The argument type 'List<ChatModel>' can't be assigned to the parameter type &#0-CodePudding

I'm a student and beginner to dart. I'm creating a simple chat functionality. I got solution to all my errors here, but not this one. I found some similar issue like mine, but they didn't help.

Expanded(
  child: ListView.builder(
    itemCount: widget.chatmodels.length,
    itemBuilder: (contex, index) =>
    ChatTile(chatModel:widget.chatmodels ), // I got the error here
  ),
),

The error is: The argument type 'List<ChatModel>' can't be assigned to the parameter type 'ChatModel'.

CodePudding user response：

You forgot to add the index, so the cycle goes through each item. Just add [index]:

Expanded(
  child: ListView.builder(
    itemCount: widget.chatmodels.length,
    itemBuilder: (context, index) =>
      ChatTile(chatModel:widget.chatmodels[index]), // Need to tell it to go to the specific item of the chat models
  ),
),

CodePudding user response：

Try to access each instance of your chatmodels using the index key which is available inside itemBuilder like below:

 Expanded(
    child: ListView.builder(
        itemCount: widget.chatmodels.length,
        itemBuilder: (contex, index) =>
            ChatTile(chatModel:widget.chatmodels[index]),
            ),
  ),