Checking online status and connection type

This is a simple recipe, but one that is very common and will probably be included in every internet application you build: checking online status. While checking online status, we can also check the connection type: WIFI or MOBILE.

Getting ready

Create a new project in Android Studio and call it isOnline. Use the default Phone & Tablet options and select Empty Activity in the Add an Activityto Mobile dialog.

How to do it...

First, we need to add the necessary permissions to access the network. Then, we'll create a simple layout with Button and TextView. To get started, open the Android Manifest and follow these steps:

1. Add the following permissions:

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

2. Open the activity_main.xml file and replace the existing layout with the following:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android...