Android Programmatically Update Apps When A New Version Is Available

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In this post, we want to discuss the android code/project for automatically update apps when a new version is published to play store. Before we get started, if you face a problem to generate SHA-1 Key, please go through the following article: Generate SHA-1 Keystore Certificate.

Introduction

If you have apps that are hosted on your server and as time passes you make enhancements, fix bugs, etc. then comes the question of how can I alert all my app users that a newer version is out there and make it easy for them to download? You can email all your users with the link to the new version, that will be very cumbersome. Well, that process needs to be built right into the app you deploy it for the first time. Here is an example of how to do it is outlined below.

How to Work

Create a Web Service which your app can poll whenever the app launches or based on some time limit that can check if there is a new version out there.
This Web service should return the latest version of the apk file that is hosted on the Server along with the URI of the application file that has the new version.
When your app gets the response from the Web Service, it will parse the JSON and check your app version to the latest version that is available on the server.
If your app version is lower than the latest version it will prompt the user to start the download process.
Download Manager will be handled the download process of the new app.
The download manager will notify your app using the Broadcast Receiver when the download is complete.
Upon completion of the latest version of the application file then you can start the activity to install that file.
At this point, the user needs to say OKAY, let’s do it.

Java Servlet Web Service to check New Version – CheckAppVersion.java


package com.techaid24.updater;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.google.gson.JsonObject;

public class CheckAppVersion extends HttpServlet {
 private static final long serialVersionUID = 1L;

 public CheckAppVersion() {
  super();
 }

 protected void doGet(HttpServletRequest request, HttpServletResponse response) 
 throws ServletException, IOException {
  doPost(request,response);
 }

 protected void doPost(HttpServletRequest request, HttpServletResponse response) 
 throws ServletException, IOException {

  PrintWriter out = response.getWriter();
  response.setContentType("text/html");
  
  //send a JSON response with the app Version and file URI
  JsonObject myObj = new JsonObject();
  myObj.addProperty("success", true);
  myObj.addProperty("latestVersion", 2);
  myObj.addProperty("appURI", "http://demo.mysamplecode.com/Servlets_JSP/apps/MyAndroidApp.apk");
  out.println(myObj.toString());
  out.close();
 }
}

package com.techaid24.updater;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.google.gson.JsonObject;

public class CheckAppVersion extends HttpServlet {

private static final long serialVersionUID = 1L;

public CheckAppVersion() {

super();

}

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doPost(request,response);

}

protected void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

PrintWriter out = response.getWriter();

response.setContentType("text/html");

//send a JSON response with the app Version and file URI

JsonObject myObj = new JsonObject();

myObj.addProperty("success", true);

myObj.addProperty("latestVersion", 2);

myObj.addProperty("appURI", "http://demo.mysamplecode.com/Servlets_JSP/apps/MyAndroidApp.apk");

out.println(myObj.toString());

out.close();

}

Application Manifest file – AndroidManifest.xml


<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.techaid24.updater"
    android:versionCode="1"
    android:versionName="2.1.3" >

    <uses-sdk
        android:minSdkVersion="16"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.techaid24.updater.MainActivity"
            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>

</manifest>

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

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

package="com.techaid24.updater"

android:versionCode="1"

android:versionName="2.1.3" >

<uses-sdk

android:minSdkVersion="16"

android:targetSdkVersion="17" />

<application

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<activity

android:name="com.techaid24.updater.MainActivity"

android:label="@string/app_name" >

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

Application Layout file – activity_main.xml


<?xml version="1.0" encoding="UTF-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
 android:layout_height="match_parent" tools:context=".MainActivity"
 android:padding="5dp">

 <TextView android:id="@+id/versionName" android:layout_width="wrap_content"
  android:layout_height="wrap_content" android:layout_alignParentLeft="true"
  android:layout_alignParentTop="true" android:layout_marginTop="16dp"
  android:text="What Version?" android:textAppearance="?android:attr/textAppearanceMedium"
  android:textStyle="bold" />

 <TextView android:id="@+id/textView1" android:layout_width="wrap_content"
  android:layout_height="wrap_content" android:layout_below="@+id/versionName"
  android:layout_marginTop="16dp" android:text="@string/copyright"
  android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>

