Android: Check if EditText is Empty when inputType is set on Number/Phone

Question

I have an EditText in android for users to input their AGE. It is set an inputType=phone. I would like to know if there is a way to check if this EditText is null.

I've already looked at this question: Check if EditText is empty. but it does not address the case where inputType=phone.

These, I've checked already and do not work:

(EditText) findViewByID(R.id.age)).getText().toString() == null
(EditText) findViewByID(R.id.age)).getText().toString() == ""
(EditText) findViewByID(R.id.age)).getText().toString().matches("")
(EditText) findViewByID(R.id.age)).getText().toString().equals("")
(EditText) findViewByID(R.id.age)).getText().toString().equals(null)
(EditText) findViewByID(R.id.age)).getText().toString().trim().length() == 0
(EditText) findViewByID(R.id.age)).getText().toString().trim().equals("")
and isEmpty do not check for blank space.

Thank you for your help.

is there a way to check if the EditText set with inputType=phone is null — yesButNotReally, Dec 03 '13 at 11:16
Duplicate(?) of [Check if EditText is empty.](http://stackoverflow.com/q/6290531/456814). — , Aug 13 '14 at 01:09

score 43 · Accepted Answer · edited Oct 03 '17 at 09:09

43

You can check using the TextUtils class like

TextUtils.isEmpty(ed_text);

or you can check like this:

EditText ed = (EditText) findViewById(R.id.age);

String ed_text = ed.getText().toString().trim();

if(ed_text.isEmpty() || ed_text.length() == 0 || ed_text.equals("") || ed_text == null)
{
    //EditText is empty
}
else
{
    //EditText is not empty
}

edited Oct 03 '17 at 09:09

Komal12

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answered Dec 03 '13 at 11:16

Hariharan

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3

No need for `ed_text == null`. It can't be null here. – M-Wajeeh Dec 03 '13 at 11:29
7

and instead `TextUtils.isEmpty(ed_text)` would be more readable. – M-Wajeeh Dec 03 '13 at 11:30
`ed_text.getText().toString().isEmpty()` – Karue Benson Karue Jun 20 '16 at 12:37

Zar E Ahmer · Answer 2 · 2016-03-31T04:24:24.843

6

First Method

Use TextUtil library

if(TextUtils.isEmpty(editText.getText().toString()) 
{
    Toast.makeText(this, "plz enter your name ", Toast.LENGTH_SHORT).show();
    return;
}

Second Method

private boolean isEmpty(EditText etText) 
{
        return etText.getText().toString().trim().length() == 0;
}

edited Mar 31 '16 at 04:24

answered Jan 03 '15 at 19:22

Zar E Ahmer

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error: incompatible types: EditText cannot be converted to CharSequence so cannot be checked by isEmpty – Jason Pascoe Feb 13 '20 at 09:41
Use first method but don't forget to call getText().toString() – Zar E Ahmer Feb 13 '20 at 12:06

score 2 · Answer 3 · answered Jan 15 '20 at 19:36

Add Kotlin getter functions

val EditText.empty get() = text.isEmpty() // it == ""
// and/or
val EditText.blank get() = text.isBlank() // it.trim() == ""

With these, you can just use if (edittext.empty) ... or if (edittext.blank) ...

If you don't want to extend this functionality, the original Kotlin is:

edittext.text.isBlank()
// or
edittext.text.isEmpty()

score 1 · Answer 4 · edited May 09 '20 at 18:12

1

EditText textAge;
textAge = (EditText)findViewByID(R.id.age);
if (TextUtils.isEmpty(textAge))
{
Toast.makeText(this, "Age Edit text is Empty", Toast.LENGTH_SHORT).show();
//or type here the code you want
}

edited May 09 '20 at 18:12

Siddharth Rout

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answered May 26 '19 at 08:02

Samer Kasseb

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Welcome to Stack Overflow. Answering questions here is good but a good answer is more than just code. When answering an old question it is helpful to add significant new information and new insights to the problem. – AdrianHHH May 26 '19 at 08:26

score 0 · Answer 5 · edited Jan 17 '18 at 14:51

0

I use this method for same works:

public boolean checkIsNull(EditText... editTexts){
for (EditText editText: editTexts){
  if(editText.getText().length() == 0){
    return true;
  }
}
return false;
}

edited Jan 17 '18 at 14:51

answered Jan 17 '18 at 14:22

J.Done

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1

score 0 · Answer 6 · answered Apr 10 '19 at 20:45

0

Simply do the following

String s = (EditText) findViewByID(R.id.age)).getText().toString();
TextUtils.isEmpty(s);

answered Apr 10 '19 at 20:45

AZIM MOHAMAD

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score 0 · Answer 7 · edited Jun 12 '19 at 09:55

0

I found that these tests fail if a user enters a space so I test for a missing hint for empty value

EditText username = (EditText) findViewById(R.id.editTextUserName);

EditText password = (EditText) findViewById(R.id.editTextPassword);

// these hint strings reflect the hints attached to the resources

if (username.getHint().equals("Enter your username") || password.getHint().equals("Enter Your Password")){
      // enter your code here 

} else {
      // alls well
}

edited Jun 12 '19 at 09:55

kk.

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answered Jun 12 '19 at 09:43

Sunil

1

1

there is a typepo! EditText username = (EditText) findViewById(R.id.editTextPassword) .. should be on a new line nd is not part of the comment – Sunil Jun 12 '19 at 09:47

score 0 · Answer 8 · answered Dec 02 '19 at 07:49

0

editText.length() usually works for me try this one

if((EditText) findViewByID(R.id.age)).length()==0){
   //do whatever when the field is null`
}

answered Dec 02 '19 at 07:49

Bobby Sebastian

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score 0 · Answer 9 · answered Oct 05 '21 at 22:35

Java: Check if EditText is Empty

1) find the EditText

 ourEditText = view.findViewById(R.id.edit_text);

2) Get String value of EditText

 String ourEditTextString = ourEditText.getText().toString();

3) Remove all spaces

Incase user inputs only blank spaces.

String ourEditTextNoSpaces = ourEditTextString.replaceAll(" ","");

3) Check if empty

boolean isOurEditTextEmpty = ourEditTextNoSpaces.isEmpty();

score -1 · Answer 10 · edited May 09 '20 at 17:42

-1

Try this. This is the only solution I got

String phone;   

 try{
phone=(EditText) findViewByID(R.id.age)).getText().toString();

}
catch(NumberFormatException e){

 Toast.makeText(MainActivity.this, "plz enterphone Number ", Toast.LENGTH_SHORT).show();
    return;

}

edited May 09 '20 at 17:42

Neeraj Sewani

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answered Apr 03 '16 at 04:32

Kafi Junior

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