關於我試圖消除的PickerView令人討厭的事情是,如果用戶必須移走行零並重新選擇它。我喜歡它,所以如果用戶決定選擇零行,他可以簡單地按下按鈕進入下一個視圖,並選擇行零值。UIPickerView選擇零行如果PickerView沒有觸及
有什麼想法?
非常感謝
這裏是我的代碼 - 此刻,如果連接到saveSelectedCondition按鈕被按下,而pickerView沒有移出行0,空則返回selectedCondition,而不是條件值行0:
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
Condition *condition = [[self.fetchedResultsController fetchedObjects] objectAtIndex:row];
self.selectedCondition = condition;
NSLog(@"The '%@' condition was selected using the picker", self.selectedCondition.name);
}
- (IBAction)saveSelectedCondition:(id)sender {
[self.selectedCondition setValue:@"YES" forKey:@"isSelectedCondition"];
[self.managedObjectContext save:nil];
NSLog(@"Saving selected condition (%@) with isSelectedCondition set to '%@'", self.selectedCondition.name, self.selectedCondition.isSelectedCondition);
}
你想,如果用戶沒有觸及然後機行0被自動選中,是嗎? – Pratik 2013-04-05 04:12:40
是的,這正是我想做的事情,我已經整理出來的performFetch方法 – 2013-04-05 11:45:08
只要把下面一行代碼在您的viewDidLoad方法中,並嘗試 [pickerView selectRow:0 inComponent:0動畫:是]; 並讓我知道它會工作或不 – Pratik 2013-04-05 11:53:46