1. 获取磁盘总空间大小
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//磁盘总空间
+ (cgfloat)diskofallsizembytes{
cgfloat size = 0.0;
nserror *error;
nsdictionary *dic = [[nsfilemanager defaultmanager] attributesoffilesystemforpath:nshomedirectory() error:&error];
if (error) {
#ifdef debug
nslog(@"error: %@", error.localizeddescription);
#endif
}else{
nsnumber *number = [dic objectforkey:nsfilesystemsize];
size = [number floatvalue]/1024/1024;
}
return size;
}
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2. 获取磁盘可用空间大小
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//磁盘可用空间
+ (cgfloat)diskoffreesizembytes{
cgfloat size = 0.0;
nserror *error;
nsdictionary *dic = [[nsfilemanager defaultmanager] attributesoffilesystemforpath:nshomedirectory() error:&error];
if (error) {
#ifdef debug
nslog(@"error: %@", error.localizeddescription);
#endif
}else{
nsnumber *number = [dic objectforkey:nsfilesystemfreesize];
size = [number floatvalue]/1024/1024;
}
return size;
}
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3. 获取指定路径下某个文件的大小
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//获取文件大小
+ (long long)filesizeatpath:(nsstring *)filepath{
nsfilemanager *filemanager = [nsfilemanager defaultmanager];
if (![filemanager fileexistsatpath:filepath]) return 0;
return [[filemanager attributesofitematpath:filepath error:nil] filesize];
}
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4. 获取文件夹下所有文件的大小
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//获取文件夹下所有文件的大小
+ (long long)foldersizeatpath:(nsstring *)folderpath{
nsfilemanager *filemanager = [nsfilemanager defaultmanager];
if (![filemanager fileexistsatpath:folderpath]) return 0;
nsenumerator *filesenumerator = [[filemanager subpathsatpath:folderpath] objectenumerator];
nsstring *filename;
long long folersize = 0;
while ((filename = [filesenumerator nextobject]) != nil) {
nsstring *filepath = [folderpath stringbyappendingpathcomponent:filename];
folersize += [self filesizeatpath:filepath];
}
return folersize;
}
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5. 获取字符串(或汉字)首字母
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//获取字符串(或汉字)首字母
+ (nsstring *)firstcharacterwithstring:(nsstring *)string{
nsmutablestring *str = [nsmutablestring stringwithstring:string];
cfstringtransform((cfmutablestringref)str, null, kcfstringtransformmandarinlatin, no);
cfstringtransform((cfmutablestringref)str, null, kcfstringtransformstripdiacritics, no);
nsstring *pingyin = [str capitalizedstring];
return [pingyin substringtoindex:1];
}
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6. 将字符串数组按照元素首字母顺序进行排序分组
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//将字符串数组按照元素首字母顺序进行排序分组
+ (nsdictionary *)dictionaryorderbycharacterwithoriginalarray:(nsarray *)array{
if (array.count == 0) {
return nil;
}
for (id obj in array) {
if (![obj iskindofclass:[nsstring class]]) {
return nil;
}
}
uilocalizedindexedcollation *indexedcollation = [uilocalizedindexedcollation currentcollation];
nsmutablearray *objects = [nsmutablearray arraywithcapacity:indexedcollation.sectiontitles.count];
//创建27个分组数组
for (int i = 0; i < indexedcollation.sectiontitles.count; i++) {
nsmutablearray *obj = [nsmutablearray array];
[objects addobject:obj];
}
nsmutablearray *keys = [nsmutablearray arraywithcapacity:objects.count];
//按字母顺序进行分组
nsinteger lastindex = -1;
for (int i = 0; i < array.count; i++) {
nsinteger index = [indexedcollation sectionforobject:array[i] collationstringselector:@selector(uppercasestring)];
[[objects objectatindex:index] addobject:array[i]];
lastindex = index;
}
//去掉空数组
for (int i = 0; i < objects.count; i++) {
nsmutablearray *obj = objects[i];
if (obj.count == 0) {
[objects removeobject:obj];
}
}
//获取索引字母
for (nsmutablearray *obj in objects) {
nsstring *str = obj[0];
