//
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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 "LBXScanLineAnimation.h"
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@interface LBXScanLineAnimation()
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{
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int num;
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BOOL down;
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NSTimer * timer;
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BOOL isAnimationing;
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}
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@property (nonatomic,assign) CGRect animationRect;
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@end
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@implementation LBXScanLineAnimation
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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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CGFloat leftx = _animationRect.origin.x + 5;
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CGFloat width = _animationRect.size.width - 10;
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self.frame = CGRectMake(leftx, _animationRect.origin.y + 8, width, 8);
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self.alpha = 0.0;
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self.hidden = NO;
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__weak __typeof(self) weakSelf = self;
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[UIView animateWithDuration:0.5 animations:^{
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weakSelf.alpha = 1.0;
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} completion:^(BOOL finished)
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{
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}];
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[UIView animateWithDuration:3 animations:^{
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CGFloat leftx = _animationRect.origin.x + 5;
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CGFloat width = _animationRect.size.width - 10;
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weakSelf.frame = CGRectMake(leftx, _animationRect.origin.y + _animationRect.size.height - 8, width, 4);
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} completion:^(BOOL finished)
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{
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self.hidden = YES;
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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)startAnimatingWithRect:(CGRect)animationRect InView:(UIView *)parentView Image:(UIImage*)image
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{
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if (isAnimationing) {
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return;
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}
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isAnimationing = YES;
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self.animationRect = animationRect;
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down = YES;
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num =0;
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CGFloat centery = CGRectGetMinY(animationRect) + CGRectGetHeight(animationRect)/2;
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CGFloat leftx = animationRect.origin.x + 5;
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CGFloat width = animationRect.size.width - 10;
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self.frame = CGRectMake(leftx, centery+2*num, width, 2);
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self.image = image;
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[parentView addSubview:self];
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[self startAnimating_UIViewAnimation];
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// [self startAnimating_NSTimer];
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}
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- (void)startAnimating_UIViewAnimation
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{
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[self stepAnimation];
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}
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- (void)startAnimating_NSTimer
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{
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timer = [NSTimer scheduledTimerWithTimeInterval:.02 target:self selector:@selector(scanLineAnimation) userInfo:nil repeats:YES];
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}
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-(void)scanLineAnimation
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{
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CGFloat centery = CGRectGetMinY(_animationRect) + CGRectGetHeight(_animationRect)/2;
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CGFloat leftx = _animationRect.origin.x + 5;
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CGFloat width = _animationRect.size.width - 10;
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if (down)
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{
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num++;
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self.frame = CGRectMake(leftx, centery+2*num, width, 2);
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if (centery+2*num > (CGRectGetMinY(_animationRect) + CGRectGetHeight(_animationRect) - 5 ) )
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{
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down = NO;
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}
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}
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else {
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num --;
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self.frame = CGRectMake(leftx, centery+2*num, width, 2);
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if (centery+2*num < (CGRectGetMinY(_animationRect) + 5 ) )
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{
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down = YES;
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}
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}
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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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if (isAnimationing) {
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isAnimationing = NO;
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if (timer) {
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[timer invalidate];
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timer = nil;
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}
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[self removeFromSuperview];
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}
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[NSObject cancelPreviousPerformRequestsWithTarget:self];
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}
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@end
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