自己常用的工具类
///本地保存string,int,Char,等类型，forKey为键，Value为要保存的值
+ (void)UserDefaultSetValue:(id)Value forKey:(NSString *)keyString;
///本地保存BOOL类型，forKey为键，Value为要保存的值
+ (void)UserDefaultSetBool:(BOOL )VBool forKey:(NSString *)keyString;
///删除本地保存的值，keyString为键
+ (void)UserDefaultRemoveObjectForKey:(NSString *)keyString;
///取出本地保存的string,int,Char,等值，keyString为键
+ (id)UserDefaultObjectForKey:(NSString *)keyString;
///取出本地保存BOOL类型，forKey为键
+ (BOOL)UserDefaultBoolForKey:(NSString *)keyString;
+ (NSMutableAttributedString *)stringChangeAttributeColor:(NSString *)textString andColor:(UIColor *)fontColor and:(NSUInteger)rangeLen;
///把textString,从尾部反向改变长度range,范围的字体颜色
+ (NSMutableAttributedString *)stringChangeEndAttributeColor:(NSString *)textString andColor:(UIColor *)fontColor and:(NSUInteger)range;
///把textString,缩进CGFloat类型15或20
+ (NSMutableAttributedString *)stringHeadIndentAttribute:(NSString *)textString andIndent:(CGFloat)Indent;
///label 自动换行 修改字体大小
+(void)lableWordWrap:(UILabel *)label andfont:(int)font;
///根据字体长度返回宽度
+ (CGSize)sizeWithText:(NSString *)text font:(UIFont *)font maxSize:(CGSize)maxSize;
///特殊的,为了计算评价cell的高度
+ (CGFloat)cellHeightfortextString:(NSString *)textString Images:(NSInteger)Nums;
///计算字体大小为14.f的String高度，上下加了15
+ (CGFloat)toCellTextHeight:(NSString *)String;
///判断是否是正确的手机号
+ (BOOL)PredicateJudgeTelePhone:(NSString *)telePhone;
///计算本地缓存大小
+ (float)allFileSizeLocalCache;
///清理本地缓存
+ (void)cleanAllFileSizeLocalCache;
///把数组保存到本地存储为plist文件里，并给出plist文件名字
+ (void)FileNSArrayStorageToPlist:(NSArray *)fileArray PlistName:(NSString *)plistName;
///从plist文件里读出数组，必须保证plist文件内的确存的是数组！
+ (NSArray *)FileReadNsArrayFromPlist:(NSString *)plistName;
///删除本地缓存的plist文件
+ (void)FileManagerDeletePlistfile:(NSString *)plistName;
///时间转换法则 yyyy-MM-dd HH-mm-ss
+(NSString *)StringFromDateHHmmss:(long) value;
///通过时间戳yyyy-MM-dd
+(NSString *)StringFromDateMMDD:(long)value;
///通过时间戳找到今天周几
+ (NSString *)FindWeekThroughTimestam:(long) value;
///判断当前网络
+ (BOOL)isConnectionAvailable;
///时间转换法则 yyyy-MM-dd
+ (NSDate *)dateFromDateAabAdd:(NSDate *)oldDate;
///时间转换法则 yyyy-MM-dd HH-mm-ss
+ (NSDate *)dateFromDateHHmmss:(NSDate *)oldDate;
///时间转换 未加8小时
+ (NSDate *)dateDateHHmmss:(NSDate *)Date;
///获取时间Date的年-月-日-时-分-秒，返回在数组中
+ (NSArray *)ArrayFromDateComponents:(NSDate *)date;
///根据时间格式Date返回String：年-月-日
+ (NSString *)stringFromDateSubLength:(NSDate *)currentDate;
///计算加减天，返回时间Date格式.string为年-月-日，加为YES,numMonth为增减天数1，7
+ (NSDate *)dateFromDateString:(NSString *)dateString AddDate:(BOOL)addBool andNum:(NSUInteger )dayNum;
///计算加减月份，返回时间Date格式.string为年-月-日，加为YES,numMonth为增减月量1-12
+ (NSDate*)nextMonthDateFromTextString:(NSString *)dateString AddBooL:(BOOL)addBool monthNum:(NSInteger)numMonth;
///将十六进制颜色转换为 UIColor 对象，string要加#，如“#c83c23”
+ (UIColor *)colorWithHexString:(NSString *)color;
///提示框 message 为提示信息
+(void)alterViewShow:(NSString *)message viewcontroller:(UIViewController *)controller stayTime:(int)time;
///去除（null）
+ (NSString *) isBlankString:(NSString *)string;
+ (long)isBlankLong:(long)lng;
///获取Label的高度
+ (CGFloat)getHeightByWidth:(CGFloat)width title:(NSString *)title font:(UIFont*)font;
///获取Label的宽度
+ (CGFloat)getWidthWithTitle:(NSString *)title font:(UIFont *)font;
///压缩图片
+ (NSData *)compressdePNGImage:(UIImage *)image;
// 重绘图片大小
+ (UIImage *)imageWithPNGImage:(UIImage*)image scaledToSize:(CGSize)newSize;
具体实现方法
///压缩图片
+ (NSData *)compressdeImage:(UIImage *)image{
CGSize imagesize =image.size;
imagesize.height =imagesize.height/4;
