大家好,
我写了一支程式去纪录定位座标,
因有考量到GPS无法定位问题,
因此我有使用GPS_Provider与Network_Provider.
程式如下:
Location location=null;
locationMgr = (LocationManager)
(ctx.getSystemService(Context.LOCATION_SERVICE));
isGPSEnabled = locationMgr.isProviderEnabled(LocationManager.GPS_PROVIDER);
isNetworkEnabled =
locationMgr.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (isGPSEnabled || isNetworkEnabled) {
//若GPS有效则以GPS优先
if (isGPSEnabled) {
if (location == null) {
locationMgr.requestLocationUpdates(LocationManager.GPS_PROVIDER,..略);
if (locationMgr != null) {
location = locationMgr.getLastKnownLocation(LocationManager.
GPS_PROVIDER);
}
}
}
//若GPS无效,则以网络定位
if (isNetworkEnabled) {
if(location == null){
locationMgr.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,.略);
if (locationMgr != null) {
location = locationMgr.getLastKnownLocation(LocationManager.
NETWORK_PROVIDER);
}
}
}
}
但我在捷运隧道测试时我的程式却定不到位,
但是Google Map若可以!!
请问有人知道原因吗?
谢谢!