nsstring *key = [self firstcharacterwithstring:str];
[keys addobject:key];
}
nsmutabledictionary *dic = [nsmutabledictionary dictionary];
[dic setobject:objects forkey:keys];
return dic;
}
//获取字符串(或汉字)首字母
+ (nsstring *)firstcharacterwithstring:(nsstring *)string{
nsmutablestring *str = [nsmutablestring stringwithstring:string];
cfstringtransform((cfmutablestringref)str, null, kcfstringtransformmandarinlatin, no);
cfstringtransform((cfmutablestringref)str, null, kcfstringtransformstripdiacritics, no);
nsstring *pingyin = [str capitalizedstring];
return [pingyin substringtoindex:1];
}
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使用如下:
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nsarray *arr = @[@"guangzhou", @"shanghai", @"北京", @"henan", @"hainan"];
nsdictionary *dic = [utilities dictionaryorderbycharacterwithoriginalarray:arr];
nslog(@"\n\ndic: %@", dic);
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输出结果如下:
输出结果
7. 获取当前时间
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//获取当前时间
//format: @"yyyy-mm-dd hh:mm:ss"、@"yyyy年mm月dd日 hh时mm分ss秒"
+ (nsstring *)currentdatewithformat:(nsstring *)format{
nsdateformatter *dateformatter = [[nsdateformatter alloc] init];
[dateformatter setdateformat:format];
return [dateformatter stringfromdate:[nsdate date]];
}
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8. 计算上次日期距离现在多久, 如 xx 小时前、xx 分钟前等
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/**
* 计算上次日期距离现在多久
*
* @param lasttime 上次日期(需要和格式对应)
* @param format1 上次日期格式
* @param currenttime 最近日期(需要和格式对应)
* @param format2 最近日期格式
*
* @return xx分钟前、xx小时前、xx天前
*/
+ (nsstring *)timeintervalfromlasttime:(nsstring *)lasttime
lasttimeformat:(nsstring *)format1
tocurrenttime:(nsstring *)currenttime
currenttimeformat:(nsstring *)format2{
//上次时间
nsdateformatter *dateformatter1 = [[nsdateformatter alloc]init];
dateformatter1.dateformat = format1;
nsdate *lastdate = [dateformatter1 datefromstring:lasttime];
//当前时间
nsdateformatter *dateformatter2 = [[nsdateformatter alloc]init];
dateformatter2.dateformat = format2;
nsdate *currentdate = [dateformatter2 datefromstring:currenttime];
return [utilities timeintervalfromlasttime:lastdate tocurrenttime:currentdate];
}
+ (nsstring *)timeintervalfromlasttime:(nsdate *)lasttime tocurrenttime:(nsdate *)currenttime{
nstimezone *timezone = [nstimezone systemtimezone];
//上次时间
nsdate *lastdate = [lasttime datebyaddingtimeinterval:[timezone secondsfromgmtfordate:lasttime]];
//当前时间
nsdate *currentdate = [currenttime datebyaddingtimeinterval:[timezone secondsfromgmtfordate:currenttime]];
//时间间隔
nsinteger intevaltime = [currentdate timeintervalsincereferencedate] - [lastdate timeintervalsincereferencedate];
//秒、分、小时、天、月、年
nsinteger minutes = intevaltime / 60;
nsinteger hours = intevaltime / 60 / 60;
nsinteger day = intevaltime / 60 / 60 / 24;
nsinteger month = intevaltime / 60 / 60 / 24 / 30;
nsinteger yers = intevaltime / 60 / 60 / 24 / 365;
if (minutes <= 10) {
return @"刚刚";
}else if (minutes < 60){
return [nsstring stringwithformat: @"%ld分钟前",(long)minutes];
}else if (hours < 24){
return [nsstring stringwithformat: @"%ld小时前",(long)hours];
}else if (day < 30){
return [nsstring stringwithformat: @"%ld天前",(long)day];
}else if (month < 12){
nsdateformatter * df =[[nsdateformatter alloc]init];
df.dateformat = @"m月d日";
nsstring * time = [df stringfromdate:lastdate];
return time;
}else if (yers >= 1){
nsdateformatter * df =[[nsdateformatter alloc]init];
df.dateformat = @"yyyy年m月d日";
nsstring * time = [df stringfromdate:lastdate];
return time;
}
return @"";
}
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使用如下:
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nslog(@"\n\nresult: %@", [utilities timeintervalfromlasttime:@"2015年12月8日 15:50"
lasttimeformat:@"yyyy年mm月dd日 hh:mm"
