add

GIGA/Category/UIImage+LogoQrCode.h

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+//
+//  UIImage+LogoQrCode.h
+//  GIGA
+//
+//  Created by lianxiang on 2018/9/25.
+//  Copyright © 2018年 com.giga.ios. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface UIImage (LogoQrCode)
+
++(UIImage *)createQrImageWith:(UIImage *)logo logoSize:(CGSize )size qrText:(NSString *)text;
+
+
+@end

GIGA/Category/UIImage+LogoQrCode.m

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+//
+//  UIImage+LogoQrCode.m
+//  GIGA
+//
+//  Created by lianxiang on 2018/9/25.
+//  Copyright © 2018年 com.giga.ios. All rights reserved.
+//
+
+#import "UIImage+LogoQrCode.h"
+
+@implementation UIImage (LogoQrCode)
+
++(UIImage *)createQrImageWith:(UIImage *)logo logoSize:(CGSize )size qrText:(NSString *)text
+{
+    
+    //NSArray *filter = [CIFilter filterNamesInCategory:kCICategoryBuiltIn];
+    
+    // 二维码过滤器
+    CIFilter *filterImage = [CIFilter filterWithName:@"CIQRCodeGenerator"];
+    // 将二位码过滤器设置为默认属性
+    [filterImage setDefaults];
+    // 将文字转化为二进制
+    NSData *dataImage = [text dataUsingEncoding:NSUTF8StringEncoding];
+    // 打印输入的属性
+    NSLog(@"%@", filterImage.inputKeys);
+    // KVC 赋值
+    [filterImage setValue:dataImage forKey:@"inputMessage"];
+    // 取出输出图片
+    CIImage *outputImage = [filterImage outputImage];
+    outputImage = [outputImage imageByApplyingTransform:CGAffineTransformMakeScale(20, 20)];
+    // 转化图片
+    UIImage *image = [UIImage imageWithCIImage:outputImage];
+    
+    // 为二维码加自定义图片
+    
+    // 开启绘图, 获取图片 上下文<图片大小>
+    UIGraphicsBeginImageContext(image.size);
+    // 将二维码图片画上去
+    [image drawInRect:CGRectMake(0, 0, image.size.width, image.size.height)];
+    // 将小图片画上去
+    UIImage *smallImage = logo;
+    [smallImage drawInRect:CGRectMake((image.size.width - 100) / 2, (image.size.width - 100) / 2, 100, 100)];
+    // 获取最终的图片
+    UIImage *finalImage = UIGraphicsGetImageFromCurrentImageContext();
+    // 关闭上下文
+    UIGraphicsEndImageContext();
+    return finalImage;
+    
+    
+}
+
+@end

GIGA/Category/UIImage+ShotImage.h

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+//
+//  UIImage+ShotImage.h
+//  GIGA
+//
+//  Created by lianxiang on 2018/9/25.
+//  Copyright © 2018年 com.giga.ios. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface UIImage (ShotImage)
+//截图tableviewi
++(UIImage *)saveLongImage:(UITableView *)table;
+
+@end

GIGA/Category/UIImage+ShotImage.m

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+//
+//  UIImage+ShotImage.m
+//  GIGA
+//
+//  Created by lianxiang on 2018/9/25.
+//  Copyright © 2018年 com.giga.ios. All rights reserved.
+//
+
+#import "UIImage+ShotImage.h"
+
+@implementation UIImage (ShotImage)
+
++(UIImage *)saveLongImage:(UITableView *)table {
+    
+    UIImage* image = nil;
+    // 下面方法，第一个参数表示区域大小。第二个参数表示是否是非透明的。如果需要显示半透明效果，需要传NO，否则传YES。第三个参数就是屏幕密度了，调整清晰度。
+    
+    UIGraphicsBeginImageContextWithOptions(table.contentSize, YES, [UIScreen mainScreen].scale);
+    
+    CGPoint savedContentOffset = table.contentOffset;
+    CGRect savedFrame = table.frame;
+    table.contentOffset = CGPointZero;
+    table.frame = CGRectMake(0, 0, table.contentSize.width, table.contentSize.height);
+    
+    [table.layer renderInContext: UIGraphicsGetCurrentContext()];
+    
+    image = UIGraphicsGetImageFromCurrentImageContext();
+    
+    table.contentOffset = savedContentOffset;
+    
+    table.frame = savedFrame;
+    
+    UIGraphicsEndImageContext();
+
+    return image;
+    
+}
+
+@end