CODEWITHSUNDEEP
androidandroid-layoutnullpointerexception
Manju
Manju

Reputation: 727

java.lang.NullPointerException Error when trying to set and editText widget

I have a strange error, I get NullPointerException error when I set text to EditText. Code is something like below:

EditText editTxt;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    editTxt = (EditText) findViewById(R.id.edtTxt);
    if(someCondition) {
        if (editTxt!=null)
            editTxt.setText("HelloWorld");
        }
    }
}

Upvotes: 0

Views: 1162

Answers (4)

Manju
Manju

Reputation: 727

//Got it working like this, 
String hello = "HelloWorld!"; 
EditText editTxt; 
@Override public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    editTxt = (EditText)findViewById(R.id.edtTxt); 
    if(someCondition) {
        if(editTxt!=null) editTxt.setText(hello); 
    } 
}

Upvotes: 0

Nitesh Khosla
Nitesh Khosla

Reputation: 875

Please try this code:

EditText editTxt = (EditText) findViewById(R.id.text);

if (editTxt!=null) {
    editTxt.setText("HelloWorld");
}

Upvotes: 0

Tofeeq Ahmad
Tofeeq Ahmad

Reputation: 11975

in this small code,There should be one Error only

    editTxt = (EditText)findViewById(R.id.edtTxt);

that your id in xml doesnot match with edtTxt.If yes then try to clean it once then run

Upvotes: 1

duffymo
duffymo

Reputation: 309008

The object that's cited in the stack trace wasn't initialized. You never asked it to point to a new object on the heap.

I'm putting my money on that reference R. I don't see where that's initialized.

Upvotes: 0

Related Questions