title: open alertDialog in kotlin, how to set both message with radio buttons
body: <p>Trying to open a alertDialog in kotlin,  the dialog needs to show title and some text message and some radio button list.</p>
  
  <p>made the dialog part work, but cannot set the message (body), if set the message then the radio button will not be shown(???). </p>
  
  <p>I guess this might be limitation of the alertDialog, or anyone knows work around?</p>
  
  <pre><code>fun openAlertDialog(title: String, alertMessage: String, items: ArrayList&lt;String&gt;) {
      val poistion = 0
      val alertDilogBuilder = AlertDialog.Builder(activity, R.style.myDialogeTheme)
      alertDilogBuilder.setTitle(title)
  
      //alertDilogBuilder.setMessage(alertMessage)   //&lt;== if setMessage the radio button will not show
  
             .setSingleChoiceItems(list, poistion, object : DialogInterface.OnClickListener {
                  override fun onClick(dialog: DialogInterface, index: Int) {
                      onSelectedCategory(items[index])
  
                      Toast.makeText(activity.applicationContext,
                                      items[index],  
                                      Toast.LENGTH_SHORT).show()
  
                      dialog.dismiss()
                  }
              })
  
          alertDialog = alertDilogBuilder.create()
          alertDialog.setButton(AlertDialog.BUTTON_POSITIVE, “Ok", {
              dialogInterface, i -&gt;
              onSelectedCategory(items[0])
          })
          alertDialog.setButton(AlertDialog.BUTTON_NEUTRAL, "Cancel", {
              dialogInterface, k -&gt;
              dialogInterface.dismiss()  
          })
          alertDialog!!.show()
  }
  </code></pre>