viewdidLoad で tableviewcell を問題なく生成する単純な rss リーダーを作成しました。私の問題は、ボタンをクリックするたびにテーブルビューが変わらないことです。内部のボタンタッチアップでリロードを試みましたが、まだ何も起こりません。Xcode と iOS プログラミングはかなり新しいので、どんな助けも素晴らしいです。
.m ファイル
#import "ViewController.h"
#import "KMXMLParser.h"
#import "WebViewController.h"
#import "SportsViewController.h"
@interface ViewController ()
@end
@implementation ViewController
{
NSArray *loadData;
NSURL *thumbnails;
}
@synthesize parseResults=_parseResults;
- (void)viewDidLoad
{
[super viewDidLoad];
KMXMLParser *parser = [[KMXMLParser alloc] initWithURL:@"http://www.daytonastate.edu/rss/it.xml" delegate:nil];
_parseResults = [parser posts];
[self refreshFeed];
// Do any additional setup after loading the view, typically from a nib.
}
-(void) refreshInvoked:(id)sender forState:(UIControlState)state
{
[self refreshFeed];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(void)refreshFeed
{
KMXMLParser *parser = [[KMXMLParser alloc] initWithURL:@"http://www.daytonastate.edu/rss/it.xml" delegate:nil];
_parseResults = [parser posts];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return self.parseResults.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"DataCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}// Configure the cell...
cell.textLabel.text = (self.parseResults)[indexPath.row][@"title"];
cell.detailTextLabel.text = (self.parseResults)[indexPath.row][@"summary"];
[self reloadData];
return cell;
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
WebViewController *vc = [[WebViewController alloc] init];
vc.url = [NSURL URLWithString:(self.parseResults)[indexPath.row][@"link"] ];
[self.navigationController pushViewController:vc animated:YES];
//Makes sure function clicks to reader feed.
// Navigation logic may go here. Create and push another view controller.
}
-(IBAction)pressBtn:(id)sender
{
UIButton *button= [UIButton buttonWithType:UIButtonTypeRoundedRect];
if (button.tag==1)
{
NSLog(@"Press button 1");
KMXMLParser *parser = [[KMXMLParser alloc] initWithURL:@"http://www.daytonastate.edu/rss/cea.xml" delegate:nil];
_parseResults = [parser posts];
[self reloadData];
}
if (button.tag==2)
{
NSLog(@"Press button 2");
[self EventsBtn:nil];
}
}
- (IBAction)NewsBtn:(id)sender
{
KMXMLParser *parser = [[KMXMLParser alloc] initWithURL:@"http://rss.cnn.com/rss/cnn_topstories.rss" delegate:nil];
_parseResults = [parser posts];
NSLog(@"reload happened");
// self.printMessage = [[PrintHello alloc] init]; // EDIT: THIS LINE WAS MISSING NOW IT WORKS
//[self.printMessage Print];
NSLog(@"NewsBtn Pressed");
}
- (IBAction)SportsBtn:(id)sender
{
KMXMLParser *parser = [[KMXMLParser alloc] initWithURL:@"http://www.daytonastate.edu/rss/it.xml" delegate:nil];
_parseResults = [parser posts];
}
- (IBAction)EventsBtn:(id)sender
{
KMXMLParser *parser = [[KMXMLParser alloc] initWithURL:@"http://www.daytonastate.edu/rss/events.xml" delegate:nil];
_parseResults = [parser posts];
NSLog(@"eventsBtn Pressed");
}
- (IBAction)WeatherBtn:(id)sender
{
KMXMLParser *parser = [[KMXMLParser alloc] initWithURL:@"http://w1.weather.gov/xml/current_obs/KDAB.rss" delegate:nil];
_parseResults = [parser posts];
}
@end