各位亲爱的朋友们，你们每天解锁iPhone，看到底部“滑动来解锁”这个效果，难道不好奇么？？？
那么好学的博主，今天在github上看到个库，facebook搞的，非常简单
的API就能完成你们看到的效果，这么酷炫掉渣天的效果，写出来拿给别人装装B那是再
好不过了
。
不BB了，先给你们facebook的库 传送门：点击打开链接
排排坐哈，看电影啦
老规矩，看图说话：
我去，这配图，我自己都觉得好看，我给满分，觉得好看的各位希望能给我顶一下
开始介绍
博主也是第一次尝试写这个东西，先来个Label玩玩
首先，导入库
platform:ios,‘7.0‘
target
‘FaceBookShimmer‘ do
pod
‘Shimmer‘
end
然后就开始撸代码
先展示上图中的三个Label 代码从上直下也是这个顺序
self.imageView = [[UIImageView alloc] init];
self.imageView.frame = self.view.bounds;
self.imageView.image = [UIImage imageNamed:@"Greg-Rakozy-1400x725.jpg"];
self.imageView.contentMode = UIViewContentModeScaleAspectFill;
[self.view addSubview:self.imageView];
// UIVisualEffectView *effectView = [[UIVisualEffectView alloc] initWithEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleDark]];
// effectView.frame = self.view.bounds;
// [self.imageView addSubview:effectView];
self.shimmeringView = [[FBShimmeringView alloc] initWithFrame:CGRectMake(0, 300, 375, 120)];
self.shimmeringView.shimmering = YES;
self.shimmeringView.shimmeringOpacity = 0.2;
self.shimmeringView.shimmeringBeginFadeDuration = 0.5;
self.shimmeringView.shimmeringSpeed = 200;
self.shimmeringView.shimmeringAnimationOpacity = 1.0;
[self.view addSubview:self.shimmeringView];
self.shimmerLabel = [[UILabel alloc] initWithFrame:self.shimmeringView.bounds];
self.shimmerLabel.text = @"JUST LIKE A DOG";
self.shimmerLabel.textColor = [UIColor whiteColor];
self.shimmerLabel.textAlignment = NSTextAlignmentCenter;
self.shimmerLabel.font = [UIFont fontWithName:@"HelveticaNeue-UltraLight" size:40.0];
self.shimmerLabel.backgroundColor = [UIColor clearColor];
self.shimmeringView.contentView = self.shimmerLabel;
self.shimmeringView2 = [[FBShimmeringView alloc] initWithFrame:CGRectMake(0, 100, 375, 120)];
self.shimmeringView2.shimmering = YES;
self.shimmeringView2.shimmeringOpacity = 0;
self.shimmeringView2.shimmeringBeginFadeDuration = 0.3;
self.shimmeringView2.shimmeringEndFadeDuration = 2;
self.shimmeringView2.shimmeringAnimationOpacity = 0.6;
[self.view addSubview:self.shimmeringView2];
self.shimmerLabel2 = [[UILabel alloc] initWithFrame:self.shimmeringView2.bounds];
self.shimmerLabel2.text = @"落霞与孤鹜齐飞";
self.shimmerLabel2.textColor = [UIColor redColor];
self.shimmerLabel2.textAlignment = NSTextAlignmentCenter;
self.shimmerLabel2.font = [UIFont boldSystemFontOfSize:40];
self.shimmerLabel2.backgroundColor = [UIColor clearColor];
self.shimmeringView2.contentView = self.shimmerLabel2;
self.shimmeringView3 = [[FBShimmeringView alloc] initWithFrame:CGRectMake(0, 200, 375, 120)];
self.shimmeringView3.shimmering = YES;
self.shimmeringView3.shimmeringOpacity = 0;
self.shimmeringView3.shimmeringDirection = FBShimmerDirectionLeft;
self.shimmeringView3.shimmeringBeginFadeDuration = 0.3;
self.shimmeringView3.shimmeringSpeed = 150;
[self.view addSubview:self.shimmeringView3];
self.shimmerLabel3 = [[UILabel alloc] initWithFrame:self.shimmeringView2.bounds];
self.shimmerLabel3.text = @"秋水共长天一色";
self.shimmerLabel3.textColor = [UIColor colorWithRed:255/255.0 green:194/255.0 blue:1/255.0 alpha:1];
self.shimmerLabel3.textAlignment = NSTextAlignmentCenter;
self.shimmerLabel3.font = [UIFont boldSystemFontOfSize:40];
self.shimmerLabel3.backgroundColor = [UIColor clearColor];
self.shimmeringView3.contentView = self.shimmerLabel3;
给大家加了所有字段的中文解释，自己测试出来的，有错误的请告知我
//! @abstract Set this to YES to start shimming and NO to stop. Defaults to NO.
// 是否闪烁
//@property (nonatomic, assign, readwrite, getter = isShimmering) BOOL shimmering;
//! @abstract The time interval between shimmerings in seconds. Defaults to 0.4.
// 两次闪烁之间的间隔
//@property (assign, nonatomic, readwrite) CFTimeInterval shimmeringPauseDuration;
//! @abstract The opacity of the content while it is shimmering. Defaults to 1.0.
// 闪烁时动画的透明度 1.0就是原始亮度 0-1之间随意选择
//@property (assign, nonatomic, readwrite) CGFloat shimmeringAnimationOpacity;
//! @abstract The opacity of the content before it is shimmering. Defaults to 0.5.
