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New Location Manager APIs for Criteria based requests and single shot mode.

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Use MS-Assisted mode for single shot GPS fixes if it is supported.

Add finer grained control over accuracy to the android.location.Criteria class
and location criteria logic from LocationManager to LocationManagerService

Change-Id: I156b1f6c6a45d255c87ff917cf3e9726a6d7a75b
Signed-off-by: Mike Lockwood <lockwood@android.com>
This commit is contained in:
Mike Lockwood
2010-04-01 08:10:09 -07:00
parent 4979601f88
commit 03ca216ac1
13 changed files with 970 additions and 347 deletions
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35
location/java/android/location/LocationProvider.java
View File

@@ -16,6 +16,9 @@
package android.location;
import android.os.RemoteException;
import android.util.Log;
/**
* An abstract superclass for location providers. A location provider
* provides periodic reports on the geographical location of the
@@ -36,7 +39,8 @@ public abstract class LocationProvider {
// in the name of a LocationProvider.
static final String BAD_CHARS_REGEX = "[^a-zA-Z0-9]";
private String mName;
private final String mName;
private final ILocationManager mService;
public static final int OUT_OF_SERVICE = 0;
public static final int TEMPORARILY_UNAVAILABLE = 1;
@@ -50,13 +54,13 @@ public abstract class LocationProvider {
*
* {@hide}
*/
public LocationProvider(String name) {
public LocationProvider(String name, ILocationManager service) {
if (name.matches(BAD_CHARS_REGEX)) {
throw new IllegalArgumentException("name " + name +
" contains an illegal character");
}
// Log.d(TAG, "Constructor: name = " + name);
mName = name;
mService = service;
}
/**
@@ -71,29 +75,12 @@ public abstract class LocationProvider {
* false otherwise.
*/
public boolean meetsCriteria(Criteria criteria) {
// We do not want to match the special passive provider based on criteria.
if (LocationManager.PASSIVE_PROVIDER.equals(mName)) {
try {
return mService.providerMeetsCriteria(mName, criteria);
} catch (RemoteException e) {
Log.e(TAG, "meetsCriteria: RemoteException", e);
return false;
}
if ((criteria.getAccuracy() != Criteria.NO_REQUIREMENT) &&
(criteria.getAccuracy() < getAccuracy())) {
return false;
}
int criteriaPower = criteria.getPowerRequirement();
if ((criteriaPower != Criteria.NO_REQUIREMENT) &&
(criteriaPower < getPowerRequirement())) {
return false;
}
if (criteria.isAltitudeRequired() && !supportsAltitude()) {
return false;
}
if (criteria.isSpeedRequired() && !supportsSpeed()) {
return false;
}
if (criteria.isBearingRequired() && !supportsBearing()) {
return false;
}
return true;
}
/**