components/ButtonBar/examples/ButtonBarCustomizedFontExample.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 "MaterialButtonBar.h"
#import "MaterialButtonBar+ColorThemer.h"
#import "MaterialButtonBar+TypographyThemer.h"

@interface ButtonBarCustomizedFontExample : UIViewController
@property(nonatomic, strong) MDCSemanticColorScheme *colorScheme;
@property(nonatomic, strong) MDCTypographyScheme *typographyScheme;
@end

@implementation ButtonBarCustomizedFontExample

- (id)init {
  self = [super init];
  if (self) {
    self.colorScheme = [[MDCSemanticColorScheme alloc] init];
    self.typographyScheme = [[MDCTypographyScheme alloc] init];
  }
  return self;
}

- (void)viewDidLoad {
  [super viewDidLoad];

  MDCButtonBar *buttonBar = [[MDCButtonBar alloc] init];

  self.typographyScheme.button = [UIFont fontWithName:@"American Typewriter" size:10.0f];
  [MDCButtonBarTypographyThemer applyTypographyScheme:self.typographyScheme toButtonBar:buttonBar];

  [MDCButtonBarColorThemer applySemanticColorScheme:self.colorScheme toButtonBar:buttonBar];

  // MDCButtonBar ignores the style of UIBarButtonItem.
  UIBarButtonItemStyle ignored = UIBarButtonItemStyleDone;

  UIBarButtonItem *actionItem =
      [[UIBarButtonItem alloc] initWithTitle:@"Disable"
                                       style:ignored
                                      target:self
                                      action:@selector(didTapActionButton:)];
  UIBarButtonItem *secondActionItem =
      [[UIBarButtonItem alloc] initWithTitle:@"Customization"
                                       style:ignored
                                      target:self
                                      action:@selector(didTapActionButton:)];

  buttonBar.items = @[ actionItem, secondActionItem ];

  // MDCButtonBar's sizeThatFits gives a "best-fit" size of the provided items.
  CGSize size = [buttonBar sizeThatFits:self.view.bounds.size];
  CGFloat x = (self.view.bounds.size.width - size.width) / 2;
  CGFloat y = self.view.bounds.size.height / 2 - size.height;
  buttonBar.frame = CGRectMake(x, y, size.width, size.height);
  buttonBar.autoresizingMask =
      (UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin |
       UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin);
  [self.view addSubview:buttonBar];

  // Ensure that the controller's view isn't transparent.
  self.view.backgroundColor = [UIColor colorWithWhite:0.9f alpha:1.0f];
}

#pragma mark - User actions

- (void)didTapActionButton:(id)sender {
  NSLog(@"Did tap action item: %@", sender);
}

@end

@implementation ButtonBarCustomizedFontExample (CatalogByConvention)

+ (NSArray *)catalogBreadcrumbs {
  return @[ @"Button Bar", @"Button Bar (Customized)" ];
}

+ (BOOL)catalogIsPrimaryDemo {
  return NO;
}

@end

#pragma mark - Typical application code (not Material-specific)

@implementation ButtonBarCustomizedFontExample (GeneralApplicationLogic)

- (id)init {
  self = [super init];
  if (self) {
    self.title = @"Button Bar";
  }
  return self;
}

@end