RCLighting

RCLighting

https://github.com/RidgeCorn/RCLighting

效果:

真机测试的效率:

看了源码,其实原理很简单:

================================

1. 实现UIView的category

2. 继承了一个CALayer

3. 将这个继承的CALayer插入到UIView的subLayer中

4. 对这个layer进行动画操作

================================

源码:

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

#import "RootViewController.h"
#import "RCLighting.h"

@interface RootViewController ()

@end

@implementation RootViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor blackColor];
    
    // 辉光view
    UIView *showView          = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 50)];
    showView.alpha            = 0.8f;
    showView.backgroundColor  = [UIColor redColor];
    showView.center           = self.view.center;
    [self.view addSubview:showView];
    [showView showLightingWithColors:@[[UIColor brownColor],
                                       [UIColor greenColor],
                                       [UIColor cyanColor],
                                       [UIColor orangeColor],
                                       [UIColor purpleColor],
                                       [UIColor magentaColor],
                                       [UIColor redColor],
                                       [UIColor yellowColor],
                                       [UIColor blueColor]]];
    
    // 中间显示字体
    UILabel *label      = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 300, 100)];
    label.textAlignment = NSTextAlignmentCenter;
    label.textColor     = [UIColor whiteColor];
    label.font          = [UIFont fontWithName:@"HelveticaNeue-UltraLight"
                                          size:30.f];
    label.text          = @"YouXianMing";
    label.center        = self.view.center;
    [self.view addSubview:label];
}

@end

注意哦,源码中有用到POP库动画