如何在 MKMapView (SDK3.2) 中使用 UIPopoverController 在 iPad 上关闭 PopoverAnimated
我有一个带注释的 MKMapView (也是一个 UIPopoverControllerDelegate)。该MapView在MKTestMapView.h文件中,在@interface中定义了一个UIPopoverController* popoverController
和一个@property(非原子,保留)UIPopoverController* popoverController;
在@interface
部分之外定义。该控制器在 MKTestMapView.m 文件中为 @synthesized
,并在 - (void)dealloc
部分中发布。此 MapView 中的注释已将 rightCalloutAccessoryView
定义为以下内容:
- (void)mapView:(MKMapView *)mapView2 annotationView:(MKAnnotationView *)aview calloutAccessoryControlTapped:(UIControl *)control{
...
CGPoint leftTopPoint = [mapView2 convertCoordinate:aview.annotation.coordinate toPointToView:mapView2];
int boxDY=leftTopPoint.y;
int boxDX=leftTopPoint.x;
NSLog(@"\nDX:%d,DY:%d\n",boxDX,boxDY);
popoverController = [[UIPopoverController alloc] initWithContentViewController:controller];
popoverController.delegate = self;
CGSize maximumLabelSize = CGSizeMake(320.0f,600.0f);
popoverController.popoverContentSize = maximumLabelSize;
CGRect rect = CGRectMake(boxDX, boxDY, 320.0f, 600.0f);
[popoverController presentPopoverFromRect:rect inView:self.view permittedArrowDirections:UIPopoverArrowDirectionRight animated:YES];
...
}
现在到了有趣的部分。首先,我不确定是否需要 maximumLabelSize 和 rect 具有相同的大小。我是弹出框控制器的新手,所以我是凭耳朵来玩的。
好吧,弹出框显示了。现在要驳回它。我可以单击 mapView2 上的任意位置,弹出窗口就会消失...但我需要用户在更改任何内容时单击视图中的按钮。呃!
文档显示:
要以编程方式关闭弹出窗口, 调用dismissPopoverAnimated: 弹出控制器的方法。
好吧,问题是:根据 popoverController 工作方式的定义,您在显示的弹出窗口的视图中单击内部(以单击按钮),但必须触发 dismissPopoverAnimated:启动此弹出窗口视图的控制器的 code> 方法,在我的例子中,是 MKTestMapView.m 文件内的
popoverController
。
现在,说了这么多,请记住,[popoverController release]
不会发生,直到:
- (void)dealloc {
[popoverController release];
[mapView release];
[super dealloc];
}
所以,我只需在按钮内执行以下操作(凌乱但可能有效):(
假设我的弹出窗口视图是TableView)中:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
MKTestMapView * mKTestMapView = [[MKTestMapView alloc] init];
[[mKTestMapView popoverController].dismissPopoverAnimated:YES];
}
这是我的问题:我无法弄清楚执行上述操作是否为我提供了对现有视图的参考
(如果有这样的事情)在屏幕上——因此视图是该 popoverController 的所有者。如果它像我一样简单,
[[[self parentView] popoverController].dismissPopoverAnimated:YES];
我会开枪自杀,因为我认为这也不是正确的语法!
这应该很容易......但我迷路了。 (可能只是对我正在学习的 iPad 的这么多差异感到沮丧)。
谁能解释更多吗?
I have a MKMapView (also a UIPopoverControllerDelegate) with Annotations. This MapView has, in the MKTestMapView.h file, a UIPopoverController* popoverController
defined in the @interface and a @property (nonatomic, retain) UIPopoverController* popoverController;
defined outside of the @interface
section. This controller is @synthesized
in the MKTestMapView.m file and it is released in the - (void)dealloc
section. The Annotations in this MapView have rightCalloutAccessoryView
s defined to the following:
- (void)mapView:(MKMapView *)mapView2 annotationView:(MKAnnotationView *)aview calloutAccessoryControlTapped:(UIControl *)control{
...
