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 = 0.f;
self.glowLayer.shadowOffset = CGSizeMake(0, 0);
self.glowLayer.shadowOpacity = 1.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 = @(0.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 = @(0.f);
self.glowLayer.opacity = 0.f;
animation.duration = [self accessAnimationDuration].floatValue;
[self.glowLayer addAnimation:animation forKey:nil];
}
- (void)startGlowLoop {
if (self.dispatchSource == nil) {
CGFloat seconds = [self accessAnimationDuration].floatValue * 2 + [self accessGlowDuration].floatValue + [self accessHideDuration].floatValue;
CGFloat delaySeconds = [self accessAnimationDuration].floatValue + [self accessGlowDuration].floatValue;
self.dispatchSource = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, dispatch_get_main_queue());
dispatch_source_set_timer(self.dispatchSource, dispatch_time(DISPATCH_TIME_NOW, 0), NSEC_PER_SEC * seconds, 0);
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 <= 0 || self.glowOpacity.floatValue > 1) {
return @(0.8);
} else {
return self.glowOpacity;
}
} else {
return @(0.8);
}
}
- (NSNumber *)accessGlowDuration {
if (self.glowDuration) {
if (self.glowDuration.floatValue <= 0) {
return @(0.5f);
} else {
return self.glowDuration;
}
} else {
return @(0.5f);
}
}
- (NSNumber *)accessHideDuration {
if (self.hideDuration) {
if (self.hideDuration.floatValue < 0) {
return @(0.5);
} else {
return self.hideDuration;
}
} else {
return @(0.5f);
}
}
- (NSNumber *)accessAnimationDuration {
if (self.glowAnimationDuration) {
if (self.glowAnimationDuration.floatValue <= 0) {
return @(1.f);
} else {
return self.glowAnimationDuration;
}
} else {
return @(1.f);
}
}
- (UIColor *)accessGlowColor {
if (self.glowColor) {
return self.glowColor;
} else {
return [UIColor redColor];
}
}
- (NSNumber *)accessGlowRadius {
if (self.glowRadius) {
if (self.glowRadius.floatValue <= 0) {
return @(2.f);
} else {
return self.glowRadius;
}
} else {
return @(2.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
