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GPSを使用して電話位置を取得しようとしていますが、このコードを試しましたが、何も表示されません（シミュレータ上で実行しています）ここではそれも場所の変更方法を入力していないことを...GPSを使用して電話位置を取得
は、アクティビティコードです：
public class GPS_Service extends Service {
private LocationListener listener;
private LocationManager locationManager;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
listener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
Intent i = new Intent("location_update");
i.putExtra("coordinates",location.getLongitude()+" "+location.getLatitude());
sendBroadcast(i);
}
@Override
public void onStatusChanged(String s, int i, Bundle bundle) {
}
@Override
public void onProviderEnabled(String s) {
}
@Override
public void onProviderDisabled(String s) {
Intent i = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i);
}
};
locationManager = (LocationManager) getApplicationContext().getSystemService(Context.LOCATION_SERVICE);
//noinspection MissingPermission
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,3000,0,listener);
}
@Override
public void onDestroy() {
super.onDestroy();
if(locationManager != null){
//noinspection MissingPermission
locationManager.removeUpdates(listener);
}
}
}
private BroadcastReceiver broadcastReceiver;
@Override
protected void onResume() {
super.onResume();
if(broadcastReceiver==null)
{
broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(getApplicationContext(),"cor",Toast.LENGTH_LONG).show();
// Log.d("cors:",""+intent.getExtras().get("cordinates"));
}
};
}
registerReceiver(broadcastReceiver,new IntentFilter("location_update"));
}
@Override
protected void onDestroy() {
super.onDestroy();
if(broadcastReceiver!=null)
unregisterReceiver(broadcastReceiver);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_settings);
Log.d("oncraet","oncreate");
setSize();
if(!runtime_permissions())
{
enable_buttons();
}
}
private boolean runtime_permissions() {
if (Build.VERSION.SDK_INT >= 23 && ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION,Manifest.permission.ACCESS_COARSE_LOCATION}
,100);
return true;
}
return false;
}
public void enable_buttons()
{
Intent i =new Intent(getApplicationContext(), GPS_Service.class);
startService(i);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == 100) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED && grantResults[1] == PackageManager.PERMISSION_GRANTED) {
enable_buttons();
} else {
runtime_permissions();
}
}
}
、ここでは、サービスクラスのコードです
マニフェストはすべていいです。 何が問題ですか？最初に移動しなくてもアプリを最初の場所に移動させるにはどうすればよいですか？