如何知道BlackBerry設備是否具有GPS？

Question

我想知道設備是否有GPS，我怎麼能爲v5.0以下的設備做到這一點？

Answer 1

查看Location Provider的文檔。在不同情況下在幾個設備上試用此代碼，我認爲它應該可以工作：

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 
} 

Answer 2

你必須check if Java ME's JSR 179 is available。