imagesize.width =imagesize.width/4;
UIImage * imageNew = [self imageWithImage:image scaledToSize:imagesize];
return UIImageJPEGRepresentation(imageNew, 1);
}
// 重绘图片大小
+ (UIImage *)imageWithImage:(UIImage*)image scaledToSize:(CGSize)newSize{
UIGraphicsBeginImageContext(newSize);
//重绘
[image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}
+ (void)UserDefaultSetValue:(id)Value forKey:(NSString *)keyString{
NSUserDefaults * userDefault = [NSUserDefaults standardUserDefaults];
if (![Value isKindOfClass:[NSNull class]]) {
[userDefault setValue:Value forKey:keyString];
}else {
[userDefault setValue:@"" forKey:keyString];
}
[userDefault synchronize];
}
+ (void)UserDefaultSetBool:(BOOL )VBool forKey:(NSString *)keyString{
NSUserDefaults * userDefault = [NSUserDefaults standardUserDefaults];
[userDefault setBool:VBool forKey:keyString];
[userDefault synchronize];
}
+ (void)UserDefaultRemoveObjectForKey:(NSString *)keyString {
NSUserDefaults * userDefault = [NSUserDefaults standardUserDefaults];
[userDefault removeObjectForKey:keyString];
[userDefault synchronize];
}
+ (id)UserDefaultObjectForKey:(NSString *)keyString {
NSUserDefaults * userDefault = [NSUserDefaults standardUserDefaults];
NSString * string = [userDefault objectForKey:keyString];
[[NSUserDefaults standardUserDefaults] objectForKey:@""];
return string;
}
+ (BOOL)UserDefaultBoolForKey:(NSString *)keyString {
NSUserDefaults * userDefault = [NSUserDefaults standardUserDefaults];
BOOL Bool= [userDefault boolForKey:keyString];
return Bool;
}
+ (NSMutableAttributedString *)stringAddThroughLines:(NSString *)textString and:(NSUInteger)rangeLoc{
NSMutableAttributedString *AttributedString = [[NSMutableAttributedString alloc] initWithString:textString];
[AttributedString addAttribute:NSStrikethroughStyleAttributeName value:@(NSUnderlinePatternSolid | NSUnderlineStyleSingle) range:NSMakeRange(rangeLoc, textString.length-rangeLoc)];
return AttributedString;
}
+ (NSMutableAttributedString *)stringChangeAttributeFont:(NSString *)textString andSize:(CGFloat)fontSize and:(NSUInteger)rangeLen
{
NSMutableAttributedString *AttributedString = [[NSMutableAttributedString alloc] initWithString:textString];
[AttributedString addAttribute:NSFontAttributeName
value:[UIFont systemFontOfSize:fontSize]
range:NSMakeRange(0, rangeLen)];
return AttributedString;
}
+ (NSMutableAttributedString *)stringChangeEndAttributeFont:(NSString *)textString andSize:(CGFloat)fontSize endRang:(NSUInteger)endRange
{
NSMutableAttributedString *AttributedString = [[NSMutableAttributedString alloc] initWithString:textString];
[AttributedString addAttribute:NSFontAttributeName
value:[UIFont systemFontOfSize:fontSize]
range:NSMakeRange(textString.length-endRange, endRange)];
return AttributedString;
}
+ (NSMutableAttributedString *)stringChangeAttributeFontColor:(NSString *)textString andSize:(CGFloat)fontSize andColor:(UIColor *)fontColor and:(NSUInteger)rangeLen
{
NSMutableAttributedString *AttributedString = [[NSMutableAttributedString alloc] initWithString:textString];
[AttributedString addAttribute:NSFontAttributeName
value:[UIFont systemFontOfSize:fontSize]
range:NSMakeRange(0, rangeLen)];
[AttributedString addAttribute:NSForegroundColorAttributeName
value:fontColor
range:NSMakeRange(0, rangeLen)];
return AttributedString;
}
+ (NSMutableAttributedString *)stringChangeEndAttributeFontColor:(NSString *)textString andSize:(CGFloat)fontSize andColor:(UIColor *)fontColor and:(NSUInteger)range
{
NSMutableAttributedString *AttributedString = [[NSMutableAttributedString alloc] initWithString:textString];
