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

Posted by Bro Winchester
Bro Winchester
479 Points

can someone look at my code and tell me where i am going wrong with this challenge?

i don't see where i am going wrong ? Initialize the member variable mExterminateButton using the findViewById() method. The ID for the button is button1. Don't forget to cast the generic View returned by the method!

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

public class MainActivity extends AppCompatActivity {

    protected Button exterminateButton;

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

        // Declare our view variables
      mExterminateButton = (Button) findViewById(R.id.button1);

    }

}

2 Answers

Ethan M
Ethan M
10,637 Points
Ethan M
Ethan M
10,637 Points

Take a closer look at your variables.

Bro Winchester
Bro Winchester
479 Points
Bro Winchester
Bro Winchester
479 Points

ok so i got it. can you explain to me why the (m) wasn't necessary ?

Ethan M
Ethan M
10,637 Points

Because the variable was never declared with the prefix 'm'. You'll run into different code styles in your career of programming. It's good to adapt to them, assuming every variable has 'm' prefixed should not happen.