ios - Google Places iOS自动完成结果空间

Question

我尝试使用Google的Autocomplete API，并使用了本教程:
https://developers.google.com/places/ios-sdk/autocomplete#add_a_search_bar_to_the_top_of_a_view

我的viewDidLoad方法包含以下内容:

[super viewDidLoad];
// google autocomplete
_resultsViewController = [[GMSAutocompleteResultsViewController alloc] init];
_resultsViewController.delegate = self;
[_resultsViewController setExtendedLayoutIncludesOpaqueBars:YES];

_searchController = [[UISearchController alloc]
                     initWithSearchResultsController:_resultsViewController];
_searchController.searchResultsUpdater = _resultsViewController;

[_searchController setDelegate:self];

// When UISearchController presents the results view, present it in
// this view controller, not one further up the chain.
self.definesPresentationContext = YES;

// Prevent the navigation bar from being hidden when searching.
_searchController.hidesNavigationBarDuringPresentation = NO;

self.navigationController.navigationBar.translucent = NO;
_searchController.hidesNavigationBarDuringPresentation = NO;

self.extendedLayoutIncludesOpaqueBars = YES;
self.edgesForExtendedLayout = UIRectEdgeTop;
[_searchBarContainerView addSubview:_searchController.searchBar];

[_searchController setActive:YES];

但是它显示的结果类似于图像。如何删除结果和搜索栏之间的空间？

Answer 1

通过执行以下操作，我设法解决了这两个问题:

首先，将.automaticallyAdjustsScrollViewInsets实例的false设置为GMSAutocompleteResultsViewController():

resultsViewController.automaticallyAdjustsScrollViewInsets = false

如果您现在运行应用程序，将会看到多余的空间已消失，但是现在第一个结果在搜索栏的下方。为了解决这个问题，我使用了additionalSafeAreaInsets.top属性(尽管可以使用所需的任何值，但我建议将其设置为searchBarContainerView的高度):

resultsViewController.additionalSafeAreaInsets.top = searchBarContainer.frame.height

旁注:如果支持iOS 11之前的设备，则必须将这些行包装在#available检查中，因为additionalSafeAreaInsets仅在iOS 11+中可用。但是，在我自己的测试中，我发现iOS 10及更低版本没有这个问题。