I don't know if it's the correct way to predict with many inputs or not. I think there's something wrong in "val inputTensor = OnnxTensor.createTensor( ortEnvironment , floatBufferInputs , longArrayOf( 1, 1 ) )"
class CalculatorActivity : AppCompatActivity() {
private lateinit var binding: ActivityCalculatorBinding
private var isGenderSelected = false
private var previousSelectedPosition = 0
private var selectedGenderValue = 0 // 0 for Female, 1 for Male
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = ActivityCalculatorBinding.inflate(layoutInflater)
setContentView(binding.root)
val textInputEditTextAge = binding.tedAge
val placeholderAge = "... Years"
textInputEditTextAge.inputType = InputType.TYPE_CLASS_NUMBER
textInputEditTextAge.hint = placeholderAge
val textInputEditTextWeight = binding.tedWeight
val placeholderWeight = "... KG"
textInputEditTextWeight.inputType = InputType.TYPE_CLASS_NUMBER
textInputEditTextWeight.hint = placeholderWeight
val textInputEditTextHeight = binding.tedHeight
val placeholderHeight = "... CM"
textInputEditTextHeight.inputType = InputType.TYPE_CLASS_NUMBER
textInputEditTextHeight.hint = placeholderHeight
val textInputEditTextHours = binding.tedHours
val placeholderHours = "... Hours"
textInputEditTextHours.inputType = InputType.TYPE_CLASS_NUMBER
textInputEditTextHours.hint = placeholderHours
val textInputEditTextYears = binding.tedYears
val placeholderYears = "... Years"
textInputEditTextYears.inputType = InputType.TYPE_CLASS_NUMBER
textInputEditTextYears.hint = placeholderYears
val gender = resources.getStringArray(R.array.Gender)
val spinner = binding.genderSpinner
if (spinner != null) {
val adapter = ArrayAdapter(this,
android.R.layout.simple_spinner_dropdown_item, gender)
spinner.adapter = adapter
spinner.onItemSelectedListener = object :
AdapterView.OnItemSelectedListener {
override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
if (isGenderSelected) {
// A gender other than "-- Select your Gender --" has already been selected
if (position == 0) {
spinner.setSelection(previousSelectedPosition) // Set the spinner to the previous selected position
} else {
previousSelectedPosition = position // Update the previous selected position
selectedGenderValue = if (position == 1) 1 else 0 // Convert position to numeric value (0 or 1)
}
} else {
isGenderSelected = true
previousSelectedPosition = position // Set the initial selected position
selectedGenderValue = if (position == 1) 1 else 0 // Convert position to numeric value (0 or 1)
}
}
override fun onNothingSelected(parent: AdapterView<*>) {
// write code to perform some action
}
}
}
binding.btnPredict.setOnClickListener {
val gender = selectedGenderValue.toFloat()
val age = textInputEditTextAge.text.toString().toFloatOrNull()
val weight = textInputEditTextWeight.text.toString().toFloatOrNull()
val height = textInputEditTextHeight.text.toString().toFloatOrNull()
val hours = textInputEditTextHours.text.toString().toFloatOrNull()
val years = textInputEditTextYears.text.toString().toFloatOrNull()
val bmi = (weight?.div(((height?.div(100))?.times((height?.div(100)!!))!!)))
if (gender !=null && age != null && weight != null && height != null && hours != null && years != null && bmi != null){
val ortEnvironment = OrtEnvironment.getEnvironment()
val ortSession = createORTSession(ortEnvironment)
val output = runPrediction(
gender, age, weight, height, hours, years, bmi,
ortSession, ortEnvironment
)
showOutputPopup(output)
} else {
Toast.makeText(this, "Please fill in all the inputs", Toast.LENGTH_LONG).show()
}
}
}
private fun createORTSession( ortEnvironment: OrtEnvironment) : OrtSession {
val modelBytes = resources.openRawResource( R.raw.model ).readBytes()
return ortEnvironment.createSession( modelBytes )
}
private fun runPrediction( genders: Float , age: Float , weight: Float , height: Float , hours: Float , years: Float , bmi : Float , ortSession: OrtSession , ortEnvironment: OrtEnvironment ) : Float {
// Get the name of the input node
val inputName = ortSession.inputNames?.iterator()?.next()
// Make a FloatBuffer of the inputs
val floatBufferInputs = FloatBuffer.wrap( floatArrayOf( genders, age, weight, height, hours, years, bmi ) )
// Create input tensor with floatBufferInputs of shape ( 1 , 1 )
val inputTensor = OnnxTensor.createTensor( ortEnvironment , floatBufferInputs , longArrayOf( 1, 1 ) )
// Run the model
val results = ortSession.run( mapOf( inputName to inputTensor ) )
// Fetch and return the results
val output = results[0].value as Array<FloatArray>
return output[0][0]
}
fun showOutputPopup(output: Float) {
// Inflate the custom layout for the popup
val inflater = layoutInflater
val popupView = inflater.inflate(R.layout.popup_output, null)
// Find views within the custom layout
val tvOutput = popupView.findViewById<TextView>(R.id.tvOutput)
val btnClose = popupView.findViewById<Button>(R.id.btnClose)
// Set the output text
tvOutput.text = "Output is $output"
// Create the dialog builder
val builder = AlertDialog.Builder(this)
builder.setView(popupView)
// Create and show the dialog
val dialog = builder.create()
dialog.show()
// Handle button click
btnClose.setOnClickListener {
dialog.dismiss() // Close the dialog when the button is clicked
}
}
}
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