I want to know "how to check that edittext is empty on button click" in kotlin, android studio because my code is not working

Question

Here is my code, and there is no problem in XML all the ids of the views are correct

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val button: Button = findViewById(R.id.button)
        val stringInTextField:EditText = findViewById(R.id.bill)
        button.setOnClickListener(View.OnClickListener{
        val userInput = stringInTextField.text.toString()
        if (userInput.isEmpty) {
            Toast.makeText(this, "Please Enter the Bill", Toast.LENGTH_SHORT).show()
        }
    })
}

You can check this [answer](https://stackoverflow.com/a/6290970/16210149). Hope it would be helpful. — Anatolii Chub, Jun 15 '21 at 09:59

score 1 · Answer 1 · answered Jun 15 '21 at 09:57

There is an error in your code, since String class has no property isEmpty but a method isEmpty(). So fix that error in order to make it work:

if (userInput.isEmpty()) { // Here is the fix
    Toast.makeText(this, "Please Enter the Bill", Toast.LENGTH_SHORT).show()
}

score 0 · Answer 2 · answered Jun 15 '21 at 09:53

0

You can try this code if (!userInput.equals(""))

answered Jun 15 '21 at 09:53

hungcuiga1

114
2
11

Thank you, for giving a short method :) – Rudra Rathi Jun 16 '21 at 12:16

I want to know "how to check that edittext is empty on button click" in kotlin, android studio because my code is not working

2 Answers2