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Android Build a Self-Destructing Message Android App Using Fragments for Tabs Understanding the Rest of the Pieces

Posted by Bhekimpilo Ncube
Bhekimpilo Ncube
4,157 Points

We have a Button (mDeleteButton) in our Fragment class below. Set it to the button in the layout with the ID of 'deleteB

What's wrong with my code....

PhotoFragment.java 
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;

public class PhotoFragment extends Fragment {

    public Button mDeleteButton;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);        
        mDeleteButton = (Button) findViewById(R.id.deleteButton)

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_photo, container, false);
        return rootView;
    }
}
MainActivity.java 
import android.app.ActionBar;
import android.app.Activity;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.util.Log;

public class MainActivity extends Activity implements ActionBar.TabListener {

    public static final String TAG = MainActivity.class.getSimpleName();

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

    }

    @Override
    public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {

    }

    @Override
    public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {

    }

    @Override
    public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {

    }
}

1 Answer

Kristian Terziev
Kristian Terziev
28,449 Points

First, you're missing a semicolon. The compiler should have told you that, make sure to check for errors before posting. However, that won't pass the challenge since you have a second mistake.

Have a look at the task again. Make sure you are setting the button in the correct lifecycle method for a Fragment. Meaning it should be inside onCreateView. So it should look something like this:

View rootView = inflater.inflate(R.layout.fragment_photo, container, false);
mDeleteButton = (Button) rootView.findViewById(R.id.deleteButton);
return rootView;
Bhekimpilo Ncube
Bhekimpilo Ncube
4,157 Points

Thnx a mil partner, i wouldnt have guessed this one in weeks