Cannot resolve symbol 'RED'!

Thanks but the relativeLayout object isn't the problem, it's the 'color'. Android studio highlighted the 'RED' part as an error as if it doesn't recognise it. If I 'alt+enter' on it, it just shows three options - Create class 'RED', Create inner class 'RED' and Rename reference.

Paste your code.

Also, be sure Color is uppercase.

While I was copying the code, I noticed 'color' was in lowercase so I changed it to uppercase and the 'cannot resolve symbol' error moved to 'Color' instead of 'RED' so I pressed 'alt+enter' on it and the error disappeared for some reason. I'm not sure what I did wrong before and what alt+enter did to fix the error. Anyway, here's the code below.

public class FunFactsActivity extends Activity { private FactBook mFactBook = new FactBook();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_fun_facts);

    //Declare our view variables and assign the views from the layout file
    final TextView factLabel = (TextView) findViewById(R.id.factTextView);
    Button showFactButton = (Button) findViewById(R.id.showFactButton);

    final RelativeLayout layout = (RelativeLayout) findViewById(R.id.relativeLayout);

    View.OnClickListener listener = new View.OnClickListener() {
        @Override
        public void onClick(View view) {
        String fact = mFactBook.getFact();


        //Update the label with our dynamic fact
        factLabel.setText(fact);
        layout.setBackgroundColor(Color.RED);
        }
    };
    showFactButton.setOnClickListener(listener);
}

}

It appears using layout instead of relativeLayout and an uppercase Color. Sometimes when you make changes it doesn't recognize a change so you have to rebuild your project (build > rebuild). Alt-clicking may have rebuilt your project. Either way, congrats on fixing your problem!

Okay, thanks! :D