[AttributedString addAttribute:NSFontAttributeName
value:[UIFont systemFontOfSize:fontSize]
range:NSMakeRange(textString.length-range, range)];
[AttributedString addAttribute:NSForegroundColorAttributeName
value:fontColor
range:NSMakeRange(textString.length-range, range)];
return AttributedString;
}
+ (NSMutableAttributedString *)stringChangeAttributeColor:(NSString *)textString andColor:(UIColor *)fontColor and:(NSUInteger)rangeLen
{
NSMutableAttributedString *AttributedString = [[NSMutableAttributedString alloc] initWithString:textString];
[AttributedString addAttribute:NSForegroundColorAttributeName
value:fontColor
range:NSMakeRange(0, rangeLen)];
return AttributedString;
}
+ (NSMutableAttributedString *)stringChangeEndAttributeColor:(NSString *)textString andColor:(UIColor *)fontColor and:(NSUInteger)range
{
NSMutableAttributedString *AttributedString = [[NSMutableAttributedString alloc] initWithString:textString];
[AttributedString addAttribute:NSForegroundColorAttributeName
value:fontColor
range:NSMakeRange(textString.length-range, range)];
return AttributedString;
}
+ (NSMutableAttributedString *)stringHeadIndentAttribute:(NSString *)textString andIndent:(CGFloat)Indent
{
NSMutableAttributedString *AttributedString = [[NSMutableAttributedString alloc] initWithString:textString];
NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
style.firstLineHeadIndent = Indent;
// style.headIndent = Indent;//整体缩进
// style.lineSpacing = 3.f;//行距
[AttributedString addAttribute:NSParagraphStyleAttributeName value:style range:NSMakeRange(0, AttributedString.length)];
return AttributedString;
}
+ (CGFloat)cellHeightfortextString:(NSString *)textString Images:(NSInteger)Nums{
CGFloat height =49+30+5;
if (Nums ==0) {
height +=0.f;
}else{
height +=80.f;
}
if (![textString isKindOfClass:[NSNull class]]) {
CGFloat TextHeight = [textString sizeWithFont:[UIFont systemFontOfSize:14.f] Size:CGSizeMake([[UIScreen mainScreen] bounds].size.width- 48-8, MAXFLOAT)].height;
height +=TextHeight+1;
}
return height;
}
+ (CGFloat)toCellTextHeight:(NSString *)String{
CGFloat height =10;
if (![String isKindOfClass:[NSNull class]]) {
CGFloat TextHeight = [String sizeWithFont:[UIFont systemFontOfSize:14.f] Size:CGSizeMake([[UIScreen mainScreen] bounds].size.width-16, MAXFLOAT)].height;
height +=TextHeight+1;
}
return height+8;
}
+ (BOOL)PredicateJudgeTelePhone:(NSString *)telePhone {
NSString * num = @"^1[3|4|5|7|8][0-9]\\d{8}$";
NSPredicate *regextestnum = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",num];
if ([regextestnum evaluateWithObject:telePhone]){
return YES;
}else{
return NO;
}
}
+ (float)allFileSizeLocalCache{
NSString *filepath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];
NSFileManager *fileManager=[NSFileManager defaultManager];
__block float folderSize =0;
if ([fileManager fileExistsAtPath:filepath]) {
//拿到算有文件的数组
NSArray *filesArray = [fileManager subpathsAtPath:filepath];
[filesArray enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
NSString *fullPath = [filepath stringByAppendingPathComponent:obj];
folderSize += [self fileSizeAtPath:fullPath];
}];
//拿到每个文件的名字,如有有不想清除的文件就在这里判断
}
return folderSize;
}
+ (void)cleanAllFileSizeLocalCache{
NSString *filepath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];
NSFileManager *fileManager=[NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:filepath]) {
//拿到算有文件的数组
NSArray *filesArray = [fileManager subpathsAtPath:filepath];
