zuoyebang/tongxin/VC/WatchHome/DeviceInfo/QRcodeViewController.m

//
//  QRcodeViewController.m
//  watch
//
//  Created by xTT on 2017/7/17.
//  Copyright © 2017年 xTT. All rights reserved.
//

#import "QRcodeViewController.h"
#import "Circle.h"

@interface QRcodeViewController ()

@end

@implementation QRcodeViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
//    self.codeBG.layer.borderColor = [UIColor colorWithWhite:0.5 alpha:0.5].CGColor;
//    self.codeBG.layer.borderWidth = 1;
    
    self.zx_navTitle = @"二维码";
    
    self.label_name.text = cUser.cDevice.name;
    
    self.deviceImage.layer.cornerRadius = CGRectGetWidth(self.deviceImage.frame)/2;
    self.deviceImage.layer.masksToBounds = YES;
    self.imeiLabel.text = [NSString stringWithFormat:@"IMEI/MEID:%@",cUser.cDevice.imei];
    UIImage *defaImage ;
    if([cUser.cDevice.sex isEqualToString:@"girl"]){
        defaImage = [UIImage imageNamed:@"icon_girl_head_portrait_1"];
    }else{
        defaImage = [UIImage imageNamed:@"icon_boy_head_portrait_1"];
    }
    [self.deviceImage sd_setImageWithURL:[NSURL URLWithString:cUser.cDevice.avator] placeholderImage:defaImage];
    
    
    WEAKSELF
    Circle *circle = [cUser getCircleWithImei:cUser.cDevice.imei];
    [circle getCircleInviteTokenSuccess:^(id responseObject){
        NSString *codeStr = [weakSelf getUriWithDic:@{
//                                                      @"inviteToken":responseObject[@"inviteToken"],
                                                      @"groupid":circle.groupid,
                                                      @"imei":cUser.cDevice.imei}
                                                Url:responseObject[@"baseURL"]];
        [weakSelf setImageViewWithCodeStr:codeStr];
//        weakSelf.label_InviteToken.text = [NSString stringWithFormat:@"邀请码:%@",responseObject[@"inviteToken"]];
    } failure:^{
        [weakSelf setImageViewWithCodeStr:cUser.cDevice.imei];
    }];
}

- (void)setImageViewWithCodeStr:(NSString *)codeStr{
    CIFilter *filter = [CIFilter filterWithName:@"CIQRCodeGenerator"];
    [filter setDefaults];
    
    NSData *data = [codeStr dataUsingEncoding:NSUTF8StringEncoding];
    [filter setValue:data forKeyPath:@"inputMessage"];
    // 4.获取输出的二维码
    CIImage *outputImage = [filter outputImage];
    
    self.imageView_Code.image = [self createNonInterpolatedUIImageFormCIImage:outputImage
                                                                     withSize:_imageView_Code.frame.size.width];
}

- (NSString *)getUriWithDic:(NSDictionary *)dic Url:(NSString *)Url{
    if (!Url) {
        Url = @"";
    }
    
    NSMutableArray *arr = [NSMutableArray array];
    [dic enumerateKeysAndObjectsUsingBlock:^(id  _Nonnull key, id  _Nonnull obj, BOOL * _Nonnull stop) {
        [arr addObject:[NSString stringWithFormat:@"%@=%@",key,obj]];
    }];
    
    NSRange range = [Url rangeOfString:@"?"];
    if (range.location == NSNotFound) {
        return [NSString stringWithFormat:@"%@?%@",Url,[arr componentsJoinedByString:@"&"]];
    }else{
        return [NSString stringWithFormat:@"%@&%@",Url,[arr componentsJoinedByString:@"&"]];
    }
}

//高清二维码
- (UIImage *)createNonInterpolatedUIImageFormCIImage:(CIImage *)image withSize:(CGFloat) size {
    
    CGRect extent = CGRectIntegral(image.extent);
    
    //设置比例
    
    CGFloat scale = MIN(size/CGRectGetWidth(extent), size/CGRectGetHeight(extent));
    
    // 创建bitmap（位图）;
    
    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);
    
    // 保存bitmap到图片
    
    CGImageRef scaledImage = CGBitmapContextCreateImage(bitmapRef);
    
    CGContextRelease(bitmapRef);
    
    
    
    CGImageRelease(bitmapImage);
    
    return [UIImage imageWithCGImage:scaledImage];
    
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#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