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Android - geo-information not available with LocationManager

I am trying to get the GPS location of my G1 using the following code

In action

MyLocationListener myListener = new MyLocationListener();
LocationManager myManager = (LocationManager)getSystemService(LOCATION_SERVICE);
myManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 0, myListener);

This is the LocationListener class

public class MyLocationListener implements LocationListener {

  private static double latitude;
  private static double longitude;

  @Override
  public void onLocationChanged(Location arg0) {
    latitude = arg0.getLatitude();
    longitude = arg0.getLongitude();
  }

  @Override
  public void onProviderDisabled(String provider) {
  }

  @Override
  public void onProviderEnabled(String provider) {
  }

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

  public static double getLatitude() {
    return latitude;
  }

  public static double getLongitude() {
    return longitude;
  }

}

I waited up to 30 seconds, but none of the listener's methods were called. The GPS icon appears, stays there for a while, but for some reason I am not getting a fix, even outdoors in bright sunlight. I am testing G1 with 1.5 SDK.

Can someone please tell me what happened to the code? Thanks.

Adding a Journal

06-02 18:30:43.143: ERROR/System(52): java.lang.SecurityException
06-02 18:30:43.143: ERROR/System(52):     at android.os.BinderProxy.transact(Native Method)
06-02 18:30:43.143: ERROR/System(52):     at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146)
06-02 18:30:43.143: ERROR/System(52):     at android.os.ServiceManager.addService(ServiceManager.java:72)
06-02 18:30:43.143: ERROR/System(52):     at com.android.server.ServerThread.run(SystemServer.java:155)
06-02 18:30:43.152: ERROR/AndroidRuntime(52): Crash logging skipped, no checkin service

06-02 18:30:43.382: ERROR/SystemServer(52): Failure starting StatusBarService
06-02 18:30:43.382: ERROR/SystemServer(52): java.lang.NullPointerException
06-02 18:30:43.382: ERROR/SystemServer(52):     at com.android.server.status.StatusBarPolicy.updateBluetooth(StatusBarPolicy.java:749)
06-02 18:30:43.382: ERROR/SystemServer(52):     at com.android.server.status.StatusBarPolicy.<init>(StatusBarPolicy.java:282)
06-02 18:30:43.382: ERROR/SystemServer(52):     at com.android.server.status.StatusBarPolicy.installIcons(StatusBarPolicy.java:337)
06-02 18:30:43.382: ERROR/SystemServer(52):     at com.android.server.ServerThread.run(SystemServer.java:186)
06-02 18:30:43.382: ERROR/AndroidRuntime(52): Crash logging skipped, no checkin service
+3
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3 answers

-, , requestLocationUpdates(), - , . AT MOST 2 . , ... .

GPS / (, ), ( , , , ​​GPS). , .

, , , 1.5 SDK, , ( 1.1). , GPS / Cupcake, , .

UPDATE:

, , . , SDK 1.1 1.5

( Main.java):

package org.example.LocationTest;

import android.app.Activity;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

public class Main extends Activity implements LocationListener{
    private LocationManager myManager;
    private TextView tv;


    /********************************************************************** 
     * Activity overrides below 
     **********************************************************************/
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        // get a handle to our TextView so we can write to it later
        tv = (TextView) findViewById(R.id.TextView01);

        // set up the LocationManager
        myManager = (LocationManager) getSystemService(LOCATION_SERVICE);   
    }

    @Override
    protected void onDestroy() {
        stopListening();
        super.onDestroy();
    }

    @Override
    protected void onPause() {
        stopListening();
        super.onPause();
    }

    @Override
    protected void onResume() {
        startListening();
        super.onResume();
    }



    /**********************************************************************
     * helpers for starting/stopping monitoring of GPS changes below 
     **********************************************************************/
    private void startListening() {
        myManager.requestLocationUpdates(
            LocationManager.GPS_PROVIDER, 
            0, 
            0, 
            this
        );
    }

    private void stopListening() {
        if (myManager != null)
            myManager.removeUpdates(this);
    }




    /**********************************************************************
     * LocationListener overrides below 
     **********************************************************************/
    @Override
    public void onLocationChanged(Location location) {
        // we got new location info. lets display it in the textview
        String s = "";
        s += "Time: "        + location.getTime() + "\n";
        s += "\tLatitude:  " + location.getLatitude()  + "\n";
        s += "\tLongitude: " + location.getLongitude() + "\n";
        s += "\tAccuracy:  " + location.getAccuracy()  + "\n";

        tv.setText(s);
    }    

    @Override
    public void onProviderDisabled(String provider) {}    

    @Override
    public void onProviderEnabled(String provider) {}    

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

"" ( main.xml):

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" 
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <TextView 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" 
        android:id="@+id/TextView01"
        android:text="Waiting for location information..." 
    />
</LinearLayout>

AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="org.example.LocationTest"
    android:versionCode="1"
    android:versionName="1.0">
    <application 
        android:icon="@drawable/icon" 
        android:label="@string/app_name">
        <activity 
            android:name=".Main"
            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="3" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
</manifest>

/ . , , - . GPS, - .

.

+13
  • GPS ? , GPS, , .
  • onProviderDisabled() , GPS , .
  • ​​0 2000?
  • , LocationUpdates() ?
  • - ? adb, DDMS DDMS Eclipse.
  • - , , ? , Android, Weather WeatherPlus LocationManager.
+1

Source: https://habr.com/ru/post/1709583/

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