[控件] GlowView
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
