GPSUtil.java

package com.RSen.Commandr.util;

import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.provider.Settings;

/**
 * Created by Ryan on 6/29/2014.
 */
public class GPSUtil {
    public static void turnGPSOn(Context context) {
        String provider = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);

        if (!provider.contains("gps")) { //if gps is disabled
            final Intent poke = new Intent();
            poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
            poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
            poke.setData(Uri.parse("3"));
            context.sendBroadcast(poke);
        }
    }

    public static void turnGPSOff(Context context) {
        String provider = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);

        if (provider.contains("gps")) { //if gps is enabled
            final Intent poke = new Intent();
            poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
            poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
            poke.setData(Uri.parse("3"));
            context.sendBroadcast(poke);
        }
    }

    public static boolean canToggleGPS(Context context) {
        PackageManager pacman = context.getPackageManager();
        PackageInfo pacInfo = null;

        try {
            pacInfo = pacman.getPackageInfo("com.android.settings", PackageManager.GET_RECEIVERS);
        } catch (PackageManager.NameNotFoundException e) {
            return false; //package not found
        }

        if (pacInfo != null) {
            for (ActivityInfo actInfo : pacInfo.receivers) {
                //test if recevier is exported. if so, we can toggle GPS.
                if (actInfo.name.equals("com.android.settings.widget.SettingsAppWidgetProvider") && actInfo.exported) {
                    return true;
                }
            }
        }

        return false; //default
    }
}