tocurrenttime:@"2015/12/08 16:12"
currenttimeformat:@"yyyy/mm/dd hh:mm"]);
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输出结果如下:
输出结果
9. 判断手机号码格式是否正确
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//判断手机号码格式是否正确
+ (bool)valimobile:(nsstring *)mobile{
mobile = [mobile stringbyreplacingoccurrencesofstring:@" " withstring:@""];
if (mobile.length != 11)
{
return no;
}else{
/**
* 移动号段正则表达式
*/
nsstring *cm_num = @"^((13[4-9])|(147)|(15[0-2,7-9])|(178)|(18[2-4,7-8]))\\d{8}|(1705)\\d{7}$";
/**
* 联通号段正则表达式
*/
nsstring *cu_num = @"^((13[0-2])|(145)|(15[5-6])|(176)|(18[5,6]))\\d{8}|(1709)\\d{7}$";
/**
* 电信号段正则表达式
*/
nsstring *ct_num = @"^((133)|(153)|(177)|(18[0,1,9]))\\d{8}$";
nspredicate *pred1 = [nspredicate predicatewithformat:@"self matches %@", cm_num];
bool ismatch1 = [pred1 evaluatewithobject:mobile];
nspredicate *pred2 = [nspredicate predicatewithformat:@"self matches %@", cu_num];
bool ismatch2 = [pred2 evaluatewithobject:mobile];
nspredicate *pred3 = [nspredicate predicatewithformat:@"self matches %@", ct_num];
bool ismatch3 = [pred3 evaluatewithobject:mobile];
if (ismatch1 || ismatch2 || ismatch3) {
return yes;
}else{
return no;
}
}
}
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10. 判断邮箱格式是否正确
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//利用正则表达式验证
+ (bool)isavailableemail:(nsstring *)email {
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:email];
}
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11. 将十六进制颜色转换为 uicolor 对象
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//将十六进制颜色转换为 uicolor 对象
+ (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];
}
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12. 对图片进行滤镜处理
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#pragma mark - 对图片进行滤镜处理
// 怀旧 --> ciphotoeffectinstant 单色 --> ciphotoeffectmono
// 黑白 --> ciphotoeffectnoir 褪色 --> ciphotoeffectfade
// 色调 --> ciphotoeffecttonal 冲印 --> ciphotoeffectprocess
// 岁月 --> ciphotoeffecttransfer 铬黄 --> ciphotoeffectchrome
// cilineartosrgbtonecurve, cisrgbtonecurvetolinear, cigaussianblur, ciboxblur, cidiscblur, cisepiatone, cidepthoffield
+ (uiimage *)filterwithoriginalimage:(uiimage *)image filtername:(nsstring *)name{
cicontext *context = [cicontext contextwithoptions:nil];
ciimage *inputimage = [[ciimage alloc] initwithimage:image];
cifilter *filter = [cifilter filterwithname:name];
[filter setvalue:inputimage forkey:kciinputimagekey];
ciimage *result = [filter valueforkey:kcioutputimagekey];
cgimageref cgimage = [context createcgimage:result fromrect:[result extent]];
uiimage *resultimage = [uiimage imagewithcgimage:cgimage];
cgimagerelease(cgimage);
return resultimage;
}
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13. 对图片进行模糊处理
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#pragma mark - 对图片进行模糊处理
// cigaussianblur ---> 高斯模糊
// ciboxblur ---> 均值模糊(available in ios 9.0 and later)
// cidiscblur ---> 环形卷积模糊(available in ios 9.0 and later)
// cimedianfilter ---> 中值模糊, 用于消除图像噪点, 无需设置radius(available in ios 9.0 and later)
// cimotionblur ---> 运动模糊, 用于模拟相机移动拍摄时的扫尾效果(available in ios 9.0 and later)
+ (uiimage *)blurwithoriginalimage:(uiimage *)image blurname:(nsstring *)name radius:(nsinteger)radius{
cicontext *context = [cicontext contextwithoptions:nil];
ciimage *inputimage = [[ciimage alloc] initwithimage:image];
cifilter *filter;
if (name.length != 0) {
filter = [cifilter filterwithname:name];
[filter setvalue:inputimage forkey:kciinputimagekey];
if (![name isequaltostring:@"cimedianfilter"]) {
[filter setvalue:@(radius) forkey:@"inputradius"];
}
ciimage *result = [filter valueforkey:kcioutputimagekey];
cgimageref cgimage = [context createcgimage:result fromrect:[result extent]];
uiimage *resultimage = [uiimage imagewithcgimage:cgimage];
