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app-inventor

Display Recipes Using App Inventor

I am using app inventor to build a recipe app. I was wondering how I could take the information from a user submitting stuff into this form Picture I am very new to app inventor and so I don't think it's complete. I would like to take whatever the user will submit and display it on another screen. How could I do this? Please tell me where I am not clear.

Solution

  • There are many methods for a user to input data in App Inventor apps. A good example is a spinner.

    According to the AI2 documentary, a spinner component that displays a pop-up with a list of elements. It looks like this.

    Source: Pevest.com Source: Pevest.com

    The user can select an option. Once an option is selected, a spinner.AfterSelecting event triggers.

    when Spinner1.AfterSelecting [selection]

    The orange section of the event controller holds a variable. The variable denotes the option the user chose. It updates automatically when a new option is chosen.

    You may use the variable provided to send data the rest of the app. For example,

    enter image description here

    • The set command sets recipeName to the option the user chose.
    • If you want to open another screen and send some information to it, use the startScreen with startValue function. It allows you to send custom text, which you can get on the other screen using the Get Start Value under Control blocks