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ButtonBarTypicalUseExample.m
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ButtonBarTypicalUseExample.m
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/*
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 "MaterialButtonBar.h"
#import "MaterialColorScheme.h"
#import "MaterialButtonBar+ColorThemer.h"
@interface ButtonBarTypicalUseExample : UIViewController
@property(nonatomic, strong) MDCSemanticColorScheme *colorScheme;
@end
@implementation ButtonBarTypicalUseExample
- (void)viewDidLoad {
[super viewDidLoad];
MDCButtonBar *buttonBar = [[MDCButtonBar alloc] init];
// MDCButtonBar ignores the style of UIBarButtonItem.
UIBarButtonItemStyle ignored = UIBarButtonItemStyleDone;
UIBarButtonItem *actionItem =
[[UIBarButtonItem alloc] initWithTitle:@"Action"
style:ignored
target:self
action:@selector(didTapActionButton:)];
UIBarButtonItem *secondActionItem =
[[UIBarButtonItem alloc] initWithTitle:@"Second action"
style:ignored
target:self
action:@selector(didTapActionButton:)];
buttonBar.items = @[ actionItem, secondActionItem ];
[MDCButtonBarColorThemer applySemanticColorScheme:self.colorScheme toButtonBar:buttonBar];
// 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 ButtonBarTypicalUseExample (CatalogByConvention)
+ (NSArray *)catalogBreadcrumbs {
return @[ @"Button Bar", @"Button Bar" ];
}
+ (BOOL)catalogIsPrimaryDemo {
return YES;
}
+ (NSString *)catalogDescription {
return @"The Button Bar is a view that represents a list of UIBarButtonItems as"
" horizontally-aligned buttons.";
}
@end
#pragma mark - Typical application code (not Material-specific)
@implementation ButtonBarTypicalUseExample (GeneralApplicationLogic)
- (id)init {
self = [super init];
if (self) {
self.title = @"Button Bar";
}
return self;
}
@end