首先，single view
在storyboard里，拉出来一个navigationbar 然后把后面的tableview换成原来的那个viewcontroller
把viewcontroller里去掉原先继承的类
再拉一个tabbar进来
拉一个button在viewcontroller上面
然后连接button和tabbar
恩，就是这个样子
接着把tabbar后面全都换成tableviewcontroller（拉出来4个tableviewcontroller）
把所有的cell改成subtitle后连接一个viewcontroller
改一下segue
拉个webview在最后那个viewcontroller上
然后就可以写代码拉。。
首先写最后那个viewcontroller的类
把webview连接出来
新建两个属性，一个是获得weburl，一个是获得webtitle
// // webNewsViewController.h // fixedOne // // Created by ioscourse on 13-4-16. // Copyright (c) 2013年 cct. All rights reserved. // #import <UIKit/UIKit.h> @interface webNewsViewController : UIViewController @property (weak,nonatomic) IBOutlet UIWebView *webView; @property (strong,nonatomic) NSString *webUrl; @property (strong,nonatomic) NSString *webTitle; @end
然后看 .m
#import "webNewsViewController.h"
@interface webNewsViewController ()
@end
@implementation webNewsViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
// scale
self.webView.scalesPageToFit = YES;
// title
self.navigationItem.title = self.title;
// load html
[self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:self.webUrl]]];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
然后在.pch里加上后面要用的xml
#define focusNewsUrlOfXml @"http://RSS.sina.com.cn/news/marquee/ddt.xml" #define internationalNewsUrlOfXml @"http://RSS.sina.com.cn/news/world/focus15.xml" #define domesticNewsUrlOfXml @"http://RSS.sina.com.cn/news/china/focus15.xml" #define socialNewsUrlOfXml @"http://RSS.sina.com.cn/news/society/focus15.xml"
这个是对于tableview的抽象类的.h
@property (strong,nonatomic) NSString *cellName; @property (strong,nonatomic) NSString *urlOfXml; @property (strong,nonatomic) NSMutableArray *pubdate; @property (strong,nonatomic) NSMutableArray *link; @property (strong,nonatomic) NSMutableArray *tit; @property (strong,nonatomic) NSMutableString *stringTemp; - (void)initWithTableViewName;
噢，那个，记得加载NSXMLParserDelegate和webviewcontroller的那个.h啊
然后viewdidload函数：
使用异步来做这个
[self initWithTableViewName];
dispatch_queue_t que = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH,0);
dispatch_async(que,^{
NSURL *url = [NSURL URLWithString:self.urlOfXml];
NSXMLParser *parser = [[NSXMLParser alloc]initWithContentsOfURL:url];
[parser setDelegate:self];
[parser parse];
// 清空备用string
self.stringTemp = nil;
dispatch_async(dispatch_get_main_queue(),^{
[self.tableView reloadData];
});
});
异步使用的具体情况，等过段时间我再写一篇
这个就是最开始segue改名的时候把原来的默认的叫item的那个标题改成新闻要闻之类的东西
- (void)initWithTableViewName
{
if ([self.title isEqualToString:@"新闻要闻"]) {
self.urlOfXml = focusNewsUrlOfXml;
self.cellName = @"focusNewsCell";
}
else if ([self.title isEqualToString:@"国际新闻"]) {
self.urlOfXml = internationalNewsUrlOfXml;
self.cellName = @"internationalNewsCell";
}
else if ([self.title isEqualToString:@"国内新闻"]) {
self.urlOfXml = domesticNewsUrlOfXml;
self.cellName = @"domesticNewsCell";
}
else if ([self.title isEqualToString:@"社会新闻"]) {
self.urlOfXml = socialNewsUrlOfXml;
self.cellName = @"socialNewsCell";
}
}
然后解析xml
- (void) parser:(NSXMLParser *)parser
didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName
attributes:(NSDictionary *)attributeDict
{
if ([elementName isEqualToString:@"title"]) {
if (self.tit == nil) {
self.tit = [[NSMutableArray alloc] init];
}
}
if ([elementName isEqualToString:@"link"]) {
if (self.link == nil) {
self.link = [[NSMutableArray alloc] init];
}
}
else if ([elementName isEqualToString:@"pubDate"]){
if (self.pubdate == nil) {
self.pubdate = [[NSMutableArray alloc] init];
}
}
}
- (void) parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if (self.stringTemp == nil)
self.stringTemp = [[NSMutableString alloc] init];
[self.stringTemp appendString:string];
}
- (void) parser:(NSXMLParser *)parser
didEndElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName
{
if ([elementName isEqualToString:@"title"]) {
[self.tit addObject:self.stringTemp];
}
else if ([elementName isEqualToString:@"link"]) {
[self.link addObject:self.stringTemp];
}
else if ([elementName isEqualToString:@"pubDate"]) {
[self.pubdate addObject:self.stringTemp];
}
self.stringTemp = nil;
}
获得标签为title的两个之间的内容存在stringtmp里面
然后当找到第二个title的时候把这个字符串赋值给对应的属性
然后设定行数为日起
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.pubdate count] - 2;
}
设定为出版日期数组的个数减去2
为什么减去2
可以看一下xml源码
可以发现第一个和最后一个是不大对的，所以要去掉
cell.textLabel.text = self.tit[indexPath.row+2];
cell.detailTextLabel.text = self.pubdate[indexPath.row+1];
准备
NSMutableString *str = [[NSMutableString alloc] init];
[str appendString:[self.link objectAtIndex:self.tableView.indexPathForSelectedRow.row+2]];
[str deleteCharactersInRange:NSMakeRange(0,4)];
[segue.destinationViewController setWebUrl:str];
[segue.destinationViewController setWebTitle: segue.identifier];
然后link前有空格要删掉一些才可以用
恩，就这样啦，给个demo
