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 option and select Empty Activity when prompted for Activity Type.

How to do it...

First, we need to add the necessary permissions to access the network. Then, we'll create a simple layout with a 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 TextView with the following views:

   <TextView
       android:id="@+id/textView"
       android:layout_width=...