Question

In the eclipse/android AVD, I get “Unfortunately, has stopped”

I have checked other Qs about this, but none helped.

I assume it is my code that is faulty, because when I comment the code out, it runs fine. However, the android code-checker thingy shows no errors.

This is my code:

public TextView TextView;

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

public void setTextView(){
    TextView tv = (TextView);
    findViewById(R.id.textView1); 
    tv.setText("4");
}

I tried this aswell, but the same happened

public TextView TextView;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    TextView tv = (TextView);
    findViewById(R.id.textView1); 
    tv.setText("4"); 
}

I’m not sure whether the structure of my code is correct either.

Answer 1

 TextView tv = (TextView);

Makes tv as null and when you do tv.set... it throws NullPointerException.

Try below code.

  TextView tv = (TextView)findViewById(R.id.textView1); 
    tv.setText("4");