ios字典和数组输出中文乱码

在iOS中打印字典或者数组对象，系统会默认调用字典对象和数组对象的descriptionWithLocale:方法。所以解决方案就是增加在.m文件中重写了两个descriptionWithLocale:方法

原文 >http://www.cnblogs.com/gchlcc/p/5438720.html

字典

#import "NSDictionary+Log.h"

@implementation NSDictionary (Log)

- (NSString *)descriptionWithLocale:(id)locale
{
    NSMutableString *string = [NSMutableString string];
    // 开头有个{
    [string appendString:@"{\n"];
    // 遍历所有的键值对
    [self enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
        [string appendFormat:@"\t%@", key];
        [string appendString:@" : "];
        [string appendFormat:@"%@,\n", obj];
    }];
    
    // 结尾有个}
    [string appendString:@"}"];
    // 查找最后一个逗号
    NSRange range = [string rangeOfString:@"," options:NSBackwardsSearch];
    if (range.location != NSNotFound)
        [string deleteCharactersInRange:range];
    return string;
}

@end

数组

#import "NSArray+Log.h"

@implementation NSArray (Log)

- (NSString *)descriptionWithLocale:(id)locale
{
    NSMutableString *string = [NSMutableString string];
    // 开头有个[
    [string appendString:@"[\n"];
    // 遍历所有的元素
    [self enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
        [string appendFormat:@"\t%@,\n", obj];
    }];
    
    // 结尾有个]
    [string appendString:@"]"];
    // 查找最后一个逗号
    NSRange range = [string rangeOfString:@"," options:NSBackwardsSearch];
    if (range.location != NSNotFound)
        [string deleteCharactersInRange:range];
    return string;
}

@end