How I can change the image when click the button?

[Moosa Alismaili]

. Hi dear I'm beginning in MIT app Inventor I do switch button in this button image  

I want when click to button change the image

I hope clear to you

[TimAI2]

Just one other image ?

Or do you want to pick from a list ?

Or do you want the image to change to a different image each time you click ?

[Moosa Alismaili]

Yes
I want the image to change to a different image
When click the button?
I mean two image one as default and the other when click?

[TimAI2]

Like so:

[Moosa Alismaili]

From where get if_than_else

[Moosa Alismaili]

[Taifun]

From where get if_than_else

see the documentation http://appinventor.mit.edu/explore/ai2/support/blocks/control#if

A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook   http://www.appinventor.org/book2 ... 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 http://www.appinventor.org/content/CourseInABox/Intro  and the aia files for the projects in the book are here:  http://www.appinventor.org/bookFiles  

How to do a lot of basic things with App Inventor are described here:  http://www.appinventor.org/content/howDoYou/eventHandling  .

Also do the tutorials http://appinventor.mit.edu/explore/ai2/tutorials.html to learn the basics of App Inventor, then try something and follow the

 Top 5 Tips: How to learn  App Inventor

You will not find a tutorial, which does exactly what you are looking for. But doing the tutorials (not only reading a little bit) help you to understand, how things are working. This is important and this is the first step to do.

Taifun

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Trying to push the limits of App Inventor! Snippets and Tutorials from Pura Vida Apps by  Taifun.         

[Moosa Alismaili]

Thanks a lot

Now  How I can make the button switch one time only

I mean if click again nothing happen 

[Moosa Alismaili]

I solve this by this way

Now How I can refresh the app without close and open the application again ?

 when I do like the attach file if i need use the switch again most be close and open I want add a new button when  press refresh app 

[Moosa Alismaili]

I mean How I can add refresh Button ?
No need to close the application and open again

[TimAI2]

This might work for you. Use a true/false variable, and a long click event on the button to save having to introduce another button component to reset