com.facebook.react.bridge.ReadableNativeMap无法转换为java.lang.Double [英] com.facebook.react.bridge.ReadableNativeMap cannot be cast to java.lang.Double

问题描述

am使用React的fetch()方法登录到我的服务.到目前为止，我已经完成了以下操作，您可以检查一下我的东西:

am using React's fetch() method to login in to my service. So far I have done as below, you can check out my stuffs :

_callApiForLogin = () => {
ToastAndroid.show('Logging In...', ToastAndroid.SHORT);

let data = new FormData();
data.append('username', "sssss");
data.append('password', "123456");
data.append('device_token', "hjkhjkhjkkksdkjhkjhksdsfs");
data.append('device_type', "2");

fetch('https://612.33.196.54/~yes/master/api/web/login', {

  method: 'POST',

  body: data,

}).then((response) => response.json())
  .then((responseJson) => {
    ToastAndroid.show('Logging In...', responseJson);
    if (responseJson.status === '1') {
      ToastAndroid.show('Logging Successful' + responseJson, ToastAndroid.SHORT);
    }
    return responseJson.status;
  })
  .catch((error) => {
    console.error(error);
  });
  }

但是，响应时低于错误.

But, getting below error in response.

错误:com.facebook.react.bridge.ReadableNativeMap无法转换为java.lang.Double

来自服务的响应如下:

{
    "status": 1,
    "data": {
        "id": "551",
        "first_name": "sssss",
        "last_name": "lastname",
        "email": "[e-mail]",
        "username": "sssss",
        "password": "e10adc83e",
        "photo": "",
        "birthdate": "1963-02-13",
        "gender": "",
        "token": "1234567890",
        "device_type": "2"
    },
    "message": "Successful Login"
}

可能是什么问题?

推荐答案

您正在使用 React Native Module 来显示 Toast ，即 ToastAndroid 因此您的错误 com.facebook.react.bridge.ReadableNativeMap .如此处所述的 show()方法接受转换为双精度的 duration 作为其第二个参数，在这种情况下，您传递的是 responseJson 这是一个对象，因此无法将其转换为双精度型.

You are using a React Native Module to show the Toast i.e. ToastAndroid hence com.facebook.react.bridge.ReadableNativeMap in your error. The show() method as described here accepts a duration which is converted into a double, as its second argument, in this case, you are passing responseJson which is an object thus it cannot be cast to a double.

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