/Kotlin/Kotlin android click again to exit

Kotlin android click again to exit

    private var backPressedTime:Long = 0
lateinit var backToast:Toast
   override fun onBackPressed() {
            backToast = Toast.makeText(this, "Press back again to leave the app.", Toast.LENGTH_LONG)
        if (backPressedTime + 2000 > System.currentTimeMillis()) {
            backToast.cancel()
            super.onBackPressed()
            return
        } else {
            backToast.show()
        }
        backPressedTime = System.currentTimeMillis()
    }

Source: youtube.com

Similar codes

0 vote199 views1 answer
Kotlin labels
Kotlin
1 vote190 views1 answer
Typeerror: undefined is not an object (evaluating
Kotlin
1 vote199 views1 answer
Write to file kotlin
Kotlin
0 vote196 views2 answers
Kotlin variable possiblement null
Kotlin
1 vote219 views1 answer
Kotlin arrow function
Kotlin
-1 vote220 views1 answer
Kotlin time hours
Kotlin
0 vote187 views1 answer
Kotlin http request
Kotlin
-5 votes200 views2 answers
Handler in kotlin to delay
Kotlin
0 vote190 views1 answer
Kotlin split list by predicate
Kotlin
1 vote186 views1 answer
Kotlin else if
Kotlin