操作表被标签栏捕获
这是一个棘手的问题,我已经研究了一段时间了。我有一个操作表出现在带有选项卡栏的视图中,有时当我关闭操作表时,它会被“捕获”在选项卡栏中并且无法执行任何操作。该应用程序不会崩溃,因为如果我最小化它然后回来它被驳回,只是似乎模态行为没有被正确驳回。
我最近将操作表的显示方式从“showInView”更改为“showFromTabBar”,并且不确定这是否会造成问题。
谢谢, William
编辑:
下面是我用来关闭操作表的代码:
-(void)doneButtonPressed:(id)sender{
if ([[self viewWithTag:1] isKindOfClass:[PickerView class]]) {
PickerView *picker = (PickerView *)[self viewWithTag:1];
if (picker.selectedRow == nil) {
[picker populateSelectRowForRow:0 andComponent:0];
}
NSNotification *note = [NSNotification notificationWithName:@"doneButtonPressed" object:self.indexPath userInfo:picker.selectedRow];
[[NSNotificationCenter defaultCenter] postNotification:note];
}else {
DatePickerView *picker = (DatePickerView *)[self viewWithTag:1];
NSDictionary *extraInfo = [[NSDictionary alloc] initWithObjects:[[NSArray alloc] initWithObjects:[self formatDateToString:[picker date]], nil] forKeys:[[NSArray alloc] initWithObjects:@"value", nil]];
NSNotification *note = [NSNotification notificationWithName:@"doneButtonPressed" object:self.indexPath userInfo:extraInfo];
[[NSNotificationCenter defaultCenter] postNotification:note];
}
[self dismissWithClickedButtonIndex:0 animated:YES];
}
以及调用的通知方法:
-(void)pickerUpdate:(NSNotification *)note{
NSIndexPath *indexPath = [note object];
NSDictionary *extraInfo = [note userInfo];
NSDictionary *dict = [[tableController.sectionAndFields objectAtIndex:indexPath.section] objectAtIndex:(indexPath.row + kHeaderAndFooterOffset)];
[tableController.formDetails setObject:[extraInfo objectForKey:@"value"] forKey:[dict objectForKey:@"key"]];
NSArray *reloadArray = [[NSArray alloc] initWithObjects:indexPath, nil];
[indexPath release];
[self.tv reloadRowsAtIndexPaths:reloadArray withRowAnimation:NO];
[reloadArray release];
}
This is a tricky one that I've been working on for a while. I have a an action sheet that appears in a view with a tabbar, sometimes when I dismiss the action sheet it gets "caught" in the tabbar and am unable to do anything.The app doesn't crash because if i minimize it and then come back in it is dimissed, it just appears that the modal behavior isn't being dismissed properly.
I recently changed how the action sheet is displayed from "showInView" to "showFromTabBar" and am not sure if this is creating the issue.
Thanks,
William
Edit:
Below is the code I use to dismiss my actionsheet:
-(void)doneButtonPressed:(id)sender{
if ([[self viewWithTag:1] isKindOfClass:[PickerView class]]) {
PickerView *picker = (PickerView *)[self viewWithTag:1];
if (picker.selectedRow == nil) {
[picker populateSelectRowForRow:0 andComponent:0];
}
NSNotification *note = [NSNotification notificationWithName:@"doneButtonPressed" object:self.indexPath userInfo:picker.selectedRow];
[[NSNotificationCenter defaultCenter] postNotification:note];
}else {
DatePickerView *picker = (DatePickerView *)[self viewWithTag:1];
NSDictionary *extraInfo = [[NSDictionary alloc] initWithObjects:[[NSArray alloc] initWithObjects:[self formatDateToString:[picker date]], nil] forKeys:[[NSArray alloc] initWithObjects:@"value", nil]];
NSNotification *note = [NSNotification notificationWithName:@"doneButtonPressed" object:self.indexPath userInfo:extraInfo];
[[NSNotificationCenter defaultCenter] postNotification:note];
}
[self dismissWithClickedButtonIndex:0 animated:YES];
}
and the notification method that is called:
-(void)pickerUpdate:(NSNotification *)note{
NSIndexPath *indexPath = [note object];
NSDictionary *extraInfo = [note userInfo];
NSDictionary *dict = [[tableController.sectionAndFields objectAtIndex:indexPath.section] objectAtIndex:(indexPath.row + kHeaderAndFooterOffset)];
[tableController.formDetails setObject:[extraInfo objectForKey:@"value"] forKey:[dict objectForKey:@"key"]];
NSArray *reloadArray = [[NSArray alloc] initWithObjects:indexPath, nil];
[indexPath release];
[self.tv reloadRowsAtIndexPaths:reloadArray withRowAnimation:NO];
[reloadArray release];
}
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我确实设法解决了这个问题,但感觉很像黑客,我使用
以下方法在代码中引入了延迟:
I did manage to solve this however it feels very much like a hack, I introduced a delay into the code using:
With dismissFromActionSheet being: