Toast cancel not working, toast are still waiting in queue-CodePudding

I found many similar question but none worked for me.

    fun check(isLeft:Boolean){
        val toast:Toast=Toast.makeText(this,"",Toast.LENGTH_SHORT)
        if(isLeft){
            if(left.text.toString().toInt()>right.text.toString().toInt()){
                main.setBackgroundColor(Color.GREEN)
                toast.cancel()
                toast.setText("Correct")
                toast.show()
            }else{
                main.setBackgroundColor(Color.RED)
                toast.cancel()
                toast.setText("In-Correct")
                toast.show()
            }
        }else{
            if(right.text.toString().toInt()>left.text.toString().toInt()){
                main.setBackgroundColor(Color.GREEN)
                toast.cancel()
                toast.setText("Correct")
                toast.show()
            }else{
                main.setBackgroundColor(Color.RED)
                toast.cancel()
                toast.setText("In-Correct")
                toast.show()
            }
        }
        randomNumber(left,right)
    }

Toast is waiting in queue rather then being displayed intently.Even when toast.cancel() is used by me.

Is toast.cancel() depreciated?

CodePudding user response：

toast.cancel() is not deprecated and will cancel the toast-object that you created with makeText(). If you want to cancel a previously queued toast (by calling .show()) you must call .cancel() on that other instance. i.e.:

val toast1:Toast = Toast.makeText(applicationContext,"One",Toast.LENGTH_LONG).show()
toast1.show()
toast1.cancel()
val toast2:Toast = Toast.makeText(applicationContext,"Two",Toast.LENGTH_SHORT).show()
toast2.show()

CodePudding user response：

As the answer has said, the cancel() is for an instance created by makeText(). I can understand why do you want to call cancel() first. I think you want something like this:

toast?.apply { toast.cancel() }
toast=Toast.makeText(this,"Correct",Toast.LENGTH_SHORT)
toast.show()

And of course, you need to modify the other setText()s as well.