添加使用字符串生成二维码的UIImage分类和相应的测试demo

MobileProject/Expand/Category/Foundation/NSString/NSString+Pinyin.h

@@ -19,4 +19,12 @@
 - (NSArray*)pinyinInitialsArray;
 - (NSString*)pinyinInitialsString;
 
+
+/**
+ *  正则验证－是否为中文
+ *
+ *  @return return value description
+ */
+- (BOOL)isChinese;
+
 @end

MobileProject/Expand/Category/Foundation/NSString/NSString+Pinyin.m

@@ -55,4 +55,11 @@ - (NSString*)pinyinInitialsString{
     return pinyin;
 }
 
+- (BOOL)isChinese
+{
+    NSString *match=@"(^[\u4e00-\u9fa5]+$)";
+    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF matches %@", match];
+    return [predicate evaluateWithObject:self];
+}
+
 @end

MobileProject/Expand/Category/UIKit/UIImage/UIImage+QR.h

@@ -0,0 +1,27 @@
+//
+//  UIImage+QR.h
+//  MobileProject
+//
+//  Created by 韩学鹏 on 16/6/17.
+//  Copyright © 2016年 wujunyang. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface UIImage (QR)
+
+
+/**
+ *  使用字符串生成二维码
+ *
+ *  @param qrString 需要生成二维码的字符串
+ *  @param size     图片尺寸
+ *  @param red      red description
+ *  @param green    green description
+ *  @param blue     blue description
+ *
+ *  @return return value description
+ */
++ (UIImage *)qrCodeImageWithString:(NSString *)qrString withSize:(CGFloat)size withRed:(CGFloat)red andGreen:(CGFloat)green andBlue:(CGFloat)blue;
+
+@end

MobileProject/Expand/Category/UIKit/UIImage/UIImage+QR.m

@@ -0,0 +1,94 @@
+//
+//  UIImage+QR.m
+//  MobileProject
+//
+//  Created by 韩学鹏 on 16/6/17.
+//  Copyright © 2016年 wujunyang. All rights reserved.
+//
+
+#import "UIImage+QR.h"
+
+@implementation UIImage (QR)
+
++ (UIImage *)qrCodeImageWithString:(NSString *)qrString withSize:(CGFloat)size withRed:(CGFloat)red andGreen:(CGFloat)green andBlue:(CGFloat)blue
+{
+    CIImage *ciimage = [self ciimageWithString:qrString];
+    UIImage *qrImage = [self createNonInterpolatedUIImageFormCIImage:ciimage withSize:size];
+    qrImage = [self imageBlackToTransparent:qrImage withRed:red andGreen:green andBlue:blue];
+    return qrImage;
+}
+
++ (CIImage *)ciimageWithString:(NSString *)qrString
+{
+    NSData *stringData = [qrString dataUsingEncoding:NSUTF8StringEncoding];
+    //创建filter
+    CIFilter *qrFilter = [CIFilter filterWithName:@"CIQRCodeGenerator"];
+    //设置内容和纠错级别
+    [qrFilter setValue:stringData forKey:@"inputMessage"];
+    [qrFilter setValue:@"M" forKey:@"inputCorrectionLevel"];
+    //返回CIImage
+    return qrFilter.outputImage;
+}
+
++ (UIImage *)createNonInterpolatedUIImageFormCIImage:(CIImage *)image withSize:(CGFloat) size {
+    CGRect extent = CGRectIntegral(image.extent);
+    CGFloat scale = MIN(size/CGRectGetWidth(extent), size/CGRectGetHeight(extent));
+    // 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);
+    // 保存bitmap到图片
+    CGImageRef scaledImage = CGBitmapContextCreateImage(bitmapRef);
+    CGContextRelease(bitmapRef);
+    CGImageRelease(bitmapImage);
+    return [UIImage imageWithCGImage:scaledImage];
+}
+
+void ProviderReleaseData (void *info, const void *data, size_t size){
+    free((void*)data);
+}
++ (UIImage*)imageBlackToTransparent:(UIImage*)image withRed:(CGFloat)red andGreen:(CGFloat)green andBlue:(CGFloat)blue{
+    const int imageWidth = image.size.width;
+    const int imageHeight = image.size.height;
+    size_t      bytesPerRow = imageWidth * 4;
+    uint32_t* rgbImageBuf = (uint32_t*)malloc(bytesPerRow * imageHeight);
+    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
+    CGContextRef context = CGBitmapContextCreate(rgbImageBuf, imageWidth, imageHeight, 8, bytesPerRow, colorSpace,
+                                                 kCGBitmapByteOrder32Little | kCGImageAlphaNoneSkipLast);
+    CGContextDrawImage(context, CGRectMake(0, 0, imageWidth, imageHeight), image.CGImage);
+    // 遍历像素
+    int pixelNum = imageWidth * imageHeight;
+    uint32_t* pCurPtr = rgbImageBuf;
+    for (int i = 0; i < pixelNum; i++, pCurPtr++){
+        if ((*pCurPtr & 0xFFFFFF00) < 0x99999900){
+            // change color
+            uint8_t* ptr = (uint8_t*)pCurPtr;
+            ptr[3] = red; //0~255
+            ptr[2] = green;
+            ptr[1] = blue;
+        }else{
+            uint8_t* ptr = (uint8_t*)pCurPtr;
+            ptr[0] = 0;
+        }
+    }
+    // 输出图片
+    CGDataProviderRef dataProvider = CGDataProviderCreateWithData(NULL, rgbImageBuf, bytesPerRow * imageHeight, ProviderReleaseData);
+    CGImageRef imageRef = CGImageCreate(imageWidth, imageHeight, 8, 32, bytesPerRow, colorSpace,
+                                        kCGImageAlphaLast | kCGBitmapByteOrder32Little, dataProvider,
+                                        NULL, true, kCGRenderingIntentDefault);
+    CGDataProviderRelease(dataProvider);
+    UIImage* resultUIImage = [UIImage imageWithCGImage:imageRef];
+    // 清理空间
+    CGImageRelease(imageRef);
+    CGContextRelease(context);
+    CGColorSpaceRelease(colorSpace);
+    return resultUIImage;
+}
+
+@end

