我有以下代码，用于静默登录用户
try {
result = await GoogleSignIn().signInSilently().catchError((x) {
print(x);
});
} catch (e) {
print(e);
}
如果用户无法静默登录，则会导致错误。
PlatformException (PlatformException(sign_in_required, com.google.android.gms.common.api.ApiException: 4: 4: , null))
我遇到的问题是我似乎无法捕获异常。 catchError 和 catch block 都没有被命中。我如何捕捉这个错误？
最佳答案
在您的方法中执行以下操作
try {
result = await GoogleSignIn().signInSilently(suppressErrors: false).catchError((x) {
print(x);
});
} catch (e) {
print(e);
}
默认情况下suppressErrors = true抑制您想要捕获的错误消息。
SignInSilently 方法用于抑制错误消息，从而不会抛出您想要捕获的异常。
从此方法的文档中:
/// When [suppressErrors] is set to `false` and an error occurred during sign in
/// returned Future completes with [PlatformException] whose `code` can be
/// either [kSignInRequiredError] (when there is no authenticated user) or
/// [kSignInFailedError] (when an unknown error occurred).
完整方法
/// Attempts to sign in a previously authenticated user without interaction.
///
/// Returned Future resolves to an instance of [GoogleSignInAccount] for a
/// successful sign in or `null` if there is no previously authenticated user.
/// Use [signIn] method to trigger interactive sign in process.
///
/// Authentication process is triggered only if there is no currently signed in
/// user (that is when `currentUser == null`), otherwise this method returns
/// a Future which resolves to the same user instance.
///
/// Re-authentication can be triggered only after [signOut] or [disconnect].
///
/// When [suppressErrors] is set to `false` and an error occurred during sign in
/// returned Future completes with [PlatformException] whose `code` can be
/// either [kSignInRequiredError] (when there is no authenticated user) or
/// [kSignInFailedError] (when an unknown error occurred).
Future<GoogleSignInAccount> signInSilently({bool suppressErrors = true}) {
final Future<GoogleSignInAccount> result = _addMethodCall('signInSilently');
if (suppressErrors) {
return result.catchError((dynamic _) => null);
}
return result;
}
引用
关于flutter - 如何捕获 GoogleSignInsignInSilently 中的错误？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56776203/