java - 使用 OnItemCLick 时 Android ArrayList 搜索过滤器更改索引

问题描述

这是一个奇怪的问题，几乎看起来像一个错误。所以我使用了一个arraylist和一个扩展ArrayAdapter的customlistview。

arraylist 填充 customlistview，我在操作栏中实现了一个搜索框，用于过滤自定义适配器，顺便说一下，它工作得很好。

问题是我正在尝试使用过滤后的数据，所以我在列表视图上使用 OnItemCLickListener 来使用索引并获取与过滤结果相对应的数据。

但是这里发生的是数据被过滤，arraylist 本身也是如此。

说当我打开活动时，它会显示我的所有联系人，所以我使用搜索栏搜索一个给我这个名字的名字

说保罗，

现在保罗在搜索栏过滤后处于 0 索引现在当我点击保罗时，我期望保罗的数据，但我得到了 arraylist 的原始 0 索引数据的数据

说是阿尼尔

所以在 OniItelClickListiner 里面我得到了 anil 的数据插入了 paul 的

这是代码

public class sendSms extends AppCompatActivity implements LoaderManager.LoaderCallbacks<Cursor> {

    ListView listView;
    ArrayList<contact> arrayList;
    CustomArrayAdapterForContact customArrayAdapterForContact;

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

        listView = (ListView) findViewById(R.id.showContactsListView);

        arrayList = new ArrayList<contact>();
        customArrayAdapterForContact = new CustomArrayAdapterForContact(this, arrayList);
        listView.setAdapter(customArrayAdapterForContact);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Intent intent = new Intent(getApplicationContext(), typeMessage.class);

                intent.putExtra("id", arrayList.get(position).contact_id);
                intent.putExtra("name", arrayList.get(position).display_name);
                intent.putExtra("number", arrayList.get(position).display_number);

                startActivity(intent);
            }
        });

        getSupportLoaderManager().initLoader(5, null, this);
    }


    class CustomArrayAdapterForContact extends ArrayAdapter<contact> {


        ArrayList<contact> contact;

        public CustomArrayAdapterForContact(@NonNull Context context, ArrayList<contact> contact) {
            super(context, 0, contact);
            this.contact = contact;
        }

        @NonNull
        @Override
        public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {

            contact innserContact = getItem(position);

            if (convertView == null){

                convertView = LayoutInflater.from(getContext()).inflate(R.layout.row_layout, parent, false);

            }

            TextView username = (TextView) convertView.findViewById(R.id.subject);
            TextView userNumber = (TextView) convertView.findViewById(R.id.address);

            try {
                if (innserContact.display_name.length() > 30) {
                    username.setText(innserContact.display_name.substring(0, 30));
                }else{
                    username.setText(innserContact.display_name);
                }

                userNumber.setText(innserContact.display_number);
            }catch (Exception e){
                e.printStackTrace();
            }

            return convertView;

        }

    }

    @NonNull
    @Override
    public Loader<Cursor> onCreateLoader(int i, @Nullable Bundle bundle) {
        String[] projection = {
                ContactsContract.Contacts._ID,
                ContactsContract.Contacts.DISPLAY_NAME,
                ContactsContract.Contacts.HAS_PHONE_NUMBER
        };

        return new CursorLoader(
                this,
                ContactsContract.Contacts.CONTENT_URI,
                projection,
                null,
                null,
                ContactsContract.Contacts.DISPLAY_NAME
        );
    }

    @Override
    public void onLoadFinished(@NonNull Loader<Cursor> loader, Cursor cursor) {

        while(cursor.moveToNext()){

            String con_id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
            String con_name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

            if (cursor.getInt(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)) > 0){
                ContentResolver cr = getContentResolver();
                Cursor pCur = cr.query(
                        ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                        null,
                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
                        new String[]{con_id}, null);

                while (pCur.moveToNext()) {

                    String phoneNo = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

                    contact con = new contact(con_id, con_name, phoneNo);
                    arrayList.add(con);

                    break;
                }
                pCur.close();
            }


        }
        customArrayAdapterForContact.notifyDataSetChanged();

    }

    @Override
    public void onLoaderReset(@NonNull Loader<Cursor> loader) {

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        MenuInflater inflater = getMenuInflater();

        inflater.inflate(R.menu.search_box, menu);

        MenuItem item = menu.findItem(R.id.app_bar_search);

        SearchView searchView = (SearchView)item.getActionView();

        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                return false;
            }

            @Override
            public boolean onQueryTextChange(String newText) {

                customArrayAdapterForContact.getFilter().filter(newText);

                return true;
            }
        });

        return super.onCreateOptionsMenu(menu);

    }


}

过滤后

过滤后

点击后

点击后

标签： javaandroidarraylistandroid-arrayadaptercustom-arrayadapter

java - 使用 OnItemCLick 时 Android ArrayList 搜索过滤器更改索引

问题描述

解决方案

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