How do I return an int from EditText? (Android)

问题

Basically, I want an EditText in Android where I can have an integer value entered into. Perhaps there is a more appropriate object than EditText for this?

回答1:

For now, use an EditText. Use android:inputType="number" to force it to be numeric. Convert the resulting string into an integer (e.g., Integer.parseInt(myEditText.getText().toString())).

In the future, you might consider a NumberPicker widget, once that becomes available (slated to be in Honeycomb).

回答2:

Set the digits attribute to true, which will cause it to only allow number inputs.

Then do Integer.valueOf(editText.getText()) to get an int value out.

回答3:

First of all get a string from an EDITTEXT and then convert this string into integer like

      String no=myTxt.getText().toString();       //this will get a string                               
      int no2=Integer.parseInt(no);              //this will get a no from the string

回答4:

You can do this in 2 steps:

1: Change the input type(In your EditText field) in the layout file to android:inputType="number"

2: Use int a = Integer.parseInt(yourEditTextObject.getText().toString());

来源：https://stackoverflow.com/questions/4903515/how-do-i-return-an-int-from-edittext-android