xcode调试 打印 格式化输出对象属性

1 重写 - (NSString *)description{} 方法 打印完整日志

2 重写 - (NSString *)debugDescription{} 方法控制台打印

- (NSString *)description{

NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithCapacity:0];

uint count;

objc_property_t *properties = class_copyPropertyList([self class], &count);

for (int i = 0 ; i < count; i++) {

objc_property_t property = properties[i];

NSString *name = @(property_getName(property));

id value = [self valueForKey:name]?:@"nil";

[dict setObject:value forKey:name];

}

free(properties);

return [NSString stringWithFormat:@"<%@:%p>%@",[self class],self,dict];

}

- (NSString *)debugDescription{

NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithCapacity:0];

uint count;

objc_property_t *properties = class_copyPropertyList([self class], &count);

for (int i = 0 ; i < count; i++) {

objc_property_t property = properties[i];

NSString *name = @(property_getName(property));

id value = [self valueForKey:name]?:@"nil";

[dict setObject:value forKey:name];

}

free(properties);

return [NSString stringWithFormat:@"<%@:%p>%@",[self class],self,dict];

}

参考文章:http://www.jianshu.com/p/c173d1460463