給NSDictionary和NSArray添加一個(gè)分類(lèi)篱蝇，重寫(xiě)descriptionWithLocale方法匿沛，在該方法中拼接元素格式化輸出。
//重寫(xiě)系統(tǒng)的方法控制輸出 indent 縮進(jìn)
- (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level
代碼@implementation NSDictionary (Log)
#ifdef DEBUG
//重寫(xiě)系統(tǒng)的方法控制輸出 indent 縮進(jìn)
- (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level
{
NSMutableString *mStr = [NSMutableString string];
NSMutableString *tabStr = [NSMutableString stringWithString:@""];
for (int i = 0; i < level; i++) {
[tabStr appendString:@"\t"];
}
[mStr appendString:@"{\n"];
NSArray *allKey = self.allKeys;
for (int i = 0; i < allKey.count; i++) {
id value = self[allKey[i]];
NSString *lastSymbol = (allKey.count == i + 1) ? @"":@",";
if ([value respondsToSelector:@selector(descriptionWithLocale:indent:)]) {
[mStr appendFormat:@"\t%@%@ = %@%@\n",tabStr,allKey[i],[value descriptionWithLocale:locale indent:level + 1],lastSymbol];
} else {
[mStr appendFormat:@"\t%@%@ = %@%@\n",tabStr,allKey[i],value,lastSymbol];
}
}
[mStr appendFormat:@"%@}",tabStr];
return mStr;
}
@end
@implementation NSArray (Log)
//重寫(xiě)系統(tǒng)的方法控制輸出 indent 縮進(jìn)
-(NSString *)descriptionWithLocale:(id)locale indent: (NSUInteger)level
{
NSMutableString *mStr = [NSMutableString string];
NSMutableString *tabStr = [NSMutableString stringWithString:@""];
for (int i = 0; i < level; i++) {
[tabStr appendString:@"\t"];
}
[mStr appendString:@"[\n"];
for (int i = 0; i < self.count; i++) {
NSString *lastSymbol = (self.count == i + 1) ? @"":@",";
id value = self[i];
if ([value respondsToSelector:@selector(descriptionWithLocale:indent:)]) {
[mStr appendFormat:@"\t%@%@%@\n",tabStr,[value descriptionWithLocale:locale indent:level + 1],lastSymbol];
} else {
[mStr appendFormat:@"\t%@%@%@\n",tabStr,value,lastSymbol];
}
}
[mStr appendFormat:@"%@]",tabStr];
return mStr;
}
#endif
@end
