components/ActivityIndicator/examples/ActivityIndicatorExample.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 "MaterialActivityIndicator.h"
#import "MaterialActivityIndicator+ColorThemer.h"
#import "MaterialPalettes.h"
#import "supplemental/ActivityIndicatorExampleSupplemental.h"

#define MDC_CATALOG_BLACK [UIColor colorWithWhite:0.1f alpha:1]
#define MDC_CATALOG_GREY  [UIColor colorWithWhite:0.9f alpha:1]
#define MDC_CATALOG_GREEN [UIColor colorWithRed:0 green:0xe6/255.0f blue:0x76/255.0f alpha:1]

@interface ActivityIndicatorExample ()
@property(nonatomic, strong) MDCSemanticColorScheme *colorScheme;
@end

@implementation ActivityIndicatorExample

- (id)init {
  self = [super init];
  if (self) {
    self.title = @"Activity Indicator";
    self.colorScheme = [[MDCSemanticColorScheme alloc] init];
  }
  return self;
}

@end

@implementation ActivityIndicatorExample (CatalogByConvention)

- (void)viewDidLoad {
  [super viewDidLoad];
  self.view.backgroundColor = [UIColor whiteColor];

  // Themed determinate activity indicator
  self.activityIndicator1 = [[MDCActivityIndicator alloc] init];
  [MDCActivityIndicatorColorThemer applySemanticColorScheme:self.colorScheme
                                        toActivityIndicator:self.activityIndicator1];
  self.activityIndicator1.delegate = self;
  self.activityIndicator1.progress = 0.6f;
  self.activityIndicator1.indicatorMode = MDCActivityIndicatorModeDeterminate;
  [self.activityIndicator1 sizeToFit];
  [self.activityIndicator1 startAnimating];

  // Themed indeterminate activity indicator
  self.activityIndicator2 = [[MDCActivityIndicator alloc] init];
  self.activityIndicator2.delegate = self;
  [MDCActivityIndicatorColorThemer applySemanticColorScheme:self.colorScheme
                                        toActivityIndicator:self.activityIndicator2];
  [self.activityIndicator2 sizeToFit];
  [self.activityIndicator2 startAnimating];

  // Indeterminate activity indicator with custom colors.
  self.activityIndicator3 = [[MDCActivityIndicator alloc] init];
  self.activityIndicator3.delegate = self;
  self.activityIndicator3.cycleColors =  @[ [MDCPalette bluePalette].tint500,
                                            [MDCPalette redPalette].tint500,
                                            [MDCPalette greenPalette].tint500,
                                            [MDCPalette yellowPalette].tint500 ];
  [self.activityIndicator3 sizeToFit];
  [self.activityIndicator3 startAnimating];

  [self setupExampleViews];
}

#pragma mark - MDCActivityIndicatorDelegate

- (void)activityIndicatorAnimationDidFinish:(nonnull MDCActivityIndicator *)activityIndicator {
  return;
}

@end