CGPoint leftTopPoint = [mapView2 convertCoordinate:aview.annotation.coordinate toPointToView:mapView2];
int boxDY=leftTopPoint.y;
int boxDX=leftTopPoint.x;
NSLog(@"\nDX:%d,DY:%d\n",boxDX,boxDY);
popoverController = [[UIPopoverController alloc] initWithContentViewController:controller];
popoverController.delegate = self;
CGSize maximumLabelSize = CGSizeMake(320.0f,600.0f);
popoverController.popoverContentSize = maximumLabelSize;
CGRect rect = CGRectMake(boxDX, boxDY, 320.0f, 600.0f);
[popoverController presentPopoverFromRect:rect inView:self.view permittedArrowDirections:UIPopoverArrowDirectionRight animated:YES];
...
}
Now here comes the fun part. First of all, I am not sure if I need maximumLabelSize
and the rect
to be the same size. I am new to the popovercontroller so I am playing this by ear..
Okay, the popover shows. Now to dismissing it. I can click anywhere on mapView2 and the popover goes away...but I need the user to click a button in the view if they change anything. URGH!
The docs show:
To dismiss a popover programmatically,
call the dismissPopoverAnimated:
method of the popover controller.
Well, here is the problem: By definition of how the popoverController works, you are clicking inside the view of the displayed popover (to click the button) but have to trigger the dismissPopoverAnimated:
method of the controller that launched this popover view, in my case, the popoverController
inside the MKTestMapView.m file.
Now, having said all that, remember, [popoverController release]
doesn't happen until:
- (void)dealloc {
[popoverController release];
[mapView release];
[super dealloc];
}
So, do i just do the following inside the button (messy but may work):
(Assuming my popover view is a TableView) In the:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
MKTestMapView * mKTestMapView = [[MKTestMapView alloc] init];
[[mKTestMapView popoverController].dismissPopoverAnimated:YES];
}
Here is my issue: I cannot figure out whether doing the above gives me a reference
(if there is such a thing) to the existing view that is on the screen -- and therefore the view that is the owner of that popoverController. If it is as simple as
[[[self parentView] popoverController].dismissPopoverAnimated:YES];
I will shoot myself cos I don't think that is the correct syntax either!
This should be easy...yet I am lost. (probably just frustrated with so many iPad differences that I am learning).
Can anyone explain more?
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我遇到了同样的问题...我的视图顶部有一个简洁的“关闭”按钮(X),由弹出窗口加载,但它不起作用。在我的通用应用程序中,它将显示为新视图,因此代码应该保留。
我现在所做的是将以下内容添加到我的DetailedPinView(弹出窗口加载的视图)中:
在detailedPinView.h 文件中:
在detailedPinView.m 文件中:
X 按钮使用IBAction 关闭视图,这就是我所做的那里:
在detailedPinView.m文件中:
在加载我的地图和弹出窗口视图的类中,我添加了以下代码:
我不知道这是否是您所希望的答案,我认为这可能有点凌乱的方式来做到这一点......但是给出时间安排这就像一个魅力:)
I had the same problem... I had a neat "close" button (X) in the top of my view loaded by the popover, but it didn't work. In my universal app it will be presented as a new view, so that code should stay.
What I did now was that I added the following to my detailedPinView (the view the popover loads):
in the detailedPinView.h file:
In the detailedPinView.m file:
The X button closes the view using an IBAction, this is what I did there:
In the detailedPinView.m file:
In the class loading the my map and the popover view I added the following code:
I don't know if the was the answer you were hoping for, I think it might be a bit of a messy way to do it... but giving the time schedule this worked like a charm :)
这是另一个简单的解决方案。
我发现我们应该按照以下步骤来明确消除弹出窗口。
在 iOS8 之前,几乎所有人都可能会先释放由弹出窗口加载的视图,然后以编程方式关闭弹出窗口。
然而,在 iOS8 中,我们以相反的方式执行这些步骤。
在iOS8之前,我关闭弹出窗口的代码
在iOS8中,关闭代码部分应更改如下,
Here is another simple solution.
I found that we should follow the following steps for clearly dismissing popovers.
Before iOS8, almost all of us may release a view loaded by a popover first, and then we programmatically dismiss the popover.
However, in iOS8, we do the steps in revers.
Before iOS8, my code of dismissing a popover
In iOS8, the dismissing code part should be changed as below,