放大身份验证事件在 android 中不起作用

Question

我正在开发使用来自 AWS Amplify 库的身份验证的应用程序。 我试图通过查看 Amplify 的身份验证事件来检查登录状态，但它不起作用。 我试图用 logcat 进行验证，但它只显示了 fetch 的输出。

Amplify.Auth.fetchAuthSession(
    result -> Log.i("AmplifyQuickstart", result.toString()),
    error -> Log.e("AmplifyQuickstart", error.toString())
);

Amplify.Hub.subscribe(HubChannel.AUTH, hubEvent -> {
    if (hubEvent.getName().equals(InitializationStatus.SUCCEEDED.toString())) {
        Log.i("AuthQuickstart", "Auth successfully initialized");
    } else if (hubEvent.getName().equals(InitializationStatus.FAILED.toString())) {
        Log.i("AuthQuickstart", "Auth failed to succeed");
    } else {
        switch (AuthChannelEventName.valueOf(hubEvent.getName())) {
            case SIGNED_IN:
                Log.i("AuthQuickstart", "Auth just became signed in.");
                break;
            case SIGNED_OUT:
                Log.i("AuthQuickstart", "Auth just became signed out.");
                break;
            case SESSION_EXPIRED:
                Log.i("AuthQuickstart", "Auth session just expired.");
                break;
            default:
                Log.w("AuthQuickstart", "Unhandled Auth Event: " + AuthChannelEventName.valueOf(hubEvent.getName()));
                break;
        }
    }
});

Answer 1

我成功处理问题的一种方法是将错误 lambda 引用传递给errorAuthenticationHandle函数，如下所示：

Amplify.Auth.signIn(this.userName, password,
    result -> Log.i("AuthQuickstart", result.isSignInComplete() ?
        "Sign in succeeded" : "Sign in not complete"),
    this::errorAuthenticationHandle
);

private void errorAuthenticationHandle(AuthException error) {
    Log.e("AmplifyQuickstart", error.toString());

    switch (getErrorNumber(error)) {
        // Server require password reset
        case RESET:
            // Some code
            break;

        case FAILED:
            // Some code
            break;
    }
}