Question

我在UIPickerView内显示UIPopoverController。 UIPickerView的尺寸为：320x216。出于某种原因，UIPickerView似乎是正确高度的约3/5，而UIPopoverController一直向下延伸到屏幕的底部。

请参阅以下代码。

谢谢！

self.picker = [[[UIPickerView alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height+44, 320, 216)] autorelease];
self.picker.backgroundColor = [UIColor clearColor];
self.picker.showsSelectionIndicator = YES;
self.picker.delegate = self;
self.picker.dataSource = self;
self.picker.transform = CGAffineTransformMakeScale(-1, 1);
UIViewController *pickerController = [[UIViewController alloc] init];
[pickerController setView:self.picker];
UIPopoverController *pickerPopover = [[UIPopoverController alloc] initWithContentViewController:pickerController];
[pickerPopover presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
pickerPopover.delegate = self;
self.popover = pickerPopover;
[pickerController release];
[pickerPopover release];

Answer 1

“压扁”选择器视图的原因似乎是这一行：

[pickerController setView:self.picker];

相反，将选择器视图添加为子视图：

[pickerController.view addSubview:picker];

接下来，要修复弹出窗口高度，请在显示之前设置popoverContentSize：

pickerPopover.popoverContentSize = picker.frame.size;

另外，修复选择器视图的框架：

CGRectMake(0, self.view.bounds.size.height+44, 320, 216)

到此：

CGRectMake(0, 0, 320, 216)

UIPopoverController太大而UIPickerView太小

1 个答案: