iOS中解决Xcode9的Log日志无法输出中文的问题小结
来源：爱站网时间：2020-03-14编辑：网友分享
不管开发什么，我们都会使用日记来调试应用程序，这可以有效的解决程序崩溃的问题，其实也是程序员常用的手段，下面是爱站技术频道小编带给大家的iOS中解决Xcode9的Log日志无法输出中文的问题小结，一起来学习吧！
不管开发什么，我们都会使用日记来调试应用程序，这可以有效的解决程序崩溃的问题，其实也是程序员常用的手段，下面是爱站技术频道小编带给大家的iOS中解决Xcode9的Log日志无法输出中文的问题小结，一起来学习吧！
问题描述
Xcode的Log日志输出中文的问题,一般都是重写NSArray,NSDictionary的- (NSString *)descriptionWithLocale:(id)locale;方法进行处理,最近升级到Xcode9会后发现原来的处理逻辑也无法满足输出中文的需求,后台返回的状态描述涉及到中文的都变成了Unicode编码,其实这是重写的方法失效的问题,因为Xcode默认输出NSArray,NSDictionary的中文都是Unicode编码
正确的解决方案如下, 创建NSArray+ZYLog分类
NSArray+ZYLog.h文件
// // NSArray+ZYLog.h // ZYLog // // Created by zhouyu on 17/11/08. // Copyright © 2017年 zhouyu. All rights reserved. // #import <Foundation/Foundation.h> @interface NSArray (ZYLog) @end @interface NSDictionary (ZYLog) @end
NSArray+ZYLog.m文件
//
// NSArray+ZYLog.m
// ZYLog
//
// Created by zhouyu on 17/11/08.
// Copyright © 2017年 zhouyu. All rights reserved.
//
#import "NSArray+ZYLog.h"
@implementation NSArray (ZYLog)
#ifdef DEBUG
- (NSString *)description {
return [self ZY_descriptionWithLevel:1];
}
-(NSString *)descriptionWithLocale:(id)locale{
return [self ZY_descriptionWithLevel:1];
}
- (NSString *)descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {
return [self ZY_descriptionWithLevel:(int)level];
}
/**
将数组转化成字符串，文字格式UTF8,并且格式化
@param level 当前数组的层级，最少为 1，代表最外层
@return 格式化的字符串
*/
- (NSString *)ZY_descriptionWithLevel:(int)level {
NSString *subSpace = [self ZY_getSpaceWithLevel:level];
NSString *space = [self ZY_getSpaceWithLevel:level - 1];
NSMutableString *retString = [[NSMutableString alloc] init];
// 1、添加 [
[retString appendString:[NSString stringWithFormat:@"["]];
// 2、添加 value
[self enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:[NSString class]]) {
NSString *value = (NSString *)obj;
value = [value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *subString = [NSString stringWithFormat:@"\n%@\"%@\",", subSpace, value];
[retString appendString:subString];
} else if ([obj isKindOfClass:[NSArray class]]) {
NSArray *arr = (NSArray *)obj;
NSString *str = [arr ZY_descriptionWithLevel:level + 1];
str = [NSString stringWithFormat:@"\n%@%@,", subSpace, str];
[retString appendString:str];
} else if ([obj isKindOfClass:[NSDictionary class]]) {
NSDictionary *dic = (NSDictionary *)obj;
NSString *str = [dic descriptionWithLocale:nil indent:level + 1];
str = [NSString stringWithFormat:@"\n%@%@,", subSpace, str];
[retString appendString:str];
} else {
NSString *subString = [NSString stringWithFormat:@"\n%@%@,", subSpace, obj];
[retString appendString:subString];
}
}];
if ([retString hasSuffix:@","]) {
[retString deleteCharactersInRange:NSMakeRange(retString.length-1, 1)];
}
// 3、添加 ]
[retString appendString:[NSString stringWithFormat:@"\n%@]", space]];
return retString;
}
/**
根据层级，返回前面的空格占位符
@param level 层级
@return 占位空格
*/
- (NSString *)ZY_getSpaceWithLevel:(int)level {
NSMutableString *mustr = [[NSMutableString alloc] init];
for (int i=0; i<level; i++) {
[mustr appendString:@"\t"];
}
return mustr;
}
#endif
@end
@implementation NSDictionary (ZYLog)
#ifdef DEBUG
- (NSString *)description {
return [self ZY_descriptionWithLevel:1];
}
- (NSString *)descriptionWithLocale:(nullable id)locale {
return [self ZY_descriptionWithLevel:1];
}
- (NSString *)descriptionWithLocale:(nullable id)locale indent:(NSUInteger)level {
return [self ZY_descriptionWithLevel:(int)level];
}
/**
* 非字典时，会引发崩溃
*/
- (NSString *)ZY_getUTF8String {
if ([self isKindOfClass:[NSDictionary class]] == NO) {
return @"";
}
NSError *error = nil;
NSData *data = [NSJSONSerialization dataWithJSONObject:self options:NSJSONWritingPrettyPrinted error:&error];
if (error) {
return @"";
}
NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
return str;
}
/**
将字典转化成字符串，文字格式UTF8,并且格式化
@param level 当前字典的层级，最少为 1，代表最外层字典
@return 格式化的字符串
*/
- (NSString *)ZY_descriptionWithLevel:(int)level {
NSString *subSpace = [self ZY_getSpaceWithLevel:level];
NSString *space = [self ZY_getSpaceWithLevel:level - 1];
NSMutableString *retString = [[NSMutableString alloc] init];
// 1、添加 {
[retString appendString:[NSString stringWithFormat:@"{"]];
// 2、添加 key : value;
[self enumerateKeysAndObjectsUsingBlock:^(id _Nonnull key, id _Nonnull obj, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:[NSString class]]) {
NSString *value = (NSString *)obj;
value = [value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *subString = [NSString stringWithFormat:@"\n%@\"%@\" : \"%@\",", subSpace, key, value];
[retString appendString:subString];
} else if ([obj isKindOfClass:[NSDictionary class]]) {
NSDictionary *dic = (NSDictionary *)obj;
NSString *str = [dic ZY_descriptionWithLevel:level + 1];
str = [NSString stringWithFormat:@"\n%@\"%@\" : %@,", subSpace, key, str];
[retString appendString:str];
} else if ([obj isKindOfClass:[NSArray class]]) {
NSArray *arr = (NSArray *)obj;
NSString *str = [arr descriptionWithLocale:nil indent:level + 1];
str = [NSString stringWithFormat:@"\n%@\"%@\" : %@,", subSpace, key, str];
[retString appendString:str];
} else {
NSString *subString = [NSString stringWithFormat:@"\n%@\"%@\" : %@,", subSpace, key, obj];
[retString appendString:subString];
}
}];
if ([retString hasSuffix:@","]) {
[retString deleteCharactersInRange:NSMakeRange(retString.length-1, 1)];
}
// 3、添加 }
[retString appendString:[NSString stringWithFormat:@"\n%@}", space]];
return retString;
}
/**
根据层级，返回前面的空格占位符
@param level 字典的层级
@return 占位空格
*/
- (NSString *)ZY_getSpaceWithLevel:(int)level {
NSMutableString *mustr = [[NSMutableString alloc] init];
for (int i=0; i<level; i++) {
[mustr appendString:@"\t"];
}
return mustr;
}
#endif
@end
效果
而且直接就是json串,复制log日志,直接在json格式化工具中使用
参考
JLLogEncoding
iOS中解决Xcode9的Log日志无法输出中文的问题小结的全部介绍都在这里了，相信小编的介绍对大家有一定的帮助，收藏js.aizhan.com，你绝对优先掌握很多学习的知识。
