Create a new project and give it a name, for example
Click on Screen1 under Components and change the Title property to
Track your exercise here!.
Find the TextBox component in the Palette (under User Interface) and add it to your app, along with a Button.
Change the Text property of the button to
To arrange the components side by side, drag a HorizontalArrangement onto the screen (you’ll find it in Layout) and drag the TextBox and Button into it.
Find the Hint property for the TextBox and type
Minutes. This will appear faintly in the textbox if the user hasn’t typed anything in yet, so they know what to type.
Check the box that says ‘NumbersOnly’ so that only a number can be entered in the TextBox.
Great! The user can type in the number of minutes they exercised for. Now you want to save that information when they press the button.
Switch to the Blocks and take out a
The first thing you’ll need is to create a local variable to store the TextBox value in. Grab the
initialise local name toblock from Variables, and slot it into the
when Button Clickblock.
Then click where it says
nameand instead type
minsto name your local variable.
- Take out a
Textbox.Textblock and attach it onto the
initialise local minsblock to store what’s been typed into the TextBox.
Now that you’ve retrieved this information, you’re going to create a list to put it in. After all, you want to be able to record lots of exercise sessions!
- At the top of your code, add an
initialize global name toblock, and name it
minutesList. Then find the
create empty listblock from Lists and use it to initialise your list.
- From Lists, take the block
add items to listand put it into your local variable block.
You need to attach two things to this block: the list you want to add something to, and the ‘something’ you want to add, meaning the item.
- Hover over the name of your global list variable and grab the
get global minutesListblock that appears. Connect this to the
listattachment of the
add items to listblock.
- Then do the same with the local variable,
mins, to attach a
get minsblock to the item part of
add items to list.
On the next card, you’ll add all the list items together to work out the total amount of exercise you’ve done!