flutter - 访问 API 响应并在单击按钮时打印它？

Question

在登录 API 中它返回响应，我想在按钮 onclick 中获取响应并打印它。

我该怎么做？

   onTap: () async => {
           await propertyBloc.fetchAllCategory();

           <some code>

          },

Answer 1

要完成你的任务，你必须需要做这些事情:

1. 调用API并获取响应
2. 点击打印

1. 要获得响应，您必须导入 http package ，然后执行此操作:

制作一个给出响应的方法:

import 'package:http/http.dart' as http;

Future<http.Response> fetchData() async {
  final response =
      await http.get(your_url);

  if (response.statusCode == 200) {
    // If server returns an OK response, parse the JSON.
    return json.decode(response.body);
  } else {
    // If that response was not OK, throw an error.
    throw Exception('Failed to load post');
  }
}

2.

//Call the function on tap of the button, which will return the data
onTap: (){this.fetchData();}

希望对您有所帮助。 :)