將圖片轉為二進位字串

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#pragma mark - 將圖片轉為二進位+ (NSString *)image2binaryWithImage:(UIImage *)image imageName:(NSString *)imgName{    //擷取圖片的位元據    NSData *imageData = UIImageJPEGRepresentation(image, 0.65);//    if (UIImagePNGRepresentation(image) == nil) {//        imageData = UIImageJPEGRepresentation(image, 0.65);//    } else {//        imageData = UIImagePNGRepresentation(image);//    }     //把位元據轉為Base64編碼的字串    NSString *dataStr = [Base64Tools encodeBase64Data:imageData];        //擷取沙箱目錄、將圖片寫入到本地    if (![imgName isEqualToString:@""]) {        NSString *filePath = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:imgName];        [imageData writeToFile:filePath atomically:YES];    }    return dataStr;}

//第三方工具方法
+ (NSString*)encodeBase64Data:(NSData*)data {        data = [GTMBase64 encodeData:data];    NSString *base64String = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding] ;    return base64String;}

 

將圖片轉為二進位字串