ios - Firebase 远程配置崩溃( objective-c iOS)

Question

我无法从 Firebase RemoteConfig 获取信息。在安装应用程序时，我在 MainController View Controller 之前有一个语言选择屏幕。在 MainController View Controller 上，我正在执行 RemoteConfig 提取。当语言选择屏幕显示在 MainController View Controller 之前时，它第一次起作用。但是，从下一次开始，它会在此特定行崩溃:

[self.remoteConfig fetchWithExpirationDuration:expirationDuration completionHandler:^(FIRRemoteConfigFetchStatus status, NSError *error) {

有以下异常(exception):

    *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSTaggedPointerString firstObject]: unrecognized selector sent to instance 0xa0000000000616a2'
*** First throw call stack:
(
    0   CoreFoundation                      0x000000010d20134b __exceptionPreprocess + 171
    1   libobjc.A.dylib                     0x000000010cc6221e objc_exception_throw + 48
    2   CoreFoundation                      0x000000010d270f34 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
    3   CoreFoundation                      0x000000010d186c15 ___forwarding___ + 1013
    4   CoreFoundation                      0x000000010d186798 _CF_forwarding_prep_0 + 120
    5   English                             0x0000000107f44e1b -[GIPLocale googleLanguageWithAppleLanguages:] + 33
    6   English                             0x0000000107f45396 -[GIPLocale recalculateLocale] + 54
    7   English                             0x0000000107f44c26 -[GIPLocale initWithLanguageMappings:] + 99
    8   English                             0x0000000107f44b77 __25+[GIPLocale googleLocale]_block_invoke + 41
    9   libdispatch.dylib                   0x000000010da900cd _dispatch_client_callout + 8
    10  libdispatch.dylib                   0x000000010da751fc dispatch_once_f + 501
    11  English                             0x0000000107f44b4c +[GIPLocale googleLocale] + 42
    12  English                             0x0000000107f42d06 +[RCNDevice deviceLocale] + 31
    13  English                             0x0000000107f43344 +[RCNDevice hasDeviceContextChanged:projectIdentifier:] + 325
    14  English                             0x0000000107f3e133 -[RCNConfigFetch fetchAllConfigsWithExpirationDuration:completionHandler:] + 150
    15  English                             0x0000000107f3577f -[FIRRemoteConfig fetchWithExpirationDuration:completionHandler:] + 77

更新:我是否显示语言选择屏幕并不重要。它始终适用于全新安装，并在下次启动时停止工作。

这是我正在使用的完整代码。

-(void)viewDidAppear:(BOOL)animated{
    //Display select language settings
    if (![[NSUserDefaults standardUserDefaults] boolForKey:DISPLAY_LANGUAGE_SETTING])
    {
        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
        [defaults  setBool:TRUE forKey:DISPLAY_LANGUAGE_SETTING];
        [defaults synchronize];
        //Display Language Screen
        AGSelectLanguageViewController *languageViewController =  [self.storyboard instantiateViewControllerWithIdentifier:@"AGSelectLanguageViewController"];
        self.modalPresentationStyle = UIModalPresentationFullScreen;
        [self presentViewController:languageViewController animated:NO completion:nil];
    }

  [self configFireBase];

}
  -(void)configFireBase{
        // Firebase Configuration
        self.remoteConfig = [FIRRemoteConfig remoteConfig];
       //Enabling development mode
        FIRRemoteConfigSettings *remoteConfigSettings = [[FIRRemoteConfigSettings alloc] initWithDeveloperModeEnabled:YES];
        self.remoteConfig.configSettings = remoteConfigSettings;

        //Set default Remote Config values
        [self.remoteConfig setDefaultsFromPlistFileName:@"RemoteConfigDefaults"];

        [self fetchConfig];
    }

- (void)fetchConfig {
    _discount_percentage = self.remoteConfig[DISCOUNT_PERCENTAGE].numberValue.floatValue;

    long expirationDuration = 3600;

    if (self.remoteConfig.configSettings.isDeveloperModeEnabled) {
        expirationDuration = 0;
    }


    [self.remoteConfig fetchWithExpirationDuration:expirationDuration completionHandler:^(FIRRemoteConfigFetchStatus status, NSError *error) {
        if (status == FIRRemoteConfigFetchStatusSuccess) {
            NSLog(@"Config fetched!");
            [self.remoteConfig activateFetched];
        } else {
            NSLog(@"Config not fetched");
            NSLog(@"Error %@", error.localizedDescription);
        }
    }];
}

我哪里错了？请帮忙。

Answer 1

GIPLocale 类在 Google 和 Apple 名称之间为区域设置做一些映射，作为其中的一部分，它从 NSUserDefaults 中提取应用程序的区域设置:

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSArray *languages = [defaults objectForKey:@"AppleLanguages"];

我猜某个地方的默认条目只是设置为字符串或类似字符串而不是数组 - 检查您是否在应用程序的任何位置引用该字符串。