چگونه سرویس مکان را در اندروید فعال کنیم

GooglePlayServicesClient.ConnectionCallbacks
GooglePlayServicesClient.OnConnectionFailedListener

package com.example.tutorialspoint7.myapplication;

 

import android.Manifest;

import android.app.Activity;

import android.os.Bundle;

import android.support.v4.app.ActivityCompat;

import android.test.mock.MockPackageManager;

import android.view.View;

import android.widget.Button;

import android.widget.Toast;

 

public class MainActivity extends Activity {

 

Button btnShowLocation;

private static final int REQUEST_CODE_PERMISSION = 2;

String mPermission = Manifest.permission.ACCESS_FINE_LOCATION;

 

// GPSTracker class

GPSTracker gps;

 

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

 

try {

if (ActivityCompat.checkSelfPermission(this, mPermission)

!= MockPackageManager.PERMISSION_GRANTED) {

 

ActivityCompat.requestPermissions(this, new String[]{mPermission},

REQUEST_CODE_PERMISSION);

 

// If any permission above not allowed by user, this condition will

execute every time, else your else part will work

}

} catch (Exception e) {

e.printStackTrace();

}

 

btnShowLocation = (Button) findViewById(R.id.button);

 

// show location button click event

btnShowLocation.setOnClickListener(new View.OnClickListener() {

 

@Override

public void onClick(View arg0) {

// create class object

gps = new GPSTracker(MainActivity.this);

 

// check if GPS enabled

if(gps.canGetLocation()){

 

double latitude = gps.getLatitude();

double longitude = gps.getLongitude();

 

// \n is for new line

Toast.makeText(getApplicationContext(), "Your Location is - \nLat: "

+ latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();

}else{

// can't get location

// GPS or Network is not enabled

// Ask user to enable GPS/network in settings

gps.showSettingsAlert();

}

 

}

});

}

}

package com.example.tutorialspoint7.myapplication;

 

import android.app.AlertDialog;

import android.app.Service;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.os.Bundle;

import android.os.IBinder;

import android.provider.Settings;

import android.util.Log;

 

public class GPSTracker extends Service implements LocationListener {

 

private final Context mContext;

 

// flag for GPS status

boolean isGPSEnabled = false;

 

// flag for network status

boolean isNetworkEnabled = false;

 

// flag for GPS status

boolean canGetLocation = false;

 

Location location; // location

double latitude; // latitude

double longitude; // longitude

 

// The minimum distance to change Updates in meters

private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters

 

// The minimum time between updates in milliseconds

private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute

 

// Declaring a Location Manager

protected LocationManager locationManager;

 

public GPSTracker(Context context) {

this.mContext = context;

getLocation();

}

 

public Location getLocation() {

try {

locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE);

 

// getting GPS status

isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);

 

// getting network status

isNetworkEnabled = locationManager

.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

 

if (!isGPSEnabled && !isNetworkEnabled) {

// no network provider is enabled

} else {

this.canGetLocation = true;

// First get location from Network Provider

if (isNetworkEnabled) {

locationManager.requestLocationUpdates(

LocationManager.NETWORK_PROVIDER,

MIN_TIME_BW_UPDATES,

MIN_DISTANCE_CHANGE_FOR_UPDATES, this);

 

Log.d("Network", "Network");

if (locationManager != null) {

location = locationManager

.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

 

if (location != null) {

latitude = location.getLatitude();

longitude = location.getLongitude();

}

}

}

 

// if GPS Enabled get lat/long using GPS Services

if (isGPSEnabled) {

if (location == null) {

locationManager.requestLocationUpdates(

LocationManager.GPS_PROVIDER,

MIN_TIME_BW_UPDATES,

MIN_DISTANCE_CHANGE_FOR_UPDATES, this);

 

Log.d("GPS Enabled", "GPS Enabled");

if (locationManager != null) {

location = locationManager

.getLastKnownLocation(LocationManager.GPS_PROVIDER);

 

if (location != null) {

latitude = location.getLatitude();

longitude = location.getLongitude();

}

}

}

}

}

 

} catch (Exception e) {

e.printStackTrace();

}

 

return location;

}

 

/**

* Stop using GPS listener

* Calling this function will stop using GPS in your app

* */

 

public void stopUsingGPS(){

if(locationManager != null){

locationManager.removeUpdates(GPSTracker.this);

}

}

 

/**

* Function to get latitude

* */

 

public double getLatitude(){

if(location != null){

latitude = location.getLatitude();

}

 

// return latitude

return latitude;

}

 

/**

* Function to get longitude

* */

 

public double getLongitude(){

if(location != null){

longitude = location.getLongitude();

}

 

// return longitude

return longitude;

}

 

/**

* Function to check GPS/wifi enabled

* @return boolean

* */

 

public boolean canGetLocation() {

return this.canGetLocation;

}

 

/**

* Function to show settings alert dialog

* On pressing Settings button will lauch Settings Options

* */

 

public void showSettingsAlert(){

AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);

 

// Setting Dialog Title

alertDialog.setTitle("GPS is settings");

 

// Setting Dialog Message

alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");

 

// On pressing Settings button

alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog,int which) {

Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);

mContext.startActivity(intent);

}

});

 

// on pressing cancel button

alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

dialog.cancel();

}

});

 

// Showing Alert Message

alertDialog.show();

}

 

@Override

public void onLocationChanged(Location location) {

}

 

@Override

public void onProviderDisabled(String provider) {

}

 

@Override

public void onProviderEnabled(String provider) {

}

 

@Override

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

}

 

@Override

public IBinder onBind(Intent arg0) {

return null;

}

}

<?xml version = "1.0" encoding = "utf-8"?>

<LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"

android:layout_width = "fill_parent"

android:layout_height = "fill_parent"

android:orientation = "vertical" >

 

 

<Button

android:id = "@+id/button"

android:layout_width = "fill_parent"

android:layout_height = "wrap_content"

android:text = "getlocation"/>

 

</LinearLayout>

کد های زیر کدهای فایل res/values/strings.xml برای تعریف دو ثابت جدید میباشد:

<?xml version = "1.0" encoding = "utf-8"?>

<resources>

<string name = "app_name">Tutorialspoint</string>

</resources>

کد های زیر کدهای پیش فرش فایل AndroidManifest.xml میباشند.

<?xml version = "1.0" encoding = "utf-8"?>

<manifest xmlns:android = "http://schemas.android.com/apk/res/android"

package = "com.example.tutorialspoint7.myapplication">

<uses-permission android:name = "android.permission.ACCESS_FINE_LOCATION" />

<uses-permission android:name = "android.permission.INTERNET" />

<application

android:allowBackup = "true"

android:icon = "@mipmap/ic_launcher"

android:label = "@string/app_name"

android:supportsRtl = "true"

android:theme = "@style/AppTheme">

 

<activity android:name = ".MainActivity">

<intent-filter>

<action android:name = "android.intent.action.MAIN" />

 

<category android:name = "android.intent.category.LAUNCHER" />

</intent-filter>

</activity>

</application>

 

</manifest>