//Use these files and use below code to open timerange picker
class FormActivity: AppCompatActivity(), RangeSetListener {
override fun onRangeSet(fromHour: Int, fromMinute: Int, toHour: Int, toMinute: Int) {
}
private fun openTimeRangePicker() {
val rangePickerDialog = RangePickerDialog()
rangePickerDialog.show(supportFragmentManager, "range_picker")
rangePickerDialog.setRangeListener(this)