Blackberry JAVA DEVELOPMENT ENVIRONMENT - - GPS AND MAPS - DEVELOPMENT GUIDE Manuel d'utilisateur télécharger pdf (Page 11)

2: Using GPS

Get location information from GPS satellites and the GPS receiver on a

BlackBerry device

1. Create an instance of a Criteria object.

Criteria criteria = new Criteria();

2. Perform one of the following sets of tasks:

Get accurate location information

Get approximate location information

3. To specify that this mode can incur cost, invoke criteria.setCostAllowed(true).

4. To specify power consumption is high, invoke

criteria.setPreferredPowerConsumption(POWER_USAGE_HIGH).

5. Invoke LocationProvider.getInstance(), storing the returned object in a LocationProvider object.

LocationProvider provider = LocationProvider.getInstance(criteria);

Get location information from the GPS receiver on a BlackBerry device

1. Create an instance of a Criteria object.

Criteria criteria = new Criteria();

Task Steps

Specify longitudinal accuracy is

required.

>Invoke criteria.setHorizontalAccuracy(int accuracy) using an integer value

that represents the accuracy, in meters.

criteria.setHorizontalAccuracy(50);

Specify latitudinal accuracy is

required.

>Invoke criteria.setVerticalAccuracy(int accuracy)using an integer value that

represents the accuracy, in meters

criteria.setVerticalAccuracy(50);

Task Steps

Specify longitudinal accuracy is not

required.

>Invoke criteria.setHorizontalAccuracy(NO_REQUIREMENT).

criteria.setHorizontalAccuracy(NO_REQUIREMENT);

Specify latitudinal accuracy is not

required.

>Invoke criteria.setVerticalAccuracy(NO_REQUIREMENT).

criteria.setVerticalAccuracy(NO_REQUIREMENT);

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Blackberry JAVA DEVELOPMENT ENVIRONMENT - - GPS AND MAPS - DEVELOPMENT GUIDE Manuel d'utilisateur Page 11