cgimagerelease(cgimage);
return resultimage;
}else{
return nil;
}
}
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14. 调整图片饱和度、亮度、对比度
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/**
* 调整图片饱和度, 亮度, 对比度
*
* @param image 目标图片
* @param saturation 饱和度
* @param brightness 亮度: -1.0 ~ 1.0
* @param contrast 对比度
*
*/
+ (uiimage *)colorcontrolswithoriginalimage:(uiimage *)image
saturation:(cgfloat)saturation
brightness:(cgfloat)brightness
contrast:(cgfloat)contrast{
cicontext *context = [cicontext contextwithoptions:nil];
ciimage *inputimage = [[ciimage alloc] initwithimage:image];
cifilter *filter = [cifilter filterwithname:@"cicolorcontrols"];
[filter setvalue:inputimage forkey:kciinputimagekey];
[filter setvalue:@(saturation) forkey:@"inputsaturation"];
[filter setvalue:@(brightness) forkey:@"inputbrightness"];
[filter setvalue:@(contrast) forkey:@"inputcontrast"];
ciimage *result = [filter valueforkey:kcioutputimagekey];
cgimageref cgimage = [context createcgimage:result fromrect:[result extent]];
uiimage *resultimage = [uiimage imagewithcgimage:cgimage];
cgimagerelease(cgimage);
return resultimage;
}
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15. 创建一张实时模糊效果 view (毛玻璃效果)
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//avilable in ios 8.0 and later
+ (uivisualeffectview *)effectviewwithframe:(cgrect)frame{
uiblureffect *effect = [uiblureffect effectwithstyle:uiblureffectstylelight];
uivisualeffectview *effectview = [[uivisualeffectview alloc] initwitheffect:effect];
effectview.frame = frame;
return effectview;
}
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16. 全屏截图
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//全屏截图
+ (uiimage *)shotscreen{
uiwindow *window = [uiapplication sharedapplication].keywindow;
uigraphicsbeginimagecontext(window.bounds.size);
[window.layer renderincontext:uigraphicsgetcurrentcontext()];
uiimage *image = uigraphicsgetimagefromcurrentimagecontext();
uigraphicsendimagecontext();
return image;
}
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17. 截取一张 view 生成图片
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//截取view生成一张图片
+ (uiimage *)shotwithview:(uiview *)view{
uigraphicsbeginimagecontext(view.bounds.size);
[view.layer renderincontext:uigraphicsgetcurrentcontext()];
uiimage *image = uigraphicsgetimagefromcurrentimagecontext();
uigraphicsendimagecontext();
return image;
}
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18. 截取view中某个区域生成一张图片
//截取view中某个区域生成一张图片
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+ (uiimage *)shotwithview:(uiview *)view scope:(cgrect)scope{
cgimageref imageref = cgimagecreatewithimageinrect([self shotwithview:view].cgimage, scope);
uigraphicsbeginimagecontext(scope.size);
cgcontextref context = uigraphicsgetcurrentcontext();
cgrect rect = cgrectmake(0, 0, scope.size.width, scope.size.height);
cgcontexttranslatectm(context, 0, rect.size.height);//下移
cgcontextscalectm(context, 1.0f, -1.0f);//上翻
cgcontextdrawimage(context, rect, imageref);
uiimage *image = uigraphicsgetimagefromcurrentimagecontext();
uigraphicsendimagecontext();
cgimagerelease(imageref);
cgcontextrelease(context);
return image;
}
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19. 压缩图片到指定尺寸大小
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//压缩图片到指定尺寸大小
+ (uiimage *)compressoriginalimage:(uiimage *)image tosize:(cgsize)size{
uiimage *resultimage = image;
uigraphicsbeginimagecontext(size);
[resultimage drawinrect:cgrectmake(0, 0, size.width, size.height)];
uigraphicsendimagecontext();
return resultimage;
}
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20. 压缩图片到指定文件大小
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//压缩图片到指定文件大小
+ (nsdata *)compressoriginalimage:(uiimage *)image tomaxdatasizekbytes:(cgfloat)size{
