iOS 扩展方法

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UIView的扩展:

#import <UIKit/UIKit.h>@interface UIView (Ext)/** width 宽度 */@property (nonatomic, assign) CGFloat width;/** height 高度 */@property (nonatomic, assign) CGFloat height;/** top 顶部y坐标 */@property (nonatomic, assign) CGFloat top;/** left 左侧x坐标 */@property (nonatomic, assign) CGFloat left;/** bottom 底部y坐标 */@property (nonatomic, assign) CGFloat bottom;/** right 右侧x坐标 */@property (nonatomic, assign) CGFloat right;/** origin */@property (nonatomic, assign) CGPoint origin;/** size 尺寸 */@property (nonatomic, assign) CGSize size;

UIView+Ext.m#import "UIView+Ext.h"@implementation UIView (Ext)- (void)setSize:(CGSize)size{    CGRect newFrame = self.frame;    newFrame.size = size;    self.frame = newFrame;}- (CGSize)size{    return self.frame.size;}- (void)setOrigin:(CGPoint)origin{    CGRect newFrame = self.frame;    newFrame.origin = origin;    self.frame = newFrame;}- (CGPoint)origin{    return self.frame.origin;}- (void)setLeft:(CGFloat)left {    CGRect newFrame = self.frame;    newFrame.origin.x = left;    self.frame = newFrame;}- (CGFloat)left {    return self.origin.x;}- (void)setRight:(CGFloat)right {    CGRect newFrame = self.frame;    newFrame.origin.x = right - self.width;    self.frame = newFrame;}- (CGFloat)right {    return self.frame.origin.x + self.width;}- (void)setTop:(CGFloat)top {    CGRect newFrame = self.frame;    newFrame.origin.y = top;    self.frame = newFrame;}- (CGFloat)top {    return self.frame.origin.y;}- (void)setBottom:(CGFloat)bottom {    CGRect newFrame = self.frame;    newFrame.origin.y = bottom - self.height;    self.frame = newFrame;}- (CGFloat)bottom {    return self.frame.origin.y + self.height;}- (void)setWidth:(CGFloat)width {    CGRect newFrame = self.frame;    newFrame.size.width = width;    self.frame = newFrame;}- (CGFloat)width {    return self.frame.size.width;}- (void)setHeight:(CGFloat)height {    CGRect newFrame = self.frame;    newFrame.size.height = height;    self.frame = newFrame;}- (CGFloat)height {    return self.frame.size.height;}

字符串NSString的扩展:

#import <UIKit/UIKit.h>@interface NSString (Ext)/** 判断字符串是否为空 @return <#return value description#> */- (BOOL)isNull;/** 获取字符串的宽度 @param size 尺寸 @param fontSize 字体大小 @return <#return value description#> */- (CGFloat)widthWithSize:(CGSize)size fontSize:(CGFloat)fontSize;/** 获取字符串高度 @param size 尺寸 @param fontSize 字体大小 @return <#return value description#> */- (CGFloat)heightWithSize:(CGSize)size fontSize:(CGFloat)fontSize;/** 判断是否是有效的电话号码 @return <#return value description#> */- (BOOL)isValidMobileNumber;/** 将时间戳转换为时间 @return <#return value description#> */- (NSString *)stampToDatestring;/** 判断是否是有效的邮箱 @return <#return value description#> */- (BOOL)isValidEmail;/**是否是字母和数字的组合*/-(BOOL)checkIsHaveNumAndLetter;/**判断是否包含汉字*/-(BOOL)estimateStringContainChinese:(NSString*)text;/**判断是否包含英文字母*/-(BOOL)estimateStringContainEnglish:(NSString*)text;

