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Sergio AG
Asked: 2020-03-09 16:07:47 +0800 CST 2020-03-09 16:07:47 +0800 CST

Collect values ​​from EditText

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I have a little question on Android. Suppose I have an EditText, in which the user will enter a number by keyboard. How can I collect this value? Let's see, I know how to do it as if it were a text string, which would then be where I do this:

private EditText et1;

et1 = (EditText)findviewbyid(R.id.et1);

String texto = et1.getText().toString();

But I won't do it if instead of text it was a number, for example a number referring to age. How would this value be collected? Thanks and greetings!

java

4 Answers

  1. Best Answer

    You can use this to convert to integer or double (see below): 

    String texto = et1.getText().toString();

    For an integer, either of these 2 ways:

    int numero = Integer.parseInt(texto);
int numero = Integer.parseInt(et1.getText().toString());

    For decimals:

    double decimal = Double.parseDouble(et1.getText().toString());
double decimal = Double.parseDouble(texto);

    You can add .trim()to skip whitespace that may be before or after the entered number:

    int numero = Integer.parseInt(et1.getText().toString().trim());
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  2. Everything you collect will come to you as a String, what you have to do is parse it, for example:

    Int edad = Integer.parse(et1.getText().toString())
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  3. If it is a number it is the same procedure, actually the getText() method returns the text that is displayed by the TextView.

    So it doesn't matter if it's a String or a number.

    But if you want to get the value numericothen you have to convert it, you can use for this Integer.parse():

    Int valor = Integer.parse(et1.getText().toString())

    As a best practice use the method trim()to avoid possible spaces in the content of your EditText:

    Int valor = Integer.parse(et1.getText().toString().trim())
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  4. I recommend that you take some security measures when parsing:

    String sEdad = et1.getText().toString();
Int iEdad = 0;
if("" != sEdad)  iEdad = Integer.parse(sEdad);

    With this you avoid a conversion error in case the parse method is called and the String is empty

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