method
W/dalvikvm: VFY: unable to resolve virtual method 561: Landroid/content/ContextWrapper;.checkSelfPermission (Ljava/lang/String;)I
D/dalvikvm: VFY: replacing opcode 0x6f at 0x06d2
public static class GPSService extends Service implements android.location.LocationListener{
MainActivity ma = new MainActivity();
private ScheduledExecutorService scheduleTaskExecutor;
private ScheduledFuture scheduledFuture=null;
private Context sContext = GPSService.this;
private String deviceId;
//= loadStr(getContext(), "deviceId");
final static String TAG = "GPSService";
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// Declaring a Location Manager
protected LocationManager locationManager;
public GPSService() {
super();
}
public Context getContext() {
return sContext;
}
public Location getLocation() {
try {
/*
locationManager = (LocationManager) sContext
.getSystemService(LOCATION_SERVICE);*/
// getting GPS status
/*
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
this.canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
2000,
10, this);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
2000,
10, this);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}else {
showSettingsAlert();
}
}*/
}catch (SecurityException e){
e.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}
return location;
}
public void stopUsingGPS(){
try{
if(locationManager != null){
locationManager.removeUpdates(GPSService.this);
}
}catch (SecurityException e){
e.printStackTrace();
}
}
public double getLatitude(){
if(location != null){
latitude = location.getLatitude();
}
return latitude;
}
public double getLongitude(){
if(location != null){
longitude = location.getLongitude();
}
return longitude;
}
public boolean canGetLocation() {
return this.canGetLocation;
}
public void showSettingsAlert(){
AlertDialog.Builder alertDialog = new AlertDialog.Builder(sContext);
alertDialog.setTitle("GPS");
alertDialog.setMessage("GPS setting");
alertDialog.setPositiveButton("setting", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
sContext.startActivity(intent);
}
});
alertDialog.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alertDialog.show();
}
//--------------------------------------------------------------
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onLocationChanged(Location location) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
//------------------------------------------------------------
@Override
public void onCreate() {
super.onCreate();
Log.d("service","on create");
//getLocation();
try {
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER, 2000, 10, this);
}catch(SecurityException e){
e.printStackTrace();
}
catch(Exception e){
e.printStackTrace();
}
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(final Intent intent, int flags, int startId) {
super.onStartCommand(intent, flags, startId);
Log.d("service","on start cmd");
Bundle extras = intent.getExtras();
if(extras == null){
this.deviceId=null;
Log.d("Service passed id","null");}
else
{
this.deviceId = (String) extras.get("deviceId");
Log.d("passed id",deviceId);
}
scheduleTaskExecutor= Executors.newScheduledThreadPool(5);
scheduledFuture = scheduleTaskExecutor.scheduleAtFixedRate(new Runnable() {
public void run() {
Log.d("inside on Start Cmd","running thread");
try{
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
} catch(SecurityException e){
e.printStackTrace();
}
}
}, 0, 10, TimeUnit.SECONDS);
return START_NOT_STICKY;
}
@Override
public void onDestroy() {
super.onDestroy();
if (scheduledFuture!=null){
scheduledFuture.cancel(false);
Log.d("service" , "on destroy scheduled future");
}
if (locationManager!=null)
stopUsingGPS();
Log.d("service" , "on destroy");
}
}
