Need some advice in how to optimize my app

[Guilherme_Soares]

I'm a newbie in app making, and after a lot of backtracking I'm just about to finish my first app.

But I wanted to know how I could've made these procedures in a faster and more efficient way.

There's actually more than 60 "if then" in this one Event Handler

There's also other 60 similar Event Handlers as this two

These two events word together

Thanks for your time!

[ABG]

You seem to have components in pairs, like

• Caixas, Pcts
• Caixas2, Pcts2
• Caixas3, Pcts3

I don't see any place in your blocks where you use lists, or where you reuse a small number of components for a movable section of your lists.

Be aware that you can initialize global lists of components and iterate through them.

You can also pair up components in lists of lists, or in dictionaries, to let you apply dependency rules of color and height pair by pair in a loop.

It makes it easier to debug projects like this if the components follow a naming convention, with component name prefixes like

• har: Horizontal Arrangement
• lbl: Label
• txb:Text Box

Some sample projects for you to read ...

Button List

Move a scroll bar

Here’s an example using your own Canvas as scroll bar. I used a Ball as a cursor, but you could as well have drawn a bar as a thumb instead. Gallery entry: ai2.appinventor.mit.edu/?galleryId=4965345777025024 [blocks] [buttons] [Capture] Color_code_scroller.aia (11.2 KB) [COLUMN] [Designer] [global color_table] [global colorlist] [global listOffset] [global table_text] [global textList] [loadButtonColors] [nudgeBall1] Uploading: when any Button Click.png… Uploading: when btnEnd Click.png… [wh…

Form Filler

TinyDB NameSpace Update via Parallel ListViews Scrollable by Canvas

In response to a recent Help post seeking to create line item increment and decrement buttons for a collection of TinyDB entries, here is a way to do it using parallel ListViews and a Canvas for scrolling. This particular sample uses US state names to receive scores in a separate TinydDBNameSpace tdbStateScores; Sample runs: [Capture] [Capture2] (Unfortunately, this app is too complex for the stock AI2 emulator and Companion, so I had to run the Companion on a GenyMotion emulated Android 4.…

https://groups.google.com/g/mitappinventortest/c/JJ4bMwWg-HU/m/PtuGOUcfDAAJ

Parallel listview canvas scrolling

[Guilherme_Soares]

Thank you very much! I'll be looking into all of it.