Create a Bill Generator App in MIT App Inventor 2

Create a Bill Generator App in MIT App Inventor 2

Table of Contents:

1. Introduction
2. Creating the Layout
3. Adding Checkboxes and Labels
4. Calculating the Total Amount
5. Displaying the Calculated Amount
6. Running the App
7. Conclusion

Introduction

Welcome to this tutorial where we will learn how to create a small software using checkboxes and MIT App Inventor. In the previous tutorial, we discussed buttons, and in this tutorial, we will focus on checkboxes. We will be creating a software that calculates the price of items selected by the user.

Creating the Layout

To start, we need to create a layout for our software. We will use a scroll arrangement and hide it as fill parent. We will also add a form component and four elements: three checkboxes, one label for calculating the amount, and one button to get the amount. Additionally, we will add a label to display the name of our software.

Adding Checkboxes and Labels

Next, we will assign variables to the checkboxes and initialize a global variable called "total amount" with a value of 0. We will use a conditional statement to check if the checkboxes are checked or unchecked. If a checkbox is checked, we will add or subtract a specific value from the total amount. For example, if checkbox 1 is checked, we will add 500 to the total amount.

Calculating the Total Amount

In this step, we will calculate the total amount based on the checkboxes that are checked. Each checkbox has a specific value associated with it, which will be added or subtracted from the total amount.

Displaying the Calculated Amount

Once the total amount is calculated, we will display it on a label using a button click event. The label will show the calculated amount using the "text" property.

Running the App

Now, we can run the app on our mobile phone and see how it works. We can select checkboxes and click on the calculate button to see the total amount displayed on the label.

Conclusion

In this tutorial, we have learned how to create a software using checkboxes and MIT App Inventor. We have covered topics such as creating the layout, adding checkboxes and labels, calculating the total amount, and displaying the calculated amount. By following this tutorial, you can now create your own software with checkboxes.

Highlights:

• Learn how to create a software using checkboxes
• Use MIT App Inventor for development
• Calculate and display the total amount based on checkbox selection

FAQ:

Q: Can I use more than three checkboxes in my software? A: Yes, you can add as many checkboxes as you need. Just make sure to update the code accordingly.

Q: How can I change the values associated with each checkbox? A: You can modify the values in the code to match your requirements.