mButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                FragmentManager manager = getFragmentManager();
                DatePickerFragment datePickerFragment = InstanceOfPicker.newInstance(new DatePickerFragment());
                datePickerFragment.setTargetFragment(CrimeFragment.this, REQUEST_DATE);
                datePickerFragment.show(manager, DIALOG_ID);
            }
        });