当使用来自 API 的响应时显示错误 在 null 上调用了 getter 'length'。接收方:null 尝试调用: 这里的长度是我的 API 代码
var url =
"https://domain.php";
var res;
var splashs;
void initState() {
super.initState();
fetchData();
}
fetchData() async {
res = await http.get(url);
splashs = jsonDecode(res.body);
setState(() {});
}
同时使用 List 然后代码正常工作
List<Map<String, String>> splashs = [
{
"header": "Flatros",
"text": "Welcome to Flatros, Let’s shop!",
"image_name": "assets/images/splash_1.png"
},
{
"header": "Shopping",
"text":
"We help people conect with store \naround United State of America",
"image_name": "assets/images/splash_2.png"
},
{
"header": "Multi Category",
"text": "FInal Screen",
"image_name": "assets/images/splash_3.png"
},
];