React Native Fetch在Android上不起作用

Question

fetch("http://httpbin.org/post")
   .then(response => response.json())
   .then(responseData => {})
   .catch(error => {
   Alert.alert("error:" + error);
});

I am trying to get fetches to work on Android. The sample code above get's called, however, it alerts "error:TypeError: Network request failed".

I have the INTERNET permission set in my Android manifest file. Not really sure what else to do. Is there a way I can find out the reason for the error?

EDIT When debugging, status is 0, timeout is 0, response is null, responseURL is undefined, and responseType is blob.

Answer 1

http是您的问题...需要https

Answer 2

Adding this to Manifest file solved my issue in Android 9

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">



    <application android:usesCleartextTraffic="true" tools:targetApi="28" />