从网站获取用户数据写进tableView

ViewController.h

 1 #import <UIKit/UIKit.h>
 2 
 3 @interface ViewController : UIViewController
 4 <UITableViewDataSource>
 5 {
 6     UITableView* _tableView;
 7     NSMutableArray* dataArray;
 8 }
 9 
10 @end

ViewController.m

 1 #import "ViewController.h"
 2 #import "UserItem.h"
 3 #import "SBJson.h"
 4 
 5 @implementation ViewController
 6 #pragma mark - viewDidLoad Event
 7 -(void)loadData
 8 {
 9     dataArray = [[NSMutableArray alloc] init];//这个地方记着alloc
10     
11     //下载数据
12     NSString* urlStr = @"http://192.168.88.8/sns/my/user_list.php";
13     NSURL* url = [NSURL URLWithString:urlStr];
14     NSString* jsonStr = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:nil];
15     //解析数据
16     NSDictionary* jsonDic = [jsonStr JSONValue];
17     //取出users数组
18     NSArray* usersArray = [jsonDic objectForKey:@"users"];
19     for (NSDictionary* dic in usersArray) {
20         //取出每一个用户的信息
21         NSString* nickName = [dic objectForKey:@"username"];
22         NSString* imageUrl = [dic objectForKey:@"headimage"];
23         //封装起来
24         UserItem* item = [[UserItem alloc] init];
25         item.nickName = nickName;
26         item.imageUrl = imageUrl;
27         [dataArray addObject:item];
28         [item release];
29     }
30 
31 }
32 -(void)initTable
33 {
34     _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 320, 460) style:UITableViewStylePlain];
35     _tableView.dataSource = self;
36     [self.view addSubview:_tableView];
37     [_tableView release];
38 }
39 
40 #pragma mark - viewDidLoad
41 - (void)viewDidLoad
42 {
43     [super viewDidLoad];
44     //加载数据
45     [self loadData];
46     //创建表格
47     [self initTable];
48 }
49 
50 
51 #pragma mark - UITableViewDataSource
52 
53 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
54     return dataArray.count;
55 }
56 - (UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
57     UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:@"ID"];
58     if (cell == nil) {
59         cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:@"ID"] autorelease];
60             
61         //cell上添加控件
62         UIImageView* imageView = [[UIImageView alloc] initWithFrame:CGRectMake(5, 5, 30, 30)];
63         imageView.tag = 101;
64         [cell.contentView addSubview:imageView];
65         [imageView release];
66         
67         UILabel* label = [[UILabel alloc] initWithFrame:CGRectMake(40, 5, 200, 40)];
68         label.tag = 102;
69         label.backgroundColor = [UIColor clearColor];
70         [cell.contentView addSubview:label];
71         [label release];
72 
73     }
74     UIImageView* imageView = (UIImageView*)[cell.contentView viewWithTag:101];
75     UILabel* label = (UILabel*)[cell.contentView viewWithTag:102];
76     
77     //取得数据
78     UserItem* item = [dataArray objectAtIndex:indexPath.row];
79     
80     //赋值
81     NSString* imageUrl = [NSString stringWithFormat:@"http://192.168.88.8/sns%@",item.imageUrl];
82     imageView.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:imageUrl]]];
83     label.text = item.nickName;
84     
85     return cell;
86 }
87 
88 @end

 

 

UserItem.h

 

1 #import <Foundation/Foundation.h>
2 
3 @interface UserItem : NSObject
4 
5 @property (nonatomic,retain)NSString* nickName;
6 @property (nonatomic,retain)NSString* imageUrl;
7 
8 @end

 

Useritem.m

 1 #import "UserItem.h"
 2 
 3 @implementation UserItem
 4 @synthesize nickName = _nickName;
 5 @synthesize imageUrl = _imageUrl;
 6 
 7 - (void)dealloc{
 8     self.nickName = nil;
 9     self.imageUrl = nil;
10     
11     [super dealloc];
12 }
13 
14 @end

 

 

 

posted on 2013-01-29 15:09  灰色的人  阅读(1063)  评论(0)  编辑  收藏  举报

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