[iOS base Control-6.4] auto brand showcase model nested/kvc/tableview index

A. Requirements 1. Use the car brand name of the first letter for a model, the car brand for a model, the first letter model nested brand MODEL2. Use KVC for the model package Assignment 3. Display Head Letter Title 4. Display index (use KVC instead of traversal to fetch all index values) B. Implementing 1.Model nesting is actually a member of another model. plist file Structure Groupcar has an array of car storage

1 @property (nonatomic, strong) Nsarray *cars;

The package model needs to be handled accordingly cargroup.m

1         //You cannot use KVC to encapsulate the car model and place it in an array, and you cannot store the array directly .2Nsarray *carsarray = dictionary[@"Cars"];3Nsmutablearray *mcarsarray =[Nsmutablearray array];4          for(Nsdictionary *dictinchCarsarray) {5Car *car =[Car carwithdictionary:dict];6 [Mcarsarray Addobject:car];7         }8       9Self.cars = Mcarsarray;

2.KVC member names are used in accordance with the key names taken from the dictionary, so that all member properties can be assigned with a single method, the amount of code seen

1 CAR.M2-(Instancetype) Initwithdictionary: (Nsdictionary *) Dictionary {3     if(self =[Super Init]) {4         //when the key name in the dictionary is consistent with the member name in model, you can use KVC5 [self setvaluesforkeyswithdictionary:dictionary];6        7 //Self.icon = dictionary[@ "icon"];8 //self.name = dictionary[@ "name"];9     }Ten     One     returnSelf ; A } -  

3. Display Title Settitle

1 /*  */2 -(NSString *) TableView: (UITableView *) TableView titleforheaderinsection: (Nsinteger) Section

4. Index

1 /*  */2 -(Nsarray *) Sectionindextitlesfortableview: (UITableView *) TableView {3      //  use KVC to remove the array without using traverse wrapping 4     return [self.cargroups valueforkey: @" title " ]; 5 }

C. Main code

1 //2 //Car.h3 //Cargroup4 //5 //Created by Hellovoidworld on 14/12/2.6 //Copyright (c) 2014 Hellovoidworld. All rights reserved.7 //8 9 #import<Foundation/Foundation.h>Ten  One @interfaceCar:nsobject A  -@property (nonatomic, copy) NSString *icon; -@property (nonatomic, copy) NSString *name; the  --(Instancetype) Initwithdictionary: (Nsdictionary *) dictionary; -+ (Instancetype) carwithdictionary: (Nsdictionary *) dictionary; -+(instancetype) car; +  - @end

1 //2 //CAR.M3 //Cargroup4 //5 //Created by Hellovoidworld on 14/12/2.6 //Copyright (c) 2014 Hellovoidworld. All rights reserved.7 //8 9 #import "Car.h"Ten  One @implementationCar A  --(Instancetype) Initwithdictionary: (Nsdictionary *) Dictionary { -     if(self =[Super Init]) { the         //when the key name in the dictionary is consistent with the member name in model, you can use KVC - [self setvaluesforkeyswithdictionary:dictionary]; -         - //Self.icon = dictionary[@ "icon"]; + //self.name = dictionary[@ "name"]; -     } +     A     returnSelf ; at } -  -+ (Instancetype) carwithdictionary: (Nsdictionary *) Dictionary { -     return[[Self alloc] initwithdictionary:dictionary]; - } -  in+(instancetype) car { -     return[self carwithdictionary:nil]; to } +  - @end

1 //2 //CarGroup.h3 //Cargroup4 //5 //Created by Hellovoidworld on 14/12/2.6 //Copyright (c) 2014 Hellovoidworld. All rights reserved.7 //8 9 #import<Foundation/Foundation.h>Ten  One @interfaceCargroup:nsobject A  -@property (nonatomic, strong) Nsarray *cars; -@property (nonatomic, copy) NSString *title; the  --(Instancetype) Initwithdictionary: (Nsdictionary *) dictionary; -+ (Instancetype) cargroupwithdictionary: (Nsdictionary *) dictionary; -+(instancetype) cargroup; +  - @end

1 //2 //cargroup.m3 //Cargroup4 //5 //Created by Hellovoidworld on 14/12/2.6 //Copyright (c) 2014 Hellovoidworld. All rights reserved.7 //8 9 #import "CarGroup.h"Ten #import "Car.h" One  A @implementationCargroup -  --(Instancetype) Initwithdictionary: (Nsdictionary *) Dictionary { the     if(self =[Super Init]) { -Self.title = dictionary[@"title"]; -         -         //You cannot use KVC to encapsulate the car model and place it in an array, and you cannot store the array directly . +Nsarray *carsarray = dictionary[@"Cars"]; -Nsmutablearray *mcarsarray =[Nsmutablearray array]; +          for(Nsdictionary *dictinchCarsarray) { ACar *car =[Car carwithdictionary:dict]; at [Mcarsarray Addobject:car]; -         } -         -Self.cars =Mcarsarray; -     } -     in     returnSelf ; - } to  ++ (Instancetype) cargroupwithdictionary: (Nsdictionary *) Dictionary { -     return[[Self alloc] initwithdictionary:dictionary]; the } *  $+(instancetype) cargroup {Panax Notoginseng     return[self cargroupwithdictionary:nil]; - } the  + @end

1 //2 //VIEWCONTROLLER.M3 //Cargroup4 //5 //Created by Hellovoidworld on 14/12/1.6 //Copyright (c) 2014 Hellovoidworld. All rights reserved.7 //8 9 #import "ViewController.h"Ten #import "CarGroup.h" One #import "Car.h" A  - @interfaceViewcontroller () <UITableViewDataSource> -@property (Weak, nonatomic) iboutlet UITableView *TableView; the  - //all the car brands -@property (nonatomic, strong) Nsarray *cargroups; -  + @end

[iOS base Control-6.4] auto brand showcase model nested/kvc/tableview index