当我在两个标签之间切换4到5次时，我有一个iphone应用程序崩溃。其中一个视图有一个UITableView，可以在您键入时进行搜索，我感觉这是出错的地方。在Interface Builder中，如果我将引用插座的表视图连接到包含搜索结果的数组，则在您键入的搜索工作完美但我在视图之间切换问题。 如果我不进行此连接，则搜索无效。它只在我搜索后向上和向下滚动时刷新表格视图。
有谁知道会出现什么问题？多年来我一直在努力解决这个问题，而且我对iphone编程很陌生。谢谢
编辑： 我在控制台中收到此错误：
2011-07-30 10:52:09.835 ConnectIPhone[7019:207] -[NSCFString setReorderedIndexPath:]: unrecognized selector sent to instance 0x4e48370
2011-07-30 10:52:09.838 ConnectIPhone[7019:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSCFString setReorderedIndexPath:]: unrecognized selector sent to instance 0x4e48370'
*** Call stack at first throw:
(
0 CoreFoundation 0x00dd6be9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x00f2b5c2 objc_exception_throw + 47
2 CoreFoundation 0x00dd86fb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x00d48366 ___forwarding___ + 966
4 CoreFoundation 0x00d47f22 _CF_forwarding_prep_0 + 50
5 UIKit 0x00359171 -[UITableView reloadData] + 446
6 ConnectIPhone 0x0000649e -[PeopleViewController viewWillAppear:] + 460
7 UIKit 0x003a02bf -[UITabBarController transitionFromViewController:toViewController:transition:shouldSetSelected:] + 263
8 UIKit 0x0039ed86 -[UITabBarController transitionFromViewController:toViewController:] + 64
9 UIKit 0x003a0b7e -[UITabBarController _setSelectedViewController:] + 263
10 UIKit 0x003a09ed -[UITabBarController _tabBarItemClicked:] + 352
11 UIKit 0x002dfa6e -[UIApplication sendAction:to:from:forEvent:] + 119
12 UIKit 0x004dd1f2 -[UITabBar _sendAction:withEvent:] + 422
13 UIKit 0x002dfa6e -[UIApplication sendAction:to:from:forEvent:] + 119
14 UIKit 0x0036e1b5 -[UIControl sendAction:to:forEvent:] + 67
15 UIKit 0x00370647 -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 527
16 UIKit 0x0036e16c -[UIControl sendActionsForControlEvents:] + 49
17 UIKit 0x002dfa6e -[UIApplication sendAction:to:from:forEvent:] + 119
18 UIKit 0x0036e1b5 -[UIControl sendAction:to:forEvent:] + 67
19 UIKit 0x00370647 -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 527
20 UIKit 0x0036f1f4 -[UIControl touchesEnded:withEvent:] + 458
21 UIKit 0x003040d1 -[UIWindow _sendTouchesForEvent:] + 567
22 UIKit 0x002e537a -[UIApplication sendEvent:] + 447
23 UIKit 0x002ea732 _UIApplicationHandleEvent + 7576
24 GraphicsServices 0x0170ca36 PurpleEventCallback + 1550
25 CoreFoundation 0x00db8064 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
26 CoreFoundation 0x00d186f7 __CFRunLoopDoSource1 + 215
27 CoreFoundation 0x00d15983 __CFRunLoopRun + 979
28 CoreFoundation 0x00d15240 CFRunLoopRunSpecific + 208
29 CoreFoundation 0x00d15161 CFRunLoopRunInMode + 97
30 GraphicsServices 0x0170b268 GSEventRunModal + 217
31 GraphicsServices 0x0170b32d GSEventRun + 115
32 UIKit 0x002ee42e UIApplicationMain + 1160
33 ConnectIPhone 0x00001ca0 main + 102
34 ConnectIPhone 0x00001c31 start + 53
35 ??? 0x00000001 0x0 + 1
)
terminate called after throwing an instance of 'NSException'
cellForRowAtIndexPath代码：
-(UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath: (NSIndexPath*)indexPath
{
static NSString *cellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil){
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier] autorelease];
}
row = [indexPath row];
if (row >= [listData count]){
cell.textLabel.text = @"";
}else {
NSMutableString *cellText = [[NSMutableString alloc] initWithString:[[listData objectAtIndex:row] objectAtIndex:0]];
[cellText appendString:@", "];
[cellText appendString:[[listData objectAtIndex:row] objectAtIndex:1]];
cell.textLabel.textColor = [UIColor whiteColor];
cell.textLabel.text = cellText;
[cellText release];
}
return cell;
}
班级：
#import "PeopleViewController.h"
@implementation PeopleViewController
// The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
/*
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization.
