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AI 144372: Cleanup Settings support for enabling and disabling location providers:

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LocationManagerService now listens for changes to settings,
  making LocationManager.updateProviders() unnecessary.
  Removed LocationManager.updateProviders()
  Added Settings.Secure.setLocationProviderEnabled(), which is a thread-safe way
  of enabling or disabling a single location provider.
  This is safer than reading, modifying and writing the LOCATION_PROVIDERS_ALLOWED directly.
  BUG=1729031

Automated import of CL 144372
This commit is contained in:
Mike Lockwood
2009-04-02 21:41:57 -07:00
committed by The Android Open Source Project
parent e8302ee00e
commit 074149da80
1 changed files with 10 additions and 46 deletions
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56
src/com/android/settings/SecuritySettings.java
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@@ -64,7 +64,6 @@ public class SecuritySettings extends PreferenceActivity
private CheckBoxPreference mNetwork;
private CheckBoxPreference mGps;
private LocationManager mLocationManager;
// To track whether Agree was clicked in the Network location warning dialog
private boolean mOkClicked;
@@ -78,10 +77,6 @@ public class SecuritySettings extends PreferenceActivity
createPreferenceHierarchy();
// Get the available location providers
mLocationManager = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
mNetwork = (CheckBoxPreference) getPreferenceScreen().findPreference(LOCATION_NETWORK);
mGps = (CheckBoxPreference) getPreferenceScreen().findPreference(LOCATION_GPS);
updateToggles();
@@ -202,10 +197,12 @@ public class SecuritySettings extends PreferenceActivity
.show()
.setOnDismissListener(this);
} else {
updateProviders();
Settings.Secure.setLocationProviderEnabled(getContentResolver(),
LocationManager.NETWORK_PROVIDER, false);
}
} else if (preference == mGps) {
updateProviders();
Settings.Secure.setLocationProviderEnabled(getContentResolver(),
LocationManager.GPS_PROVIDER, mGps.isChecked());
}
return false;
@@ -213,7 +210,8 @@ public class SecuritySettings extends PreferenceActivity
public void onClick(DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON_POSITIVE) {
updateProviders();
Settings.Secure.setLocationProviderEnabled(getContentResolver(),
LocationManager.NETWORK_PROVIDER, true);
mOkClicked = true;
} else {
// Reset the toggle
@@ -232,44 +230,10 @@ public class SecuritySettings extends PreferenceActivity
* Creates toggles for each available location provider
*/
private void updateToggles() {
String providers = getAllowedProviders();
mNetwork.setChecked(providers.contains(LocationManager.NETWORK_PROVIDER));
mGps.setChecked(providers.contains(LocationManager.GPS_PROVIDER));
}
private void updateProviders() {
String preferredProviders = "";
if (mNetwork.isChecked()) {
preferredProviders += LocationManager.NETWORK_PROVIDER;
}
if (mGps.isChecked()) {
preferredProviders += "," + LocationManager.GPS_PROVIDER;
}
setProviders(preferredProviders);
}
private void setProviders(String providers) {
// Update the secure setting LOCATION_PROVIDERS_ALLOWED
Settings.Secure.putString(getContentResolver(),
Settings.Secure.LOCATION_PROVIDERS_ALLOWED, providers);
if (Config.LOGV) {
Log.v("Location Accuracy", "Setting LOCATION_PROVIDERS_ALLOWED = " + providers);
}
// Inform the location manager about the changes
mLocationManager.updateProviders();
}
/**
* @return string containing a list of providers that have been enabled for use
*/
private String getAllowedProviders() {
String allowedProviders =
Settings.Secure.getString(getContentResolver(),
Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
if (allowedProviders == null) {
allowedProviders = "";
}
return allowedProviders;
mNetwork.setChecked(Settings.Secure.isLocationProviderEnabled(
getContentResolver(), LocationManager.NETWORK_PROVIDER));
mGps.setChecked(Settings.Secure.isLocationProviderEnabled(
getContentResolver(), LocationManager.GPS_PROVIDER));
}
private boolean isToggled(Preference pref) {