#import "NSString+Ext.h"@implementation NSString (Ext)- (BOOL)isNull {    if (self == nil        || [self isKindOfClass:[NSNull class]]        || [self isEqualToString:@"<null>"]        || [self isEqualToString:@"null"]        || [self isEqualToString:@"(null)"]        || [self isEqualToString:@""]) {        return YES;    }    return NO;}- (CGFloat)widthWithSize:(CGSize)size fontSize:(CGFloat)fontSize {    CGRect rect = [self boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName: [UIFont systemFontOfSize:fontSize]} context:nil];    return ceilf(rect.size.width);}- (CGFloat)heightWithSize:(CGSize)size fontSize:(CGFloat)fontSize {    CGRect rect = [self boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName: [UIFont systemFontOfSize:fontSize]} context:nil];    return ceilf(rect.size.height);}- (BOOL)isValidMobileNumber {    if (self.length != 11)    {        return NO;    }    /**     * 手机号码:     * 13[0-9], 14[5,7], 15[0, 1, 2, 3, 5, 6, 7, 8, 9], 17[0, 1, 6, 7, 8], 18[0-9]     * 移动号段: 134,135,136,137,138,139,147,150,151,152,157,158,159,170,178,182,183,184,187,188     * 联通号段: 130,131,132,145,155,156,170,171,175,176,185,186     * 电信号段: 133,149,153,170,173,177,180,181,189     */    NSString *MOBILE = @"^1(3[0-9]|4[57]|5[0-35-9]|7[0135678]|8[0-9])\\d{8}$";    /**     * 中国移动：China Mobile     * 134,135,136,137,138,139,147,150,151,152,157,158,159,170,178,182,183,184,187,188     */    NSString *CM = @"^1(3[4-9]|4[7]|5[0-27-9]|7[08]|8[2-478])\\d{8}$";    /**     * 中国联通：China Unicom     * 130,131,132,145,155,156,170,171,175,176,185,186     */    NSString *CU = @"^1(3[0-2]|4[5]|5[56]|7[0156]|8[56])\\d{8}$";    /**     * 中国电信：China Telecom     * 133,149,153,170,173,177,180,181,189     */    NSString *CT = @"^1(3[3]|4[9]|53|7[037]|8[019])\\d{8}$";    NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];    NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM];    NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU];    NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT];    if (([regextestmobile evaluateWithObject:self] == YES)        || ([regextestcm evaluateWithObject:self] == YES)        || ([regextestct evaluateWithObject:self] == YES)        || ([regextestcu evaluateWithObject:self] == YES))    {        return YES;    }    else    {        return NO;    }}- (NSString *)stampToDatestring {    NSDate *d = [[NSDate alloc] initWithTimeIntervalSince1970:[self longLongValue]/1000.0];    NSDateFormatter*dateFormatter = [[NSDateFormatter alloc]init];    //设定时间格式,这里可以设置成自己需要的格式    [dateFormatter setDateFormat:@"yyyy-MM-dd"];    NSString*currentDateStr = [dateFormatter stringFromDate:d];    return currentDateStr;}- (BOOL)isValidEmail {    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];    return [emailTest evaluateWithObject:self];}-(BOOL)checkIsHaveNumAndLetter{    //数字条件    NSRegularExpression *tNumRegularExpression = [NSRegularExpression regularExpressionWithPattern:@"[0-9]" options:NSRegularExpressionAllowCommentsAndWhitespace error:nil];    //符合数字条件的有几个字节    NSUInteger tNumMatchCount = [tNumRegularExpression numberOfMatchesInString:self                                                                       options:NSMatchingReportProgress                                                                         range:NSMakeRange(0, self.length)];    //英文字条件    NSRegularExpression *sLetterRegularExpression = [NSRegularExpression regularExpressionWithPattern:@"[a-z]" options:NSRegularExpressionAllowCommentsAndWhitespace error:nil];    //符合英文字条件的有几个字节    NSUInteger sLetterMatchCount = [sLetterRegularExpression numberOfMatchesInString:self options:NSMatchingReportProgress range:NSMakeRange(0, self.length)];    //英文字条件    NSRegularExpression *tLetterRegularExpression = [NSRegularExpression regularExpressionWithPattern:@"[A-Z]" options:NSRegularExpressionAllowCommentsAndWhitespace error:nil];    //符合英文字条件的有几个字节    NSUInteger tLetterMatchCount = [tLetterRegularExpression numberOfMatchesInString:self options:NSMatchingReportProgress range:NSMakeRange(0, self.length)];    // 没有大写或小写    if ((tLetterMatchCount == 0 && sLetterMatchCount == 0) || tNumMatchCount == 0) {        return NO;    } else {        if(tNumMatchCount + tLetterMatchCount + sLetterMatchCount == self.length){            return YES;        }else{            return NO;        }    }}-(BOOL)estimateStringContainChinese:(NSString*)text{    if(text){        for (int i=0; i<text.length; i++) {            NSRange range = NSMakeRange(i,1);            NSString *subString = [text substringWithRange:range];            const char *cString = [subString UTF8String];            if (strlen(cString) == 3){ //代表有汉字                return YES;              }        }    }    return NO;}-(BOOL)estimateStringContainEnglish:(NSString*)text{    if(text){        for (int i=0; i<text.length; i++) {            NSRange range = NSMakeRange(i,1);            NSString *subString = [text substringWithRange:range];            const char *cString = [subString UTF8String];            if (strlen(cString) == 1){ //代表有英文                return YES;            }        }    }    return NO;}

UIAlertView的扩展:

#import <UIKit/UIKit.h>@interface UIAlertView (Ext)/** 自定义alertView @param title 标题 @param messgae 内容 @param cancelTitle 取消按钮标题 @param confirmTitle 确定按钮标题 @param cancel 取消回调 @param confirm 确定回调 @return <#return value description#> */+ (instancetype)alertWithTitle:(NSString *)title messgae:(NSString *)messgae cancelTitle:(NSString *)cancelTitle confirmTitle:(NSString *)confirmTitle cancel:(void(^)())cancel confirm:(void(^)())confirm;