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

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

xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"

android:layout_height="match_parent" tools:context=".MainActivity"

android:padding="5dp">

<TextView android:id="@+id/versionName" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:layout_alignParentLeft="true"

android:layout_alignParentTop="true" android:layout_marginTop="16dp"

android:text="What Version?" android:textAppearance="?android:attr/textAppearanceMedium"

android:textStyle="bold" />

<TextView android:id="@+id/textView1" android:layout_width="wrap_content"

android:layout_height="wrap_content" android:layout_below="@+id/versionName"

android:layout_marginTop="16dp" android:text="@string/copyright"

android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>

IntentService for making Web Service requests – MyWebService.java


package com.techaid24.updater;
 
import java.io.ByteArrayOutputStream;
import java.io.IOException;
 
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.params.ConnManagerParams;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;

import com.techaid24.updater.MainActivity.MyWebReceiver;
 
import android.app.IntentService;
import android.content.Intent;
import android.util.Log;
 
public class MyWebService  extends IntentService{
 
 private static final String LOG_TAG = "MyWebService";
    public static final String REQUEST_STRING = "myRequest";
    public static final String RESPONSE_STRING = "myResponse";
    public static final String RESPONSE_MESSAGE = "myResponseMessage";
 
    private String URL = null;
    private static final int REGISTRATION_TIMEOUT = 3 * 1000;
    private static final int WAIT_TIMEOUT = 30 * 1000;
 
    public MyWebService() {
        super("MyWebService");
    }
 
    @Override
    protected void onHandleIntent(Intent intent) {
 
        String requestString = intent.getStringExtra(REQUEST_STRING);
        Log.v(LOG_TAG, requestString);
        String responseMessage = "";
        
        try {
 
            URL = requestString;
            HttpClient httpclient = new DefaultHttpClient();
            HttpParams params = httpclient.getParams();
 
            HttpConnectionParams.setConnectionTimeout(params, REGISTRATION_TIMEOUT);
            HttpConnectionParams.setSoTimeout(params, WAIT_TIMEOUT);
            ConnManagerParams.setTimeout(params, WAIT_TIMEOUT);
 
            HttpGet httpGet = new HttpGet(URL);
            HttpResponse response = httpclient.execute(httpGet);
 
            StatusLine statusLine = response.getStatusLine();
            if(statusLine.getStatusCode() == HttpStatus.SC_OK){
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                response.getEntity().writeTo(out);
                out.close();
                responseMessage = out.toString();
            }
 
            else{
                Log.w("HTTP1:",statusLine.getReasonPhrase());
                response.getEntity().getContent().close();
                throw new IOException(statusLine.getReasonPhrase());
            }
 
        } catch (ClientProtocolException e) {
            Log.w("HTTP2:",e );
            responseMessage = e.getMessage();
        } catch (IOException e) {
            Log.w("HTTP3:",e );
            responseMessage = e.getMessage();
        }catch (Exception e) {
            Log.w("HTTP4:",e );
            responseMessage = e.getMessage();
        }
 
 
        Intent broadcastIntent = new Intent();
        broadcastIntent.setAction(MyWebReceiver.PROCESS_RESPONSE);
        broadcastIntent.addCategory(Intent.CATEGORY_DEFAULT);
        broadcastIntent.putExtra(RESPONSE_MESSAGE, responseMessage);
        sendBroadcast(broadcastIntent);
 
    }
 
}

package com.techaid24.updater;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import org.apache.http.HttpResponse;

import org.apache.http.HttpStatus;

import org.apache.http.StatusLine;

import org.apache.http.client.ClientProtocolException;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.conn.params.ConnManagerParams;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.params.HttpConnectionParams;

import org.apache.http.params.HttpParams;

import com.techaid24.updater.MainActivity.MyWebReceiver;

import android.app.IntentService;

import android.content.Intent;

import android.util.Log;

public class MyWebService extends IntentService{

private static final String LOG_TAG = "MyWebService";

public static final String REQUEST_STRING = "myRequest";

public static final String RESPONSE_STRING = "myResponse";

public static final String RESPONSE_MESSAGE = "myResponseMessage";

private String URL = null;

private static final int REGISTRATION_TIMEOUT = 3 * 1000;

private static final int WAIT_TIMEOUT = 30 * 1000;

public MyWebService() {

super("MyWebService");

