GlowView
效果
说明
这是本人第二次写辉光view了，这是改进版本
源码
https://github.com/YouXianMing/UI-Component-Collection
//
// UIView+GlowView.h
// GlowView
//
// Created by YouXianMing on 15/7/4.
// Copyright (c) 2015年 YouXianMing. All rights reserved.
// #import <UIKit/UIKit.h> @interface UIView (GlowView) //
// == 动画时间解析 ==
//
// 0.0 ----------- 0.0 ------------> glowOpacity [---------------] glowOpacity ------------> 0.0
// T T T T
// | | | |
// | | | |
// . . . .
// hideDuration animationDuration glowDuration animationDuration
// #pragma mark - 设置辉光效果
/**
* 辉光的颜色
*/
@property (nonatomic, strong) UIColor *glowColor; /**
* 辉光的透明度
*/
@property (nonatomic, strong) NSNumber *glowOpacity; /**
* 辉光的阴影半径
*/
@property (nonatomic, strong) NSNumber *glowRadius; #pragma mark - 设置辉光时间间隔 /**
* 一次完整的辉光周期（从显示到透明或者从透明到显示），默认1s
*/
@property (nonatomic, strong) NSNumber *glowAnimationDuration; /**
* 保持辉光时间（不设置，默认为0.5s）
*/
@property (nonatomic, strong) NSNumber *glowDuration; /**
* 不显示辉光的周期（不设置默认为0.5s）
*/
@property (nonatomic, strong) NSNumber *hideDuration; #pragma mark - 辉光相关操作
/**
* 创建出辉光layer
*/
- (void)createGlowLayer; /**
* 插入辉光的layer
*/
- (void)insertGlowLayer; /**
* 移除辉光的layer
*/
- (void)removeGlowLayer; /**
* 显示辉光
*/
- (void)glowToshow; /**
* 隐藏辉光
*/
- (void)glowToHide; /**
* 开始循环辉光
*/
- (void)startGlowLoop; @end
//
// UIView+GlowView.m
// GlowView
//
// Created by YouXianMing on 15/7/4.
// Copyright (c) 2015年 YouXianMing. All rights reserved.
// #import "UIView+GlowView.h"
#import <objc/runtime.h> @interface UIView () @property (nonatomic, strong) CALayer *glowLayer;
@property (nonatomic, strong) dispatch_source_t dispatchSource; @end @implementation UIView (GlowView) - (void)createGlowLayer { UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, [UIScreen mainScreen].scale);
[self.layer renderInContext:UIGraphicsGetCurrentContext()];
UIBezierPath* path = [UIBezierPath bezierPathWithRect:self.bounds];
[[self accessGlowColor] setFill];
[path fillWithBlendMode:kCGBlendModeSourceAtop alpha:1.0]; self.glowLayer = [CALayer layer];
self.glowLayer.frame = self.bounds;
self.glowLayer.contents = (__bridge id)UIGraphicsGetImageFromCurrentImageContext().CGImage;
self.glowLayer.opacity = .f;
self.glowLayer.shadowOffset = CGSizeMake(, );
self.glowLayer.shadowOpacity = .f; UIGraphicsEndImageContext();
} - (void)insertGlowLayer { if (self.glowLayer) {
[self.layer addSublayer:self.glowLayer];
}
} - (void)removeGlowLayer { if (self.glowLayer) {
[self.glowLayer removeFromSuperlayer];
}
} - (void)glowToshow { self.glowLayer.shadowColor = [self accessGlowColor].CGColor;
self.glowLayer.shadowRadius = [self accessGlowRadius].floatValue; CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"opacity"]; animation.fromValue = @(.f);
animation.toValue = [self accessGlowOpacity];
self.glowLayer.opacity = [self accessGlowOpacity].floatValue;
animation.duration = [self accessAnimationDuration].floatValue; [self.glowLayer addAnimation:animation forKey:nil];
} - (void)glowToHide { self.glowLayer.shadowColor = [self accessGlowColor].CGColor;
self.glowLayer.shadowRadius = [self accessGlowRadius].floatValue; CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"opacity"]; animation.fromValue = [self accessGlowOpacity];
animation.toValue = @(.f);
self.glowLayer.opacity = .f;
animation.duration = [self accessAnimationDuration].floatValue; [self.glowLayer addAnimation:animation forKey:nil];
} - (void)startGlowLoop { if (self.dispatchSource == nil) { CGFloat seconds = [self accessAnimationDuration].floatValue * + [self accessGlowDuration].floatValue + [self accessHideDuration].floatValue;
CGFloat delaySeconds = [self accessAnimationDuration].floatValue + [self accessGlowDuration].floatValue; self.dispatchSource = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, , , dispatch_get_main_queue());
dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, ), NSEC_PER_SEC * seconds, );
dispatch_source_set_event_handler(self.dispatchSource, ^{ [self glowToshow]; dispatch_after(dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * delaySeconds), dispatch_get_main_queue(), ^{ [self glowToHide];
});
}); dispatch_resume(self.dispatchSource); }
} #pragma mark - 处理数据越界问题 - (NSNumber *)accessGlowOpacity { if (self.glowOpacity) { if (self.glowOpacity.floatValue <= || self.glowOpacity.floatValue > ) {
