Develop a Free VPN App in Java using Android Studio

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Free VPN App For Android, it is really hard to find an article describing all the things that need in VPN development. So I have created an app in Java, using Android Studio.

In this, we will be working on the latest version of the Android Studio, and Gradle. I used Android Studio 3.5, and for Gradle 5.6.1.

The app is migrated to AndroidX and supports 64 Bit. It can calculate the daily usage of data, the connected time, check connection speed, change the interface into night-mode, add multiple servers, remote config the app, added visual effects to the transitions,

and integrated Lottie

VPN App Source Code | Free Source Code |

How To Create Free VPN Appin Android Studio

Free VPN App Free VPN App Free VPN App Free VPN App Free VPN AppFree VPN App

1. Clone the project

To clone the project, follow the steps.

Step 1: Select Git from Check out project from Version Control

How To Create Free VPN Appin Android Studio

 Build the project using the latest Gradle version

Develop a Free VPN App in Java using Android Studio

Step 5: After finish, the Building project. Change the following lines to add new servers

Develop a Free VPN App in Java using Android Studio

Now you can run the project on a simulator or the device. But still, the app will not connect to servers, because we haven’t configured it.

2. Configure appdetails.json

{
"ads":"true",
"update":[{
"version":"2.8.1600",
"title":"This app is now Open Source",
"description":"The App is available at github.com/gayankuruppu/android-vpn-client-ics-openvpn",
"size":"https://git.io/JeY69"
}],
"blocked":[
{"id":0, "app":"com.android.game"},
{"id":1, "app":"com.utorrent.client"},
{"id":2, "app":"com.torrent.client"},
{"id":3, "app":"com.tor.client"},
{"id":4, "app":"com.insta.client"},
{"id":5, "app":"com.facebook.client"},
{"id":6, "app":"com.get.client"}
],
"free":[
{"id":0, "file":0, "city":"Essen","country":"Germany","image":"germany","ip":"51.68.191.75","active":"true","signal":"a"},
{"id":1, "file":0, "city":"Hamburg","country":"Germany","image":"germany","ip":"51.68.191.75","active":"true","signal":"b"},
{"id":2, "file":1, "city":"Los Angeles CA","country":"United States","image":"unitedstates","ip":"205.185.119.100","active":"true","signal":"c"}
]
}

The appdetails.json file has four main parts.

  1. The value ads is a boolean value, you can choose true or false. If the value is true, the app will show ads when the session starts. Otherwise, ads will not show if the value is false.
  2. The array update has three values. version is a String value which is the latest version of the app. When the session starts the app check if the version value is equal to the version of the app. If the values do not match with each other the Update View will show. The values titledescription, and size are the values display in the Update View.
  3. The array blocked has JSON objects with values id and package name. You can add apps such as Torrent to avoid the peer to peer file sharing which often misuse by downloading digital media.
  4. The array free has values of the server names. The value city displays the server name and the value image is the name of the flag. The value signal is the value of the strength of the signal.

 

3. Configure filedetails.json

{
"ovpn_file":[
{"id":0,"file":"client
dev tun
proto udp
...
d4ec4105a39c814bd980c9c0e0b8efb4
-----END OpenVPN Static key V1-----
</tls-auth>"},
{"id":1,"file":""}]
}

 

4. Run the app

That is all. Now to can change the app UI and deploy the app. Remove the Google Services JSON file before deploying

Free VPN App For Android, it is really hard to find an article describing all the things that need in VPN development. So I have created an app in Java, using Android Studio.

In this, we will be working on the latest version of the Android Studio, and Gradle. I used Android Studio 3.5, and for Gradle 5.6.1.

The app is migrated to AndroidX and supports 64 Bit. It can calculate the daily usage of data, the connected time, check connection speed, change the interface into night-mode, add multiple servers, remote config the app, added visual effects to the transitions,

and integrated Lottie

VPN App Source Code | Free Source Code |

How To Create Free VPN Appin Android Studio

In this, we will be working on the latest version of the Android Studio, and Gradle. I used Android Studio 3.5, and for Gradle 5.6.1.

The app is migrated to AndroidX and supports 64 Bit. It can calculate the daily usage of data, the connected time, check connection speed, change the interface into night-mode, add multiple servers, remote config the app, added visual effects to the transitions,

and integrated Lottie

VPN App Source Code | Free Source Code |

How To Create Free VPN Appin Android Studio

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