| // Copyright 2018-present the Material Components for iOS authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #import <UIKit/UIKit.h> |
| #import <WebKit/WebKit.h> |
| |
| #import "MaterialAppBar.h" |
| #import "MaterialAppBar+ColorThemer.h" |
| #import "MaterialAppBar+TypographyThemer.h" |
| |
| // This demonstrates that a WKWebView with large content as the tracking scroll view is able to |
| // scroll as expected, even without the useAdditionalSafeAreaInsetsForWebKitScrollViews flag |
| // enabled. |
| |
| @interface AppBarWKWebViewLargeContentNoBugExample : UIViewController |
| |
| @property(nonatomic, strong) MDCAppBar *appBar; |
| @property(nonatomic, strong) MDCSemanticColorScheme *colorScheme; |
| @property(nonatomic, strong) MDCTypographyScheme *typographyScheme; |
| |
| @end |
| |
| @implementation AppBarWKWebViewLargeContentNoBugExample |
| |
| - (void)dealloc { |
| // Required for pre-iOS 11 devices because we've enabled observesTrackingScrollViewScrollEvents. |
| self.appBar.headerViewController.headerView.trackingScrollView = nil; |
| } |
| |
| - (id)init { |
| self = [super init]; |
| if (self) { |
| self.title = @"App Bar"; |
| |
| _appBar = [[MDCAppBar alloc] init]; |
| |
| // Behavioral flags. |
| _appBar.inferTopSafeAreaInsetFromViewController = YES; |
| _appBar.headerViewController.topLayoutGuideViewController = self; |
| _appBar.headerViewController.headerView.minMaxHeightIncludesSafeArea = NO; |
| _appBar.headerViewController.headerView.observesTrackingScrollViewScrollEvents = YES; |
| |
| [self addChildViewController:_appBar.headerViewController]; |
| |
| _appBar.navigationBar.inkColor = [UIColor colorWithWhite:(CGFloat)0.9 alpha:(CGFloat)0.1]; |
| |
| self.colorScheme = |
| [[MDCSemanticColorScheme alloc] initWithDefaults:MDCColorSchemeDefaultsMaterial201804]; |
| self.typographyScheme = [[MDCTypographyScheme alloc] init]; |
| } |
| return self; |
| } |
| |
| - (void)viewDidLoad { |
| [super viewDidLoad]; |
| |
| [MDCAppBarColorThemer applySemanticColorScheme:self.colorScheme toAppBar:_appBar]; |
| [MDCAppBarTypographyThemer applyTypographyScheme:self.typographyScheme toAppBar:_appBar]; |
| |
| // Need to update the status bar style after applying the theme. |
| [self setNeedsStatusBarAppearanceUpdate]; |
| |
| WKWebViewConfiguration *config = [[WKWebViewConfiguration alloc] init]; |
| WKWebView *webView = [[WKWebView alloc] initWithFrame:self.view.bounds configuration:config]; |
| webView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight); |
| [self.view addSubview:webView]; |
| |
| NSMutableArray *content = [@[@"<html>\n<head></head><body>"] mutableCopy]; |
| for (NSInteger ix = 0; ix < 500; ++ix) { |
| [content addObject:@"<p>Hello</p>"]; |
| } |
| [content addObject:@"</body></html>"]; |
| [webView loadHTMLString:[content componentsJoinedByString:@"\n"] baseURL:nil]; |
| |
| self.appBar.headerViewController.headerView.trackingScrollView = webView.scrollView; |
| [self.appBar addSubviewsToParent]; |
| } |
| |
| - (UIViewController *)childViewControllerForStatusBarHidden { |
| return self.appBar.headerViewController; |
| } |
| |
| - (UIViewController *)childViewControllerForStatusBarStyle { |
| return self.appBar.headerViewController; |
| } |
| |
| - (void)viewWillAppear:(BOOL)animated { |
| [super viewWillAppear:animated]; |
| |
| [self.navigationController setNavigationBarHidden:YES animated:animated]; |
| } |
| |
| @end |
| |
| @implementation AppBarWKWebViewLargeContentNoBugExample (CatalogByConvention) |
| |
| + (NSDictionary *)catalogMetadata { |
| return @{ |
| @"breadcrumbs": @[ @"App Bar", @"WKWebView large content no bug" ], |
| @"primaryDemo": @NO, |
| @"presentable": @NO, |
| }; |
| } |
| |
| - (BOOL)catalogShouldHideNavigation { |
| return YES; |
| } |
| |
| @end |
