Android KTX

How to migrate existing java files to Kotlin ?

Here are the steps

1. Android Studio Menu -> Code -> Convert Java File to Kotlin FileHere is how the functions appears once you convert Java
   
2. For Threads & Handler make sure you use inner classes instead function because Kotlin throw a warning saying handler leak,
   
   
    
3. 
   
4. Here is the example code how to use the Handler and thread
   
   

   var mIncomingHandler = Handler(IncomingHandlerCallback())

   
   

   internal inner class IncomingHandlerCallback : Handler.Callback {
   
       override fun handleMessage(message: Message): Boolean {
   
           swipe_refresh_layout.isRefreshing = false        if (message.what == GetCountryFactsThread.GETCOUNTRYFACTSTHREAD_SUCCESS) {
               val countryFactRespo = message.obj as String
               mCountryModel = ResponseManager.parseCountryFactsRespo(countryFactRespo)
   
               updateAdp(mCountryModel!!)
   
           } else if (message.what == GetCountryFactsThread.GETCOUNTRYFACTSTHREAD_FAIL) {
               //Write code handle if any session expiry            showSnackBar(resources.getString(R.string.no_internet))
           }
           return true    }
   }

   
   
   You can call it as below inside the onCreate method of activity
   
   

   GetCountryFactsThread(this, mIncomingHandler).start()