1. 在控制器属性的（questions）set方法中完成字典转模型的操作
- (NSArray *)questions
{
if (nil == _questions) {
//1.加载plist文件
NSArray *dictArray = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"questions" ofType:@"plist"]];
//2.字典转模型
NSMutableArray *questionArray = [NSMutableArray array];
for (NSDictionary *dict in dictArray) {
CLQuestion *question = [CLQuestion questionWithDict:dict];
[questionArray addObject:question];
}
//3.赋值
_questions = questionArray;
}
}
2.新建模型类CLQuestion
//2.1依据字典内容建立对应的成员变量
/** 答案*/
@property (nonatomic, copy) NSString *answer;
/** 图像名称*/
@property (nonatomic, copy) NSString *icon;
/** 题目*/
@property (nonatomic, copy) NSString *title;
/** 待选项*/
@property (nonatomic, strong) NSArray *options;
//2.2新建2个初始化方法，仿照系统写法 一个对象方法 一个类方法
- (instancetype)initWithDict:(NSDictionary *)dict;
+ (instancetype)questionWithDict:(NSDictionary *)dict;
//2.3在初始化方法中完成 依据字典内容对成员变量赋值 这里用KVC更简单
- (instancetype)initWithDict:(NSDictionary *)dict
{
if (self = [super init]) {
self.icon = dict[@"icon"];
self.title = dict[@"title"];
self.answer = dict[@"answer"];
self.options = dict[@"options"];
}
return self;
}
+ (instancetype)questionWithDict:(NSDictionary *)dict
{
return [[self alloc]initWithDict:dict];
}
3.在控制器中使用的方法
CLQuestion *question = self.questions[self.index];