I tried to create a basic countdown timer android app using kotlin. My app works completely fine in the emulator. But in the device, it is getting stuck when the countdown timer reaches 1 second, it's not becoming 0. Secondly, I added sound after timer completion which is working fine in the emulator but not in the device again. Just for reference, I am testing the app on the device with android 6. I am attaching the kotlin code below. I am new to android development, any help is very much appreciable.
package com.ankan1998.mtimer
import android.annotation.SuppressLint
import android.media.MediaPlayer
import android.os.Bundle
import android.os.CountDownTimer
import android.util.Log
import android.widget.*
import androidx.appcompat.app.AppCompatActivity
class MainActivity : AppCompatActivity() {
lateinit var xHour: EditText
lateinit var xMin: EditText
lateinit var xSec: EditText
lateinit var xSwitch: Switch
lateinit var xtimer: TextView
lateinit var xReset: Button
private var mTimeLeftInMillis:Long=0
lateinit var xCountDownTimer: CountDownTimer
@SuppressLint("SetTextI18n")
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
xHour = findViewById(R.id.editHour)
xMin = findViewById(R.id.editMinute)
xSec = findViewById(R.id.editSecond)
xtimer = findViewById(R.id.textViewTimer)
xReset=findViewById(R.id.reset)
xSwitch = findViewById(R.id.switch_1)
fun timeDecorator(hr:String,mn:String,sec:String):String{
val h:String = if (hr.length==1) "0$hr" else hr
val m:String=if (mn.length==1) "0$mn" else mn
val s:String=if (sec.length==1) "0$sec" else sec
return "$h:$m:$s"
}
fun playAudio(){
try{
val mediaPlayer: MediaPlayer = MediaPlayer.create(applicationContext,R.raw.ding)
mediaPlayer.start()
}catch (e: Exception){
Toast.makeText(applicationContext,"Media Player failed",Toast.LENGTH_SHORT).show()
}
}
fun convertMillisToLocalTime(ztime:Long):String{
var h = (ztime/1000)/60/60
var m = ((ztime/1000)/60)%60
var s = ((ztime/1000)%60)
Log.d("hour",h.toString())
Log.d("min",m.toString())
Log.d("sec",s.toString())
return timeDecorator(h.toString(),m.toString(),s.toString())
}
fun convertStringToMillis(dateTimeString:String): Long {
var t = dateTimeString.split(":")
var tMilis:Long = t[0].toLong()*60*60*1000 + t[1].toLong()*60*1000+t[2].toLong()*1000
// Log.d("millisecond", tMilis.toString())
return tMilis
}
fun startTimerFunctionality(){
xCountDownTimer = object: CountDownTimer(mTimeLeftInMillis, 1000) {
override fun onTick(millisUntilFinished: Long) {
Log.d("l",millisUntilFinished.toString())
mTimeLeftInMillis=millisUntilFinished
xtimer.setText(convertMillisToLocalTime(millisUntilFinished))
}
override fun onFinish() {
playAudio()
}
}.start()
}
fun pauseTimer(){
xCountDownTimer.cancel()
}
fun activateEdit(txtController:EditText){
txtController.setFocusable(true)
txtController.setFocusableInTouchMode(true)
txtController.setClickable(true)
}
fun deactivateEdit(txtController:EditText){
txtController.setFocusable(false)
txtController.setFocusableInTouchMode(false)
txtController.setClickable(false)
}
xSwitch.setOnCheckedChangeListener { _, isChecked ->
if (isChecked) {
val h : String = xHour.text.toString().ifEmpty { "00" }
val m : String = xMin.text.toString().ifEmpty { "00" }
val s : String = xSec.text.toString().ifEmpty { "00" }
activateEdit(xHour)
activateEdit(xMin)
activateEdit(xSec)
if (m.toInt()>60){
Toast.makeText(this@MainActivity, "Minutes should be less than 60",
Toast.LENGTH_SHORT).show()
xSwitch.setChecked(false)
} else if (s.toInt()>60){
Toast.makeText(this@MainActivity, "Second should be less than 60",
Toast.LENGTH_SHORT).show()
xSwitch.setChecked(false)
}else{
if(mTimeLeftInMillis == 0L) {
xtimer.text = timeDecorator(h, m, s)
mTimeLeftInMillis = convertStringToMillis("$h:$m:$s")
}
Log.d("timer",mTimeLeftInMillis.toString())
startTimerFunctionality()
deactivateEdit(xHour)
deactivateEdit(xMin)
deactivateEdit(xSec)
}
} else {
pauseTimer()
}
}
xReset.setOnClickListener {
xtimer.text="00:00:00"
xHour.text.clear()
xMin.text.clear()
xSec.text.clear()
mTimeLeftInMillis=0
pauseTimer()
xSwitch.setChecked(false)
activateEdit(xHour)
activateEdit(xMin)
activateEdit(xSec)
}
}
}
This is how my app looks for reference
