@Override
    public void onViewCreated (View view, Bundle savedInstanceState) {
        Activity a = getActivity();
        Button mButton = new Button(a);
        mButton.setText("Add crime");
        mButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {newCrime();};
        });
        ListView vv = getListView();
        a.addContentView(mButton, new WindowManager.LayoutParams(WindowManager.LayoutParams.WRAP_CONTENT,
                WindowManager.LayoutParams.WRAP_CONTENT));
        vv.setEmptyView(mButton);
    }