MainActivity.kt
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package com.example.quickmax
import android.os.Bundle
import android.os.CountDownTimer
import android.view.View
import android.widget.Button
import android.widget.RadioButton
import androidx.appcompat.app.AppCompatActivity
import androidx.cardview.widget.CardView
import kotlinx.android.synthetic.main.activity_main.*
class MainActivity : AppCompatActivity() {
private var answerSet = AnswerSet(4)
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
addRadioButtons()
timer.start()
}
private fun addRadioButtons() {
for (answer in answerSet) {
findViewById<Button>(answer.buttonId).text = answer.value.toString()
findViewById<Button>(answer.buttonId).setOnClickListener { processAnswer(answer.correct) }
}
}
private fun processAnswer(correct: Boolean) {
timer.cancel()
makeRadioButtonsUncheckable()
val responseFragment = ResponseFragment.newInstance().also {
f -> f.arguments = Bundle().also {
b -> b.putBoolean("correct", correct) } }
supportFragmentManager
.beginTransaction()
.add(R.id.main_layout, responseFragment, "response")
.commitAllowingStateLoss()
}
private fun makeRadioButtonsUncheckable() {
for (answer in answerSet) {
findViewById<Button>(answer.buttonId).isClickable = false
}
}
fun reload() {
val intent = intent
finish()
startActivity(intent)
}
private val timer = object : CountDownTimer(4000, 1000) {
override fun onTick(millisUntilFinished: Long) {
tv_time_left.text = (millisUntilFinished / 1000).toString()
}
override fun onFinish() {
makeRadioButtonsUncheckable()
supportFragmentManager
.beginTransaction()
.add(R.id.main_layout, TimeIsOverFragment.newInstance(), "time_is_over")
.commitAllowingStateLoss()
}
}
}