为什么此代码无法通过GPS获取位置信息？
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即使启用了GPS并且正确设置了所有位置管理器和侦听器，我也无法获取位置。这是我到目前为止的内容：
public class GpsTest extends Activity {
private TextView text;
private LocationManager manager;
private LocationListener listener;
private Location myLocation;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
text = (TextView)findViewById(R.id.textView1);
try
{
manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
myLocation = manager.getLastKnownLocation(LocationManager.GPS_PROVIDER); //\"gps\"
text.setText((\"Lat: \" + myLocation.getLatitude()
+ \"\\nLLong: \" + myLocation.getLongitude()));
listener = new MyLocationListener();
manager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
0,
1,
listener);
if (manager.isProviderEnabled(LocationManager.GPS_PROVIDER)){
Toast.makeText(this, \"GPS is enable. \", Toast.LENGTH_SHORT).show();
}
else createGpsDisabledAlert();
}catch(Exception ex)
{
createGpsDisabledAlert();
}
}
public void onclicklistener(View v){
try
{
text.setText((\"Lat: \" + myLocation.getLatitude()
+ \"\\nLLong: \" + myLocation.getLongitude()));
}catch(Exception ex)
{
Toast.makeText(this, \"Error while getting locations. \"+ex.toString(), Toast.LENGTH_SHORT).show();
}
}
private void createGpsDisabledAlert(){
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(\"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(\"No Thanks\",
new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int id){
dialog.cancel();
}
});
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) {
// TODO Auto-generated method stub
if (location != null){
text.setText((\"Lat: \" + location.getLatitude()
+ \"\\nLLong: \" + location.getLongitude()));
}
Toast.makeText(GpsTest.this, \"\"+location, Toast.LENGTH_SHORT).show();
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
// TODO Auto-generated method stub
}
}
public void onStatusChanged(String provider, int status,
Bundle extras) {
// TODO Auto-generated method stub
}
}
没有找到相关结果
已邀请:
2 个回复
温拎凯玛
@Override public void run() { mLocationManager = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE); if (mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) { Looper.prepare(); mToast.Make(getContext(),\"GPS\",0); mLocationListener = new MyLocationListener(); mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mLocationListener); Looper.loop(); Looper.myLooper().quit(); } else if (mLocationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)){ Looper.prepare(); mToast.Make(getContext(),\"Triangulacion\",0); mLocationListener = new MyLocationListener(); mLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, mLocationListener); Looper.loop(); Looper.myLooper().quit(); }else{ mToast.Make(context,\"No se encuentra señal se procede a mandar un mensaje normal\",0); Looper.prepare(); handlerNormal.sendEmptyMessage(0); Looper.loop(); Looper.myLooper().quit(); } }嘘崇蔡对