當我在我的android手機上測試此代碼時,當前位置不顯示。我應該配置我的手機還是將新代碼增加到代碼中以允許它正確運行在我的手機上。一個提示將不勝感激。代碼如下在Android手機上測試GPS當前位置
public class GetLocation extends Activity {
TextView tv;
double latitude,longitude,accuracy;
private LocationManager lm;
private LocationListener lo;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tv = (TextView)this.findViewById(R.id.txtLocation);
lm=(LocationManager) getSystemService(Context.LOCATION_SERVICE);
lo = new mylocationlistener();
tv.setText("waiting for location");
if (!lm.isProviderEnabled(LocationManager.GPS_PROVIDER)){
createGpsDisabledAlert();
}
}
//dialog to check if gps enabled or not
private void createGpsDisabledAlert() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Your GPS is disabled! Would you like to enable it?")
.setCancelable(false)
.setPositiveButton("Enable GPS",
new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int id){
showGpsOptions();
}
});
builder.setNegativeButton("Do nothing",
new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int id){
dialog.cancel();
}
}); //close negative builder
AlertDialog alert = builder.create();
alert.show();
}
private void showGpsOptions(){
Intent gpsOptionsIntent = new Intent(
android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(gpsOptionsIntent);
}
private class mylocationlistener implements LocationListener {
public void onLocationChanged(Location location) {
if (location !=null){
longitude = location.getLongitude();
latitude = location.getLatitude();
accuracy = location.getAccuracy();
/*
Log.d("LOCATION CHANGED", latitude + "");
Log.d("LOCATION CHANGED", longitude + "");
*/ String str = "\n CurrentLocation: "+
"\n Latitude: "+ latitude +
"\n Longitude: " + longitude +
"\n Accuracy: " + accuracy;
Toast.makeText(GetLocation.this,str,Toast.LENGTH_LONG).show();
tv.append(str);
}
}
public void onProviderDisabled(String provider) {
Toast.makeText(GetLocation.this,"Error onProviderDisabled",Toast.LENGTH_LONG).show();
}
public void onProviderEnabled(String provider) {
Toast.makeText(GetLocation.this,"onProviderEnabled",Toast.LENGTH_LONG).show();
}
public void onStatusChanged(String provider, int status, Bundle extras) {
Toast.makeText(GetLocation.this,"onStatusChanged",Toast.LENGTH_LONG).show();
}
}
@Override
public void onPause() {
// TODO Auto-generated method stub
super.onPause();
}
public void onResume(){
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, lo);
super.onResume();
}
}
你有任何異常? – Praveenkumar 2012-02-24 07:09:14
沒有一切工作正常,但在烤麪包時不顯示座標 – 2012-02-24 07:12:25
因此,狀態欄中出現「衛星」圖標,您需要等待很長時間才能確定位置,對不對? – 2012-02-24 07:26:36