gistfile1.java

protected void onBindView(View view) {
    super.onBindView(view);

    View checkboxView = view.findViewById(com.android.internal.R.id.checkbox);
    if (checkboxView != null && checkboxView instanceof Checkable) {

        ((Checkable) checkboxView).setChecked(mChecked);

		// ...
    }

    // Sync the summary view
	// ...
}