// 闪烁前的透明度，例如默认0.5，那么和上面那个参数对比下，就是0.5-1之间闪烁
//@property (assign, nonatomic, readwrite) CGFloat shimmeringOpacity;
//! @abstract The speed of shimmering, in points per second. Defaults to 230.
// 闪烁的速度
//@property (assign, nonatomic, readwrite) CGFloat shimmeringSpeed;
//! @abstract The highlight length of shimmering. Range of [0,1], defaults to 0.33.
// 闪烁过去的时候那条线的宽度 0 - 1之间的浮点数切换
//@property (assign, nonatomic, readwrite) CGFloat shimmeringHighlightLength;
//! @abstract @deprecated Same as "shimmeringHighlightLength", just for downward compatibility
// 和上面类似
//@property (assign, nonatomic, readwrite, getter = shimmeringHighlightLength, setter = setShimmeringHighlightLength:) CGFloat shimmeringHighlightWidth;
//! @abstract The direction of shimmering animation. Defaults to FBShimmerDirectionRight.
// 闪烁的方向，这个枚举有上下左右四个方向
//@property (assign, nonatomic, readwrite) FBShimmerDirection shimmeringDirection;
//! @abstract The duration of the fade used when shimmer begins. Defaults to 0.1.
// 开始闪烁的时间间隔
//@property (assign, nonatomic, readwrite) CFTimeInterval shimmeringBeginFadeDuration;
//! @abstract The duration of the fade used when shimmer ends. Defaults to 0.3.
// 结束闪烁的时间间隔
//@property (assign, nonatomic, readwrite) CFTimeInterval shimmeringEndFadeDuration;
/**
@abstract The absolute CoreAnimation media time when the shimmer will fade in.
@discussion Only valid after setting {@ref shimmering} to NO.
*/
// 闪烁到shimmeringAnimationOpacity的时候fade需要多久
//@property (assign, nonatomic, readonly) CFTimeInterval shimmeringFadeTime;
各自属性的默认值是这样的，需要的请自行修改即可
- (instancetype)init
{
self = [super init];
if (nil != self) {
// default configuration
_shimmeringPauseDuration = 0.4;
_shimmeringSpeed = 230.0;
_shimmeringHighlightLength = 1.0;
_shimmeringAnimationOpacity = 0.5;
_shimmeringOpacity = 1.0;
_shimmeringDirection = FBShimmerDirectionRight;
_shimmeringBeginFadeDuration = 0.1;
_shimmeringEndFadeDuration = 0.3;
}
return self;
}
就这么简单，设置自己喜欢的属性就好了，跑起来看看,效果已经给大家配好了，也可以自行尝试，肯定很酷炫
看到这里，大家有没有发现可以在项目中用到哪里呢？我是觉得可以用到这里，给头像加
一层闪烁，把_shimmingPauseDuration的默认值改为20秒或者各位随意
有想法就试试呗，代码如下
// 给图片加一个shimming
// 初始化
self.shimmeringView4 = [[FBShimmeringView alloc] initWithFrame:CGRectMake(140, 400, 80, 80)];
// 是否闪烁
self.shimmeringView4.shimmering = YES;
// 闪烁之前的透明度
self.shimmeringView4.shimmeringOpacity = 1;
// 从哪个方向闪烁
self.shimmeringView4.shimmeringDirection = FBShimmerDirectionLeft;
// 开始闪烁的时间
self.shimmeringView4.shimmeringBeginFadeDuration = 0.3;
// 一次周期的时间间隔
self.shimmeringView4.shimmeringPauseDuration = 3;
// 0-1之间，闪烁的线条间隔 由于给图片加，那么就要粗一点，好看点
self.shimmeringView4.shimmeringHighlightWidth = 0.9;
// 闪烁速度
self.shimmeringView4.shimmeringSpeed = 150;
self.shimmeringView4.layer.cornerRadius = 40;
self.shimmeringView4.clipsToBounds = YES;
self.shimmeringView4.backgroundColor = [UIColor whiteColor];
[self.view addSubview:self.shimmeringView4];
self.headImageView = [[UIImageView alloc] initWithFrame:self.shimmeringView4.bounds];
self.headImageView.image = [UIImage imageNamed:@"photo-1433878455169-4698e60005b1-1400x933.jpeg"];
self.headImageView.contentMode = UIViewContentModeScaleToFill;
self.headImageView.layer.cornerRadius = 40;
self.headImageView.clipsToBounds = YES;
// 用imageView加载到shimmering里面
self.shimmeringView4.contentView = self.headImageView;
注意：
self.shimmeringView4.backgroundColor = [UIColor
whiteColor];改方法默认是灰色的，这个闪烁的浮层就是灰色的，颜
色可以自己更改成喜欢的颜色，一般白色就很酷炫了
self.shimmeringView4.shimmeringHighlightWidth =
0.9; 0-1之间，闪烁的线条间隔 由于给图片加，那么就要粗一点，
篇幅大一点大气点
正如官方所说
Shimmer is an easy way to add a shimmering effect to any view in your app. It‘s useful as an unobtrusive loading indicator.
Shimmer was originally developed to show loading status in Paper.
对了，突然想到一点，可以用来做预加载指示器啊，各位可以尝试下，这里就不介绍了
就是这么的简单到没朋友啊
有需要的可以下载下来看看
Demo地址：https://github.com/DeftMKJ/FACEBOOKShimming
OVER ~~~~~~
时间： 2024-10-28 15:00:04