Quick Graph is a calculator app that's dedicated to graphing. def solve_linear(equation,var='x'): expression = equation. Once we have the BMI, we will set it to the result Textview and use the above chart to get the description using simple if-else. Once we get the height and weight entered by the user, simply we will calculate the BMI, and later we will use Decimal Format to format the decimal up to 2 single points. Since this value will be in the string form, we will convert it into Double. Once done, we will get the value entered by the user using the getText() method. In myButtonListenerMethod(), we will add an event listener to our button, and then we will grab all the views using the findViewById() method. We will create a method called “myButtonListenerMethod()” that will hold the main logic and we will make a call to this method in our onCreate() method. Step 2: Developing the functional logic using Java TIP: Give meaning full names to the id’s of each view in XML.
Thus, below is our XML code, We will be using Linear Layout to position all the views linearly one of the other. Next, we will need an EditText followed by Textview and EditText again!Īlso, We will need a Button that will later have an Event Listener so that on click of the button, BMI gets calculated.įinally, we will need three text views, one will hold the heading “Your result” and another two will act as a container where we will later show the BMI result and description of the BMI result. Thus, looking at the above UI we can see we will need the first two TextViews to hold the heading “BIM Calculator” and “Your Height in Cm”. Thus, we know, we use XML files to create the user interface of our apps. I assume you have a basic exposure to Android Studio. So let’s get started.įire up your android studio and create a new project and name it as “BMI Calculator”
So, we will follow the above chart to calculate BMI and determine results. We will be following the below BMI Index, The formula of BMI, BMI = weight / (height) 2 So we will create a simple BMI Calculator app that would look like below,īut, What is a CMS(Content Management System)?Ī content management system (CMS) is a software platform that enables users to add, publish, modify, and manage website content without requiring users to have specialized programming knowledge. This means that as the BMI score increases, so does a person’s total body fat. It is more of an indicator than a direct measurement of a person’s total body fat.īMI, more often than not, correlates with total body fat. Do you know the basics of Java? And ever wished to develop your own apps? Then this article is for you! Just with your basic knowledge of java, we will be creating a simple android app that will be a BMI Calculator.īody Mass Index (BMI) is a measurement of a person’s weight with respect to his or her height.
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