//
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// LBXScanLineAnimation.m
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//
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//
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// Created by lbxia on 15/11/3.
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// Copyright © 2015年 lbxia. All rights reserved.
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//
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#import "LBXScanNetAnimation.h"
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@interface LBXScanNetAnimation()
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{
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BOOL isAnimationing;
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}
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@property (nonatomic,assign) CGRect animationRect;
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@property (nonatomic,strong) UIImageView *scanImageView;
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@end
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@implementation LBXScanNetAnimation
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- (instancetype)init{
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self = [super init];
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if (self) {
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self.clipsToBounds = YES;
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[self addSubview:self.scanImageView];
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}
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return self;
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}
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- (UIImageView *)scanImageView{
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if (!_scanImageView) {
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_scanImageView = [[UIImageView alloc] init];
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}
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return _scanImageView;
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}
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- (void)stepAnimation
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{
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if (!isAnimationing) {
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return;
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}
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self.frame = _animationRect;
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CGFloat scanNetImageViewW = self.frame.size.width;
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CGFloat scanNetImageH = self.frame.size.height;
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__weak __typeof(self) weakSelf = self;
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self.alpha = 0.5;
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_scanImageView.frame = CGRectMake(0, -scanNetImageH, scanNetImageViewW, scanNetImageH);
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[UIView animateWithDuration:1.4 animations:^{
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weakSelf.alpha = 1.0;
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_scanImageView.frame = CGRectMake(0, scanNetImageViewW-scanNetImageH, scanNetImageViewW, scanNetImageH);
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} completion:^(BOOL finished)
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{
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[weakSelf performSelector:@selector(stepAnimation) withObject:nil afterDelay:0.3];
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}];
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}
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- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag{
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[self performSelector:@selector(stepAnimation) withObject:nil afterDelay:0.3];
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}
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- (void)startAnimatingWithRect:(CGRect)animationRect InView:(UIView *)parentView Image:(UIImage*)image
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{
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[self.scanImageView setImage:image];
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self.animationRect = animationRect;
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[parentView addSubview:self];
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self.hidden = NO;
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isAnimationing = YES;
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[self stepAnimation];
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}
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- (void)dealloc
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{
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[self stopAnimating];
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}
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- (void)stopAnimating
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{
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self.hidden = YES;
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isAnimationing = NO;
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[NSObject cancelPreviousPerformRequestsWithTarget:self];
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}
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@end
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