j2me简单的获取gps数据
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.location.*;

public class locationMidlet extends MIDlet implements CommandListener
{

Command Exit = new Command("Exit", Command.EXIT, 0);

public locationMidlet()
{
}

public void startApp()
{
Form f = new Form("请等等..");
f.append("正在获取位置信息");
f.addCommand(Exit);
f.setCommandListener(this);
Display.getDisplay(this).setCurrent(f);
try
{
Criteria c = new Criteria();//Criteria在JSR179包里,解压后在javax\microedition\location
c.setHorizontalAccuracy(1000);
c.setVerticalAccuracy(1000);
c.setPreferredPowerConsumption(Criteria.POWER_USAGE_LOW);
LocationProvider lp = LocationProvider.getInstance(c);
Location loc = lp.getLocation(60);
QualifiedCoordinates qc = loc.getQualifiedCoordinates();
f.append("Alt: " + qc.getAltitude());
f.append("Lat: " + qc.getLatitude());
f.append("Long: " + qc.getLongitude());

}
catch (Exception e)
{
f.append("Exception: " + e);
}
}

public void pauseApp()
{
}

public void destroyApp(boolean destroy)
{
}

public void commandAction(Command c, Displayable s)
{
if (c == Exit)
{
destroyApp(true);
notifyDestroyed();
}
}
}
1 楼 wangxc 2010-01-29 你好：我在测试你写的这个程序，在N95上没有返回数据，在W715和K700C上测试报空指针异常，请问一下你写的这个程序有什么注意事项？ 2 楼 ming_fanglin 2010-02-04 首先要确定支持JSR179，其他就没有 应该可以跑