[filesArray enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
NSString *fullPath = [filepath stringByAppendingPathComponent:obj];
[fileManager removeItemAtPath:fullPath error:nil];
}];
//拿到每个文件的名字,如有有不想清除的文件就在这里判断
}
}
+ (float)fileSizeAtPath:(NSString *)path{
NSFileManager *fileManager=[NSFileManager defaultManager];
if([fileManager fileExistsAtPath:path]){ ///判断
long long size=[fileManager attributesOfItemAtPath:path error:nil].fileSize;
return size/1024.0/1024.0;
}
return 0;
}
+ (void)FileNSArrayStorageToPlist:(NSArray *)fileArray PlistName:(NSString *)plistName{
NSString *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).firstObject;
NSString *fileName = [path stringByAppendingPathComponent:[NSString stringWithFormat:@"%@%@",plistName,@".plist"]];
[fileArray writeToFile:fileName atomically:YES];
}
+ (NSArray *)FileReadNsArrayFromPlist:(NSString *)plistName{
NSString *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).firstObject;
NSString *filePath = [path stringByAppendingPathComponent:[NSString stringWithFormat:@"%@%@",plistName,@".plist"]];
return [NSArray arrayWithContentsOfFile:filePath];
}
+ (void)FileManagerDeletePlistfile:(NSString *)plistName{
NSFileManager *fManager = [NSFileManager defaultManager];
NSString *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).firstObject;
NSString *filePath = [path stringByAppendingPathComponent:[NSString stringWithFormat:@"%@%@",plistName,@".plist"]];
[fManager removeItemAtPath:filePath error:nil];
}
+ (NSDate *)dateFromDateAabAdd:(NSDate *)oldDate{
NSDateFormatter *dateFormatter =[[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd 00:00:00"];
NSString *stringdate =[dateFormatter stringFromDate:oldDate];
oldDate =[dateFormatter dateFromString:stringdate];
NSTimeInterval intervalTime = [oldDate timeIntervalSince1970];
intervalTime =intervalTime +(8*60*60);
NSDate *newDate = [NSDate dateWithTimeIntervalSince1970:intervalTime];
return newDate;
}
+ (NSDate *)dateFromDateHHmmss:(NSDate *)oldDate{
NSDateFormatter *dateFormatter =[[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSString *stringdate =[dateFormatter stringFromDate:oldDate];
oldDate =[dateFormatter dateFromString:stringdate];
NSTimeInterval intervalTime = [oldDate timeIntervalSince1970];
intervalTime =intervalTime +(8*60*60);
NSDate *newDate = [NSDate dateWithTimeIntervalSince1970:intervalTime];
return newDate;
}
+ (NSDate *)dateDateHHmmss:(NSDate *)Date{
NSDateFormatter *dateFormatter =[[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSString *stringdate =[dateFormatter stringFromDate:Date];
Date =[dateFormatter dateFromString:stringdate];
return Date;
}
+ (NSArray *)ArrayFromDateComponents:(NSDate *)date{
NSMutableArray *dateArray =[NSMutableArray array];
NSDateComponents *components = [[NSCalendar currentCalendar] components:NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear | NSCalendarUnitHour| NSCalendarUnitMinute | NSCalendarUnitSecond fromDate:date];
NSInteger dateYear = [components year];
NSInteger dateMonth = [components month];
NSInteger dateDay = [components day];
NSInteger dateHour = [components hour];
NSInteger dateMinute = [components minute];
NSInteger dateSecond = [components second];
NSNumber *yearVal=[NSNumber numberWithInteger:dateYear];
NSNumber *monthVal=[NSNumber numberWithInteger:dateMonth];
NSNumber *dayVal=[NSNumber numberWithInteger:dateDay];
NSNumber *hourVal=[NSNumber numberWithInteger:dateHour];
NSNumber *minuteVal=[NSNumber numberWithInteger:dateMinute];
