从活动片段的arraylist中删除项

我现在正试图通过创建一个简单的购物清单来学习如何在活动片段之间来回传递数据,在这个清单中可以删除项目。杂货店ArrayList将与delete按钮一起位于活动中,片段将显示ArrayList。当应用程序启动并加载所有内容时,用户将能够从列表中选择片段中的项目。当用户点击Delete时,ArrayList中的选定项将被删除,片段将重新加载更新的列表。

我可以启动应用程序并正确加载所有内容,直到我删除一个项目。该项删除(我有一个日志要检查),但我需要找到一种方法来更新片段中的ArrayList。当我再次尝试删除另一个项目时,应用程序崩溃。

这是我的日志:

java.lang.IllegalStateException: The content of the adapter has 
changed but ListView did not receive a notification. Make sure 
the content of your adapter is not modified from a background 
thread, but only from the UI thread. Make sure your adapter calls 
notifyDataSetChanged() when its content changes. [in ListView(2131427424,
class android.widget.ListView) with Adapter(class android.widget.ArrayAdapter)]

以下是我的主要活动:

public class MainActivity extends AppCompatActivity implements Tab1.OnDataPass {

public SectionsPageAdapater mSectionsPageAdapter;
ViewPager mViewPager;

ArrayList<String> valuesArray = new ArrayList<String>();

int index = -1;

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

    mSectionsPageAdapter = new SectionsPageAdapater(getSupportFragmentManager());
    mViewPager = (ViewPager) findViewById(R.id.viewContainer);

    valuesArray.add("apple");
    valuesArray.add("banana");
    valuesArray.add("cherry");
    valuesArray.add("dragon fruit");
    valuesArray.add("eggplant");

    mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
        }

        @Override
        public void onPageSelected(int position) {

        }

        @Override
        public void onPageScrollStateChanged(int state) {

        }
    });

    setupViewPager(mViewPager);
}

@Override
public void onDataPass(Integer indexNum) {
    index = indexNum;
}

public void onClickDelete (View v) {

    if (index >= 0) {
        valuesArray.remove(index);
    }

    index = -1;
}

private void setupViewPager(ViewPager viewPager) {
    SectionsPageAdapater adapter = new SectionsPageAdapater(getSupportFragmentManager());
    adapter.addFragment(new Tab1(), "TAB1");
    viewPager.setAdapter(adapter);
}

public ArrayList<String> getDataLog() {
    return valuesArray;
}
}

我的片段:

public class Tab1 extends Fragment {
Button btnPass, btnPass2;
ListView listview;
ArrayList<String> valuesArray = new ArrayList<String>();

int index = -1;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.activity_tab1,container,false);

    btnPass = view.findViewById(R.id.btnPass);
    btnPass2 = view.findViewById(R.id.btnPass2);

    listview = view.findViewById (R.id.listview);

    MainActivity activity = (MainActivity) getActivity();
    valuesArray = activity.getDataLog();


    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(),
            android.R.layout.simple_list_item_1, valuesArray);
    listview.setAdapter(adapter);

    listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapter, View view, int position, long id) {
            index = (int) id;
            passData((index));
        }
    });

    return view;
}



OnDataPass dataPasser;

public interface OnDataPass {
    void onDataPass(Integer index);
}

@Override
public void onAttach(Context a) {
    super.onAttach(a);
    dataPasser = (OnDataPass) a;
}

public void passData(Integer index) {
    dataPasser.onDataPass(index);
}
}

和我的适配器:

public class SectionsPageAdapater extends FragmentPagerAdapter {

private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();

public void addFragment(Fragment fragment, String title) {
    mFragmentList.add(fragment);
    mFragmentTitleList.add(title);
}

public SectionsPageAdapater(FragmentManager fm) {
    super(fm);
}

@Override
public CharSequence getPageTitle(int position) {
    return mFragmentTitleList.get(position);
}

@Override
public Fragment getItem(int position) {
    return mFragmentList.get(position);
}

@Override
public int getCount() {
    return mFragmentList.size();
}
}