}

@Override

protected void onHandleIntent(Intent intent) {

String requestString = intent.getStringExtra(REQUEST_STRING);

Log.v(LOG_TAG, requestString);

String responseMessage = "";

try {

URL = requestString;

HttpClient httpclient = new DefaultHttpClient();

HttpParams params = httpclient.getParams();

HttpConnectionParams.setConnectionTimeout(params, REGISTRATION_TIMEOUT);

HttpConnectionParams.setSoTimeout(params, WAIT_TIMEOUT);

ConnManagerParams.setTimeout(params, WAIT_TIMEOUT);

HttpGet httpGet = new HttpGet(URL);

HttpResponse response = httpclient.execute(httpGet);

StatusLine statusLine = response.getStatusLine();

if(statusLine.getStatusCode() == HttpStatus.SC_OK){

ByteArrayOutputStream out = new ByteArrayOutputStream();

response.getEntity().writeTo(out);

out.close();

responseMessage = out.toString();

}

else{

Log.w("HTTP1:",statusLine.getReasonPhrase());

response.getEntity().getContent().close();

throw new IOException(statusLine.getReasonPhrase());

}

} catch (ClientProtocolException e) {

Log.w("HTTP2:",e );

responseMessage = e.getMessage();

} catch (IOException e) {

Log.w("HTTP3:",e );

responseMessage = e.getMessage();

}catch (Exception e) {

Log.w("HTTP4:",e );

responseMessage = e.getMessage();

}

Intent broadcastIntent = new Intent();

broadcastIntent.setAction(MyWebReceiver.PROCESS_RESPONSE);

broadcastIntent.addCategory(Intent.CATEGORY_DEFAULT);

broadcastIntent.putExtra(RESPONSE_MESSAGE, responseMessage);

sendBroadcast(broadcastIntent);

}

Application Activity – MainActivity.java


package com.techaid24.updater;

import org.json.JSONException;
import org.json.JSONObject;

import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.DownloadManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.util.Log;
import android.view.Menu;
import android.widget.TextView;

public class MainActivity extends Activity {

 private static final String LOG_TAG = "AppUpgrade";
 private MyWebReceiver receiver;
 private int versionCode = 0;
 String appURI = "";

 private DownloadManager downloadManager;
 private long downloadReference;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  //Overall information about the contents of a package 
  //This corresponds to all of the information collected from AndroidManifest.xml.
  PackageInfo pInfo = null;
  try {
   pInfo = getPackageManager().getPackageInfo(getPackageName(), 0);
  } 
  catch (NameNotFoundException e) {
   e.printStackTrace();
  }
  //get the app version Name for display
  String version = pInfo.versionName;
  //get the app version Code for checking
  versionCode = pInfo.versionCode;
  //display the current version in a TextView
  TextView versionText = (TextView) findViewById(R.id.versionName);
  versionText.setText(version);

  //Broadcast receiver for our Web Request 
  IntentFilter filter = new IntentFilter(MyWebReceiver.PROCESS_RESPONSE);
  filter.addCategory(Intent.CATEGORY_DEFAULT);
  receiver = new MyWebReceiver();
  registerReceiver(receiver, filter);

  //Broadcast receiver for the download manager
  filter = new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE);
  registerReceiver(downloadReceiver, filter);

  //check of internet is available before making a web service request
  if(isNetworkAvailable(this)){
   Intent msgIntent = new Intent(this, MyWebService.class);
   msgIntent.putExtra(MyWebService.REQUEST_STRING, "http://demo.mysamplecode.com/Servlets_JSP/CheckAppVersion");
   startService(msgIntent);
  }

 }

 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  // Inflate the menu; this adds items to the action bar if it is present.
  getMenuInflater().inflate(R.menu.activity_main, menu);
  return true;
 }

 @Override
 public void onDestroy() {
  //unregister your receivers
  this.unregisterReceiver(receiver);
  this.unregisterReceiver(downloadReceiver);
  super.onDestroy();
 }

 //check for internet connection
 private boolean isNetworkAvailable(Context context) {
  ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
  if (connectivity != null) {
   NetworkInfo[] info = connectivity.getAllNetworkInfo();
   if (info != null) {
    for (int i = 0; i < info.length; i++) {
     Log.v(LOG_TAG,String.valueOf(i));
     if (info[i].getState() == NetworkInfo.State.CONNECTED) {
      Log.v(LOG_TAG, "connected!");
      return true;
     }
    }
   }
  }
  return false;
 }