NSNumber *secondVal=[NSNumber numberWithInteger:dateSecond];
[dateArray addObject:yearVal];
[dateArray addObject:monthVal];
[dateArray addObject:dayVal];
[dateArray addObject:hourVal];
[dateArray addObject:minuteVal];
[dateArray addObject:secondVal];
return dateArray;
}
+ (NSString *)stringFromDateSubLength:(NSDate *)currentDate{
NSString *dataStr=[NSString stringWithFormat:@"%@",[NineStarToolsObject dateFromDateAabAdd:currentDate]];
dataStr= [dataStr substringToIndex:dataStr.length -15];
return dataStr;
}
+ (NSDate *)dateFromDateString:(NSString *)dateString AddDate:(BOOL)addBool andNum:(NSUInteger )dayNum{
NSDateFormatter *dateFormatter =[[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd 00:00:00"];
NSDate *oldDate =[dateFormatter dateFromString:dateString];
NSTimeInterval intervalTime = [oldDate timeIntervalSince1970];
if (addBool) {
intervalTime =intervalTime +dayNum*(24*60*60)+(8*60*60);
}else{
intervalTime =intervalTime -dayNum*(24*60*60)+(8*60*60);
}
NSDate *newDate = [NSDate dateWithTimeIntervalSince1970:intervalTime];
return newDate;
}
+ (NSDate*)nextMonthDateFromTextString:(NSString *)dateString AddBooL:(BOOL)addBool monthNum:(NSInteger)numMonth{
NSDateFormatter *dateFormatter =[[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd 00:00:00"];
NSDate *oldDate =[dateFormatter dateFromString:dateString];
NSTimeInterval intervalTime = [oldDate timeIntervalSince1970];
intervalTime =intervalTime +(8*60*60);
oldDate = [NSDate dateWithTimeIntervalSince1970:intervalTime];
NSDateComponents *dateComponents = [[NSDateComponents alloc] init];
if (addBool) {
dateComponents.month = + numMonth;
}else{
dateComponents.month = - numMonth;
}
NSDate *newDate = [[NSCalendar currentCalendar] dateByAddingComponents:dateComponents toDate:oldDate options:0];
return newDate;
}
+(NSString *)StringFromDateHHmmss:(long) value{
NSString *str1=[NSString stringWithFormat:@"%ld",value];
long x=[[str1 substringToIndex:10] longLongValue];
NSDate *newDate = [NSDate dateWithTimeIntervalSince1970:x];
NSDateFormatter *dateformatter=[[NSDateFormatter alloc]init];
[dateformatter setDateFormat:@"yyyy-MM-dd HH:mm"];
NSString *ymdhmStr= [dateformatter stringFromDate:newDate];
return ymdhmStr;
}
+(NSString *)StringFromDateMMDD:(long)value{
NSString *str1=[NSString stringWithFormat:@"%ld",value];
long x=[[str1 substringToIndex:10] longLongValue];
NSDate *newDate = [NSDate dateWithTimeIntervalSince1970:x];
NSDateFormatter *dateformatter=[[NSDateFormatter alloc]init];
[dateformatter setDateFormat:@"yyyy-MM-dd"];
NSString *ymdhmStr= [dateformatter stringFromDate:newDate];
return ymdhmStr;
}
+ (NSString *)FindWeekThroughTimestam:(long) value{
NSString *str1=[NSString stringWithFormat:@"%ld",value];
long data =[[str1 substringToIndex:10] longLongValue];
NSArray *weekdays = [NSArray arrayWithObjects: [NSNull null], @"周日", @"周一", @"周二", @"周三", @"周四", @"周五", @"周六", nil];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSCalendarUnit calendarUnit = NSCalendarUnitWeekday;
NSDate *newDate = [NSDate dateWithTimeIntervalSince1970:data];
NSDateComponents *theComponents = [calendar components:calendarUnit fromDate:newDate];
NSString *weekStr = [weekdays objectAtIndex:theComponents.weekday];
return weekStr;
}
+ (BOOL)isConnectionAvailable{
BOOL isExistenceNetwork = YES;
Reachability *reach = [Reachability reachabilityWithHostName:@"www.baidu.com"];
switch ([reach currentReachabilityStatus]) {
case NotReachable:
isExistenceNetwork = NO;
//NSLog(@"notReachable");
break;
case ReachableViaWiFi:
isExistenceNetwork = YES;
