Create a new list from sorting the input list with the keys in ascending order. The keys are proxy values generated from each item in the list by the body of this block. Here is a tutorial on how …

How do colors work in App Inventor? Internally, App Inventor stores each color as a single number. When you use make color and take in a list as an argument, internally this list is then …

The list by walking key path block works similarly to the get value at key path, but creates a list of values rather than returning a single value. It works by starting at the given dictionary and …

The ListView displays list data in a fixed, vertical manner. If you want to display the list in a different way, such as horizontally with commas, or with decorative text (e.g., numbers in front …

You can make a list of components using global variables. This makes it easy to reference large sets of components through a single list and apply changes using the for-each block. Figure 4. …

We make lists by using the make a list block. This block is a mutator and can be expanded or shrunk by clicking the blue plus sign. Watch the following gif for more details on how to use …

To work with Web APIs that consume JSON, you will want to make use of App Inventor’s list and dictionary types. For example, Example. We can use the Web component’s PostText method …

Splitting apple,banana,cherry,dogfood with a comma as the splitting point returns a list of two items: the first is the text apple and the second is the text banana,cherry,dogfood. Notice that …

Starting with version nb187 of MIT App Inventor, ListViews support advanced layout options. The layout is selected from a list of options in the ListViewLayout property. Elements can then be …

When complete a “TagList” event will be triggered with the list of known tags. GetValue(tag,valueIfTagNotThere) GetValue asks Firebase to get the value stored under the …