 //broadcast receiver to get notification when the web request finishes
 public class MyWebReceiver extends BroadcastReceiver{

  public static final String PROCESS_RESPONSE = "com.techaid24.updater.intent.action.PROCESS_RESPONSE";

  @Override
  public void onReceive(Context context, Intent intent) {

   String reponseMessage = intent.getStringExtra(MyWebService.RESPONSE_MESSAGE);
   Log.v(LOG_TAG, reponseMessage);

   //parse the JSON response
   JSONObject responseObj;
   try {
    responseObj = new JSONObject(reponseMessage);
    boolean success = responseObj.getBoolean("success");
    //if the reponse was successful check further
    if(success){
     //get the latest version from the JSON string
     int latestVersion = responseObj.getInt("latestVersion");
     //get the lastest application URI from the JSON string
     appURI = responseObj.getString("appURI");
     //check if we need to upgrade?
     if(latestVersion > versionCode){
      //oh yeah we do need an upgrade, let the user know send an alert message
      AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
      builder.setMessage("There is newer version of this application available, click OK to upgrade now?")
      .setPositiveButton("OK", new DialogInterface.OnClickListener() {
       //if the user agrees to upgrade
       public void onClick(DialogInterface dialog, int id) {
        //start downloading the file using the download manager
        downloadManager = (DownloadManager)getSystemService(DOWNLOAD_SERVICE);
        Uri Download_Uri = Uri.parse(appURI);
        DownloadManager.Request request = new DownloadManager.Request(Download_Uri);
        request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI);
        request.setAllowedOverRoaming(false);
        request.setTitle("My Andorid App Download");
        request.setDestinationInExternalFilesDir(MainActivity.this,Environment.DIRECTORY_DOWNLOADS,"MyAndroidApp.apk");
        downloadReference = downloadManager.enqueue(request);
       }
      })
      .setNegativeButton("Remind Later", new DialogInterface.OnClickListener() {
       public void onClick(DialogInterface dialog, int id) {
        // User cancelled the dialog
       }
      });
      //show the alert message
      builder.create().show();
     }

    }
   } catch (JSONException e) {
    e.printStackTrace();
   }

  }

 }

 //broadcast receiver to get notification about ongoing downloads
 private BroadcastReceiver downloadReceiver = new BroadcastReceiver() {

  @Override
  public void onReceive(Context context, Intent intent) {

   //check if the broadcast message is for our Enqueued download
   long referenceId = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1);
   if(downloadReference == referenceId){

    Log.v(LOG_TAG, "Downloading of the new app version complete");
    //start the installation of the latest version
    Intent installIntent = new Intent(Intent.ACTION_VIEW);
    installIntent.setDataAndType(downloadManager.getUriForDownloadedFile(downloadReference), 
        "application/vnd.android.package-archive");
    installIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    startActivity(installIntent); 
    
   }
  }
 }; 

}

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package com.techaid24.updater;

import org.json.JSONException;

import org.json.JSONObject;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

import android.net.Uri;

import android.os.Bundle;

import android.os.Environment;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.DownloadManager;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.IntentFilter;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager.NameNotFoundException;

import android.util.Log;

import android.view.Menu;

import android.widget.TextView;

public class MainActivity extends Activity {

private static final String LOG_TAG = "AppUpgrade";

private MyWebReceiver receiver;

private int versionCode = 0;

String appURI = "";

private DownloadManager downloadManager;

private long downloadReference;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

//Overall information about the contents of a package

//This corresponds to all of the information collected from AndroidManifest.xml.

