Android locationmanager not calling methods

问题

I'm having trouble with the locationmanager in Android. I have the following class:

package com.flyer;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.Toast;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONObject;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class ContentProvider implements LocationListener {
    private Activity connectedActivity;

    public ContentProvider(Activity connectedActivity) {
        this.connectedActivity = connectedActivity;
        LocationManager locationManager = (LocationManager)connectedActivity.getSystemService(Context.LOCATION_SERVICE);
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 100, 0, this);
    }

    public void onLocationChanged(Location loc)
    {
        MyActivity.rowsData.add(new RowData(0, "Test", "Val: " + Math.random(), 0));
    }

    public void onProviderDisabled(String provider)
    {
        Intent in = new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
        connectedActivity.startActivity(in);
    }

    public void onProviderEnabled(String provider)
    {
        Toast.makeText(connectedActivity.getApplicationContext(),
                "Gps Enabled",
                Toast.LENGTH_SHORT).show();

    }

    public void onStatusChanged(String provider, int status, Bundle extras)
    {
        MyActivity.rowsData.add(new RowData(0, "Test", "Val: "+Math.random(), 0));
    }


}

I call the constructor ContentProvider(this) in my mainactivity. However when I telnet to my emulator and do a geo fix, nothing happens.

I tried setting the content with a breakpoint, it won't reach.

Also I'm developing for Android 2.1.

Any help would be appreciated.

Getting a warning:

10-30 21:10:38.787: WARN/GpsLocationProvider(52): Could not open GPS configuration file /etc/gps.conf

回答1:

Can you publish your manifest XML? Have you added the permissions necessary?

<android:name="android.permission.ACCESS_COARSE_LOCATION" /> 
<android:name="android.permission.ACCESS_FINE_LOCATION" />

Were you getting any exceptions in your logcat trace? I recommend trying this on a real device to rule out config issues with your emulator.

FYI, here's how I turn on debug trace for my app using adb logcat:

adb shell stop
adb shell setprop log.tag.MYTAG DEBUG
adb shell start
adb logcat MYTAG:D *:W > c:\temp\trace.txt

To avoid having to mess around with DEBUG level trace, I suggest you stick with logging at Log.INFO level. In that case you only need the last command.

来源：https://stackoverflow.com/questions/7946035/android-locationmanager-not-calling-methods

标签

android

gps