return @(0.8);
} else {
return self.glowOpacity;
} } else { return @(0.8);
}
} - (NSNumber *)accessGlowDuration { if (self.glowDuration) { if (self.glowDuration.floatValue <= ) {
return @(0.5f);
} else {
return self.glowDuration;
} } else { return @(0.5f);
}
} - (NSNumber *)accessHideDuration { if (self.hideDuration) { if (self.hideDuration.floatValue < ) {
return @(0.5);
} else {
return self.hideDuration;
}
} else { return @(0.5f);
}
} - (NSNumber *)accessAnimationDuration { if (self.glowAnimationDuration) { if (self.glowAnimationDuration.floatValue <= ) {
return @(.f);
} else {
return self.glowAnimationDuration;
} } else { return @(.f);
}
} - (UIColor *)accessGlowColor { if (self.glowColor) {
return self.glowColor;
} else {
return [UIColor redColor];
}
} - (NSNumber *)accessGlowRadius { if (self.glowRadius) { if (self.glowRadius.floatValue <= ) {
return @(.f);
} else {
return self.glowRadius;
}
} else {
return @(.f);
}
} /////////////////////////////////////////////////////////////////////////////////////////////// #pragma mark - runtime属性 NSString * const _recognizerDispatchSource = @"_recognizerDispatchSource";
- (void)setDispatchSource:(dispatch_source_t)dispatchSource { objc_setAssociatedObject(self, (__bridge const void *)(_recognizerDispatchSource), dispatchSource, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (dispatch_source_t)dispatchSource { return objc_getAssociatedObject(self, (__bridge const void *)(_recognizerDispatchSource));
} NSString * const _recognizerGlowColor = @"_recognizerGlowColor";
- (void)setGlowColor:(UIColor *)glowColor { objc_setAssociatedObject(self, (__bridge const void *)(_recognizerGlowColor), glowColor, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
} - (UIColor *)glowColor { return objc_getAssociatedObject(self, (__bridge const void *)(_recognizerGlowColor));
} NSString * const _recognizerGlowOpacity = @"_recognizerGlowOpacity";
- (void)setGlowOpacity:(NSNumber *)glowOpacity { objc_setAssociatedObject(self, (__bridge const void *)(_recognizerGlowOpacity), glowOpacity, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
} - (NSNumber *)glowOpacity { return objc_getAssociatedObject(self, (__bridge const void *)(_recognizerGlowOpacity));
} NSString * const _recognizerGlowRadius = @"_recognizerGlowRadius";
- (void)setGlowRadius:(NSNumber *)glowRadius { objc_setAssociatedObject(self, (__bridge const void *)(_recognizerGlowRadius), glowRadius, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
} - (NSNumber *)glowRadius { return objc_getAssociatedObject(self, (__bridge const void *)(_recognizerGlowRadius));
} NSString * const _recognizerGlowAnimationDuration = @"_recognizerGlowAnimationDuration";
- (void)setGlowAnimationDuration:(NSNumber *)glowAnimationDuration { objc_setAssociatedObject(self, (__bridge const void *)(glowAnimationDuration), _recognizerGlowAnimationDuration, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
} - (NSNumber *)glowAnimationDuration { return objc_getAssociatedObject(self, (__bridge const void *)(_recognizerGlowAnimationDuration));
} NSString * const _recognizerGlowDuration = @"_recognizerGlowDuration";
- (void)setGlowDuration:(NSNumber *)glowDuration { objc_setAssociatedObject(self, (__bridge const void *)(_recognizerGlowDuration), glowDuration, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
} - (NSNumber *)glowDuration { return objc_getAssociatedObject(self, (__bridge const void *)(_recognizerGlowDuration));
} NSString * const _recognizerHideDuration = @"_recognizerHideDuration";
- (void)setHideDuration:(NSNumber *)hideDuration { objc_setAssociatedObject(self, (__bridge const void *)(_recognizerHideDuration), hideDuration, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
} - (NSNumber *)hideDuration { return objc_getAssociatedObject(self, (__bridge const void *)(_recognizerHideDuration));
} NSString * const _recognizerGlowLayer = @"_recognizerGlowLayer";
- (void)setGlowLayer:(CALayer *)glowLayer { objc_setAssociatedObject(self, (__bridge const void *)(_recognizerGlowLayer), glowLayer, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
} - (CALayer *)glowLayer { return objc_getAssociatedObject(self, (__bridge const void *)(_recognizerGlowLayer));
} @end