#import "UIAlertView+Ext.h"#import <objc/runtime.h>typedef void(^Confirm)();typedef void(^Cancel)();static const void *UIAlertViewOriginalDelegateKey                = &UIAlertViewOriginalDelegateKey;static const void *UIAlertViewCancelBlockKey                     = &UIAlertViewCancelBlockKey;static const void *UIAlertViewSubmitBlockKey                     = &UIAlertViewSubmitBlockKey;@implementation UIAlertView (Ext)+ (instancetype)alertWithTitle:(NSString *)title messgae:(NSString *)messgae cancelTitle:(NSString *)cancelTitle confirmTitle:(NSString *)confirmTitle cancel:(void (^)())cancel confirm:(void (^)())confirm{    UIAlertView *alert = [[UIAlertView alloc]initWithTitle:title message:messgae delegate:self cancelButtonTitle:cancelTitle otherButtonTitles:confirmTitle, nil];    if (confirm) {        [alert setDidConfirmBlock:confirm];    }    if (cancel) {        [alert setCancelBlock:cancel];    }    return alert;}- (void)setDidConfirmBlock:(Confirm)didPresentBlock {    [self _checkAlertViewDelegate];    objc_setAssociatedObject(self, UIAlertViewSubmitBlockKey, didPresentBlock, OBJC_ASSOCIATION_COPY);}- (Confirm)didConfirmBlock {    return objc_getAssociatedObject(self, UIAlertViewSubmitBlockKey);}- (void)setCancelBlock:(Cancel)cancelBlock {    [self _checkAlertViewDelegate];    objc_setAssociatedObject(self, UIAlertViewCancelBlockKey, cancelBlock, OBJC_ASSOCIATION_COPY);}- (Cancel)cancelBlock {    return objc_getAssociatedObject(self, UIAlertViewCancelBlockKey);}- (void)_checkAlertViewDelegate {    if (self.delegate != (id<UIAlertViewDelegate>)self) {        objc_setAssociatedObject(self, UIAlertViewOriginalDelegateKey, self.delegate, OBJC_ASSOCIATION_ASSIGN);        self.delegate = (id<UIAlertViewDelegate>)self;    }}- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{    switch (buttonIndex) {        case 0:        {            Cancel cancel = [alertView cancelBlock];            cancel();        }            break;        case 1:        {            Confirm confirm = [alertView didConfirmBlock];            confirm();        }            break;        default:            break;    }}@end

UIImage的扩展:

#import <UIKit/UIKit.h>@interface UIImage (Ext)/** 压缩图片至指定大小 @param size <#size description#> @return <#return value description#> */- (UIImage*)scaleToSize:(CGSize)size;@end

#import "UIImage+Ext.h"@implementation UIImage (Ext)- (UIImage*)scaleToSize:(CGSize)size{    // 创建一个bitmap的context    // 并把它设置成为当前正在使用的context    UIGraphicsBeginImageContext(size);    // 绘制改变大小的图片    [self drawInRect:CGRectMake(0, 0, size.width, size.height)];    // 从当前context中创建一个改变大小后的图片    UIImage* scaledImage = UIGraphicsGetImageFromCurrentImageContext();    // 使当前的context出堆栈    UIGraphicsEndImageContext();    // 返回新的改变大小后的图片    return scaledImage;}@end

UIImageView的扩展:

#import <UIKit/UIKit.h>@interface UIImageView (Ext)/** 旋转图片 @param angle 角度 @param duation 时间 */- (void)rotationByAngle:(CGFloat)angle Duation:(CGFloat)duation;/** 旋转图片 @param angle 角度 @param duation 时间 @param delay 延迟 */- (void)rotationByAngle:(CGFloat)angle Duation:(CGFloat)duation Delay:(CGFloat)delay;@end

#import "UIImageView+Ext.h"@implementation UIImageView (Ext)- (void)rotationByAngle:(CGFloat)angle Duation:(CGFloat)duation{    CABasicAnimation* rotationAnimation;    rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];    rotationAnimation.toValue = [NSNumber numberWithFloat: angle * (M_PI / 180.0f) ];    rotationAnimation.duration = duation;    rotationAnimation.cumulative = YES;    rotationAnimation.repeatCount = 0;    [self.layer addAnimation:rotationAnimation forKey:@"rotationAnimation"];}- (void)rotationByAngle:(CGFloat)angle Duation:(CGFloat)duation Delay:(CGFloat)delay{    CGAffineTransform endAngle = CGAffineTransformMakeRotation(angle * (M_PI / 180.0f));    [UIView animateWithDuration:duation delay:delay options:UIViewAnimationOptionCurveLinear animations:^{        self.transform = endAngle;    } completion:^(BOOL finished) {    }];}@end

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