查看 位置提供者.在不同情况下的一些设备上尝试此代码，我认为它应该可以工作:

Have a look at docs for Location Provider. Try this code on a few devices in different situations and I think it should work:

try {
    LocationProvider lp = LocationProvider.getInstance(null);
    if (lp == null) {
        //Device doesn't currently have GPS enabled
    } else {
        //Device has GPS enabled
    }
} catch (LocationException le) {
     //Device's GPS is currently permanently disabled
}