(kotlin) editText.toString().toInt() isn't work in anroid studio

Question

val editText1 = findViewById<EditText>(R.id.editText1);

if(comNum != editText1.toString().toInt() ){

 View4.text = "오답"
            } else View4.text = "정답"

The installed apk is not working. I think edittext.toString.toInt is wrong.

Can you post stack trace from logcat? – adityakamble49 Jul 19 '18 at 07:11 — adityakamble49, Jul 19 '18 at 07:11

score 6 · Accepted Answer · edited Jul 30 '19 at 18:07

6

Get the String out of EditText: editText1.getText().toString().toInt()

edited Jul 30 '19 at 18:07

AskNilesh

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answered Jul 19 '18 at 07:12

2

Thank you so much!!! i handled almost 3 hours ㅠㅠ. very very thank you – 유재언 Jul 19 '18 at 07:15

score 1 · Answer 2 · answered Jul 19 '18 at 07:12

1

Wrong

 editText1.toString().toInt()

It should be

editText1.text.toString().toInt()

FYI

toInt() Parses the string as an Int number and returns the result. if the string is not a valid representation of a number you will receive NumberFormatException .

answered Jul 19 '18 at 07:12

IntelliJ Amiya

74,896
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score 1 · Answer 3 · answered Jul 19 '18 at 07:13

1

Try this

 val editText1 = findViewById<EditText>(R.id.editText1);

  if(comNum != Integer.parseInt(editText1.text.toString()) ){

     View4.text = "오답"
        } else View4.text = "정답"

answered Jul 19 '18 at 07:13

Maitri

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GianhTran · Answer 4 · 2018-07-19T07:19:23.007

1

Try below code, you can not using editText1.toString().toInt()

  var value: Int

  try {
         value =  editText1.text.toString().toInt();
  } catch (e: NumberFormatException) {
         // value of editText1 is a invalid Integer
  }
  if(comNum != value ){
  View4.text = "오답"
  } else View4.text = "정답"

hope this helps

edited Jul 19 '18 at 07:19

answered Jul 19 '18 at 07:13

GianhTran

3,443
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score 0 · Answer 5 · edited Jul 19 '18 at 07:17

0

Use

editText1.text.toString().toInt()

edited Jul 19 '18 at 07:17

AskNilesh

67,701
16
123
163

answered Jul 19 '18 at 07:16

Rajiv Jaiswal

1
3

(kotlin) editText.toString().toInt() isn't work in anroid studio

5 Answers5