UIPopoverController 太大而 UIPickerView 太小
我有一个 UIPickerView 显示在 UIPopoverController 内。 UIPickerView 的尺寸为：320x216。由于某种原因，UIPickerView 似乎是正确高度的 3/5，而 UIPopoverController 一直延伸到屏幕底部。
请参阅下面的代码。
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];
I have a UIPickerView displayed inside a UIPopoverController. The dimensions of the UIPickerView are: 320x216. For some reason, the UIPickerView seems to be ~3/5 of the proper height, and the UIPopoverController spans all the way down to the bottom of the screen.
Please see the code below.
Thanks!
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];
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“压扁”选择器视图的原因似乎是这一行：
相反，将选择器视图添加为子视图：
接下来，要修复弹出窗口的高度，请在呈现之前设置
popoverContentSize：另外，将选取器视图的框架从以下位置修复
为：
The reason for the "squashed" picker view seems to be this line:
Instead, add the picker view as a subview:
Next, to fix the popover height, set
popoverContentSizebefore presenting it:Also, fix the picker view's frame from this:
to this: