React Native提取调用在iOS上有效，但不能在Android上有效

Question

I can't seem to get the following fetch call to work on Android. It's not hitting the server and doesn't seem to be throwing any errors. The same code works on iOS. Do I have to do something special to enable network requests for Android on React Native? Thanks in advance.

export const login = function(user, success, error) {
        let path='http://localhost:3000/api/session';
        fetch(path, {
            method: 'POST',
            headers: {
                'Accept': 'application/json',
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({user: user})
        }).then((response) => {
            return response.json();
        }).then(success).catch(error);
    };

Answer 1

确保您在android/app/src/main中的AndroidManifest.xml中设置了以下权限

<uses-permission android:name="android.permission.INTERNET" />