用plist建立UITabController

建立UITabController时，将几个uiviewcontroller初始化后放入数组，然后通过UITabController进行串联。但是在初始化uiviewcongroller和配置控件的时候会出现很多重复的代码，对后期的维护会带来很多不便。因此通过建立一个plist文件，通过model来优化代码。

1.建立一个plist文件，在文件中添加相关控件的名称。

2.在model中将plist文件中的控件名取出来并赋值。

3.在UITabController中初始化model，引入各uiviewcontroller。

第一步：

第二步：

1 #import "BaseInfo.h"
2 #import <UIKit/UIKit.h>
3 @interface PageInfo : BaseInfo
4 @property (nonatomic,strong)NSString *image;
5 @property (nonatomic,strong)NSString *SelectedImage;
6
7 +(NSArray *)pageControllers;
8
9 @end

 1 #import "PageInfo.h"
 2
 3 @implementation PageInfo
 4 //通过类方法，将传来的NSDictionary中相应的元素解析出来，返回解析出来的model
 5 +(PageInfo *)infoFromDict:(NSDictionary *)dict
 6 {
 7     PageInfo *info = [[PageInfo alloc]init];
 8     info.ID = [dict valueForKey:@"Class Name"];
 9     info.name = [dict valueForKey:@"Title"];
10     info.image = [dict valueForKey:@"Image"];
11     info.SelectedImage = [dict valueForKey:@"SelectedImage"];
12     return info;
13 }
14 +(NSArray *)pages
15 {
16     //找到建立的plist文件路径
17     NSString *confile = [[NSBundle mainBundle]pathForResource:@"HomeList" ofType:@"plist"];
18     //将plist文件中定义的NSArray拿到
19     NSArray *pageConfign = [NSArray arrayWithContentsOfFile:confile];
20     NSMutableArray *pages = [[NSMutableArray alloc]init];
21
22     if (pageConfign.count <= 0) {
23         NSLog(@"NO LIST");
24     }
25     //遍历plist文件中的Array，并将数组中的字典解析并配置为model，然后将配置好的model添加到可变数组中，返回可变数组
26     for (NSDictionary *dict in pageConfign) {
27         [pages addObject:[PageInfo infoFromDict:dict]];
28     }
29     return pages;
30 }
31 +(NSArray *)pageControllers
32 {
33     //取到pages方法中返回的数组
34     NSMutableArray *controllers = [NSMutableArray array];
35     NSArray *page = [PageInfo pages];
36     UIViewController *pageController = nil;
37     UINavigationController *napage = nil;
38     //将取到的数组将model中定义的各类，赋值给相应的控件，返回
39     for (PageInfo *pageInfo in page) {
40         pageController = [[NSClassFromString(pageInfo.ID) alloc]init];
41         napage = [[UINavigationController alloc]initWithRootViewController:pageController];
42         pageController.title = pageInfo.name;
43         pageController.tabBarItem.image = [UIImage imageNamed:pageInfo.image];
44         pageController.tabBarItem.selectedImage = [UIImage imageNamed:pageInfo.SelectedImage];
45         [controllers addObject:napage];
46     }
47     return controllers;
48 }
49 @end

第三步

 1 @implementation HomePage
 2
 3 -(instancetype)init{
 4     self = [super init];
 5     if (self) {
 6         [self addTabController];
 7     }
 8     return self;
 9 }
10 -(void)viewDidLoad{
11     [super viewDidLoad];
12
13 }
14 -(void)addTabController
15 {
16
17     self.tabBar.tintColor = [UIColor redColor];
18     self.viewControllers = [PageInfo pageControllers];
19 }
20 - (void)didReceiveMemoryWarning {
21     [super didReceiveMemoryWarning];
22 }
23
24 @end