当一行被删除时，无论我传递什么动画值，它总是向左滑动。我希望它能像许多股票应用程序一样上滑。
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
self.tableData = [][[self.tableData mutableCopy] removeObjectAtIndex:indexPath.row] copy];
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationTop];
}
}
这是完整的tableview控制器代码，它有很多内容。这就是我最初没有发布的原因。
@interface FMListViewController ()
@property (strong) NSArray *currentLocations;
@property (assign) BOOL isEditing;
@end
@implementation FMListViewController
- (void)viewDidLoad {
[super viewDidLoad];
UISegmentedControl *viewType = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:@"List", @"Map", nil]];
CGRect viewTypeRect = viewType.frame;
viewTypeRect.size.width = 150.0f;
viewType.frame = viewTypeRect;
viewType.selectedSegmentIndex = 0;
[viewType addTarget:self action:@selector(viewTypeChange:) forControlEvents:UIControlEventValueChanged];
self.navigationItem.titleView = viewType;
self.currentLocations = [[FMLocations sharedManager] allLocations];
//watch for weather updates
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(weatherUpdated) name:@"weatherUpdated" object:nil];
//watch for changes to saved locations
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(locationsUpdated) name:@"locationsUpdated" object:nil];
self.isEditing = NO;
}
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
// this UIViewController is about to re-appear, make sure we remove the current selection in our table view when swiping back occurs
NSIndexPath *tableSelection = [self.tableView indexPathForSelectedRow];
[self.tableView deselectRowAtIndexPath:tableSelection animated:NO];
[self.navigationController setToolbarHidden:YES animated:NO];
}
- (void)viewTypeChange:(UISegmentedControl *)segControl{
NSLog(@"change to map");
[(FMNavController *)[self navigationController] changeViewType];
segControl.selectedSegmentIndex = 0;
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)weatherUpdated{
[self.tableView reloadData];
[self.refreshControl endRefreshing];
}
- (void)locationsUpdated{
if(self.isEditing){
self.currentLocations = [[FMLocations sharedManager] savedLocations];
}else{
self.currentLocations = [[FMLocations sharedManager] allLocations];
}
[self.tableView reloadData];
}
#pragma mark - Table Editing Stuff
- (IBAction)toggleEditing:(id)sender{
if(self.isEditing){
self.isEditing = NO;
self.currentLocations = [[FMLocations sharedManager] allLocations];
[self.tableView reloadData];
UIBarButtonItem *newRightItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:self action:@selector(toggleEditing:)];
self.navigationItem.rightBarButtonItem = newRightItem;
[self.tableView setEditing:NO animated:YES];
}else{
self.isEditing = YES;
self.currentLocations = [[FMLocations sharedManager] savedLocations];
[self.tableView reloadData];
UIBarButtonItem *newRightItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(toggleEditing:)];
self.navigationItem.rightBarButtonItem = newRightItem;
[self.tableView setEditing:YES animated:YES];
}
}
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
if(indexPath.row == 0 && [[FMLocations sharedManager] currentLocation] && !self.isEditing){
return NO;
}
return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
//add code here for when you hit delete
NSMutableArray *newLocations;
int arrayOffset = 0;
if([[FMLocations sharedManager] currentLocation] && !self.isEditing){
arrayOffset = -1;
}
newLocations = [[[FMLocations sharedManager] savedLocations] mutableCopy];
int itemToRemove = (int)indexPath.row + arrayOffset;
if(itemToRemove < 0 || itemToRemove > [newLocations count]){
NSLog(@"invalid item to remove");
}else{
[newLocations removeObjectAtIndex:itemToRemove];
[[FMLocations sharedManager] saveSavedLocations:[newLocations copy]];
if(self.isEditing){
self.currentLocations = [[FMLocations sharedManager] savedLocations];
}else{
self.currentLocations = [[FMLocations sharedManager] allLocations];
}
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationTop];
}
}
}
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
if(indexPath.row == 0 && [[FMLocations sharedManager] currentLocation] && !self.isEditing){
return NO;
}
return YES;
}
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath{
NSMutableArray *editableLocations = [[[FMLocations sharedManager] savedLocations] mutableCopy];
if(editableLocations && [editableLocations count] > sourceIndexPath.row && [editableLocations count] > destinationIndexPath.row){
NSInteger fromIndex = sourceIndexPath.row;
NSInteger toIndex = destinationIndexPath.row;
id object = [editableLocations objectAtIndex:fromIndex];
[editableLocations removeObjectAtIndex:fromIndex];
[editableLocations insertObject:object atIndex:toIndex];
[[FMLocations sharedManager] saveSavedLocations:[editableLocations copy]];
}
}
#pragma mark - Refresh control action
- (IBAction)doRefreshTable:(id)sender{
[[ForecastManager sharedManager] updateForecasts];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
return [self.currentLocations count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
//NSLog(@"getting cell");
FMTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"FMLocationCell" forIndexPath:indexPath];
NSDictionary *theLocation = [self.currentLocations objectAtIndex:indexPath.row];
// Configure the cell...
cell.locationLabel.text = [[theLocation objectForKey:@"name"] uppercaseString];
WeatherObject *locationWeather = [[ForecastManager sharedManager] weatherObjectForLocation:[[theLocation objectForKey:@"id"] intValue]];
[cell setCurrentTemp:locationWeather.currentTemp];
[cell configureForecastViews:locationWeather.forecastObjects];
[cell.weatherPreviewContainer setNeedsDisplay];
return cell;
}
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
if([segue.identifier isEqualToString:@"showLocation"]){
FMDetailViewController *detailController = [segue destinationViewController];
NSDictionary *theLocation = [self.currentLocations objectAtIndex:self.tableView.indexPathForSelectedRow.row];
detailController.navigationItem.title = [theLocation objectForKey:@"name"];
detailController.detailLocation = theLocation;
}
}
答案 0 :(得分：0)
您可以尝试以下解决方案：
1）用下面的行替换你的行
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationTop];
[tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationTop];
2）使用以下代码更改代码：
[self.tableView beginUpdates];
[self.tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationTop];
[self.tableView endUpdates];
希望这有帮助！
答案 1 :(得分：0)
请尝试
不要直接删除单元格，首先使用单元格高度为零。 NSIndexPath *deleteIndexPath;
在删除之前的代码下面
[tbl beginUpdates];
deleteIndexPath = indexPath;
[tbl reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
[tbl endUpdates];
并在set hight方法中使用
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{ if (indexPath == deleteIndexPath) {
return 0;
}
return 50;
}