What is the pixel size of a entire background in the back of mit

[Randomly_Mythic]

I just want to know about the size the mit uses for the background

[ChrisWard]

Hi

For the background of what exactly?

[Randomly_Mythic]

The background of screen 1 resizable as a entire chromebook screen

[ChrisWard]

OK

So I think you are laying out your App interface and the App is intended to run on Chrome Books right?

In your App Inventor project I suggest you select the 'Monitor' size, Theme Classic, and decide now if the App will be portrait or landscape.

Pixels should not be of particular interest - always design your interface in %. That way it should fit the majority of similar devices.

ProfessorCad: Tips & Tricks GUI Layout and Component Naming
ProfessorCad: Tips & Tricks Images

[TIMAI2]

Use the Screen1.Width and Screen1.Height blocks to get the size of the screen. You may need to use a clock timer (250ms) to give AppInventor time to get the properties.

[Randomly_Mythic]

Thank you I know figure it out

[Randomly_Mythic]

But I want to know how I can make people put there download image files to the background of screen 1

[TIMAI2]

and

[Randomly_Mythic]

I mean like in the app not the settings of the backgroundImage

[Taifun]

To set the background image of your app you use the blocks which have been provided by @TIMAI2 earlier

Let me suggest you to do some tutorials to learn the basics...

A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook App Inventor 2 Book: Create Your Own Android Apps ... the links are at the bottom of the Web page. The book 'teaches' users how to program with AI2 blocks.
There is a free programming course here Course In A Box and the aia files for the projects in the book are here: App Inventor 2 Book: Create Your Own Android Apps
How to do a lot of basic things with App Inventor are described here: How do you...? .

Also do the tutorials Our Tutorials! to learn the basics of App Inventor, then try something and follow the Top 5 Tips: How to learn App Inventor

Taifun

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Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.

[Randomly_Mythic]

???

I am looking for a way for the app to show a button that will pop the user at his file and pick a picture as the background

[Taifun]

Try the image picker component together with

@Taifun

the blocks which have been provided by @TIMAI2 earlier

Taifun

[TIMAI2]

You might find this useful:

Background picture lock ratio

Here also a reworked universal solution, which has dispensed with the clock and uses a webviewer instead (javascript to calculate the aspect ratio of the image). This should now fit any image, with the correct aspect ratio, centred on the screen, to the screen1 image background, as you will see, no cropping, and no extensions The html file should be in the same directory as the images used. greenCircleUniversalDemo.aia (79.2 KB)

BLOCKS

<a class="lightbox" href="https:/…

(Read all 104 posts if you want the "big picture" for a complicated subject)

[Randomly_Mythic]

I have a question so I have made what I wanted but there is one issue in my mind is that is there another way because I don't want it to go to Google Photos but instead get it from your files

[TIMAI2]

@Randomly_Mythic

get it from your files

Where exactly are "your files" ?

[Randomly_Mythic]

Like in my folder like where your downloads go

[TIMAI2]

You mean the Download folder on your Android device ?

/storage/emulated/0/Download

[Randomly_Mythic]

Yes exactly like that

[TIMAI2]

Then what is the problem ?

[Randomly_Mythic]

I want it to go in this folder have on my Chromebook device