我有一个Flutter应用程序,我使用远程配置来检索一些信息,但代码在获取数据时引发异常.
这是我设置远程配置的方法.
Future<RemoteConfig> setupRemoteConfig() async {
final RemoteConfig remoteConfig = await RemoteConfig.instance;
// Enable developer mode to relax fetch throttling
remoteConfig.setConfigSettings(RemoteConfigSettings(debugMode: true));
remoteConfig.setDefaults(<String, dynamic>{
'categories': "food,drink",
});
await remoteConfig.fetch(expiration: const Duration(hours: 5));
await remoteConfig.activateFetched();
return remoteConfig;
}
此代码抛出以下异常:
Exception: Unable to fetch remote config
在我的控制台中它说:
W/FirebaseRemoteConfig(10456): IPC failure: 6503:NOT_AVAILABLE
我怎样才能解决这个问题?
最佳答案 使用Try Catch包装你的fetch()和activateFetched()api调用
try {
// Using default duration to force fetching from remote server.
await remoteConfig.fetch(expiration: const Duration(seconds: 0));
await remoteConfig.activateFetched();
} on FetchThrottledException catch (exception) {
// Fetch throttled.
print(exception);
} catch (exception) {
print(
'Unable to fetch remote config. Cached or default values will be '
'used');
}
请参见此处的官方示例:https://github.com/flutter/plugins/blob/master/packages/firebase_remote_config/example/lib/main.dart