IOSD_Counter_App

A counter app made for demonstration in IOSD session. The Increment and Decrement buttons increment and decrement the count respectively and the changes are reflected on the text view.

Installation

Install Android Studio from here.

Enable USB debugging in Android phone

Steps to enable USB debugging can be found here.

Create a new Android Studio project

Follow the steps here.

Run the App

Follow the steps here.

Tip: Choose Empty activity initially to avoid complexity.

Topics covered

• Package name

• Manifest

• Activity

• Layouts - FrameLayout, LinearLayout (horizontal, vertical), RelativeLayout, ConstraintLayout

• Activity Lifecycle

• TextView

• Button

• OnClick event

• findViewById() method