nsdata *data = uiimagejpegrepresentation(image, 1.0);
cgfloat datakbytes = data.length/1000.0;
cgfloat maxquality = 0.9f;
cgfloat lastdata = datakbytes;
while (datakbytes > size && maxquality > 0.01f) {
maxquality = maxquality - 0.01f;
data = uiimagejpegrepresentation(image, maxquality);
datakbytes = data.length/1000.0;
if (lastdata == datakbytes) {
break;
}else{
lastdata = datakbytes;
}
}
return data;
}
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21. 获取设备 ip 地址
需要先引入下头文件:
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#import <ifaddrs.h>
#import <arpa/inet.h>
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代码:
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//获取设备 ip 地址
+ (nsstring *)getipaddress {
nsstring *address = @"error";
struct ifaddrs *interfaces = null;
struct ifaddrs *temp_addr = null;
int success = 0;
success = getifaddrs(&interfaces);
if (success == 0) {
temp_addr = interfaces;
while(temp_addr != null) {
if(temp_addr->ifa_addr->sa_family == af_inet) {
if([[nsstring stringwithutf8string:temp_addr->ifa_name] isequaltostring:@"en0"]) {
address = [nsstring stringwithutf8string:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
}
}
temp_addr = temp_addr->ifa_next;
}
}
freeifaddrs(interfaces);
return address;
}
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22. 判断字符串中是否含有空格
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+ (bool)ishavespaceinstring:(nsstring *)string{
nsrange _range = [string rangeofstring:@" "];
if (_range.location != nsnotfound) {
return yes;
}else {
return no;
}
}
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23. 判断字符串中是否含有某个字符串
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+ (bool)ishavestring:(nsstring *)string1 instring:(nsstring *)string2{
nsrange _range = [string2 rangeofstring:string1];
if (_range.location != nsnotfound) {
return yes;
}else {
return no;
}
}
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24. 判断字符串中是否含有中文
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+ (bool)ishavechineseinstring:(nsstring *)string{
for(nsinteger i = 0; i < [string length]; i++){
int a = [string characteratindex:i];
if (a > 0x4e00 && a < 0x9fff) {
return yes;
}
}
return no;
}
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25. 判断字符串是否全部为数字
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+ (bool)isallnum:(nsstring *)string{
unichar c;
for (int i=0; i<string.length; i++) {
c=[string characteratindex:i];
if (!isdigit(c)) {
return no;
}
}
return yes;
}
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26. 绘制虚线
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/*
** lineframe: 虚线的 frame
** length: 虚线中短线的宽度
** spacing: 虚线中短线之间的间距
** color: 虚线中短线的颜色
*/
+ (uiview *)createdashedlinewithframe:(cgrect)lineframe
linelength:(int)length
linespacing:(int)spacing
linecolor:(uicolor *)color{
uiview *dashedline = [[uiview alloc] initwithframe:lineframe];
dashedline.backgroundcolor = [uicolor clearcolor];
cashapelayer *shapelayer = [cashapelayer layer];
[shapelayer setbounds:dashedline.bounds];
[shapelayer setposition:cgpointmake(cgrectgetwidth(dashedline.frame) / 2, cgrectgetheight(dashedline.frame))];
[shapelayer setfillcolor:[uicolor clearcolor].cgcolor];
[shapelayer setstrokecolor:color.cgcolor];
[shapelayer setlinewidth:cgrectgetheight(dashedline.frame)];
[shapelayer setlinejoin:kcalinejoinround];
[shapelayer setlinedashpattern:[nsarray arraywithobjects:[nsnumber numberwithint:length], [nsnumber numberwithint:spacing], nil]];
cgmutablepathref path = cgpathcreatemutable();
cgpathmovetopoint(path, null, 0, 0);
cgpathaddlinetopoint(path, null, cgrectgetwidth(dashedline.frame), 0);
[shapelayer setpath:path];
cgpathrelease(path);
[dashedline.layer addsublayer:shapelayer];
return dashedline;
}
