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Use settings flag to control HAL location request

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Bug: 77696830
Test: adb command to change the flag and verified it is used.
Change-Id: I669b854a951a0bff37dfc5b0eb6f86ceee9ee07a
This commit is contained in:
Yu-Han Yang
2018-04-06 15:57:31 -07:00
parent ab3e7bdd62
commit 74041ff92a
1 changed files with 14 additions and 20 deletions
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34
services/core/java/com/android/server/location/GnssLocationProvider.java
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@@ -16,11 +16,11 @@
package com.android.server.location;
import android.annotation.Nullable;
import android.app.AlarmManager;
import android.app.AppOpsManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
@@ -251,8 +251,6 @@ public class GnssLocationProvider implements LocationProviderInterface, InjectNt
private static final int TCP_MIN_PORT = 0;
private static final int TCP_MAX_PORT = 0xffff;
// 10 seconds.
private static final long LOCATION_TIME_FRESHNESS_THESHOLD_MILLIS = 10 * 1000;
// 1 second, or 1 Hz frequency.
private static final long LOCATION_UPDATE_MIN_TIME_INTERVAL_MILLIS = 1000;
// 30 seconds.
@@ -1038,6 +1036,15 @@ public class GnssLocationProvider implements LocationProviderInterface, InjectNt
}
return;
}
ContentResolver resolver = mContext.getContentResolver();
long durationMillis = Settings.Global.getLong(
resolver,
Settings.Global.GNSS_HAL_LOCATION_REQUEST_DURATION_MILLIS,
LOCATION_UPDATE_DURATION_MILLIS);
if (durationMillis == 0) {
Log.i(TAG, "GNSS HAL location request is disabled by Settings.");
return;
}
LocationManager locationManager = (LocationManager) mContext.getSystemService(
Context.LOCATION_SERVICE);
@@ -1055,7 +1062,9 @@ public class GnssLocationProvider implements LocationProviderInterface, InjectNt
}
Log.i(TAG,
String.format("GNSS HAL Requesting location updates from %s provider.", provider));
String.format(
"GNSS HAL Requesting location updates from %s provider for %d millis.",
provider, durationMillis));
locationManager.requestLocationUpdates(provider,
LOCATION_UPDATE_MIN_TIME_INTERVAL_MILLIS, /*minDistance=*/ 0,
locationListener, mHandler.getLooper());
@@ -1065,7 +1074,7 @@ public class GnssLocationProvider implements LocationProviderInterface, InjectNt
Log.i(TAG, String.format("Removing location updates from %s provider.", provider));
locationManager.removeUpdates(locationListener);
}
}, LOCATION_UPDATE_DURATION_MILLIS);
}, durationMillis);
}
private void injectBestLocation(Location location) {
@@ -1094,21 +1103,6 @@ public class GnssLocationProvider implements LocationProviderInterface, InjectNt
timestamp);
}
/**
* Get the last fresh location.
*
* Return null if the last location is not available or not fresh.
*/
private @Nullable
Location getLastFreshLocation(LocationManager locationManager, String provider) {
Location location = locationManager.getLastKnownLocation(provider);
if (location != null && System.currentTimeMillis() - location.getTime()
< LOCATION_TIME_FRESHNESS_THESHOLD_MILLIS) {
return location;
}
return null;
}
/** Returns true if the location request is too frequent. */
private boolean isRequestLocationRateLimited() {
// TODO(b/73198123): implement exponential backoff.