我已将推文加载到 NSMutableArray 中,我想在另一个类、文本视图或类似的东西中显示最新推文的内容。
推文.h:
#import <Foundation/Foundation.h>
@interface Tweet : NSObject
@property (strong, nonatomic)NSString *content;
@property (strong, nonatomic)NSString *dateCreated;
@end
推文.m:
#import "Tweet.h"
@implementation Tweet
@synthesize content = _content;
@synthesize dateCreated = _dateCreated;
@end
XMLParser.h:
#import "Foundation/Foundation.h"
#import "Tweet.h"
@interface XMLParser : NSObject <NSXMLParserDelegate>
@property (strong, readonly) NSMutableArray *tweets;
-(id) loadXMLByURL:(NSString *)urlString;
@end
XMLParser.m:
#import "Foundation/Foundation.h"
#import "XMLParser.h"
@implementation XMLParser
@synthesize tweets = _tweets;
NSMutableString *currentNodeContent;
NSXMLParser *parser;
Tweet *currentTweet;
bool isStatus;
bool isdone = true;
-(id) loadXMLByURL:(NSString *)urlString
{
_tweets = [[NSMutableArray alloc] init];
NSURL *url = [NSURL URLWithString:urlString];
NSData *data = [[NSData alloc] initWithContentsOfURL:url];
parser = [[NSXMLParser alloc] initWithData:data];
parser.delegate = self;
[parser parse];
return self;
}
- (void) parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
currentNodeContent = (NSMutableString *) [string stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
}
- (void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if ([elementName isEqualToString:@"status"])
{
currentTweet = [Tweet alloc];
isStatus = YES;
}
if ([elementName isEqualToString:@"user"])
{
isStatus = NO;
}
}
- (void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if (isStatus) {
if ([elementName isEqualToString:@"text"])
{
currentTweet.content = currentNodeContent;
}
if ([elementName isEqualToString:@"created_at"])
{
currentTweet.dateCreated = currentNodeContent;
}
}
if ([elementName isEqualToString:@"status"])
{
[self.tweets addObject:currentTweet];
currentTweet = nil;
currentNodeContent = nil;
}
}
@end
ProgramTeknik.h:
#import <UIKit/UIKit.h>
#import "XMLParser.h"
#import "Tweet.h"
@interface ProgramTeknik : UIViewController
@property (weak, nonatomic) IBOutlet UITextView *teknikNews;
@end
ProgramTeknik.m:
#import "ProgramTeknik.h"
#import "ViewController.h"
#import "XMLParser.h"
#import "Tweet.h"
@interface ProgramTeknik ()
@end
@implementation ProgramTeknik
XMLParser *xmlParser;
- (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.
xmlParser = [[XMLParser alloc] loadXMLByURL:@"http://api.twitter.com/1/statuses/user_timeline/baristashopen.xml"];
_teknikNews.text = @"test";
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
我想在 ProgramTeknik 课上展示推文,你们有什么想法吗?非常感谢!