iOS二維生成
阿新 • • 發佈：2017-10-07
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#import "ViewController.h"
@interface ViewController ()
// 用於顯示生成二維碼圖片的 imageView
@property (weak, nonatomic) IBOutlet UIImageView *imageView;
@end
@implementation ViewController
// 點擊生成二維碼
- (IBAction)click {
//創建濾鏡
CIFilter *filter = [CIFilter filterWithName:@"CIQRCodeGenerator"];
//設置默認值
[filter setDefaults];
//設置內容
[filter setValue:[@"https://www.baidu.com" dataUsingEncoding:NSUTF8StringEncoding] forKey:@"inputMessage"];
//生成圖片
CIImage *image = [filter outputImage];
//放大圖片
image = [image imageByApplyingTransform:CGAffineTransformMakeScale(8, 8)];
//顯示二維碼圖片
self.imageView.image = [UIImage imageWithCIImage:image];
}
@end
iOS二維生成