【发布时间】:2011-12-04 12:36:16
【问题描述】:
这是我用来获取位置的代码
Criteria criteria = new Criteria();
criteria.setHorizontalAccuracy(Criteria.NO_REQUIREMENT);
criteria.setVerticalAccuracy(Criteria.NO_REQUIREMENT);
criteria.setCostAllowed(true);
criteria.setPreferredPowerConsumption(Criteria.POWER_USAGE_LOW);
try {
LocationProvider lp=LocationProvider.getInstance(criteria);
if(lp !=null)
{
Location loc=null;
loc=lp.getLocation(-1);
if(loc!=null)
add(new EditField(loc.getQualifiedCoordinates().getLatitude()+"\n"+loc.getQualifiedCoordinates().getLongitude(),""));
else
add(new EditField("no location found",""));
}
else
{
add(new EditField("unable to find the location provider", ""));
}
} catch (LocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
此代码在 Blackberry Curve 8520 5.0 版本中使用时运行良好,但当我在 Blackberry Curve 8520 上安装此代码时,它显示一个空白屏幕。
我也试过通过USB调试来调试。结果如下:
[0.0] Starting version4_0
[0.0] Started version4_0(216)
[0.0] Foreground version4_0(216)
[0.0] VM:+GC(f)w=11
[0.0] VM:-GCt=63,b=1,r=0,g=f,w=11
[0.0] VM:+CR
[0.0] VM:-CR=39
[0.0] VM:+GC(f)w=30
[0.0] VM:-GCt=40,b=0,r=0,g=f,w=30
[0.0] VM:+CR
[0.0] VM:-CR=0
[0.0] VM:+GC(f)w=30
[0.0] VM:-GCt=36,b=0,r=0,g=f,w=30
[0.0] VM:+CR
[0.0] VM:-CR=0
[0.0] VM:+GC(f)w=30
[0.0] VM:-GCt=35,b=0,r=0,g=f,w=30
[0.0] VM:+CR
[0.0] VM:-CR=0
谁能告诉我为什么我的 4.6 版本的黑莓不起作用?
【问题讨论】:
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标签: gps blackberry location