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

Posted by shalini bindal
shalini bindal
182 Points

initialize a member variable mExterminate button bu using findviewbyid with button id button1 and dnt forget to cast the

mExterminateButton

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;
   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

Sagar Suri
Sagar Suri
6,043 Points
Sagar Suri
Sagar Suri
6,043 Points

its R.id.button1 ."id" should not be in upper case ....and one big mistake...U have to initialize the button inside onCreate() method after setContentView() .Now your program will run