每次我在按钮内重新加载数据时,应用程序都会崩溃。这是代码:
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
@interface ResultViewController : UIViewController <UITableViewDelegate,
UITableViewDataSource> {
NSMutableArray *listData;
NSMutableArray *listLocation;
NSMutableArray *listPostDate;
NSMutableArray *listLogo;
IBOutlet UINavigationBar *uiNavigationBar;
IBOutlet UITableView *uiTableView;
}
@property (nonatomic, retain) NSMutableArray *listData;
@property (nonatomic, retain) NSMutableArray *listLocation;
@property (nonatomic, retain) NSMutableArray *listPostDate;
@property (nonatomic, retain) NSMutableArray *listLogo;
@property (nonatomic, retain) UITableView *uiTableView;
-(IBAction)done;
-(IBAction)prev;
-(IBAction)next;
@end
#import "ResultViewController.h"
#import "JobAddSiteViewController.h"
#import "JobAddSiteAppDelegate.h"
#import "JSONKit.h"
@implementation ResultViewController
@synthesize listData;
@synthesize listLocation;
@synthesize listPostDate;
@synthesize listLogo;
NSInteger *countPage = 1;
NSArray *rows;
NSMutableArray *jsonResults;
NSMutableArray *tempArray;
NSMutableArray *tempArray2;
NSMutableArray *tempArray3;
NSMutableArray *tempArray4;
-(IBAction)done{
JobAddSiteViewController *second = [[JobAddSiteViewController alloc]initWithNibName:nil bundle:nil];
[self presentModalViewController:second animated:YES];
[second release];
}
- (void)viewDidLoad {
JobAddSiteAppDelegate *ja = (JobAddSiteAppDelegate *)[[UIApplication sharedApplication] delegate];
NSString *strURL2 = [NSString stringWithFormat:@"http://www.bestitjobs.co.uk/totaljobs.php", ""];
NSData *nsData2 = [NSData dataWithContentsOfURL:[NSURL URLWithString: strURL2]];
NSString *dataResult = [[NSString alloc] initWithData:nsData2 encoding:NSUTF8StringEncoding];
tempArray = [[NSMutableArray alloc] init];
tempArray2 = [[NSMutableArray alloc] init];
tempArray3 = [[NSMutableArray alloc] init];
tempArray4 = [[NSMutableArray alloc] init];
NSString *strURL = [NSString stringWithFormat:@"http://www.bestitjobs.co.uk/appresults3.php?pg=%d", countPage];
NSData *nsData = [NSData dataWithContentsOfURL:[NSURL URLWithString: strURL]];
NSDictionary* listDictionary = [nsData objectFromJSONData];
NSArray* people =[listDictionary objectForKey:@"jobs"];
for (NSDictionary *person in people) {
NSString *str = [NSString stringWithFormat:@"%@", [person valueForKey:@"position"]];
NSString *str2 = [NSString stringWithFormat:@"%@", [person valueForKey:@"subcounty"]];
NSString *str3 = [NSString stringWithFormat:@"%@", [person valueForKey:@"postdate"]];
NSString *str4 = [NSString stringWithFormat:@"%@", [person valueForKey:@"logo"]];
if(![str isEqualToString:@"<null>"])
{
NSString *position = [person objectForKey:@"position"];
[tempArray addObject: position];
}
if(![str2 isEqualToString:@"<null>"])
{
NSString *subcounty = [person objectForKey:@"subcounty"];
[tempArray2 addObject: subcounty];
}
if(![str3 isEqualToString:@"<null>"])
{
NSString *postDate = [person objectForKey:@"postdate"];
[tempArray3 addObject: postDate];
}
if(![str4 isEqualToString:@"<null>"])
{
NSString *logo = [person objectForKey:@"logo"];
[tempArray4 addObject: logo];
}
}
//NSArray *array = [[NSArray alloc] initWithObjects:@"iPhone", @"iPod",@"iPad",nil];
self.listData = tempArray;
self.listLocation = tempArray2;
self.listPostDate = tempArray3;
self.listLogo = tempArray4;
//[tempArray release];
[listData release];
[listLocation release];
[listPostDate release];
[listLogo release];
[super viewDidLoad];
}
- (void)dealloc {
//[tempArray dealloc];
[listData dealloc];
[listLocation dealloc];
[listPostDate dealloc];
[listLogo dealloc];
[super dealloc];
}
#pragma mark -
#pragma mark Table View Data Source Methods
- (IBAction)prev{
}
- (IBAction)next{
[listData addObject:@"Mac Mini"];
[listLocation addObject:@"Mac Mini"];
[listPostDate addObject:@"Mac Mini"];
[listLogo addObject:@"Mac Mini"];
UITableView *tv = (UITableView *)self.view;
[tv reloadData];
}
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section
{
return [self.listData count];
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath
*)indexPath
{
if (indexPath.section == 1 && indexPath.row == 1) {
return 65;
}
return 65;
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *SimpleTableIdentifier = @"SimpleTableIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:SimpleTableIdentifier];
UILabel *labelMain;
UILabel *labelLocation;
UILabel *labelDate;
UIImageView *image;
if (cell == nil) {
cell = [[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:SimpleTableIdentifier] autorelease];
image = [[[UIImageView alloc] initWithFrame:CGRectMake(0,3,80,62)] autorelease];
image.tag = 4;
[cell.contentView addSubview:image];
labelMain = [[[UILabel alloc] initWithFrame:CGRectMake(80,3,200,20)] autorelease];
labelMain.tag = 1;
labelMain.font = [UIFont systemFontOfSize:14.0];
[cell.contentView addSubview:labelMain];
labelLocation = [[[UILabel alloc] initWithFrame:CGRectMake(80,20,200,20)] autorelease];
labelLocation.tag = 2;
labelLocation.font = [UIFont systemFontOfSize:12.0];
labelLocation.textColor = [UIColor darkGrayColor];
[cell.contentView addSubview:labelLocation];
labelDate = [[[UILabel alloc] initWithFrame:CGRectMake(80,40,200,20)] autorelease];
labelDate.tag = 3;
labelDate.font = [UIFont systemFontOfSize:12.0];
labelDate.textColor = [UIColor darkGrayColor];
[cell.contentView addSubview:labelDate];
}
[(UILabel *)[cell.contentView viewWithTag:1] setText:[self.listData objectAtIndex:indexPath.row]];
[(UILabel *)[cell.contentView viewWithTag:2] setText:[self.listLocation objectAtIndex:indexPath.row]];
[(UILabel *)[cell.contentView viewWithTag:3] setText:[self.listPostDate objectAtIndex:indexPath.row]];
NSString *imagePath = [self.listLogo objectAtIndex:indexPath.row];
UIImage *uiImage = [UIImage imageWithContentsOfFile:[NSString stringWithFormat:@"http://www.bestitjobs.co.uk/employers/logo/Files/%@", imagePath]];
//NSLog([NSString stringWithFormat:@"http://www.bestitjobs.co.uk/employers/logo/Files/%@", imagePath]);
image.image = uiImage;
return cell;
}
@end
错误
2012-12-11 12:35:14.828 JobAddSite[674:207]-[UIView reloadData]:无法识别的选择器发送到实例 0x4e2d420 2012-12-11 12:35:14.931 JobAddSite[674:207] * 由于未捕获而终止应用程序异常'NSInvalidArgumentException',原因:'-[UIView reloadData]:无法识别的选择器发送到实例 0x4e2d420'*第一次抛出调用堆栈:(0 CoreFoundation 0x00deb5a9 exceptionPreprocess + 185 1 libobjc.A.dylib 0x00f3f313 objc_exception_throw + 44 2 CoreFoundation 0x00ded0bb -[ NSObject(NSObject) doesNotRecognizeSelector:] + 187 3 CoreFoundation 0x00d5c966 __转发+ 966 4 CoreFoundation 0x00d5c522 _CF_forwarding_prep_0 + 50 5 JobAddSite 0x000039c1 -[ResultViewController next] + 262 6 UIKit 0x002db4fd -[UIApplication sendAction:to:from:forEvent:] + 119 7 UIKit 0x004edcc3 -[UIBarButtonItem:withEventA] 156 8 UIKit 0x002db4fd -[UIApplication sendAction:to:from:forEvent:] + 119 9 UIKit 0x0036b799 -[UIControl sendAction:to:forEvent:] + 67 10 UIKit 0x0036dc2b -[UIControl(内部) _sendActionsForEvents:withEvent:] + 527 11 UIKit 0x0036c7d8 -[UIControl touchesEnded:withEvent:] + 458 12 UIKit 0x002ffded -[UIWindow _sendTouchesForEvent:] + 567 13 UIKit 0x002e0c37 -[UIApplication sendEvent:] + 447 14 UIKit 0x002e5f2e _UIApplicationHandleEvent + 7576 15 GraphicsServices 0x01743992 PurpleEventCallback + x00504461050CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION + 52 17 CoreFoundation 0x00d2ccf7 __CFRunLoopDoSource1 + 215 18 CoreFoundation 0x00d29f83 __CFRunLoopRun + 979 19 CoreFoundation 0x00d29840 CFRunLoopRunSpecific + 208 20 CoreFoundation 0x00d29761 CFRunLoopRunInMode + 97 21 GraphicsServices 0x017421c4 GSEventRunModal + 217 22 GraphicsServices 0x01742289 GSEventRun + 115 23 UIKit 0x002e9c93 UIApplicationMain + 1160 24 JobAddSite 0x00002af8 main + 102 25 JobAddSite 0x00002a89 start + 53 ) 在抛出“NSException”实例后调用终止