BYFoundationLog

Xcode控制台的格式化输出中文（Unicode）JSON 对象

Usage

直接将 BYFoundationLog.m 文件拖入项目中即可使用

Principle

Xcode 控制台中在输出 Array、Set、Dictionary 时，其中的中文字符会变成Unicode编码 如"\U67cf\U8367"

我们可以重写这些类的输出方法,实现中文字符的输出:

 - (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level

Effect

在控制台输出一个 Dictionary:

NSData *strData = [@"str -> data格式的字符串" dataUsingEncoding:NSUTF8StringEncoding];

NSData *dicData = [NSJSONSerialization dataWithJSONObject:@{@"key0": @"字典 -> data 的数据",}
						  options:NSJSONWritingPrettyPrinted
						    error:nil];

NSMutableSet *set = [NSMutableSet setWithArray:@[@"set0",
					     strData,
					     dicData]];
NSDictionary *dic = @{@"name"  : @"BY",
		   @"My bolg" : @"http://qiubaiying.top",
		   @"count" : @(11),
		   @"strData" : strData,
		   @"dicData" : dicData,
		   @"set"     : set,
		   @"Unicode" : @"😀😁🤣😂😄",
		   @"contact" : @[@"BY Blog:http://qiubaiying.top",
				  @"GitHub:https://github.com/qiubaiying",
				  @"简书:https://http://www.jianshu.com/u/e71990ada2fd"]};
NSLog(@"%@", dic);

没有 BYFoundationLog.m 时的输出：

2017-03-01 10:36:45.709 BYFoundationLog_Demo[1657:53604] {
    "My bolg" = "http://qiubaiying.top";
    Unicode = "\Ud83d\Ude00\Ud83d\Ude01\Ud83e\Udd23\Ud83d\Ude02\Ud83d\Ude04";
    contact =     (
	"BY Blog:http://qiubaiying.top",
	"GitHub:https://github.com/qiubaiying",
	"\U7b80\U4e66:https://http://www.jianshu.com/u/e71990ada2fd"
    );
    count = 11;
    dicData = <7b0a2020 226b6579 3022203a 2022e5ad 97e585b8 202d3e20 64617461 20e79a84 e695b0e6 8dae220a 7d>;
    name = BY;
    set = "{(\n    <73747220 2d3e2064 617461e6 a0bce5bc 8fe79a84 e5ad97e7 aca6e4b8 b2>,\n    set0,\n    <7b0a2020 226b6579 3022203a 2022e5ad 97e585b8 202d3e20 64617461 20e79a84 e695b0e6 8dae220a 7d>\n)}";
    strData = <73747220 2d3e2064 617461e6 a0bce5bc 8fe79a84 e5ad97e7 aca6e4b8 b2>;
}


```	

### 导入 `BYFoundationLog.m`，输出：


```objc
2017-03-01 10:35:52.545 BYFoundationLog_Demo[1635:52772] 	{
	set = 	{(
		"str -> data格式的字符串",
		"set0",
			{
			key0 = "字典 -> data 的数据",
		},
	)},
	Unicode = "😀😁🤣😂😄",
	strData = "str -> data格式的字符串",
	count = 11,
	dicData = 	{
		key0 = "字典 -> data 的数据",
	},
	contact = 	(
		"BY Blog:http://qiubaiying.top",
		"GitHub:https://github.com/qiubaiying",
		"简书:https://http://www.jianshu.com/u/e71990ada2fd",
	),
	name = "BY",
	My bolg = "http://qiubaiying.top",
}

Method

以 NSArray 为例：

创建一个 NSArray 的分类，重写输出方法

@implementation NSArray (Log)

- (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level {
    NSMutableString *desc = [NSMutableString string];
    
    NSMutableString *tabString = [[NSMutableString alloc] initWithCapacity:level];
    for (NSUInteger i = 0; i < level; ++i) {
        [tabString appendString:@"\t"];
    }
    
    NSString *tab = @"";
    if (level > 0) {
        tab = tabString;
    }
    [desc appendString:@"\t(\n"];
    
    for (id obj in self) {
        if ([obj isKindOfClass:[NSDictionary class]]
            || [obj isKindOfClass:[NSArray class]]
            || [obj isKindOfClass:[NSSet class]]) {
            NSString *str = [((NSDictionary *)obj) descriptionWithLocale:locale indent:level + 1];
            [desc appendFormat:@"%@\t%@,\n", tab, str];
        } else if ([obj isKindOfClass:[NSString class]]) {
            [desc appendFormat:@"%@\t\"%@\",\n", tab, obj];
        } else if ([obj isKindOfClass:[NSData class]]) {
            
            NSError *error = nil;
            NSObject *result =  [NSJSONSerialization JSONObjectWithData:obj
                                                                options:NSJSONReadingMutableContainers
                                                                  error:&error];
            
            if (error == nil && result != nil) {
                if ([result isKindOfClass:[NSDictionary class]]
                    || [result isKindOfClass:[NSArray class]]
                    || [result isKindOfClass:[NSSet class]]) {
                    NSString *str = [((NSDictionary *)result) descriptionWithLocale:locale indent:level + 1];
                    [desc appendFormat:@"%@\t%@,\n", tab, str];
                } else if ([obj isKindOfClass:[NSString class]]) {
                    [desc appendFormat:@"%@\t\"%@\",\n", tab, result];
                }
            } else {
                @try {
                    NSString *str = [[NSString alloc] initWithData:obj encoding:NSUTF8StringEncoding];
                    if (str != nil) {
                        [desc appendFormat:@"%@\t\"%@\",\n", tab, str];
                    } else {
                        [desc appendFormat:@"%@\t%@,\n", tab, obj];
                    }
                }
                @catch (NSException *exception) {
                    [desc appendFormat:@"%@\t%@,\n", tab, obj];
                }
            }
        } else {
            [desc appendFormat:@"%@\t%@,\n", tab, obj];
        }
    }
    
    [desc appendFormat:@"%@)", tab];
    
    return desc;
}

@end

NSSet、NSDictionary 与 NSArray 实现方法类似。