我想我有一个很简单的任务，但不知何故它不想工作。我是objective-c的初学者，所以我想这只是一个小错误。我仍然不知道我在做什么，目前它更像是复制和粘贴编程。就像我真的不知道我是否需要界面中的 IBOutlet 或作为属性或两者兼而有之。
是）我有的：
一个带有按钮、标签和表格视图的 ViewController。该按钮连接到共享点服务器并读取列表并将值添加到数组中。这部分有效。
委托和数据源出口连接到视图控制器。
我想要的是：
数组应该是表格视图的数据源，所以我只想在读取数组中的新数据后刷新它。我在 viewDidLoad 函数中添加到数组的测试数据显示出来了。所以我想我以某种方式将数组连接到表视图。
我会给你完整的代码：
视图控制器.h：
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>
{
IBOutlet UILabel *output;
IBOutlet UITableView *tableView;
NSMutableData *webData;
NSString *finaldata;
NSString *convertToStringData;
NSMutableString *nodeContent;
}
@property (nonatomic, retain) UILabel *output;
@property (nonatomic, weak) IBOutlet UITableView *tableView;
-(IBAction)invokeService:(UIButton *) sender;
@end
视图控制器.m：
#import "ViewController.h"
@interface ViewController ()
{
NSMutableArray *foundUrlaub;
}
@end
@implementation ViewController
@synthesize output;
- (void)viewDidLoad
{
[super viewDidLoad];
// SOME TEST DATA... THIS SHOWS UP IN MY TABLE VIEW
foundUrlaub = [[NSMutableArray alloc]init];
[foundUrlaub addObject:@"first cell"];
[foundUrlaub addObject:@"second cell"];
[foundUrlaub addObject:@"third cell"];
}
-(IBAction)invokeService:(UIButton *) sender
{
// connection to sharepoint
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
NSLog(@"didReceiveResponse");
[webData setLength:0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
NSLog(@"didReceiveData");
[webData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
NSLog(@"ERROR with the Connection");
NSLog(error.description);
}
-(BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace
{
NSLog(@"canAuthenticateAgainstProtectionSpace");
return YES;
}
-(void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
{
NSLog(@"didReceiveAuthenticationChallenge");
NSURLCredential *credential = [NSURLCredential credentialWithUser:@"XXXXXX" password:@"XXXXXX" persistence:NSURLCredentialPersistenceForSession];
[[challenge sender] useCredential:credential forAuthenticationChallenge:challenge];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(@"DONE. Received Bytes: %d", [webData length]);
convertToStringData = [[NSString alloc] initWithData:webData encoding:NSUTF8StringEncoding];
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"(?<=ows_Title=')(.*)(?=' ows_MetaInfo)" options:0 error:NULL];
NSArray *matches = [regex matchesInString:convertToStringData options:0 range:NSMakeRange(0, [convertToStringData length])];
// HERE I LOAD SOME DATA IN THE ARRAY
[foundUrlaub removeAllObjects];
for (NSTextCheckingResult *match in matches)
{
NSRange matchRange = [match rangeAtIndex:1];
NSString *matchString = [convertToStringData substringWithRange:matchRange];
NSLog(@"Match: %@", matchString);
[foundUrlaub addObject:matchString]; // <- ADDS 3 STRINGS TO ARRAY
}
// THIS DOES NOT WORK!
[tableView reloadData];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [foundUrlaub count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = @"TableItem";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.textLabel.text = [foundUrlaub objectAtIndex:indexPath.row];
return cell;
}
@end