}
return self;
}
*/
-(void)loadView
{
[super loadView];
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
self.editing = YES;
cHandle = [ConnectHandler new];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
userID = [defaults objectForKey:kUserID];
password = [defaults objectForKey:kPassword];
NSString *response = [cHandle doSearch:@"" :userID :[cHandle hashPass:password]];
listData = (NSMutableArray*)[cHandle parseSearch:response];
self.view.autoresizesSubviews = YES;
self.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
[listTable reloadData];
[super viewDidLoad];
}
-(void)viewWillAppear:(BOOL)animated
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
userID = [defaults objectForKey:kUserID];
password = [defaults objectForKey:kPassword];
//initiate the connection handler, get the json response
cHandle = [ConnectHandler new];
NSString *response = [cHandle doSearch:@"": userID :[cHandle hashPass:password]];
listData = (NSMutableArray*)[cHandle parseSearch:response];
//[listTable reloadData];
[response release];
[super viewWillAppear:animated];
}
-(void)viewWillDisappear:(BOOL)animated{
[listData release];
[listTable release];
[super viewWillDisappear:animated];
}
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations.
return YES;
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc. that aren't in use.
}
- (void)viewDidUnload {
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
#pragma mark -
#pragma mark Search View
-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
listData = nil;
[listTable reloadData];
query = searchBar.text;
[searchBar resignFirstResponder];
[listData removeAllObjects];
}
-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
searchBar.text = @"";
[listTable reloadData];
[searchBar resignFirstResponder];
query = searchBar.text;
[listData removeAllObjects];
[self loadSearch:query];
}
-(void)searchBar:(UISearchBar*)searchBar textDidChange:(NSString*)searchText {
listData = nil;
[listTable reloadData];
query = searchBar.text;
[listData removeAllObjects];
[self loadSearch:query];
}
-(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar
{
[listTable reloadData];
}
-(void)loadSearch:(NSString *)q{
self.editing = YES;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
userID = [defaults objectForKey:kUserID];
password = [defaults objectForKey:kPassword];
NSString *response = [cHandle doSearch:q :userID :[cHandle hashPass:password]];
listData = (NSMutableArray*)[cHandle parseSearch:response];
[listTable reloadData];
for (UITableViewCell *cell in [listTable visibleCells]) {
NSIndexPath *cellIndexPath = [listTable indexPathForCell:cell];
[listTable cellForRowAtIndexPath:cellIndexPath];
}
[response release];
}
- (void)dealloc {
[listData release];
[cHandle release];
[super dealloc];
}
#pragma mark -
#pragma mark Table View Data Source Methods
-(NSInteger)numberOfSectionsInTableView:(UITableView*)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView*)tableView numberOfRowsInSection:(NSInteger)section{
return [listData count];
}
-(UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath
{
static NSString *cellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil){
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier] autorelease];
}
row = [indexPath row];
if (row >= [listData count]){
cell.textLabel.text = @"";
}else {
NSMutableString *cellText = [[NSMutableString alloc] initWithString:[[listData objectAtIndex:row] objectAtIndex:0]];
[cellText appendString:@", "];
[cellText appendString:[[listData objectAtIndex:row] objectAtIndex:1]];
cell.textLabel.textColor = [UIColor whiteColor];
cell.textLabel.text = cellText;
[cellText release];
}
return cell;
}
-(UITableViewCellEditingStyle)tableView:(UITableView*)tableView editingStyleForRowAtIndexPath:(NSIndexPath*)indexPath
{
if (self.editing && indexPath.row == ([listData count]))
return UITableViewCellEditingStyleInsert;
else {
return UITableViewCellEditingStyleDelete;
}
}
-(void)tableView:(UITableView*)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath*)indexPath {
[listTable beginUpdates];
if (editingStyle == UITableViewCellEditingStyleDelete)
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
[cell setUserInteractionEnabled:NO];
cell.selected = NO;
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
} else {
}
[listTable endUpdates];
}
-(BOOL)tableView:(UITableView*)tableView canMoveRowAtIndexPath:(NSIndexPath*)indexPath
{
return YES;
}
@end
答案 0 :(得分：0)
在您的代码中，似乎在字符串上调用了一个方法而不是其他方法。尝试调试你的应用程序在cellForRowAtIndexPath中放置一个断点。
答案 1 :(得分：0)
首先，uitableview引用插座不应该连接到阵列，你必须将它连接到uitableview。接下来，tableview的datesource和delegate也应该设置为实现它们的类。
在viewDidLoad上，您必须在uitableview上调用reloadData。这样，在需要滚动之前，将更新tableview。还粘贴一些代码，以便可以调试其他问题。