The JSR 179 Location API is supported on BlackBerry devices that run BlackBerry Device Software 4.0.2 or later.

1. Import the required class.

   import javax.microedition.location.Criteria;

2. Create a class and constructor.

   public class handleGPS
   {
       public handleGPS()
       {
       }
   }

3. In the constructor, create an instance of the Criteria class. Create a variable to specify a GPS mode.

   Criteria myCriteria = new Criteria();
   int myMode = 2; // AUTONOMOUS

4. In the constructor, map the properties for each GPS mode by invoking the corresponding set method for each property.

   switch ( myMode )
   {
       case 0: // CELLSITE
           myCriteria.setPreferredPowerConsumption(Criteria.POWER_USAGE_LOW);
           myCriteria.setHorizontalAccuracy(Criteria.NO_REQUIREMENT);
           myCriteria.setVerticalAccuracy(Criteria.NO_REQUIREMENT);
           myCriteria.setCostAllowed(true);
           break;
   
       case 1: // ASSIST
           myCriteria.setPreferredPowerConsumption(Criteria.POWER_USAGE_MEDIUM);
           myCriteria.setHorizontalAccuracy(100);
           myCriteria.setVerticalAccuracy(100);
           myCriteria.setCostAllowed(true);
           break;
   
       case 2: // AUTONOMOUS
           myCriteria.setCostAllowed(false);
           break;
   }