iOS常用转换
//图片转字符串
-(NSString *)UIImageToBase64Str:(UIImage *) image
{
NSData *data = UIImageJPEGRepresentation(image, 1.0f);
NSString *encodedImageStr = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
return encodedImageStr;
}
//字符串转图片
-(UIImage *)Base64StrToUIImage:(NSString *)_encodedImageStr
{
NSData *_decodedImageData = [[NSData alloc] initWithBase64Encoding:_encodedImageStr];
UIImage *_decodedImage = [UIImage imageWithData:_decodedImageData];
return _decodedImage;
}
//判断软件版本
+(NSString*)appVersion{
NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];
CFShow((__bridgeCFTypeRef)(infoDictionary));
return [infoDictionary objectForKey:@"CFBundleShortVersionString"];
}
//是否纯数字
+(BOOL)isPureNumandCharacters:(NSString*)string
{
string = [stringstringByTrimmingCharactersInSet:[NSCharacterSet decimalDigitCharacterSet]];
if(string.length>0)
{
returnNO;
}
return YES;
}
//jsonstring ---> nsdictionary
+(NSDictionary*)dictionaryWithJsonString:(NSString*)jsonstr
{
if(jsonstr ==nil) {
returnnil;
}
NSData *jsonData = [jsonstr dataUsingEncoding:NSUTF8StringEncoding];
NSError*err;
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData
options:NSJSONReadingMutableContainers
error:&err];
if(err) {
DLog(@"json解析失败：%@",err);
returnnil;
}
returndic;
}
//nsdictionary ---> nsstring
+(NSString*)convertToJsonData:(NSDictionary*)dict
{
NSError*error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
NSString*jsonString;
if(!jsonData) {
DLog(@"error = %@",error);
}else{
jsonString = [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];
}
NSMutableString *mutStr =[NSMutableString stringWithString:jsonString];
NSRangerange = {0,jsonString.length};
//去掉字符串空格
[mutStrreplaceOccurrencesOfString:@" " withString:@"" options:NSLiteralSearch range:range];
NSRangerange2 = {0,mutStr.length};
//去掉换行
[mutStrreplaceOccurrencesOfString:@"\n" withString:@"" options:NSLiteralSearch range:range2];
returnmutStr;
}
//当前字符串转为颜色值
+ (UIColor*)getColor:(NSString*)hexColor
{
unsignedintred,green,blue;
NSRangerange;
range.length=2;
range.location=0;
[[NSScanner scannerWithString:[hexColor substringWithRange:range]] scanHexInt:&red];
range.location=2;
[[NSScanner scannerWithString:[hexColor substringWithRange:range]] scanHexInt:&green];
range.location=4;
[[NSScanner scannerWithString:[hexColor substringWithRange:range]] scanHexInt:&blue];
return[UIColorcolorWithRed:(float)(red/255.0f)green:(float)(green /255.0f)blue:(float)(blue /255.0f)alpha:1.0f];
}
//比较两个时间的大小
+(NSInteger)compareDataTimeWith:(NSString*)oneTime anotherTime:(NSString*)anotherTime
{
//NSInteger aa;
NSDateFormatter *dateformater = [[NSDateFormatter alloc] init];
[dateformatersetDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *dta = [[NSDate alloc] init];
NSDate *dtb = [[NSDate alloc] init];
dta = [dateformaterdateFromString:oneTime];
dtb = [dateformaterdateFromString:anotherTime];
NSTimeInterval secs = [dtb timeIntervalSinceDate:dta];
if(secs ==0)
return0; //两个时间相等
elseif(secs >0)
return1; //后面时间大
else
return-1; //前面时间大
}
//秒转换为时分
+ (NSString*)timeFormatted:(int)totalSeconds
{
intseconds = totalSeconds %60;
intminutes = (totalSeconds /60) %60;
inthours = totalSeconds /3600;
if(totalSeconds>=3600) {
return[NSStringstringWithFormat:@"%02d:%02d:%02d",hours, minutes, seconds];
}else
return[NSStringstringWithFormat:@"%02d:%02d",minutes,seconds];
}
//获取Wi-Fi的ip地址
