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Android Build an Interactive Story App (Retired) User Input Finding Views by IDs

Posted by sachin Madishetty
sachin Madishetty
453 Points

sir this is my sol ,iam getting the error i need help

reply me

MainActivity.java 
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity {

    final Button mExterminateButton =(Button) findviewById(R.id.button1);

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


        // Declare our view variables

    }

}

1 Answer

Ben Deitch
STAFF
Ben Deitch
Treehouse Teacher
Ben Deitch
Ben Deitch
Treehouse Teacher

You need to call findViewById from inside the onCreate method.

Try this:

public class MainActivity extends Activity {

    Button mExterminateButton;

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

         mExterminateButton = (Button) findViewById(R.id.button1);

        // Declare our view variables

    }

}