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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...