LimitDemo

    在做一个比较大的工程的时候，最好是用MVC模型

因为每个页面都有导航，所以建一个BaseViewController页面继承UIViewController

1 #import <UIKit/UIKit.h>
2 #import "MyConnection.h"
3 #define WINSIZE [[UIScreen mainScreen] bounds].size
4 //宏定义   屏幕的大小
5 
6 @interface BaseViewController : UIViewController
7 
8 @end

每个页面也都包含TableView，所以建一个BaseTableViewController页面继承BaseViewController

1 #import "BaseViewController.h"
2 //协议写在.h中，为了子类继承的时候能够看到协议
3 @interface BaseTableViewController : BaseViewController <UITableViewDataSource,UITableViewDelegate>
4 
5 @property (strong,nonatomic)UITableView *tableView;
6 @property (strong,nonatomic)NSMutableArray *dataArray;
7 
8 
9 @end
 1 #import "BaseTableViewController.h"
 2 
 3 @interface BaseTableViewController () 
 4 
 5 @end
 6 
 7 @implementation BaseTableViewController
 8 
 9 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
10 {
11     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
12     if (self) {
13         // Custom initialization
14     }
15     return self;
16 }
17 
18 - (void)viewDidLoad
19 {
20     [super viewDidLoad];
21     self.dataArray = [[NSMutableArray alloc] init];
22     self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, WINSIZE.width, WINSIZE.height-64-49)];
23     self.tableView.delegate = self;
24     self.tableView.dataSource = self;
25     self.tableView.rowHeight = 100;//设置行高
26     [self.view addSubview:self.tableView];
27 }
28 
29 
30 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
31 {
32     return self.dataArray.count;
33 }
34 
35 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
36 {
37     return nil;
38 }
39 
40 
41 
42 
43 @end

在AppDelegate中添加导航，设置图标，设置导航的背景，字体属性

 1 //导航背景，设置之后的所有tabBar上的导航都会得到应用
 2     [[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"顶部条背景"]  forBarMetrics:UIBarMetricsDefault];
 3 //导航字体属性
 4     
 5     [[UINavigationBar appearance] setTitleTextAttributes:
 6   @{NSFontAttributeName:[UIFont systemFontOfSize:20],NSForegroundColorAttributeName:[UIColor whiteColor]
 7     }];
 8 
 9 
10 
11 
12  for(int i = 0;i<array.count;i++){
13         //遍历页面
14         //添加导航
15         UIViewController *vc = array[i];
16         //设置标题
17         vc.title = titleArray[i];
18         UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController:vc];
19         [array replaceObjectAtIndex:i withObject:nc];//数组变成导航
20         
21         //设置图标（正常情况下和点击的情况下）
22         vc.tabBarItem.image = [UIImage imageNamed:[NSString stringWithFormat:@"btn_%@_正常",titleArray[i]]];
23         vc.tabBarItem.selectedImage = [[UIImage imageNamed:[NSString stringWithFormat:@"btn_%@_点击",titleArray[i]]] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];//选中图标样式，修改渲染模式
24         
25     }
26     UITabBarController *tc = [[UITabBarController alloc] init];
27     //90 187 37
28     tc.tabBar.tintColor = [UIColor colorWithRed:90/255.0 green:187/255.0 blue:37/255.0 alpha:1];//改变字体颜色
29     tc.viewControllers = array;
30     self.window.rootViewController = tc;

下面是将系统的请求封装起来，方便调用

 1 #import <Foundation/Foundation.h>
 2 //block
 3 typedef void (^FinishBlock) (NSData *data);
 4 //typedef void(^) (NSData *data) FinishBlock;//与上面那句是同一个意思
 5 typedef void (^FailedBlock)();
 6 
 7 /*
 8  FinishBlock finishiBlock;
 9  void(^finishiBlock)(NSData *);
10  FinishBlock = ^(NSData *data)
11  {
12  }
13  */
14 
15 
16 
17 
18 @interface MyRequest : NSObject
19 //请求的地址
20 @property (copy,nonatomic)NSString *url;
21 //block必须用copy修饰
22 //完成的回调
23 @property (copy,nonatomic)FinishBlock finishBlock;
24 //失败的回调
25 @property (copy,nonatomic)FailedBlock failedBlock;
26 //开始请求
27 - (void)startRequest;
28 
29 
30 @end

 

 1 #import "MyRequest.h"
 2 
 3 @interface MyRequest()<NSURLConnectionDataDelegate>
 4 {
 5     NSMutableData *_mData;
 6 }
 7 
 8 @end
 9 
10 @implementation MyRequest
11 - (void)startRequest
12 {
13     _mData = [[NSMutableData alloc] init];
14     //系统请求
15     NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:self.url]];
16     [NSURLConnection connectionWithRequest:request delegate:self];
17 }
18 
19 //接收响应
20 - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
21 {  //菊花（网络旁）
22     [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
23 }
24 
25 //接收响应体
26 - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
27 {
28     [_mData appendData:data];
29 }
30 
31 
32 
33 //请求成功
34 - (void)connectionDidFinishLoading:(NSURLConnection *)connection
35 {
36     [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
37     if(self.finishBlock){
38         self.finishBlock(_mData);
39     }
40 }
41 
42 
43 //请求失败
44 - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
45 {
46     [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
47     if(self.failedBlock){
48         self.failedBlock();
49     }
50 }
51 
52 
53 @end
 1 #import <Foundation/Foundation.h>
 2 #import "MyRequest.h"
 3 @interface MyConnection : NSObject
 4 //类方法，外部可以通过类名调用
 5 + (void)connectionWithUrl:(NSString *)url FinishBlock:(FinishBlock) finishBlock FailedBlock:(FailedBlock)failedBlock;
 6 
 7 
 8 @end
 9 
10 
11 
12 
13 
14 
15 #import "MyConnection.h"
16 
17 @implementation MyConnection
18 
19 + (void)connectionWithUrl:(NSString *)url FinishBlock:(FinishBlock) finishBlock FailedBlock:(FailedBlock)failedBlock
20 {
21     MyRequest *request = [[MyRequest alloc] init];
22     request.url = url;
23     request.finishBlock = finishBlock;//外界传来的方法体
24     request.failedBlock = failedBlock;//外界传来的方法体
25     [request startRequest];
26 }
27 
28 @end

 

posted @ 2015-03-24 16:32  Angelone  阅读(170)  评论(0)  编辑  收藏  举报