after updated to iOS8, the cordova datepicker plugin not work. it crashed with following message:
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UITableView dataSource is not set'
but i don't see any UITableView related code in the plugin source code. i don't know, maybe there is an internal UITableView in the UIDatePicker?
here is the code(i remove some non-relative code for easy reading):
- (UIPopoverController *)createPopover:(NSMutableDictionary *)options {
UIView *datePickerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, pickerViewWidth, pickerViewHeight)];
if(!self.datePicker){
self.datePicker = [self createDatePicker:options frame:frame];
[self.datePicker addTarget:self action:@selector(dateChangedAction:) forControlEvents:UIControlEventValueChanged];
}
NSDateFormatter *formatter = [self createISODateFormatter:@"yyyy-MM-dd'T'HH:mm:ss'Z'" timezone:[NSTimeZone defaultTimeZone]];
NSString *dateString = [options objectForKey:@"date"];
self.datePicker.date = [formatter dateFromString:dateString];// if remove this line, it works fine
[datePickerView addSubview:self.datePicker];
UIViewController *datePickerViewController = [[UIViewController alloc]init];
datePickerViewController.view = datePickerView;
UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:datePickerViewController];
popover.delegate = self;
[popover setPopoverContentSize:CGSizeMake(pickerViewWidth, pickerViewHeight) animated:NO];
[popover presentPopoverFromRect:anchor inView:self.webView.superview permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
return popover;
}
this line:
self.datePicker.date = [formatter dateFromString:dateString];
finally leads to crash, and with debug, i found the value of dateString is:
2014-10-17T10:0:00Z
2014-10-17T20:0:00Z
and it crash from second display, the first time is always ok
could you please give me some clue? thanks
finally i find out the issue:
the source code of cordova DatePicker, reuse the UIDatePicker instance:
if(!self.datePicker){
self.datePicker = [self createDatePicker];
[self.datePicker addTarget];
}
and, it works fine in iOS7, but lead to crash in iOS8.
in iOS8, don't share UIDatePicker instance in multi UIView, so i modify the code to:
// in iOS8, UIDatePicker couldn't be shared in multi UIViews, it will cause crash. so create new UIDatePicker instance every time
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) {
self.datePicker = [self createDatePicker:options frame:frame];
[self.datePicker addTarget:self action:@selector(dateChangedAction:) forControlEvents:UIControlEventValueChanged];
}else{
if(!self.datePicker){
self.datePicker = [self createDatePicker:options frame:frame];
[self.datePicker addTarget:self action:@selector(dateChangedAction:) forControlEvents:UIControlEventValueChanged];
}
}
hope this can help someone like me
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