huaxun/LekangGuard/Home/MoreService (更多功能)/QRCodeMsgViewController.m

//
//  QRCodeMsgViewController.m
//  LekangGuard
//
//  Created by ecell on 2022/12/7.
//

#import "QRCodeMsgViewController.h"
#import <CoreImage/CoreImage.h>

@interface QRCodeMsgViewController ()


@end

@implementation QRCodeMsgViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.zx_navTitle = GJText(@"二维码");
    
    UIView *bgView = [UICommon ui_view:CGRectZero backgroundColor:KKWhiteColorColor cornerRadius:3 borderWidth:0 borderColor:KKClearColor];
    [self.view addSubview:bgView];
    [bgView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.view).offset(iPhoneX_NavHeight+Adapted(20));
        make.left.right.equalTo(self.view).inset(Adapted(20));
        make.height.mas_equalTo(SCREEN_WIDTH+Adapted(40));
    }];
    
    UIImageView *qrCodeImg = [UIImageView new];
    qrCodeImg.image = [self createNonInterpolatedUIImageFormCIImage:APIManager.sharedManager.deviceModel.imei withSize:SCREEN_WIDTH-Adapted(120)];
    [bgView addSubview:qrCodeImg];
    [qrCodeImg mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.equalTo(bgView).inset(Adapted(40));
        make.top.equalTo(bgView).offset(Adapted(25));
        make.height.mas_equalTo(SCREEN_WIDTH-Adapted(120));
    }];
    
    UILabel *imeiLabel = [UICommon ui_label:CGRectZero lines:0 align:NSTextAlignmentLeft font:FontADA_(13) textColor:KKTextBlackColor text:@"" Radius:0];
    imeiLabel.text = F(@"IMEI/MEID:%@", APIManager.sharedManager.deviceModel.imei);
    [bgView addSubview:imeiLabel];
    [imeiLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self.view);
        make.top.equalTo(qrCodeImg.mas_bottom).offset(Adapted(10));
    }];
    
    
    UILabel *tiLabel = [UICommon ui_label:CGRectZero lines:0 align:NSTextAlignmentLeft font:FontADA_(13) textColor:KKGrey121 text:@"" Radius:0];
    tiLabel.text = GJText(@"扫一扫二维码,关注我");
    [bgView addSubview:tiLabel];
    [tiLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self.view).offset(Adapted(25)+8);
        make.bottom.equalTo(bgView.mas_bottom).inset(Adapted(45));
    }];
    
    UILabel *nameLabel = [UICommon ui_label:CGRectZero lines:0 align:NSTextAlignmentLeft font:FontADA_(15) textColor:KKTextBlackColor text:@"" Radius:0];
    nameLabel.text = APIManager.sharedManager.deviceModel.name;
    [bgView addSubview:nameLabel];
    [nameLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(tiLabel.mas_left);
        make.bottom.equalTo(tiLabel.mas_top).inset(10);
    }];
    
    UIImageView *iconImg = [UIImageView new];
    [bgView addSubview:iconImg];
    [iconImg mas_makeConstraints:^(MASConstraintMaker *make) {
        make.bottom.equalTo(tiLabel.mas_bottom).offset(5);
        make.right.equalTo(tiLabel.mas_left).inset(8);
        make.size.mas_equalTo(CGSizeMake(Adapted(50), Adapted(50)));
    }];
    
    if (APIManager.sharedManager.deviceModel.image.length <= 0)
        iconImg.image = ImageName_(APIManager.sharedManager.deviceModel.sex == 2 ? @"icon_head_girl" : @"icon_head_boy");
    else
        [iconImg sd_setImageWithURL:[NSURL URLWithString:APIManager.sharedManager.deviceModel.image] placeholderImage:ImageName_(APIManager.sharedManager.deviceModel.sex == 2 ? @"icon_head_girl" : @"icon_head_boy")];
    
    
    
}

/**
 *  根据CIImage生成指定大小的UIImage
 *
 *  @param imageStr 生成的图片内容
 *  @param size  图片宽度
 */
- (UIImage *)createNonInterpolatedUIImageFormCIImage:(NSString *)imageStr withSize:(CGFloat)size
{
    CIFilter *filter =  [CIFilter filterWithName:@"CIQRCodeGenerator"];
    [filter setDefaults];
    NSData *data = [imageStr dataUsingEncoding:NSUTF8StringEncoding];
    [filter setValue:data forKeyPath:@"inputMessage"];
    //输出图片
    CIImage *image = [filter outputImage];
    
    CGRect extent = CGRectIntegral(image.extent);
    CGFloat scale = MIN(size/CGRectGetWidth(extent), size/CGRectGetHeight(extent));
    
    // 1.创建bitmap;
    size_t width = CGRectGetWidth(extent) * scale;
    size_t height = CGRectGetHeight(extent) * scale;
    CGColorSpaceRef cs = CGColorSpaceCreateDeviceGray();
    CGContextRef bitmapRef = CGBitmapContextCreate(nil, width, height, 8, 0, cs, (CGBitmapInfo)kCGImageAlphaNone);
    CIContext *context = [CIContext contextWithOptions:nil];
    CGImageRef bitmapImage = [context createCGImage:image fromRect:extent];
    CGContextSetInterpolationQuality(bitmapRef, kCGInterpolationNone);
    CGContextScaleCTM(bitmapRef, scale, scale);
    CGContextDrawImage(bitmapRef, extent, bitmapImage);
    
    // 2.保存bitmap到图片
    CGImageRef scaledImage = CGBitmapContextCreateImage(bitmapRef);
    CGContextRelease(bitmapRef);
    CGImageRelease(bitmapImage);
    
    return [UIImage imageWithCGImage:scaledImage];
}


/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end