components/AppBar/examples/AppBarWrappedExample.m

// 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 "MaterialAppBar+ColorThemer.h"
#import "MaterialAppBar.h"
#import "MaterialAppBar+TypographyThemer.h"
#import "MaterialFlexibleHeader.h"
#import "MaterialColorScheme.h"
#import "MaterialTypographyScheme.h"

@interface WrappedDemoViewController : UIViewController
@end

@implementation WrappedDemoViewController

- (void)viewDidLoad {
  [super viewDidLoad];

  self.title = @"Wrapped App Bar";

  self.view.backgroundColor = [UIColor colorWithWhite:(CGFloat)0.95 alpha:1];

  UILabel *label = [[UILabel alloc] init];
  label.text = @"Wrapped UIViewController";
  [self.view addSubview:label];

  [label sizeToFit];
  label.center = self.view.center;
}

@end

@interface AppBarWrappedExample : UIViewController

@property(nonatomic, strong) MDCAppBarContainerViewController *appBarContainerViewController;
@property(nonatomic, strong) MDCSemanticColorScheme *colorScheme;
@property(nonatomic, strong) MDCTypographyScheme *typographyScheme;

@end

@implementation AppBarWrappedExample

- (void)viewDidLoad {
  [super viewDidLoad];

  WrappedDemoViewController *demoVC = [[WrappedDemoViewController alloc] init];
  self.appBarContainerViewController =
      [[MDCAppBarContainerViewController alloc] initWithContentViewController:demoVC];

  // Common behavioral flags.
  MDCAppBarViewController *appBarViewController =
      self.appBarContainerViewController.appBarViewController;
  appBarViewController.inferTopSafeAreaInsetFromViewController = YES;
  appBarViewController.headerView.minMaxHeightIncludesSafeArea = NO;
  self.appBarContainerViewController.topLayoutGuideAdjustmentEnabled = YES;

  [MDCAppBarColorThemer applyColorScheme:self.colorScheme
                  toAppBarViewController:self.appBarContainerViewController.appBarViewController];
  [MDCAppBarTypographyThemer
       applyTypographyScheme:self.typographyScheme
      toAppBarViewController:self.appBarContainerViewController.appBarViewController];

  // Need to update the status bar style after applying the theme.
  [self setNeedsStatusBarAppearanceUpdate];

  [self addChildViewController:self.appBarContainerViewController];
  self.appBarContainerViewController.view.frame = self.view.bounds;
  [self.view addSubview:self.appBarContainerViewController.view];
  [self.appBarContainerViewController didMoveToParentViewController:self];
}

- (UIViewController *)childViewControllerForStatusBarStyle {
  return self.appBarContainerViewController;
}

@end

@implementation AppBarWrappedExample (CatalogByConvention)

+ (NSDictionary *)catalogMetadata {
  return @{
    @"breadcrumbs" : @[ @"App Bar", @"Wrapped" ],
    @"primaryDemo" : @NO,
    @"presentable" : @YES,
  };
}

- (BOOL)catalogShouldHideNavigation {
  return YES;
}

@end