RCTSharedApplication()委托错误本机反应

时间:2017-05-12 16:49:50

标签: javascript ios objective-c facebook react-native

所以我对一般的本机和移动开发做出了相当新的反应,这个错误不断出现,有问题的测试文件是由Facebook提供的标准生成文件,具有反应原生构建。

以下是测试:

- (void)testRendersWelcomeScreen
   {
  UIViewController *vc = [[[RCTSharedApplication() delegate] window] rootViewController];
  NSDate *date = [NSDate dateWithTimeIntervalSinceNow:TIMEOUT_SECONDS];
  BOOL foundElement = NO;

  __block NSString *redboxError = nil;
  RCTSetLogFunction(^(RCTLogLevel level, RCTLogSource source, NSString *fileName, NSNumber *lineNumber, NSString *message) {
    if (level >= RCTLogLevelError) {
      redboxError = message;
    }
  });

  while ([date timeIntervalSinceNow] > 0 && !foundElement && !redboxError) {
    [[NSRunLoop mainRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]];
    [[NSRunLoop mainRunLoop] runMode:NSRunLoopCommonModes beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]];

    foundElement = [self findSubviewInView:vc.view matching:^BOOL(UIView *view) {
      if ([view.accessibilityLabel isEqualToString:TEXT_TO_LOOK_FOR]) {
        return YES;
      }
      return NO;
    }];
  }

  RCTSetLogFunction(RCTDefaultLogFunction);

  XCTAssertNil(redboxError, @"RedBox error: %@", redboxError);
  XCTAssertTrue(foundElement, @"Couldn't find element with text '%@' in %d seconds", TEXT_TO_LOOK_FOR, TIMEOUT_SECONDS);
}

这是错误:

redacted/ios/ProjectTests/Project.m:40:29: error: bad receiver type 'int'
  UIViewController *vc = [[[RCTSharedApplication() delegate] window] rootViewController];

该应用程序似乎实际上在iOS模拟器中编译和工作,所以我不确定问题是什么,显而易见的答案可能只是删除测试。但是我对可能的原因感兴趣,欢呼。

1 个答案:

答案 0 :(得分:0)

尝试重新安装依赖项:

$ rm -rf node_modules
$ npm i

我有同样的问题,它对我有用,因为我之前已经降级了一些不同分支的libs(检查:https://github.com/facebook/react-native/issues/13901)。