//
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// HMScannerBorder.m
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// HMQRCodeScanner
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//
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// Created by 刘凡 on 16/1/2.
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// Copyright © 2016年 itheima. All rights reserved.
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//
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#import "HMScannerBorder.h"
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@implementation HMScannerBorder {
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/// 冲击波图像
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UIImageView *scannerLine;
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}
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- (instancetype)initWithFrame:(CGRect)frame {
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self = [super initWithFrame:frame];
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if (self) {
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[self prepareUI];
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}
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return self;
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}
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#pragma mark - 扫描动画方法
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/// 开始扫描动画
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- (void)startScannerAnimating {
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[self stopScannerAnimating];
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[UIView animateWithDuration:3.0
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delay:0.0
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options:UIViewAnimationOptionCurveEaseInOut
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animations:^{
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[UIView setAnimationRepeatCount:MAXFLOAT];
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scannerLine.center = CGPointMake(self.bounds.size.width * 0.5, self.bounds.size.height);
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} completion:nil];
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}
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/// 停止扫描动画
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- (void)stopScannerAnimating {
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[scannerLine.layer removeAllAnimations];
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scannerLine.center = CGPointMake(self.bounds.size.width * 0.5, 0);
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}
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#pragma mark - 设置界面
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- (void)prepareUI {
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self.clipsToBounds = YES;
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// 图像文件包
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NSBundle *bundle = [NSBundle bundleForClass:[self class]];
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NSURL *url = [bundle URLForResource:@"HMScanner" withExtension:@"bundle"];
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NSBundle *imageBundle = [NSBundle bundleWithURL:url];
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// 冲击波图像
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scannerLine = [[UIImageView alloc] initWithImage:[self imageWithName:@"QRCodeScanLine" bundle:imageBundle]];
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scannerLine.frame = CGRectMake(0, 0, self.bounds.size.width, scannerLine.bounds.size.height);
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scannerLine.center = CGPointMake(self.bounds.size.width * 0.5, 0);
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[self addSubview:scannerLine];
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// 加载边框图像
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for (NSInteger i = 1; i < 5; i++) {
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NSString *imgName = [NSString stringWithFormat:@"ScanQR%zd", i];
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UIImageView *img = [[UIImageView alloc] initWithImage:[self imageWithName:imgName bundle:imageBundle]];
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[self addSubview:img];
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CGFloat offsetX = self.bounds.size.width - img.bounds.size.width;
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CGFloat offsetY = self.bounds.size.height - img.bounds.size.height;
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switch (i) {
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case 2:
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img.frame = CGRectOffset(img.frame, offsetX, 0);
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break;
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case 3:
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img.frame = CGRectOffset(img.frame, 0, offsetY);
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break;
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case 4:
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img.frame = CGRectOffset(img.frame, offsetX, offsetY);
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break;
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default:
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break;
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}
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}
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}
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- (UIImage *)imageWithName:(NSString *)imageName bundle:(NSBundle *)imageBundle {
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NSString *fileName = [NSString stringWithFormat:@"%@@2x", imageName];
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NSString *path = [imageBundle pathForResource:fileName ofType:@"png"];
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return [[UIImage imageWithContentsOfFile:path] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
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}
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@end
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