一: 三个常用的框架

  1. Mantle 

  - 所有模型必须继承MTModel

  2. JSONModel

  - 所有模型必须继承JSONModel

  3.MJExtension

  - 不需要继承任何东西。

  - 代码:

 

////  TableViewController.m//  json////  Created by Mac on 16/1/23.//  Copyright © 2016年 Mac. All rights reserved.//#import "TableViewController.h"#import 
     
      #import 
      
       #import "ZZVideo.h"#import 
       
        @interface TableViewController ()@property (nonatomic, strong) NSArray  *videos;@end@implementation TableViewController- (void)viewDidLoad {    [super viewDidLoad];    NSURL *url = [NSURL URLWithString:@"http://120.25.226.186:32812/video"];        NSURLRequest *request =  [NSURLRequest requestWithURL:url];        [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) {        NSDictionary *dic =  [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];                self.videos = [ZZVideo mj_objectArrayWithKeyValuesArray:dic[@"videos"]];        //        NSLog(@"%zd",_videos.count);        [self.tableView reloadData];    }];    }#pragma mark - Table view data source- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {//#warning Incomplete implementation, return the number of sections    return 1;}- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {//#warning Incomplete implementation, return the number of rows    return self.videos.count;}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{        static NSString *ID = @"video";                UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];                ZZVideo *video = self.videos[indexPath.row];                cell.detailTextLabel.text = [NSString stringWithFormat:@"视频时长: %ld",(long)video.length];                cell.textLabel.text= video.name;                NSString *image = [@"http://120.25.226.186:32812" stringByAppendingPathComponent:video.image];                [cell.imageView sd_setImageWithURL:[NSURL URLWithString:image] placeholderImage:nil];                        return cell;}#pragma mark - 代理- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{        ZZVideo *video = self.videos[indexPath.row];                NSString *videoStr = [@"http://120.25.226.186:32812" stringByAppendingPathComponent:video.url];                MPMoviePlayerViewController *vc = [[MPMoviePlayerViewController alloc] initWithContentURL:[NSURL URLWithString:videoStr]];               [self presentViewController:vc animated:YES completion:nil]; }@end
       
      
     

 

  

二: 设计第三方框架需要考虑的地方

 1.侵入性:

   - 侵入性大就意味着项目很难离开这个框架

 2.易用性

   - 比如少量代码就可以实现很多功能

 3.扩展性

  - 很容易给框架增加新的功能