在Android中,GPS请求位置更新的奇怪行为可能是由于以下几种原因造成的:
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Location lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (lastKnownLocation != null && System.currentTimeMillis() - lastKnownLocation.getTime() < 60000) {
// 如果已经有一个有效的位置,并且距离上次更新时间不超过1分钟,则延迟一段时间再进行下一次更新请求
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
// 进行下一次位置更新请求
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
}
}, 5000); // 延迟5秒钟再进行位置更新请求
} else {
// 进行位置更新请求
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
}
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
GpsStatus gpsStatus = locationManager.getGpsStatus(null);
int satelliteCount = 0;
Iterable satellites = gpsStatus.getSatellites();
for (GpsSatellite satellite : satellites) {
if (satellite.usedInFix()) {
satelliteCount++;
}
}
if (satelliteCount > 0) {
// 如果有可用的卫星,则延迟一段时间再进行下一次更新请求
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
// 进行下一次位置更新请求
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
}
}, 5000); // 延迟5秒钟再进行位置更新请求
} else {
// 进行位置更新请求
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
}
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
List providers = locationManager.getAllProviders();
boolean isOtherAppUsingGPS = false;
for (String provider : providers) {
if (!provider.equals(LocationManager.GPS_PROVIDER)) {
if (locationManager.isProviderEnabled(provider) && locationManager.getProvider(provider) != null
&& locationManager.getProvider(provider).requiresNetwork()) {
isOtherAppUsingGPS = true;
break;
}
}
}
if (isOtherAppUsingGPS) {
// 如果有其他应用正在使用GPS模块,则延迟一段时间再进行下一次更新请求
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run()