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

Posted by Jaeyong Kwack
Jaeyong Kwack
Courses Plus Student 2,449 Points

I don't know what is wrong with "mExterminateButton = findBiewById(button1);"

I don't know..

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

public class MainActivity extends Activity {

    protected Button mExterminateButton;

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

        // Declare our view variables
        mExterminateButton = findViewById(button1);
    }

}
Kolten Sturgill
Kolten Sturgill
808 Points
Kolten Sturgill
Kolten Sturgill
808 Points

You need to use R.id.button1 in the findViewById function. Should work after that. :)

1 Answer

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

And you have to cast the return to a Button:

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