I suspect you need to update the Toast (which is a UI widget) on the
UI thread. You do this by creating a Handler and posting a Runnable
with the code you are using to update the Toast. If you don't, you
run the risk of deadlock.
- Mike
On May 7, 2:52 pm, Patricio Echague <patric...@gmail.com> wrote:
> Hi all, my application read info from the GPS provider and shows it on
> the screen.
> The problem is that the locationListener is executed only twice for
> some reason.
> I tried to create another thread to print some other information at
> the same time to verify that the application is still running, and it
> was so. However, the listener that listens to the location change is
> not invoked any more.
>
> To generate the GPS info i'm using DDMS manually and a .GPX file.
>
> Did any of you run into this issue? (I didn't find anything similar in
> the discussion group)
>
> thanks
> Patricio
>
> --------------------------------------
>
> package com.apps.GpsApp;
>
> import java.io.IOException;
>
> import android.app.Activity;
> import android.content.Context;
> import android.location.Location;
> import android.location.LocationListener;
> import android.location.LocationManager;
> import android.location.LocationProvider;
> import android.os.Bundle;
> import android.util.Log;
> import android.widget.TextView;
> import android.widget.Toast;
>
> public class GpsApp extends Activity {
>
> private TextView textView;
>
> /** Called when the activity is first created. */
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
>
> // Set the layout for this activity. You can find it in res/
> layout/location_view.xml
> setContentView(R.layout.location_view);
>
> // The text view for our text view, identified by its ID in
> the XML file.
> textView = (TextView) findViewById(R.id.text);
> textView.setText("Ready to receive my location...");
>
> final LocationManager locationManager = (LocationManager)
> getSystemService(Context.LOCATION_SERVICE);
> locationManager.requestLocationUpdates
> (LocationManager.GPS_PROVIDER, 0, 0, new MyLocationListener
> ());
> }
>
> private class MyLocationListener implements LocationListener {
>
> public void onLocationChanged(Location location) {
> String lat = String.valueOf(location.getLatitude());
> String lon = String.valueOf(location.getLongitude());
> Log.e("GPS", "location changed: lat="+lat+",
> lon="+lon);
>
> textView.append("\nLast location:" + lat + " " + lon);
>
> Toast.makeText(getBaseContext(), "Location changed : Lat: " +
> lat + " Lng: " + lon, Toast.LENGTH_LONG).show();
>
> }
>
> public void onProviderDisabled(String provider) {
> }
>
> public void onProviderEnabled(String provider) {
> }
>
> public void onStatusChanged(String provider, int status,
> Bundle
> extras) {
> }
> }
>
> }
>
> and the xml is:
>
> <?xml version="1.0" encoding="utf-8"?>
> <manifest xmlns:android="http://schemas.android.com/apk/res/android";
> package="com.apps.GpsApp"
> android:versionCode="1"
> android:versionName="1.0">
>
> <uses-permission android:name="android.permission.ACCESS_LOCATION"/
>
> <uses-permission android:name="android.permission.ACCESS_GPS"/
>
> <uses-permission
> android:name="android.permission.ACCESS_COARSE_LOCATION"/>
> <uses-permission
> android:name="android.permission.ACCESS_FINE_LOCATION"/>
> <uses-permission
> android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"/>
> <uses-permission
> android:name="android.permission.ACCESS_MOCK_LOCATION"/>
> <uses-permission
> android:name="android.permission.CONTROL_LOCATION_UPDATES"/>
> <uses-permission android:name="android.permission.INTERNET"/>
>
> <application android:icon="@drawable/icon" android:label="@string/
> app_name">
> <activity android:name=".GpsApp"
> android:label="@string/app_name">
> <intent-filter>
> <action android:name="android.intent.action.MAIN" />
> <category
> android:name="android.intent.category.LAUNCHER" />
> </intent-filter>
> </activity>
> </application>
> <uses-sdk android:minSdkVersion="2" />
> </manifest>
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