Select Page

List Blocks On App Inventor

List is a necessity in almost every app regardless of what programming language you use. This is the easiest way to create and manipulate a set of values/items/elements in an ordered fashion. Please go over the reference before we start. In this tutorial, we will...

For Each With Number On App Inventor

For Each with number is used for doing something a number of times for a given range. There are four slots/arguments in that block which are given. First by default there’s a number slot which is the counter telling you the current iteration/loop number. You can...

For Each Block On App Inventor

For each is pretty simple. You provide a list to loop through and there’s a local variable named “item” given to you that holds the value of an item. Note that you can change the name “item” to anything you like. Remember...

Animations & Effects In App Inventor

When you see a bird flapping in a game or an alien being exploded in pieces, how do you think it’s done? Well, usually it’s nothing but a set of images and changing of those images in a timely manner. In App Inventor, we can use a Canvas, some ImageSprite...

Advanced Sprites Of App Inventor

If you have gone through Advanced Components tutorial, you already know that now we can manipulate a component via reference. Here we will create a simple app with one canvas and 10 image sprites. Our goal is when an image sprite is tapped/touched, we will change its...