I am writing barcode scanner app for PDA device. In this device there is only LF terminator. So When I scan the barcode, the cursor jumped to another line.Even thought I set edittext.requestFocus() the cursor will not come back to the start of the edit text. I would like to call back the cursor to the first line and position"0". How can I do that? And another thing is , Can I get the pressed trigger keycode? Here is the code -
ID.setOnKeyListener(View.OnKeyListener { _, keyCode, event ->
if (event.keyCode == KeyEvent.KEYCODE_ENTER && event.action == KeyEvent.ACTION_DOWN ) {
if (edt_location.text.toString() == "" || edt_qty.text.toString() == "") {
Toast.makeText(this, "Make Sure To Enter Location And Qty", Toast.LENGTH_SHORT)
.show()
edt_id.setText("")
} else{
try {
val item=Item(
edt_id.text.toString(),
Integer.parseInt(edt_qty.text.toString()),
edt_location.text.toString()
)
qt=edt_qty.text.toString().toInt()
record_code=edt_id.text.toString()
record_location=edt_location.text.toString()
db.addItem(item)
db.viewData()
txt_article.setText(code.toString())
txt_price.setText(price.toString())
txt_description.setText(desc.toString())
txt_isbn.setText(record_code.toString())
txt_tran_qty.setText(qty.toString())
record_id=edt_id.text.toString()
edt_id.setText("")
edt_id.requestFocus()
} catch (nfe: NumberFormatException) {
nfe.printStackTrace()
}
}
}
false
})
