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James J

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Nov 2, 2016, 7:20:03 AM11/2/16
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Hi Everyone, I am new to MIT App inventor and I need some help, like I say- I've only been using this for a short time so I'm still getting used to it. Basically I need to know how to make an image link to a previous screen, any help would be greatly appreciated.
Many thanks,
James J.

Taifun

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Nov 2, 2016, 10:01:36 AM11/2/16
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use the close scxeen block, see also

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.

see also the following tips and in your case especially #3 

  1. switch screens correctly 
    The recommended method of switching screens in App Inventor

  2. follow these recommendations Using Images with App Inventor

  3. avoid redundancy
    probably it helps to read chapter 19 - 21 in Dave's book http://www.appinventor.org/book2 to get an idea how to do DRY programming with App Inventor https://en.wikipedia.org/wiki/Don%27t_repeat_yourself

  4. reuse your components, see also Building apps with many screens and https://groups.google.com/forum/#!msg/mitappinventortest/YBAfURWv-tY/Ivqx6XcmDgAJ

  5. How to overcome the App Inventor project limit of 10 MB

  6. Backup your project frequently, see also http://twodogapps.com/?page_id=686#BackupWork
Taifun

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


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