components/Ink/examples/InkTypicalUse.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 <UIKit/UIKit.h>

#import "MaterialInk.h"
#import "MaterialPalettes.h"

#import "supplemental/InkTypicalUseSupplemental.h"

@interface InkTypicalUseViewController () <MDCInkTouchControllerDelegate>

@property(nonatomic, strong) NSMutableArray *inkTouchControllers;  // MDCInkTouchControllers.

@end

@implementation InkTypicalUseViewController

- (void)viewDidLoad {
  [super viewDidLoad];

  UIColor *blueColor = [MDCPalette.bluePalette.tint500 colorWithAlphaComponent:0.2f];
  CGFloat spacing = 16;
  CGRect customFrame = CGRectMake(0, 0, 200, 200);
  CGRect legacyFrame = CGRectMake(spacing / 2, spacing / 2, CGRectGetWidth(customFrame) - spacing,
                                  CGRectGetHeight(customFrame) - spacing);

  // ExampleShapes is a custom UIView with several subviews of various shapes.
  self.shapes = [[ExampleShapes alloc] initWithFrame:customFrame];
  self.legacyShape = [[UIView alloc] initWithFrame:legacyFrame];

  [self setupExampleViews];

  _inkTouchControllers = [[NSMutableArray alloc] init];

  for (UIView *view in self.shapes.subviews) {
    MDCInkTouchController *inkTouchController = [[MDCInkTouchController alloc] initWithView:view];
    inkTouchController.delegate = self;
    inkTouchController.defaultInkView.inkColor = blueColor;
    inkTouchController.defaultInkView.usesLegacyInkRipple = NO;
    [inkTouchController addInkView];
    [_inkTouchControllers addObject:inkTouchController];
  }
  [self.view addSubview:self.shapes];

  MDCInkTouchController *inkTouchController =
      [[MDCInkTouchController alloc] initWithView:self.legacyShape];
  inkTouchController.delegate = self;
  inkTouchController.defaultInkView.inkColor = blueColor;
  [inkTouchController addInkView];
  [_inkTouchControllers addObject:inkTouchController];
  [self.view addSubview:self.legacyShape];
}

#pragma mark - Private

- (void)inkTouchController:(MDCInkTouchController *)inkTouchController
         didProcessInkView:(MDCInkView *)inkView
           atTouchLocation:(CGPoint)location {
  NSLog(@"InkTouchController %p did process ink view: %p at touch location: %@", inkTouchController,
        inkView, NSStringFromCGPoint(location));
}

@end