有些事情是错的,但我不知道是什么。我无法删除一行。当我的tableview进入editmode红色时,所有行附近的减号都会出现。触摸它们使得在行上显示删除按钮,当它触摸它变为(深红色)并且没有任何反复发生。
这是我的代码(不是全部)+我在编译和运行时没有错误和警告......
- (void)viewDidLoad {
[super viewDidLoad];
// initialize singleton.
appDelegate = (ExchangedAppDelegate *)[[UIApplication sharedApplication]delegate];
// get banks from settings.plist
NSString *tempPath = [self getPathOfSettingsPlist];
appDelegate.banks = [[NSArray alloc]initWithContentsOfFile:tempPath];
navigationItem.rightBarButtonItem = self.editButtonItem;
backButton = [[UIBarButtonItem alloc]initWithTitle:@"Back" style:UIBarButtonSystemItemCancel target:self action:@selector(closeSettingsView)];
navigationItem.leftBarButtonItem = backButton;
}
- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
[super setEditing:editing animated:animated];
[banksTableView setEditing:editing animated:animated];
if (editing) {
addButton = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addBankFromList)];
navigationItem.leftBarButtonItem = addButton;
} else {
navigationItem.leftBarButtonItem = backButton;
NSString *tempPath = [self getPathOfSettingsPlist];
self.picker.hidden = YES;
[appDelegate.banks writeToFile:tempPath atomically:YES];
}
}
- (void)addBankFromList {
// not interesting
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [appDelegate.banks count];
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"BanksTableCell";
indexForPath = indexPath;
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];
cell.selectionStyle = UITableViewCellEditingStyleNone;
}
cell.textLabel.text = [appDelegate.banks objectAtIndex:indexPath.row];
return cell;
}
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle) editingStyle: forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[appDelegate.banks removeObjectAtIndex:indexPath.row];
[banksTableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationRight];
[banksTableView reloadData];
}
}
//// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
NSString *temp = [appDelegate.banks objectAtIndex:fromIndexPath.row];
[appDelegate.banks removeObjectAtIndex:fromIndexPath.row];
[appDelegate.banks insertObject:temp atIndex:toIndexPath.row];
}
答案 0 :(得分:1)
实际上,您在":"
方法名称中添加了一个额外的冒号(commitEditingStyle:
)。添加额外的冒号使得这种方法成为一种完全不同的方法。因此,您的视图控制器认为您没有实现commitEditingStyle:
方法,并且在编辑表视图时没有执行任何操作。
只需在":"
方法中移除editingStyle
后的冒号(commitEditingStyle:
)即可。这将解决问题。那条线应该是这样的,
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle) editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath