使用MDScratchImageView实现刮奖效果

使用MDScratchImageView实现刮奖效果

https://github.com/moqod/iOS-Scratch-n-See

最终效果:

其实这是使用了别人的东西而已:)

源码:

//
//  RootViewController.m
//  Scratch
//
//  Copyright (c) 2014年 Y.X. All rights reserved.
//

#import "RootViewController.h"
#import "MDScratchImageView.h"
#import "UIImage+ImageEffects.h"

@interface RootViewController ()

@end

@implementation RootViewController

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

    UIImage *image = [UIImage imageNamed:@"show"];

    // 背景图片
    UIImageView *blurImageView = \
        [[UIImageView alloc] initWithFrame:(CGRect){CGPointZero, image.size}];
    blurImageView.image        = image;
    blurImageView.center       = self.view.center;
    [self.view addSubview:blurImageView];

    // 被刮的图片
    MDScratchImageView *scratchImageView = \
        [[MDScratchImageView alloc] initWithFrame:(CGRect){CGPointZero, image.size}];
    [scratchImageView setImage:image
                        radius:.f];
    scratchImageView.center             = self.view.center;
    [self.view addSubview:scratchImageView];
}

@end