メインビューに配置すると完全に機能する UIPickerView があります。ただし、サブ UIView (要素の視覚的な配置を支援するため) に配置するとすぐに、対話は完全に停止します。UIPickerView は引き続きすべてのデータを正しく受け取りますが、相互作用はありません。
ストーリーボードを使用して、UIPickerView を UIView から戻すと、すぐに機能します。
- (void)viewDidLoad
{
[super viewDidLoad];
// Add provinces into array
[self.provinceView setHidden:YES];
isVisible = NO;
self.provinceArray = [[NSArray alloc] initWithObjects:@"Alberta",@"British Columbia",@"Manitoba",@"New Brunswick",@"Newfoundland and Labrador",@"Northwest Territories",@"Nova Scotia",@"Nunavut",@"Ontario",@"Prince Edward Island",@"Quebec",@"Saskatchewan",@"Yukon",nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
return 1;
}
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
return [self.provinceArray count];
}
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(40, 0,(pickerView.frame.size.width-40), 44)];
label.textColor = [UIColor colorWithRed:0.035 green:0.094 blue:0.345 alpha:1.0];
label.font = [UIFont fontWithName:@"HelveticaNeue" size:14];
label.text = [self.provinceArray objectAtIndex:row];
return label;
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{
self.provinceLabel.text = [self.provinceArray objectAtIndex:row];
}