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27. 将字典对象转换为 json 字符串
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+ (nsstring *)jsonprettystringencoded:(nsdictionary *)dictionary{
if ([nsjsonserialization isvalidjsonobject:dictionary ]) {
nserror *error;
nsdata *jsondata = [nsjsonserialization datawithjsonobject:dictionary options:nsjsonwritingprettyprinted error:&error];
if (!error) {
nsstring *json = [[nsstring alloc] initwithdata:jsondata encoding:nsutf8stringencoding];
return json;
}
}
return nil;
}
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28.将数组对象转换为 json 字符串
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+ (nsstring *)jsonprettystringencoded:(nsarray *)array{
if ([nsjsonserialization isvalidjsonobject:array]) {
nserror *error;
nsdata *jsondata = [nsjsonserialization datawithjsonobject:array options:nsjsonwritingprettyprinted error:&error];
if (!error) {
nsstring *json = [[nsstring alloc] initwithdata:jsondata encoding:nsutf8stringencoding];
return json;
}
}
return nil;
}
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29. 获取 wifi 信息
需要引入头文件:
#import <systemconfiguration/captivenetwork.h>
代码:
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//获取 wifi 信息
- (nsdictionary *)fetchssidinfo {
nsarray *ifs = (__bridge_transfer nsarray *)cncopysupportedinterfaces();
if (!ifs) {
return nil;
}
nsdictionary *info = nil;
for (nsstring *ifnam in ifs) {
info = (__bridge_transfer nsdictionary *)cncopycurrentnetworkinfo((__bridge cfstringref)ifnam);
if (info && [info count]) { break; }
}
return info;
}
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30. 获取广播地址、本机地址、子网掩码、端口信息
需要引入头文件:
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p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 14.0px menlo; color: #ff4647}span.s1 {font-variant-ligatures: no-common-ligatures; color: #eb905a}span.s2 {font-variant-ligatures: no-common-ligatures}
#import <ifaddrs.h>
#import <arpa/inet.h>
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//获取广播地址、本机地址、子网掩码、端口信息
- (nsmutabledictionary *)getlocalinfoforcurrentwifi {
nsmutabledictionary *dict = [nsmutabledictionary dictionary];
struct ifaddrs *interfaces = null;
struct ifaddrs *temp_addr = null;
int success = 0;
// retrieve the current interfaces - returns 0 on success
success = getifaddrs(&interfaces);
if (success == 0) {
// loop through linked list of interfaces
temp_addr = interfaces;
//*/
while(temp_addr != null) {
if(temp_addr->ifa_addr->sa_family == af_inet) {
// check if interface is en0 which is the wifi connection on the iphone
if([[nsstring stringwithutf8string:temp_addr->ifa_name] isequaltostring:@"en0"]) {
//广播地址
nsstring *broadcast = [nsstring stringwithutf8string:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_dstaddr)->sin_addr)];
if (broadcast) {
[dict setobject:broadcast forkey:@"broadcast"];
}
// nslog(@"broadcast address--%@",broadcast);
//本机地址
nsstring *localip = [nsstring stringwithutf8string:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
if (localip) {
[dict setobject:localip forkey:@"localip"];
}
// nslog(@"local device ip--%@",localip);
//子网掩码地址
nsstring *netmask = [nsstring stringwithutf8string:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_netmask)->sin_addr)];
if (netmask) {
[dict setobject:netmask forkey:@"netmask"];
}
// nslog(@"netmask--%@",netmask);
//--en0 端口地址
nsstring *interface = [nsstring stringwithutf8string:temp_addr->ifa_name];
if (interface) {
[dict setobject:interface forkey:@"interface"];
}
// nslog(@"interface--%@",interface);
return dict;
}
}
temp_addr = temp_addr->ifa_next;
}
}
// free memory
freeifaddrs(interfaces);
return dict;
}
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以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，同时也希望多多支持服务器之家！
原文链接：http://www.jianshu.com/p/997f96d2a0b5