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AI 144415: am: CL 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
  Original author: lockwood

Automated import of CL 144415
This commit is contained in:
Mike Lockwood
2009-04-02 23:41:33 -07:00
committed by The Android Open Source Project
parent 75e3034a35
commit bd2a7126e5
5 changed files with 138 additions and 22 deletions
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40
core/java/android/provider/Settings.java
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@@ -2113,6 +2113,46 @@ public final class Settings {
* @hide
*/
public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
/**
* Helper method for determining if a location provider is enabled.
* @param cr the content resolver to use
* @param provider the location provider to query
* @return true if the provider is enabled
*
* @hide
*/
public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
String allowedProviders = Settings.Secure.getString(cr, LOCATION_PROVIDERS_ALLOWED);
if (allowedProviders != null) {
return (allowedProviders.equals(provider) ||
allowedProviders.contains("," + provider + ",") ||
allowedProviders.startsWith(provider + ",") ||
allowedProviders.endsWith("," + provider));
}
return false;
}
/**
* Thread-safe method for enabling or disabling a single location provider.
* @param cr the content resolver to use
* @param provider the location provider to enable or disable
* @param enabled true if the provider should be enabled
*
* @hide
*/
public static final void setLocationProviderEnabled(ContentResolver cr,
String provider, boolean enabled) {
// to ensure thread safety, we write the provider name with a '+' or '-'
// and let the SettingsProvider handle it rather than reading and modifying
// the list of enabled providers.
if (enabled) {
provider = "+" + provider;
} else {
provider = "-" + provider;
}
putString(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider);
}
}
/**