MobileProject/Expand/Tool/CheckBankCard/MPCheckBankCard.h

@@ -0,0 +1,39 @@
+//
+//  MPCheckBankCard.h
+//  MobileProject
+//
+//  Created by 韩学鹏 on 16/6/17.
+//  Copyright © 2016年 wujunyang. All rights reserved.
+//
+/*
+ 当你输入信用卡号码的时候，有没有担心输错了而造成损失呢？其实可以不必这么担心，
+ 因为并不是一个随便的信用卡号码都是合法的，它必须通过Luhn算法来验证通过。
+ 该校验的过程：
+ 1、从卡号最后一位数字开始，逆向将奇数位(1、3、5等等)相加。
+ 2、从卡号最后一位数字开始，逆向将偶数位数字，先乘以2（如果乘积为两位数，则将其减去9），再求和。
+ 3、将奇数位总和加上偶数位总和，结果应该可以被10整除。
+ 例如，卡号是：5432123456788881
+ 则奇数、偶数位（用红色标出）分布：5432123456788881
+ 奇数位和=35
+ 偶数位乘以2（有些要减去9）的结果：1 6 2 6 1 5 7 7，求和=35。
+ 最后35+35=70 可以被10整除，认定校验通过。
+ 请编写一个程序，从键盘输入卡号，然后判断是否校验通过。通过显示：“成功”，否则显示“失败”。
+ 比如，用户输入：356827027232780
+ 程序输出：成功
+ */
+
+#import <Foundation/Foundation.h>
+
+
+
+@interface MPCheckBankCard : NSObject
+
+/**
+ * 校验银行卡卡号
+ *
+ * @param cardId
+ * @return
+ */
++ (BOOL)checkBankCard:(NSString *)cardId;
+
+@end

