Question

我有一个UITableView，它在加载屏幕时显示。 UITableView显示7个项目，因为dish数组包含7个项目。我有一个按钮，它增加了一个项目到菜肴阵列。

//再添加一个项目到数组 self.dishes.append（contentsOf：filteredArray）

                        let newIndexPath = IndexPath(row: self.dishes.count + 1, section: 0)
                        self.tableView.insertRows(at: [newIndexPath], with: .automatic)

添加新菜后，我收到以下错误：

'NSInternalInconsistencyException', reason: 'attempt to insert row 10 into section 0, but there are only 9 rows in section 0 after the update'
*** First throw call stack:

Answer 1

我希望看到更多的代码来了解你在做什么，但我认为你应该更多这样做。

signup() {
   this.setState({
     // When waiting for the firebase server show the loading indicator.
     loading: true
   });
   // Make a call to firebase to create a new user.
  this.props.firebaseApp.auth().createUserWithEmailAndPassword(this.state.email, this.state.password).then((userData) => {
   // then and catch are methods that we call on the Promise returned from
   // createUserWithEmailAndPassword
   Alert.alert('Success', 'Congrats!', [{text: 'OK!', onPress: this.dismiss}]);
   this.setState({
     // Clear out the fields when the user logs in and hide the progress indicator.
     email: '',
     password: '',
     loading: false
   });
   AsyncStorage.setItem('userData', JSON.stringify(userData));
   this.props.navigator.push({
     component: Account
   });
 }).catch((error) => {
     // Leave the fields filled when an error occurs and hide the progress indicator.
     this.setState({
       loading: false
     });
     Alert.alert('Ops', 'Error: ' + error.message, [{text: 'OK!', onPress: this.dismiss}]);
  });
}

Answer 2

最后一行索引是self.dishes.count而不添加1。

将UITableView与数组

2 个答案: