我有两个视图控制器,GroupListViewController 和 GroupDetailViewController,来回切换,当通过单击行单元格切换时,运行出错,我什至没有 xib。我以编程方式完成所有组件。在这里搜索相同的问题,这不是我的类型。
在下面的代码片段中,“CustomGroupListViewCell *plcc”CustomGroupListViewCell 是一个自定义 UITableViewCell,您可以实现一个空转储,
在此处列出代码。
GroupListViewController.h
#import <UIKit/UIKit.h>
@class GroupDetailViewController;
@interface GroupListViewController : UITableViewController
{
NSArray * contentArray;
GroupDetailViewController * dvController;
}
@property (nonatomic, retain) GroupDetailViewController * dvController;
@end
GroupListViewController.m
#import "GroupListViewController.h"
#import "CustomGroupListViewCell.h"
#import "ZYAppDelegate.h"
#import "GroupDetailViewController.h"
@interface GroupListViewController ()
@end
@implementation GroupListViewController
@synthesize dvController;
- (void) viewDidLoad
{
contentArray = [[NSArray arrayWithObjects:@"heyun", @"wushi", @"ios", nil]retain];
[super viewDidLoad];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void) dealloc
{
[dvController release];
[super dealloc];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear: animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear: animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear: animated];
}
- (void)viewDisDisappear:(BOOL)animated
{
[super viewDidDisappear: animated];
}
- (NSInteger)numberOfSectionsInTableView: (UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [contentArray count];
}
// custom row height
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
// dynamic with whether the cell has the gourp image or not..
return 160;
}
// Customize the appearance of table view cells
- (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"PartyListCustomCell";
CustomGroupListViewCell *plcc = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(plcc == nil)
{
plcc = [[[CustomGroupListViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// set up custom cell
plcc.gourpTitle.text = @"gourpTitle";
return plcc;
}
- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (dvController == nil)
{
GroupDetailViewController *aController = [[GroupDetailViewController alloc] initWithNibName:@"GroupDetailViewController" bundle:nil];
self.dvController = aController;
[aController release];
}
[dvController updateRowNumber:indexPath.row];
[[self navigationController] pushViewController:dvController animated:YES];
}
@end
GroupDetailViewController.h
#import <UIKit/UIKit.h>
@interface GroupDetailViewController : UITableViewController
{
int rowNumber;
}
@property(readwrite) int rowNumber;
- (void) updateRowNumber:(int) theindex;
@end
GroupDetailViewController.m
#import "GroupDetailViewController.h"
@interface GroupDetailViewController ()
@end
@implementation GroupDetailViewController
@synthesize rowNumber;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self)
{
// Custom initialization
}
return self;
}
- (void) updateRowNumber: (int) theindex
{
rowNumber = theindex + 1;
UILabel *label1 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 20.0, 200.0, 50.0)];
label1.text = [NSString stringWithFormat:@"row %i was clicked ", rowNumber];
[self.view addSubview: label1];
[label1 release];
}
- (void)dealloc
{
[super dealloc];
}
- (void)viewDidLoad
{
UILabel *label1 = [[UILabel alloc]initWithFrame:CGRectMake(50.0, 20.0, 200.0, 50.0)];
label1.text = [NSString stringWithFormat:@"row %i was clicked ", rowNumber];
[self.view addSubview: label1];
[super viewDidLoad];
[label1 release];
// Do any additional setup after loading the view from its nib.
}
- (void)fetchedData: (NSData *)responseData
{
// parse out the json data
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Do any additional setup after loading the view from its nib.
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear: animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear: animated];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end