Expert Android Guide

var etsearch: EditText? = null override fun onCreate(savedInstanceState: Bundle?) { super .onCreate(savedInstanceState) etsearch!!.addTextChangedListener( object : TextWatcher { override fun afterTextChanged(s: Editable?) { } override fun beforeTextChanged(s: CharSequence?,  start: Int, count: Int, after: Int) { } override fun onTextChanged(s: CharSequence?,  start: Int, before: Int, count: Int) { } }) }

Today I create an array with initialization same as java code. I am new to kotlin I tried below and it's working great. var link : ArrayList<Link> = ArrayList <Link> ()

I have reviewed for couple of days after i found that how can we do static variable in android kotlin. Here is demo code example. class App : Application() { companion object { var myModel : MyModel? = null } override fun onCreate() { super .onCreate() } }   Thanks

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