Tutorial 1 - Button with notification APP INVENTOR first android app

Create new project in APP INVENTOR

Drag the button on the central screen

And drag the Notifier object to the central screen

https://imgdb.net/images/4124.jpg

Then now click on "Blocks"
In the Blocks table, click on "Button1"

https://imgdb.net/images/4125.jpg

Drag the first block "when Button1 click do" on the main screen as in picture.

Then go to the "Blocks" table on the left and click on Notifier

Drag the block in purple "call Notifier1 Show Alert notice" inside the block of the button as in the picture

https://imgdb.net/images/4127.jpg

Now we must enter what we want to appear when the button is pressed.

in the table on the left "Blocks" click on "Text" drag the first block and connect it to "notice" as in the picture

https://imgdb.net/images/4128.jpg

Insert in the block Text the text that will appear when the button is pressed, for example I wrote Button Pressed

https://imgdb.net/images/4129.jpg

Now if we want to test the application on an android device we have to go to "BUILD" at the top and click APP provide QRcode, through the QRcode we can download the appilacation on our android device and test it.

Thanks content and photographs of Klaratoth