android - 在 cloneWithRows 中 react native 传递数组

Question

我想将一个数组传递给 cloneWithRows 方法。下面是代码

export default class FirstReactNativeApp extends Component {

          constructor() {
            super();
            const ds = new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2});

          this.state = {
            modalVisible: false,
            todoText:'',
            todoListArray:['foo 1','foo 2'],
           dataSource: ds.cloneWithRows(this.state.todoListArray)

          };
        }

这是 ListView

<ListView
        dataSource={this.state.dataSource}
        renderRow={(rowData) => <Text>{JSON.stringify(rowData)</Text>}
/>

我遇到了错误undefined 不是一个对象(评估'_this.state.todoListArray')

我无法解决这个问题。请指导我!

谢谢

Answer 1

试试这个 -

constructor() {
  super();
  this.ds = new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2});

  this.state = {
    modalVisible: false,
    todoText:'',
    todoListArray:['foo 1','foo 2'],
  };
}

---

<ListView
        dataSource={this.ds.cloneWithRows(this.state.todoListArray)}
        renderRow={(rowData) => <Text>{JSON.stringify(rowData)</Text>}
/>