我正在尝试建立一项活动，当用户访问该活动时，它将告诉用户有多少可用的GPS卫星以及信号的强度，但是由于我什至无法获得卫星号，所以我有点卡住了。
现在，我已经花了一个多月的时间来尝试使其工作，方法是使代码在活动本身或多达几个扩展或实现GpsStatus，GpsStatus.Listener或LocationManager的类中完成，茫然的任何人有任何想法吗？
所有这些代码都在活动本身中。 我已经删除了所有尝试过的类和代码的使用方式，但是无法正常工作，这是我所获得的最接近的类，并且所有计数变量都不会返回零。
@TargetApi(Build.VERSION_CODES.N)
public void countSatellites(){
int satellites = 0;
int satellitesInFix = 0;
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
GpsStatus status = locationManager.getGpsStatus(null);
Iterable sats = status.getSatellites();
Iterator satI = sats.iterator();
int count = 0;
while(satI.hasNext()){
GpsSatellite gpssatellite = (GpsSatellite) satI.next();
if (gpssatellite.usedInFix()){
count++;
}
}
int timetofix = locationManager.getGpsStatus(null).getTimeToFirstFix();
for (GpsSatellite sat : locationManager.getGpsStatus(null).getSatellites()) {
if (sat.usedInFix()) {
satellitesInFix++;
}
satellites++;
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case 1: {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (checkLocationPermission()) {
countSatellites();
}
} else {
}
return;
}
}
}
public boolean checkLocationPermission() {
String permission = "android.permission.ACCESS_FINE_LOCATION";
int res = this.checkCallingOrSelfPermission(permission);
return (res == PackageManager.PERMISSION_GRANTED);
}
@TargetApi(Build.VERSION_CODES.M)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_connections);
LocationUpdateService locationService = new LocationUpdateService();
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 1);
}
在另一个文件中
public class LocationUpdateService extends Service implements GpsStatus.Listener{
public void onCreate(){
Log.i("on create", "success");
super.onCreate();
registerGpsStatusListener();
}
private void registerGpsStatusListener() {
Log.i("gps listener", "success");
ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION);
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.addGpsStatusListener(this);
}
@Override
public void onGpsStatusChanged(int event) {
Log.i("gps change", "success");
switch (event) {
case GpsStatus.GPS_EVENT_STARTED:
Log.e("gps started", "onGpsStatusChanged started");
break;
case GpsStatus.GPS_EVENT_STOPPED:
Log.e("gps stopped", "onGpsStatusChanged stopped");
break;
case GpsStatus.GPS_EVENT_FIRST_FIX:
Log.e("gps first", "onGpsStatusChanged first fix");
break;
case GpsStatus.GPS_EVENT_SATELLITE_STATUS:
Log.e("gps status", "onGpsStatusChanged status");
break;
}
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
Log.i("on bind", "success");
return null;
}
public void onLocationChanged(Location location) {
Log.i("location change", "success");
}
}