How to pass editText value to attribute to int type on Android?

Asked

Viewed 5,189 times

2

I have a question about the value store coming from EditText for attributes of type int of a class. For attributes of the type String I do so:

objEquipamento.setMarcaModelo(edtMarcaModelo.getText().toString());

But when my attribute is like int? and I want to write a number? I have to convert the value or there is some method to int?

java android oop

3 answers

2

You will have to use the method Integer.Parseint() as follows:

try{
    objEquipamento.setMarcaModelo(Integer.ParseInt(edtMarcaModelo.getText().toString()));
} catch (NumberFormatException e) {
      //erro ao converter
}

It is important that you put the processing and force the user to actually type an Integer as follows in xml:

<EditText android:numeric="integer" ..../>
  • 1

    very good this tip in xml, thank you

1


Use Integer.html#parseInt:

objEquipamento.setMarcaModelo(Integer.ParseInt(edtMarcaModelo.getText().toString().trim()));

If Integer.html#parseInt cannot perform the conversion, an exception NumberFormatException is launched, if you prefer to return a default value instead, do:

public static int MyParseInt(String texto, int valorPadrao) {
   try {
      return Integer.parseInt(texto);
   } 
   catch (NumberFormatException e) {
      return valorPadrao;
   }
}

Use like this:

objEquipamento.setMarcaModelo(MyParseInt(edtMarcaModelo.getText().toString().trim(), 0));

To double, use Double.html#parseDouble.

  • @Vinicius There is yes, http://docs.oracle.com/javase/7/docs/api/java/lang/Double.html#parseDouble(java.lang.String)

  • for double type attributes I do so? objServico.setValorTotal(Double.parseDouble(edtMarcaModel.gettext(). toString()));

1

You can use parseint yes, but since it is an editText, you can insert a non-numeric character, causing an exception, so this needs to be handled

Browser other questions tagged java android oop

You are not signed in. Login or sign up in order to post.