StreamBuilder 颤动句柄 ConnectionState.waiting

Question

如何在导航后看到流生成器的最后数据而不是 CircularProgressIndicator 等待状态？

我想它会和 initialData 但我该怎么做

Answer 1

你必须有 initialData 到 StreamBuilder，为此要么传递硬编码值，要么传递你在使用 StreamBuilder

之前从网络获得的任何值

例如：

StreamBuilder(
    stream: signUpBloc.outFirstName,
    initialData: YourData, 
    builder: (context, snapshot) {
      _controller.value = TextEditingValue(text: "${snapshot.data}"); // assign value to controller this way
      return TextField(
        controller: _controller,
        onChanged: signUpBloc.inFirstName,
      );
    },
  );

StreamBuilder 颤动句柄 ConnectionState.waiting

StreamBuilder flutter handle ConnectionState.waiting

flutter

stream-builder