MobileProject/Expand/Tool/CheckBankCard/MPCheckBankCard.m

@@ -0,0 +1,71 @@
+//
+//  MPCheckBankCard.m
+//  MobileProject
+//
+//  Created by 韩学鹏 on 16/6/17.
+//  Copyright © 2016年 wujunyang. All rights reserved.
+//
+
+#import "MPCheckBankCard.h"
+
+@implementation MPCheckBankCard
+
++ (BOOL)checkBankCard:(NSString *)cardId
+{
+    cardId = [cardId stringByReplacingOccurrencesOfString:@" " withString:@""];
+
+    //位数校验
+    if (cardId.length == 16 || cardId.length == 19) {
+
+    } else {
+        return NO;
+    }
+
+    char bit = [self getBankCardCheckCode:[cardId substringToIndex:cardId.length - 1]];
+    if (bit == 'N') {
+        return NO;
+    } else {
+        return [cardId characterAtIndex:cardId.length - 1] == bit;
+    }
+}
+
++ (char)getBankCardCheckCode:(NSString *)nonCheckCodeCardId
+{
+    if (nonCheckCodeCardId == nil || [self isEmptyString:nonCheckCodeCardId] || ![self isNo:nonCheckCodeCardId]) {
+        return 'N';
+    }
+    const char *chs = [nonCheckCodeCardId stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]].UTF8String;
+    int luhmSum = 0;
+    for (int i = (int)strlen(chs) - 1, j = 0; i >= 0; i--, j++) {
+        int k = chs[i] - '0';
+        if (j % 2 == 0) {
+            k *= 2;
+            k = k / 10 + k % 10;
+        }
+        luhmSum += k;
+    }
+    return (luhmSum % 10 == 0) ? '0' : (char) ((10 - luhmSum % 10) + '0');
+}
+
++ (BOOL)isNo:(NSString *)no
+{
+    NSString *carRegex = @"\\d+";
+    NSPredicate *carTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",carRegex];
+    return [carTest evaluateWithObject:no];
+}
+
++ (BOOL)isEmptyString:(NSString *)str
+{
+    if (str == nil || str == NULL) {
+        return YES;
+    }
+    if ([str isKindOfClass:[NSNull class]]) {
+        return YES;
+    }
+    if ([[str stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] length] == 0) {
+        return YES;
+    }
+    return NO;
+}
+
+@end

MobileProject/Expand/Tool/OtherHelper/MPUtils.h

@@ -0,0 +1,89 @@
+//
+//  MAUtils.h
+//  MobileProject
+//
+//  Created by 韩学鹏 on 16/6/17.
+//  Copyright © 2016年 wujunyang. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+@interface MPUtils : NSObject
+
+/**
+ *  拨打电话
+ *
+ *  @param phone 电话号码
+ */
++ (void)callWithPhoneNumber:(NSString *)phone;
+
+
+/**
+ *  屏幕上显示一个消息，需要调用hideMessage隐藏
+ *
+ *  @param msg 提示信息
+ */
++ (void)showMessage:(NSString *)msg;
+
+/**
+ *  隐藏屏幕上的消息
+ */
++ (void)hideMessage;
+
+/**
+ *  显示一个信息在指定时间后删除
+ *
+ *  @param msg   提示信息
+ *  @param delay 消失时间
+ */
++ (void)showToast:(NSString *)msg delay:(NSUInteger)delay;
+
+#pragma mark - 邮箱、手机等是否有效验证.
+
+/**
+ *  邮箱验证
+ *
+ *  @param email email description
+ *
+ *  @return return value description
+ */
++ (BOOL)isValidateEmail:(NSString *)email;
+
+/**
+ *  手机号码验证
+ *
+ *  @param mobile mobile description
+ *
+ *  @return return value description
+ */
++ (BOOL)isValidateMobile:(NSString *)mobile;
+
+/**
+ *  身份证号码验证
+ *
+ *  @param identityCard identityCard description
+ *
+ *  @return return value description
+ */
++ (BOOL)isValidateIDCard:(NSString *)identityCard;
+
+/**
+ *  车牌号验证
+ *
+ *  @param carNo carNo description
+ *
+ *  @return return value description
+ */
++ (BOOL)isValidateCarNo:(NSString *)carNo;
+
+
+/**
+ *  是否为空字符串
+ *
+ *  @param str str description
+ *
+ *  @return return value description
+ */
++ (BOOL)isEmptyString:(NSString *)str;
+
+@end