components/Typography/examples/TypographyMaterialStylesViewController.m

// Copyright 2015-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 "TypographyMaterialStylesViewController.h"

#import "MaterialTypography.h"

@implementation TypographyMaterialStyleViewController {
  NSArray<NSString *> *_strings;
  NSArray<NSString *> *_styleNames;
  NSArray<UIFont *> *_styleFonts;
}

- (void)viewDidLoad {
  [super viewDidLoad];

  self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;

  self.tableView.rowHeight = UITableViewAutomaticDimension;
  self.tableView.estimatedRowHeight = 50.0;

  _strings = @[
               @"Material Design Components",
               @"A quick brown fox jumped over the lazy dog.",
               @"ABCDEFGHIJKLMNOPQRSTUVWXYZ",
               @"abcdefghijklmnopqrstuvwxyz",
               @"1234567890",
               @"!@#$%^&*()-=_+[]\\;',./<>?:\""
               ];

  _styleNames = @[
                  // Common UI fonts.
                  @"Headline Font",
                  @"Headline Font (Dynamic Type-enabled)",
                  @"Title Font",
                  @"Title Font (Dynamic Type-enabled)",
                  @"Subhead Font",
                  @"Subhead Font (Dynamic Type-enabled)",
                  @"Body 2 Font",
                  @"Body 2 Font (Dynamic Type-enabled)",
                  @"Body 1 Font",
                  @"Body 1 Font (Dynamic Type-enabled)",
                  @"Caption Font",
                  @"Caption Font (Dynamic Type-enabled)",
                  @"Button Font",
                  @"Button Font (Dynamic Type-enabled)",

                  // Display fonts (extra large fonts)
                  @"Display 1 Font",
                  @"Display 1 Font (Dynamic Type-enabled)",
                  @"Display 2 Font",
                  @"Display 2 Font (Dynamic Type-enabled)",
                  @"Display 3 Font",
                  @"Display 3 Font (Dynamic Type-enabled)",
                  @"Display 4 Font",
                  @"Display 4 Font (Dynamic Type-enabled)"
                  ];

  _styleFonts = @[
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleHeadline],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleHeadline],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleTitle],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleTitle],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleSubheadline],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleSubheadline],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleBody2],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleBody2],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleBody1],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleBody1],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleCaption],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleCaption],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleButton],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleButton],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleDisplay1],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleDisplay1],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleDisplay2],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleDisplay2],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleDisplay3],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleDisplay3],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleDisplay4],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleDisplay4]
                  ];

  [[NSNotificationCenter defaultCenter] addObserver:self
                                           selector:@selector(contentSizeCategoryDidChange:)
                                               name:UIContentSizeCategoryDidChangeNotification
                                             object:nil];

  /*
  UIKIT_EXTERN const CGFloat UIFontWeightUltraLight NS_AVAILABLE_IOS(8_2);
  UIKIT_EXTERN const CGFloat UIFontWeightThin NS_AVAILABLE_IOS(8_2);
  UIKIT_EXTERN const CGFloat UIFontWeightLight NS_AVAILABLE_IOS(8_2);
  UIKIT_EXTERN const CGFloat UIFontWeightRegular NS_AVAILABLE_IOS(8_2);
  UIKIT_EXTERN const CGFloat UIFontWeightMedium NS_AVAILABLE_IOS(8_2);
  UIKIT_EXTERN const CGFloat UIFontWeightSemibold NS_AVAILABLE_IOS(8_2);
  UIKIT_EXTERN const CGFloat UIFontWeightBold NS_AVAILABLE_IOS(8_2);
  UIKIT_EXTERN const CGFloat UIFontWeightHeavy NS_AVAILABLE_IOS(8_2);
  UIKIT_EXTERN const CGFloat UIFontWeightBlack NS_AVAILABLE_IOS(8_2);
*/

  NSLog(@"UIFontWeightUltraLight %f", UIFontWeightUltraLight);
  NSLog(@"UIFontWeightThin %f", UIFontWeightThin);
  NSLog(@"UIFontWeightLight %f", UIFontWeightLight);
  NSLog(@"UIFontWeightRegular %f", UIFontWeightRegular);
  NSLog(@"UIFontWeightMedium %f", UIFontWeightMedium);
  NSLog(@"UIFontWeightSemibold %f", UIFontWeightSemibold);
  NSLog(@"UIFontWeightBold %f", UIFontWeightBold);
  NSLog(@"UIFontWeightHeavy %f", UIFontWeightHeavy);
  NSLog(@"UIFontWeightBlack %f", UIFontWeightBlack);

  UIFont *defaultFont = [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleBody1];
  NSLog (@"Font Family : %@", defaultFont.familyName);
}

- (void)contentSizeCategoryDidChange:(NSNotification *)notification {
  NSString *sizeCategory = notification.userInfo[UIContentSizeCategoryNewValueKey];
  NSLog(@"New size category : %@", sizeCategory);

  // Update font array to reflect new size category
  _styleFonts = @[
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleHeadline],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleHeadline],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleTitle],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleTitle],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleSubheadline],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleSubheadline],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleBody2],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleBody2],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleBody1],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleBody1],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleCaption],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleCaption],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleButton],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleButton],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleDisplay1],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleDisplay1],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleDisplay2],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleDisplay2],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleDisplay3],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleDisplay3],
                  [UIFont mdc_standardFontForMaterialTextStyle:MDCFontTextStyleDisplay4],
                  [UIFont mdc_preferredFontForMaterialTextStyle:MDCFontTextStyleDisplay4]
                  ];

  [self.tableView reloadData];
}

#pragma mark - UITableViewDataSource

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
  return _strings.count;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
  return _styleNames.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView
         cellForRowAtIndexPath:(NSIndexPath *)indexPath {
  UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:@"cell"];
  if (cell == nil) {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
                                  reuseIdentifier:@"cell"];
  }
  cell.textLabel.text = _strings[indexPath.section];
  cell.textLabel.font = _styleFonts[indexPath.row];
  cell.textLabel.numberOfLines = 0;
  cell.textLabel.lineBreakMode = NSLineBreakByWordWrapping;

  if (cell.textLabel.font.pointSize > 100 && indexPath.section == 0) {
    cell.textLabel.text = @"MDC";
  }

  cell.detailTextLabel.text = _styleNames[indexPath.row];
  cell.detailTextLabel.font = [UIFont preferredFontForTextStyle:UIFontTextStyleCaption1];

  cell.selectionStyle = UITableViewCellSelectionStyleNone;

  return cell;
}

#pragma mark - CatalogByConvention

+ (NSDictionary *)catalogMetadata {
  return @{
    @"breadcrumbs": @[ @"Typography and Fonts", @"Material Font Styles" ],
    @"primaryDemo": @NO,
    @"presentable": @NO,
  };
}

@end