列表视图和自定义适配器：textview的资源ID

Question

我正在尝试使用自定义适配器实现自己的ListView设计。但每当我运行我的程序时，我都会收到此错误“ArrayAdapter：您必须为TextView提供资源ID”。

这是我的自定义适配器

  public class LayoutAdapter extends ArrayAdapter {

        List list = new ArrayList();

        public LayoutAdapter (Context context, int resource) {
            super(context,resource);
        }

        static class DataHandler {
            TextView accountName;
            TextView availableBalance;
            TextView totalBalance;
        }

        @Override
        public void add(Object object) {
            super.add(object);
            list.add(object);
        }

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

        @Nullable
        @Override
        public Object getItem(int position) {
            return this.list.get(position);
        }

        @Override
        public View getDropDownView(int position, View convertView, ViewGroup parent) {

            View row;
            row = convertView;
            DataHandler handler;
            if(convertView == null) {
                LayoutInflater inflater = (LayoutInflater)this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                row = inflater.inflate(R.layout.custom_layout,parent,false);
                handler = new DataHandler();
                handler.accountName = (TextView) row.findViewById(R.id.account_name);
                handler.availableBalance = (TextView) row.findViewById(R.id.available_balance);
                handler.totalBalance = (TextView) row.findViewById(R.id.total_balance);
                row.setTag(handler);
            }
            else {
                handler = (DataHandler)row.getTag();
            }

            Account account;
            account = (Account)this.getItem(position);
            handler.accountName.setText(account.returnName());
            handler.availableBalance.setText("Available Balance: $"+account.returnAvailableBalance());
            handler.totalBalance.setText("Total Balance: $"+account.returnTotalBalance());

            return row;
        }
}

这是我的custom_layout.xml

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout  xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="@android:color/transparent"
    android:padding="8dp">

    <TextView
        android:text="@string/str_account_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/account_name"
        android:height="80dp"
        android:textSize="24sp"
        android:gravity="center_vertical" />

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentTop="true"
        android:layout_alignParentStart="true"
        android:layout_alignBottom="@+id/account_name">

        <TextView
            android:text="@string/str_available_balance"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/available_balance"
            android:textSize="16sp"
            android:layout_gravity="right"
            android:paddingTop="30dp" />

        <TextView
            android:text="@string/str_total_balance"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/total_balance"
            android:textSize="16sp"
            android:layout_gravity="right" />
    </LinearLayout>
</RelativeLayout >

这是我的主要活动

LayoutAdapter adapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main_screen);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);


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

    adapter = new LayoutAdapter(getApplicationContext(),R.layout.custom_layout);
    ArrayList<Account> accounts = new ArrayList<>();
    accounts.add(new Account ("Checking",5.00));
    accounts.add(new Account ("Cash",50.00));

    Account acc1 = new Account("Checking",5.00);
    Account acc2 = new Account("Cash",50.00);

    adapter.add(acc1);
    adapter.add(acc2);

    listView.setAdapter(adapter);