PackageInfo pInfo = null;

try {

pInfo = getPackageManager().getPackageInfo(getPackageName(), 0);

}

catch (NameNotFoundException e) {

e.printStackTrace();

}

//get the app version Name for display

String version = pInfo.versionName;

//get the app version Code for checking

versionCode = pInfo.versionCode;

//display the current version in a TextView

TextView versionText = (TextView) findViewById(R.id.versionName);

versionText.setText(version);

//Broadcast receiver for our Web Request

IntentFilter filter = new IntentFilter(MyWebReceiver.PROCESS_RESPONSE);

filter.addCategory(Intent.CATEGORY_DEFAULT);

receiver = new MyWebReceiver();

registerReceiver(receiver, filter);

//Broadcast receiver for the download manager

filter = new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE);

registerReceiver(downloadReceiver, filter);

//check of internet is available before making a web service request

if(isNetworkAvailable(this)){

Intent msgIntent = new Intent(this, MyWebService.class);

msgIntent.putExtra(MyWebService.REQUEST_STRING, "http://demo.mysamplecode.com/Servlets_JSP/CheckAppVersion");

startService(msgIntent);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.activity_main, menu);

return true;

}

@Override

public void onDestroy() {

//unregister your receivers

this.unregisterReceiver(receiver);

this.unregisterReceiver(downloadReceiver);

super.onDestroy();

}

//check for internet connection

private boolean isNetworkAvailable(Context context) {

ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

if (connectivity != null) {

NetworkInfo[] info = connectivity.getAllNetworkInfo();

if (info != null) {

for (int i = 0; i < info.length; i++) {

Log.v(LOG_TAG,String.valueOf(i));

if (info[i].getState() == NetworkInfo.State.CONNECTED) {

Log.v(LOG_TAG, "connected!");

return true;

}

return false;

}

//broadcast receiver to get notification when the web request finishes

public class MyWebReceiver extends BroadcastReceiver{

public static final String PROCESS_RESPONSE = "com.techaid24.updater.intent.action.PROCESS_RESPONSE";

@Override

public void onReceive(Context context, Intent intent) {

String reponseMessage = intent.getStringExtra(MyWebService.RESPONSE_MESSAGE);

Log.v(LOG_TAG, reponseMessage);

//parse the JSON response

JSONObject responseObj;

try {

responseObj = new JSONObject(reponseMessage);

boolean success = responseObj.getBoolean("success");

//if the reponse was successful check further

if(success){

//get the latest version from the JSON string

int latestVersion = responseObj.getInt("latestVersion");

//get the lastest application URI from the JSON string

appURI = responseObj.getString("appURI");

//check if we need to upgrade?

if(latestVersion > versionCode){

//oh yeah we do need an upgrade, let the user know send an alert message

AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);

builder.setMessage("There is newer version of this application available, click OK to upgrade now?")

.setPositiveButton("OK", new DialogInterface.OnClickListener() {

//if the user agrees to upgrade

public void onClick(DialogInterface dialog, int id) {

//start downloading the file using the download manager

downloadManager = (DownloadManager)getSystemService(DOWNLOAD_SERVICE);

Uri Download_Uri = Uri.parse(appURI);

DownloadManager.Request request = new DownloadManager.Request(Download_Uri);

request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI);

request.setAllowedOverRoaming(false);

request.setTitle("My Andorid App Download");

request.setDestinationInExternalFilesDir(MainActivity.this,Environment.DIRECTORY_DOWNLOADS,"MyAndroidApp.apk");

downloadReference = downloadManager.enqueue(request);

}

})

.setNegativeButton("Remind Later", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int id) {

// User cancelled the dialog

}

});

//show the alert message

builder.create().show();

}

} catch (JSONException e) {

e.printStackTrace();

}

//broadcast receiver to get notification about ongoing downloads

private BroadcastReceiver downloadReceiver = new BroadcastReceiver() {

@Override

public void onReceive(Context context, Intent intent) {

//check if the broadcast message is for our Enqueued download

long referenceId = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1);

if(downloadReference == referenceId){

Log.v(LOG_TAG, "Downloading of the new app version complete");

//start the installation of the latest version

Intent installIntent = new Intent(Intent.ACTION_VIEW);

installIntent.setDataAndType(downloadManager.getUriForDownloadedFile(downloadReference),

"application/vnd.android.package-archive");

installIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

startActivity(installIntent);

}

};

}

We think you can complete the process to update apps automatically after a new version released. If you face any problem, you can directly contact us.

android code/project for automatically update apps

The article was published on March 23, 2018 @ 1:30 AM

2 Comments

Vivid Leds says:

March 26, 2018 at 10:07 PM

What’s up, of course this piece of writing is actually good and I
have learned lot of things from it regarding blogging.
thanks.

Yupina Ana Stasiya says:

March 26, 2018 at 9:20 PM

I am completely agree with you.. This is very nice post for android…