iOS 动画 CAGradientLayer、 CABasicAnimation~demo

//联系人:石虎 QQ:1224614774 昵称:嗡嘛呢叭咪哄

一、概念

/**

   1.此方法很简单,有操作视图和方法,动画效果参考~直接拷贝就可以实现

   2. 图片下面有, 代码可以任意修改变化不同的颜色显示,

   3.GIF 图请看CSDN:http://blog.csdn.net/shihuboke/article/details/79136364

 */

GIF图:

iPhone X

二、代码实现

//  ViewController.m

//  滑动解锁动画~demo

//

//  Created by joyshow on 2018/1/20.

//  Copyright © 2018年 石虎. All rights reserved.

//

#import "ViewController.h"

#define SHPageCount 2

#define KMainScreenH [UIScreen mainScreen].bounds.size.height

#define kMainScreenW [UIScreen mainScreen].bounds.size.width

@interface ViewController ()

//解锁 label

@property (nonatomic,strong)UILabel *unlockLabel;

@end

@implementation ViewController

- (void)viewDidLoad {

    [superviewDidLoad];

    [selfanimationUnlockLabel];

}

#pragma mark - 设置所有动画解锁方法

#pragma mark -

- (void)animationUnlockLabel

{

 // gradientLayer

 CAGradientLayer *gradientLayer = [CAGradientLayerlayer];

gradientLayer.frame = CGRectMake(0, 0, kMainScreenW, KMainScreenH);

gradientLayer.colors = @[(__bridge id)[UIColor redColor].CGColor,

(__bridge id)[UIColor yellowColor].CGColor,

(__bridge id)[UIColor purpleColor].CGColor];

gradientLayer.locations = @[@0.25,@0.5,@0.75];

gradientLayer.startPoint = CGPointMake(0, 0);

gradientLayer.endPoint = CGPointMake(1, 0);

[self.view.layeraddSublayer:gradientLayer];

 // 初始化 unlockLabel

 self.unlockLabel = [[UILabelalloc]initWithFrame:gradientLayer.bounds];

gradientLayer.mask = _unlockLabel.layer;

    [self.viewaddSubview:_unlockLabel];

 //执行动画 animation

 CABasicAnimation *animation = [CABasicAnimationanimationWithKeyPath:@"locations"];

animation.fromValue = @[@0,@0,@0.25];

animation.toValue = @[@0.75,@1,@1];

animation.repeatCount = MAXFLOAT;

animation.duration = 2.5f;

[gradientLayer addAnimation:animation forKey:nil];

}

@end

谢谢!!!