基于runtime 的iOS反射
主要通过runtime 获取类的属性，并通过jeson对对应的类进行赋值。
#import <Foundation/Foundation.h>
@interface BaseModel : NSObject
@property (nonatomic, strong) NSMutableArray *undefineValueArray;
/**
* 给类中的属性一一赋字典的值
*
* @param dataSource <#dataSource description#>
*
* @return <#return value description#>
*/
-(BOOL)CreatClasswithNSObject:(NSObject*)dataSource;
/**
* 设置 属性中有但是字典中没有的字段名字
*
* @param key <#key description#>
*
* @return <#return value description#>
*/
-(NSString*)changgeWith:(NSString*)key;
/**
* 通过jeseon字符串将字典转换为数组
*
* @param jseonData <#jseonData description#>
*
* @return <#return value description#>
*/
+(NSMutableArray*)ArrayWithJesonData:(id)jseonData;
/**
* <#Description#>
*
* @return <#return value description#>
*/
-(NSDictionary*)valueForUnDefine;
/**
*
*
* @return <#return value description#>
*/
-(NSMutableArray*)getUnDefineKey;
@end
#import <objc/runtime.h>
#import "BaseModel.h"
@implementation BaseModel
-(NSMutableArray*)getUnDefineKey{
return self.undefineValueArray;
}
/**
* 获取所有的类名放到数组当中
*
* @return
*/
- (NSArray*)propertyKeys
{ ///存储属性的个数
unsigned int outCount, i;
///通过运行时获取当前类的属性
objc_property_t *properties = class_copyPropertyList([self class], &outCount);
///存储所有的属性名称
NSMutableArray *keys = [[NSMutableArray alloc] initWithCapacity:outCount];
for (i = 0; i < outCount; i++) {
///取出第一个属性
objc_property_t property = properties[i];
NSString *propertyName = [[NSString alloc] initWithCString:property_getName(property) encoding:NSUTF8StringEncoding];
[keys addObject:propertyName];
}
free(properties);
return keys;
}
/**
* 通过iOS反射 将字典中的Key Value 存放到类中返回
*
* @param dataSource <#dataSource description#>
*
* @return <#return value description#>
*/
-(BOOL)CreatClasswithNSObject:(NSObject*)dataSource
{
BOOL ret = NO;
for (NSString *key in [self propertyKeys]) {
if ([dataSource isKindOfClass:[NSDictionary class]])
{
ret = ([dataSource valueForKey:key]==nil)?NO:YES;
}
else
{
ret = [dataSource respondsToSelector:NSSelectorFromString(key)];
}
if (ret)
{
id propertyValue = [dataSource valueForKey:key];
//该值不为NSNULL，并且也不为nil
if (![propertyValue isKindOfClass:[NSNull class]] && propertyValue!=nil) {
[self setValue:propertyValue forKey:key];
}
}
else
{
if ([self valueForUnDefine]&&[self valueForUnDefine][key])
{
[self setValue:[dataSource valueForKey:[self valueForUnDefine][key]] forKey:key];
}
else{
if (self.undefineValueArray.count ) {
[self.undefineValueArray addObject:key];
}
else{
self.undefineValueArray = [NSMutableArray array];
[self.undefineValueArray addObject:key];
}
}
// if ([self changgeWith:key]) {
// [self setValue:[dataSource valueForKey:[self changgeWith:key]] forKey:key];
// }
// else{
// NSLog(@"-------%@没有找到的属性",key);
// }
}
}
return ret;
}
/**
* 将jeson 存放到可变数组中
*
* @param jseonData 网络请求下来的
*
* @return
*/
+(NSMutableArray*)ArrayWithJesonData:(id)jseonData
{
if ([jseonData isKindOfClass:[NSArray class]]) {
NSMutableArray * array = [NSMutableArray array];
for (NSDictionary * dic in jseonData) {
id test = [[[self class] alloc] init];
[test CreatClasswithNSObject:dic];
[array addObject:test];
}
return array;
}
else if ([jseonData isKindOfClass:[NSDictionary class]])
{
NSMutableArray * array = [NSMutableArray array];
id test = [[[self class] alloc] init];
[test CreatClasswithNSObject:jseonData];
[array addObject:test];
return array;
}
else{
return nil;
}
}
/**
* 设置字典的返回参数
*
* @param key 是类本身属性 Value是字典中model
*
* @return
*/
-(NSString*)changgeWith:(NSString*)key{
NSDictionary * dic =@{@"类本身属性名称":@"jeson字典中名称"};
return([dic valueForKey:key]==nil)?nil:dic[key];
}
-(NSDictionary*)valueForUnDefine{
NSDictionary * dic =@{@"类本身属性名称":@"jeson字典中名称"};
return dic;
}
- (void)runTests
{
unsigned int count;
Method *methods = class_copyMethodList([self class], &count);
for (int i = 0; i < count; i++)
{
Method method = methods[i];
SEL selector = method_getName(method);
NSString *name = NSStringFromSelector(selector);
// if ([name hasPrefix:@"test"])
NSLog(@"方法 名字 ==== %@",name);
if (name)
{
//avoid arc warning by using c runtime
// objc_msgSend(self, selector);
}
NSLog(@"Test '%@' completed successfuly", [name substringFromIndex:4]);
}
}
@end
