獲取致命異常而的LocationManager isrequestLocationUpdates

Question

我在下面的行

lm.requestLocationUpdates（LocationManager.NETWORK_PROVIDER，0，0，LL）越來越嚴重異常;

完全錯誤日誌::

06-02 17:07:45.953: D/AndroidRuntime(8179): Shutting down VM 
06-02 17:07:45.953: W/dalvikvm(8179): threadid=1: thread exiting with uncaught exception (group=0x40018578) 
06-02 17:07:46.031: E/AndroidRuntime(8179): FATAL EXCEPTION: main 
06-02 17:07:46.031: E/AndroidRuntime(8179): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.nirbhaya/com.example.nirbhaya.CurrentDetails}: java.lang.SecurityException: Provider network requires ACCESS_FINE_LOCATION or ACCESS_COARSE_LOCATION permission 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.app.ActivityThread.access$1500(ActivityThread.java:117) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.os.Handler.dispatchMessage(Handler.java:99) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.os.Looper.loop(Looper.java:130) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.app.ActivityThread.main(ActivityThread.java:3687) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at java.lang.reflect.Method.invokeNative(Native Method) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at java.lang.reflect.Method.invoke(Method.java:507) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at dalvik.system.NativeStart.main(Native Method) 
06-02 17:07:46.031: E/AndroidRuntime(8179): Caused by: java.lang.SecurityException: Provider network requires ACCESS_FINE_LOCATION or ACCESS_COARSE_LOCATION permission 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.os.Parcel.readException(Parcel.java:1322) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.os.Parcel.readException(Parcel.java:1276) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.location.ILocationManager$Stub$Proxy.requestLocationUpdates(ILocationManager.java:646) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.location.LocationManager._requestLocationUpdates(LocationManager.java:582) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.location.LocationManager.requestLocationUpdates(LocationManager.java:446) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at com.example.nirbhaya.CurrentDetails.onCreate(CurrentDetails.java:65) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615) 
06-02 17:07:46.031: E/AndroidRuntime(8179):  ... 11 more 

和CurrentDetails.java的完整代碼： 包com.example.nirbhaya;

public class CurrentDetails extends Activity implements OnClickListener{ 

    Button ok = null; 
    EditText loc = null,comeby = null,name = null; 
    TimePicker setTime; 
    String location,Name,comingby,destTime; 
    boolean GPS,flag; 
    String cityName=null; 
    String subCityName = null; 
    String SubThorugh = null; 
    String Through = null; 
    Intent i; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.currentdetails); 

     ok = (Button)findViewById(R.id.bOK); 
     loc = (EditText)findViewById(R.id.etPreLoc); 
     comeby = (EditText)findViewById(R.id.etComing); 
     name = (EditText)findViewById(R.id.etDriver); 
     setTime = (TimePicker)findViewById(R.id.timePicker1); 

     i = getIntent(); 
     GPS = i.getBooleanExtra("GPSneed", false); 

     ok.setOnClickListener(this); 
     if(GPS) 
     { 
      flag = displayGpsStatus(); 
      if (flag) 
      { 
         LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 
         LocationListener ll = new mylocationlistener(); 
         lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, ll); 
      } 
      else 
      { 
       alertbox("Gps Status!!", "Your GPS is: OFF"); 
      } 
     } 

     String g = String.valueOf(GPS); 
     Toast.makeText(getApplicationContext(), "GPS is: "+g , Toast.LENGTH_LONG).show(); 
    } 
    @Override 

private class mylocationlistener implements LocationListener 
{ 
    @Override 
    public void onLocationChanged(Location location) 
    {  
     if (location != null) 
     { 
      Log.d("LOCATION CHANGED", location.getLatitude() + ""); 
      Log.d("LOCATION CHANGED", location.getLongitude() + ""); 
      Geocoder gcd = new Geocoder(getBaseContext(), Locale.getDefault());     
      List<Address> addresses; 
      try 
      { 
       addresses = gcd.getFromLocation(location.getLatitude(), location.getLongitude(), 1); 
       if (addresses.size() > 0) 
       System.out.println(addresses.get(0).getLocality()); 
       cityName=addresses.get(0).getLocality(); 
       subCityName = addresses.get(0).getSubLocality(); 
       SubThorugh = addresses.get(0).getSubThoroughfare(); 
       Through = addresses.get(0).getThoroughfare(); 
      } catch (IOException e) 
      {     
       e.printStackTrace(); 
      } 


     } 
    } 
@Override 
public void onProviderDisabled(String provider) { 

}  
@Override 
public void onProviderEnabled(String provider) { 

} 
@Override 
public void onStatusChanged(String provider, int status, Bundle extras) { 

} 
} 

Answer 1

打開AndroidManifest.xml文件，並添加所需的權限

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />