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