//NSLog(@"WIFI");
break;
case ReachableViaWWAN:
isExistenceNetwork = YES;
//NSLog(@"3G");
break;
}
return isExistenceNetwork;
}
+ (UIColor *)colorWithHexString:(NSString *)color{
NSString *cString = [[color stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
// String should be 6 or 8 characters
if ([cString length] < 6) {
return [UIColor clearColor];
}
// strip "0X" or "#" if it appears
if ([cString hasPrefix:@"0X"])
cString = [cString substringFromIndex:2];
if ([cString hasPrefix:@"#"])
cString = [cString substringFromIndex:1];
if ([cString length] != 6)
return [UIColor clearColor];
// Separate into r, g, b substrings
NSRange range;
range.location = 0;
range.length = 2;
//r
NSString *rString = [cString substringWithRange:range];
//g
range.location = 2;
NSString *gString = [cString substringWithRange:range];
//b
range.location = 4;
NSString *bString = [cString substringWithRange:range];
// Scan values
unsigned int r, g, b;
[[NSScanner scannerWithString:rString] scanHexInt:&r];
[[NSScanner scannerWithString:gString] scanHexInt:&g];
[[NSScanner scannerWithString:bString] scanHexInt:&b];
return [UIColor colorWithRed:((float) r / 255.0f) green:((float) g / 255.0f) blue:((float) b / 255.0f) alpha:1.0f];
}
+(void)alterViewShow:(NSString *)message viewcontroller:(UIViewController *)controller stayTime:(int)time{
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"温馨提示" message:message preferredStyle:UIAlertControllerStyleAlert];
[controller presentViewController:alert animated:YES completion:^{
//延迟1秒自动消失
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(time * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[alert dismissViewControllerAnimated:YES completion:nil];
});
}];
}
+ (NSString *)isBlankString:(NSString *)string {
if (string == nil || string == NULL || string == 0) {
return @"";
}
if ([string isKindOfClass:[NSNull class]]) {
return @"";
}
if ([[string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] length]==0) {
return @"";
}
return string;
}
+ (long)isBlankLong:(long)lng{
if (lng ==0 ) {
return (long)@"";
}
return lng;
}
+(void)lableWordWrap:(UILabel *)label andfont:(int)font{
label.numberOfLines =0 ;
label.lineBreakMode = NSLineBreakByWordWrapping;
if (font!=0) {
label.font = [UIFont systemFontOfSize:font];
}
}
+ (CGSize)sizeWithText:(NSString *)text font:(UIFont *)font maxSize:(CGSize)maxSize
{
NSDictionary *attrs = @{NSFontAttributeName : font};
return [text boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:attrs context:nil].size;
}
+ (CGFloat)getHeightByWidth:(CGFloat)width title:(NSString *)title font:(UIFont *)font
{
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, width, 0)];
label.text = title;
label.font = font;
label.numberOfLines = 0;
[label sizeToFit];
CGFloat height = label.frame.size.height;
return height;
}
+ (CGFloat)getWidthWithTitle:(NSString *)title font:(UIFont *)font {
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 1000, 0)];
label.text = title;
label.font = font;
[label sizeToFit];
return label.frame.size.width;
}
///压缩图片
+ (NSData *)compressdePNGImage:(UIImage *)image{
CGSize imagesize =image.size;
imagesize.height =imagesize.height/4;
imagesize.width =imagesize.width/4;
UIImage * imageNew = [self imageWithPNGImage:image scaledToSize:imagesize];
return UIImagePNGRepresentation(imageNew);
}
// 重绘图片大小
+ (UIImage *)imageWithPNGImage:(UIImage*)image scaledToSize:(CGSize)newSize{
UIGraphicsBeginImageContext(newSize);
//重绘
[image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}