CommonFun.m
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//
// CommonFun.m
// B2CMall
//
// Created by 钱鋆 on 2019/4/8.
// Copyright © 2019 Facebook. All rights reserved.
//
#import "CommonFun.h"
// CC_MD5
#import <CommonCrypto/CommonDigest.h>
#import <netdb.h>
#include <arpa/inet.h>
@implementation CommonFun
+ (instancetype)sharedInstance {
static id sharedInstance = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
sharedInstance = [[self alloc] init];
});
return sharedInstance;
}
- (NSString *)f_toJSONString:(id)theData
{
NSString *_str_json = nil;
if (theData) {
if ([theData isKindOfClass:[NSDictionary class]] || [theData isKindOfClass:[NSMutableDictionary class]] || [theData isKindOfClass:[NSArray class]] || [theData isKindOfClass:[NSMutableArray class]]) {
NSData *_data_json = [NSJSONSerialization dataWithJSONObject:theData
options:NSJSONWritingPrettyPrinted
error:nil];
if (_data_json) {
_str_json = [[NSString alloc] initWithData:_data_json
encoding:NSUTF8StringEncoding];
}
}
}
return _str_json;
}
- (NSDictionary *)f_jsonStringToDic:(NSString *)jsonString {
if (jsonString == nil) {
return nil;
}
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *err;
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData
options:NSJSONReadingMutableContainers
error:&err];
if(err) {
NSLog(@"json解析失败：%@",err);
return nil;
}
return dic;
}
- (NSMutableDictionary *)f_jsonDataToDic:(NSData *)jsonData option:(NSJSONReadingOptions)option {
NSError *_err_temp;
if (jsonData) {
NSMutableDictionary *_muDic_json = [NSJSONSerialization
JSONObjectWithData:jsonData
options:option error:&_err_temp];
if (_muDic_json && _muDic_json.count > 0) {
return _muDic_json;
}
}
return nil;
}
#pragma mark － type 1:空白 2:换行 默认 空白＋换行
+(NSString *)deleteWhitespaceNewline:(NSString *)str type:(int)type
{
switch (type) {
case 1:
return [str stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
break;
case 2:
return [str stringByTrimmingCharactersInSet:[NSCharacterSet newlineCharacterSet]];
break;
default:
return [str stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
break;
}
}
#pragma mark － string是否为空（null也算）
+ (BOOL) isBlankOrNullString:(NSString *)string {
if (string == nil || string == NULL) {
return YES;
}
if ([string isKindOfClass:[NSNull class]]) {
return YES;
}
if ([[string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] length]==0) {
return YES;
}
return NO;
}
#pragma mark - dic/array转为jsonString
/**
* @author qianjun
*
* @brief dic/array转为jsonString
*
* @param theData dic/array
*
* @return jsonString
*/
- (NSString *)event_toJSONString:(id)theData
{
if(theData)
{
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:theData
options:NSJSONWritingPrettyPrinted
error:nil];
NSString *jsonString = [[NSString alloc] initWithData:jsonData
encoding:NSUTF8StringEncoding];
return jsonString;
}
return nil;
}
#pragma mark - 当前视图
- (UIViewController *)topViewController {
UIViewController *resultVC;
resultVC = [self _topViewController:[[UIApplication sharedApplication].keyWindow rootViewController]];
if ([resultVC isKindOfClass:[UIViewController class]]) {
return resultVC;
}
while (resultVC.presentedViewController) {
// 如果是UIAlertController忽略掉
if([[self _topViewController:resultVC.presentedViewController] isKindOfClass:[UIAlertController class]]){
break;
}else{
resultVC = [self _topViewController:resultVC.presentedViewController];
}
}
return resultVC;
}
- (UIViewController *)_topViewController:(UIViewController *)vc {
if ([vc isKindOfClass:[UINavigationController class]]) {
return [self _topViewController:[(UINavigationController *)vc topViewController]];
} else if ([vc isKindOfClass:[UITabBarController class]]) {
return [self _topViewController:[(UITabBarController *)vc selectedViewController]];
} else {
return vc;
}
return nil;
}
#pragma mark - MD5 32位加密
+(NSString *)md5_32:(NSString *)str bool_isUpper:(BOOL)bool_isUpper
{
const char *cStr = [str UTF8String];
unsigned char result[32];
CC_MD5(cStr, (CC_LONG)strlen(cStr), result);
NSMutableString *hash = [NSMutableString string];
for (int i = 0; i < 16; i++)
{
[hash appendFormat:@"%02X", result[i]];
}
if (bool_isUpper) {
return [hash uppercaseString];
}else{
return [hash lowercaseString];
}
}
#pragma mark -获取字符串形式的当前时间(默认yyyy-MM-dd HH:mm:ss)
+(NSString *)getDateTimeString:(NSDateFormatter *)dateFormatter
{
if (dateFormatter == nil) {
dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.SSS"];
}
NSDate *dateNow = [NSDate date];
return [dateFormatter stringFromDate:dateNow];
}
@end