[翻译] JTSlideShadowAnimation

JTSlideShadowAnimation

效果图：

JTSlideShadowAnimation allow you to reproduce the famous "slide to unlock effect" on iOS.

JTSlideShadowAnimation能让你重现巨好看的“锁屏滑动辉光”效果

Usage - 使用

Basic usage - 基本使用方法

Just import JTSlideShadowAnimation.h.

只要引入 JTSlideShadowAnimation.h 文件即可

#import "JTSlideShadowAnimation.h"

@interface ViewController : UIViewController

@property (weak, nonatomic) IBOutlet UIButton *animatedView;

@property (strong, nonatomic) JTSlideShadowAnimation *shadowAnimation;

@end

Assign the view you want to animate and start the animation.

给你想要的view附上值，然后执行动画

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.shadowAnimation = [JTSlideShadowAnimation new];
    self.shadowAnimation.animatedView = self.animatedView;
}

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];

    [self.shadowAnimation start];
}

Customization - 定制

You can easily customize the animation.

你可以简单定制以下的一些属性

• shadowBackgroundColor
• shadowForegroundColor
• shadowWidth
• repeatCount
• duration

Example:

例子：

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.shadowAnimation = [JTSlideShadowAnimation new];
    self.shadowAnimation.animatedView = self.animatedView;

    self.shadowAnimation.shadowBackgroundColor = [UIColor colorWithWhite:0. alpha:.3];
    self.shadowAnimation.shadowForegroundColor = [UIColor blackColor];
    self.shadowAnimation.shadowWidth = 40.;
    self.shadowAnimation.repeatCount = 3;
    self.shadowAnimation.duration = 3.;

    [self.shadowAnimation start];
}

Requirements - 需要的环境

• iOS 7 or higher iOS7或者更高版本
• Automatic Reference Counting (ARC) ARC

Known Issues - 已知的问题

• Animation stop when the application go in background, you have to restart it manually 程序进入后台然后进入前台时，动画会被移除，需要你手动重新开启

Author - 作者

• Jonathan Tribouharet (@johntribouharet)

License - 声明

JTSlideShadowAnimation is released under the MIT license. See the LICENSE file for more info. 

JTSlideShadowAnimation基于MIT协议，你可以看看协议了解更多信息。

附录源码：

//
//  ViewController.m
//  ShowAnimation
//
//  Created by YouXianMing on 14/12/26.
//  Copyright (c) 2014年 YouXianMing. All rights reserved.
//

#import "ViewController.h"
#import "JTSlideShadowAnimation.h"

@interface ViewController ()

@property (strong, nonatomic) UIButton               *animatedView;
@property (strong, nonatomic) JTSlideShadowAnimation *shadowAnimation;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    // 设置背景图片
    UIImageView *imageView = [[UIImageView alloc] initWithFrame:self.view.bounds];
    imageView.image        = [UIImage imageNamed:@"background"];
    imageView.contentMode  = UIViewContentModeScaleAspectFill;
    [self.view addSubview:imageView];
    
    // 设置按钮
    self.animatedView    = [[UIButton alloc] initWithFrame:CGRectMake(0, 30, 320, 30)];
    self.animatedView.titleLabel.font = [UIFont fontWithName:@"HelveticaNeue-Thin"
                                                        size:20.f];
    [self.animatedView setTitle:@"YouXianMing NoZuoNoDie"
                       forState:UIControlStateNormal];
    [self.animatedView setTitleColor:[UIColor whiteColor]
                            forState:UIControlStateNormal];
    [self.view addSubview:self.animatedView];
    
    // 设置阴影
    self.shadowAnimation              = [JTSlideShadowAnimation new];
    self.shadowAnimation.animatedView = self.animatedView;
    [self.shadowAnimation start];
}

@end