+(NSString*)GetWiFiIPAddressAA
{
BOOLsuccess;
structifaddrs* addrs;
conststructifaddrs* temp_addr;
NSString*address =@"";
success = (getifaddrs(&addrs)==0);
if(!success){
DLog(@"fail = has error......");
returnnil;
}
temp_addr=addrs;
while(temp_addr !=NULL) {
// Check if interface is en0 which is the wifi connection on the iPhone
if ([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"] || [[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"pdp_ip0"])
{
//如果是IPV4地址，直接转化
if(temp_addr->ifa_addr->sa_family==AF_INET){// Get NSString from C String
address = [selfformatIPV4Address:((structsockaddr_in*)temp_addr->ifa_addr)->sin_addr];
}elseif(temp_addr->ifa_addr->sa_family==AF_INET6){//如果是IPV6地址
address = [selfformatIPV6Address:((structsockaddr_in6*)temp_addr->ifa_addr)->sin6_addr];
if(address && ![addressisEqualToString:@""] && ![address.uppercaseStringhasPrefix:@"FE80"])break;
}
}
temp_addr = temp_addr->ifa_next;
}
returnaddress;
}
//单个文件的大小
+ (NSString*)fileSizeAtPath:(NSString*) filePath
{
NSFileManager* managerFile = [NSFileManager defaultManager];
if([managerFilefileExistsAtPath:filePath]){
CGFloatoSize =[[managerFileattributesOfItemAtPath:filePatherror:nil]fileSize]/1024.0;
if(oSize<1024.0) {
return [NSString stringWithFormat:@"%.2f KB",oSize];
}elseif(oSize<(1024.0*1024.0)) {
return[NSStringstringWithFormat:@"%.2f M",oSize/1024];
}else{
return[NSStringstringWithFormat:@"%.2f G",oSize/(1024*1024)];
}
}
return @"0";
}
//颜色值转为数组
+(NSArray*)getRGBWithColor:(UIColor*)color
{
CGFloatred =0.0;
CGFloatgreen =0.0;
CGFloatblue =0.0;
CGFloatalpha =0.0;
[colorgetRed:&redgreen:&greenblue:&bluealpha:&alpha];
return@[@(red *255.0),@(green *255.0),@(blue *255.0),@(alpha)];
}
//检测软件通知开关是否打开
+(BOOL)isUserNotificationEnable
{
BOOLisEnable=NO;
if([[UIDevice currentDevice].systemVersion floatValue]>=8.0f)
{
UIUserNotificationSettings *setting=[[UIApplication sharedApplication]currentUserNotificationSettings];
isEnable=(UIUserNotificationTypeNone==setting.types) ?NO:YES;
}
else
{
UIRemoteNotificationType type=[[UIApplication sharedApplication]enabledRemoteNotificationTypes];
isEnable=(UIRemoteNotificationTypeNone== type) ?NO:YES;
}
returnisEnable;
}
//获取一周的时间日期
+(NSMutableArray*)getOneWeekDate
{
NSMutableArray *weekArray=[NSMutableArray array];
NSDate *today=[NSDate date];
NSDateFormatter *dateformatter=[[NSDateFormatter alloc] init];
[dateformattersetDateFormat:DATE_MD];
NSCalendar * cal=[NSCalendar currentCalendar];
NSUInteger unitFlags=NSCalendarUnitDay | NSCalendarUnitMonth;
NSString*todayDay=NSLocalizedString(@"Today",nil);
NSTimeIntervalnoeday=24*60*60*1;
for(intdis=6; dis>0; dis--) {
NSDate*theDate = [todayinitWithTimeIntervalSinceNow: -noeday*dis];
NSDateComponents* conponent= [calcomponents:unitFlagsfromDate:theDate];
NSIntegermonth=[conponentmonth];
NSIntegerday=[conponentday];
NSString*weakday=[NSStringstringWithFormat:@"%2ld/%2ld",(long)day,(long)month];
[weekArrayaddObject:weakday];
}
[weekArrayaddObject:todayDay];
returnweekArray;
}
//utf8编码
+(NSString*)encoding_utf8StringWithstr:(NSString*)str
{
return (NSString *)CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(NULL,(CFStringRef)str,NULL,(CFStringRef)@"!*'();:@&=+$,/?%#[]",kCFStringEncodingUTF8 ));
}
//utf8解码
+(NSString*)decoding_utf8stringwithencStr:(NSString*)encStr
{
return [encStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
}
