material-components_material-components-ios/components/TextFields/examples/supplemental/TextFieldControllerStylesExampleSupplemental.m

// Copyright 2016-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 "TextFieldControllerStylesExampleSupplemental.h"

@implementation TextFieldControllerStylesExample (Supplemental)

- (void)setupExampleViews {
  [self setupScrollView];
}

- (void)setupScrollView {
  self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectZero];
  [self.view addSubview:self.scrollView];
  self.scrollView.translatesAutoresizingMaskIntoConstraints = NO;

  [NSLayoutConstraint
      activateConstraints:[NSLayoutConstraint
                              constraintsWithVisualFormat:@"V:|[scrollView]|"
                                                  options:0
                                                  metrics:nil
                                                    views:@{@"scrollView" : self.scrollView}]];
  [NSLayoutConstraint
      activateConstraints:[NSLayoutConstraint
                              constraintsWithVisualFormat:@"H:|[scrollView]|"
                                                  options:0
                                                  metrics:nil
                                                    views:@{@"scrollView" : self.scrollView}]];

  CGFloat marginOffset = 16;
  UIEdgeInsets margins = UIEdgeInsetsMake(0, marginOffset, 0, marginOffset);
  self.scrollView.layoutMargins = margins;

  UITapGestureRecognizer *tapRecognizer =
      [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapDidTouch)];
  [self.view addGestureRecognizer:tapRecognizer];
}

- (void)tapDidTouch {
  [self.view endEditing:YES];
}

@end

@implementation TextFieldControllerStylesExample (CatalogByConvention)

+ (NSDictionary *)catalogMetadata {
  return @{
    @"breadcrumbs" : @[ @"Text Field", @"Controller Styles" ],
    @"primaryDemo" : @NO,
    @"presentable" : @YES,
  };
}

@end