BMI Calculator – Fyne GUI Golang tutorial 32 , 33
BMI Calculator – Fyne GUI Golang tutorial 32 , 33
BMI Calculator – Fyne GUI Golang tutorial 32 , 33
package main
import (
"fmt"
"image/color"
"math"
"strconv"
"fyne.io/fyne/v2"
"fyne.io/fyne/v2/app"
"fyne.io/fyne/v2/canvas"
"fyne.io/fyne/v2/container"
"fyne.io/fyne/v2/widget"
)
func main() {
// Convert logic to Beautiful UI
// New app
a := app.New()
//New title
w := a.NewWindow("BMI Calc")
// resize
w.Resize(fyne.NewSize(400, 400))
// label
label := canvas.NewText("BMI Calc", color.Black)
label.Alignment = fyne.TextAlignCenter
label.TextSize = 20
// for resutl
result := canvas.NewText("", color.Black)
result.Alignment = fyne.TextAlignCenter
result.TextSize = 20
// input height
inputH := widget.NewEntry()
inputH.SetPlaceHolder("Enter height in cm..")
inputW := widget.NewEntry()
inputW.SetPlaceHolder("Enter Weight in KG..")
btn1 := widget.NewButton("Calc BMI", func() {
h, _ := strconv.ParseFloat(inputH.Text, 64)
w, _ := strconv.ParseFloat(inputW.Text, 64)
result.Text = calculateBMI(h/100, w)
result.Refresh()
})
// setup content
w.SetContent(
container.NewVBox(
label,
result,
inputH,
inputW,
btn1,
))
w.ShowAndRun()
}
// converting into function
func calculateBMI(height, weight float64) string {
// copy the above code and paste here
// BMI formula BMI = w/ h ^2
var BMI float64 = weight / math.Pow(height, 2) // math.Pow(base,power)
// conditions
// BMI <= 18.4 "You are underweight.")
if BMI <= 18.4 {
fmt.Println("You are underweight.")
return "You are underweight."
} else if BMI <= 24.9 { // BMI <= 24.9 "You are healthy.")
fmt.Println("You are healthy.")
return "You are healthy."
} else if BMI <= 29.9 { // BMI <= 29.9 "You are over weight.")
fmt.Println("You are over weight.")
return "You are over weight."
} else if BMI <= 34.9 { // BMI <= 34.9 "You are severely over weight.")
fmt.Println("You are severely over weight.")
return "You are severely over weight."
} else if BMI <= 39.9 { // BMI <= 39.9 "You are obese.")
fmt.Println("You are obese.")
return "You are obese."
} else { // "You are severely obese.")
fmt.Println("You are severely obese.")
return "You are severely obese."
}
}
