Magical Record 因此消息而崩溃

Question

默认上下文为零！你忘记初始化核心数据栈了吗？

+ (void)saveSplashImageData:(NSString*)data {
    NSManagedObjectContext *localContext = [NSManagedObjectContext MR_contextForCurrentThread];
    [SplashImage MR_truncateAllInContext:localContext];
    SplashImage *splashImage = [SplashImage MR_createInContext:localContext];
    splashImage.imageData = data;
    [localContext MR_saveOnlySelfAndWait];
}

+ (SplashImage*)loadSplashImage {
    NSManagedObjectContext *localContext = [NSManagedObjectContext MR_contextForCurrentThread];
    SplashImage *splashImage  = [SplashImage  MR_findFirstInContext:localContext];
    if (splashImage) {
        NSLog(@"Test");
    }
    return splashImage;
}

有人知道如何解决这个问题吗？

Answer 1

把它放在 AppDelegate.m 中就可以了。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    [MagicalRecord setupCoreDataStackWithStoreNamed:@"Flexi.sqlite"];
    return YES;
}