在iOS8中: UIPopoverController presentPopoverFromRect不再适用于keyWindow
在iOS8中: UIPopoverController presentPopoverFromRect不再适用于keyWindow
提问于 2014-07-27 08:20:05
正如标题所示，在iOS8中，UIPopoverController presentPopoverFromRect不再适用于UIApplication sharedApplication.keyWindow。(它可以在iOS7中工作)
我验证了以下代码：
TestViewController *test = [[TestViewController alloc] initWithNibName:nil bundle:nil];
if (testPopoverController == nil) {
testPopoverController = [[UIPopoverController alloc] initWithContentViewController:test];
testPopoverController.popoverContentSize = CGSizeMake(250, 95*5);
}
CGPoint point = [sender convertPoint:CGPointMake(0, 0) toView:nil];
CGRect rect = CGRectMake(point.x, point.y, 24, 24);
[testPopoverController presentPopoverFromRect:rect inView:[UIApplication sharedApplication].keyWindow permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];回答 4
Stack Overflow用户
发布于 2014-09-19 22:50:08
我想出的最好的解决方案是有条件地处理它。如果是在iOS 7上，请使用我们用于在key窗口中显示UIPopoverController的工作代码。如果是在iOS 8上，请使用以下命令：
viewController.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *presentationController = viewController.popoverPresentationController;
[presentationController setDelegate:self];
presentationController.permittedArrowDirections = 0;
presentationController.sourceView = [[UIApplication sharedApplication] keyWindow];
presentationController.sourceRect = [[UIApplication sharedApplication] keyWindow].bounds;
[viewController setPreferredContentSize:CGSizeMake(320, 480)];
[parentController presentViewController:viewController animated:YES completion:nil];这最终与以下功能相同：
self.popoverController = [[UIPopoverController alloc] initWithContentViewController:viewController];
[self.popoverController setDelegate:self];
[self.popoverController setPopoverContentSize:isLandscape() ? CGSizeMake(480*2, 320*2) : CGSizeMake(320*2, 480*2)];
[self.padPopover presentPopoverFromRect:CGSizeMake(320, 480)
inView:[[UIApplication sharedApplication] keyWindow]
permittedArrowDirections:0
animated:YES];Stack Overflow用户
发布于 2014-12-10 04:55:48
在中更改inView参数
[testPopoverController presentPopoverFromRect:rect inView:[UIApplication sharedApplication].keyWindow permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];至
[testPopoverController presentPopoverFromRect:rect inView:"your current View Controller's view" permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];并确保它在调度区块中
dispatch_async(dispatch_get_main_queue(), ^{})；
另外，如果矩形原点n的大小值在边界内，则kip会更改它。
Stack Overflow用户
发布于 2014-10-21 17:13:35
请尝试以下链接中的解决方案：http://github.com/werner77/WEPopover
首先，让我们来做这个代码：
if ([viewController respondsToSelector:@selector(setPreferredContentSize:)]) {
viewController.preferredContentSize = CGSizeMake(200, 300.0f);
} else {
viewController.contentSizeForViewInPopover = CGSizeMake(200.0f, 300.0f);
}
self.popoverController = [[popoverClass alloc] initWithContentViewController:viewController];
if ([self.popoverController respondsToSelector:@selector(setContainerViewProperties:)]) {
[self.popoverController setContainerViewProperties:[self improvedContainerViewProperties]];
}
self.popoverController.delegate = self;
[self.popoverController presentPopoverFromRect:[sender bounds]
inView:sender
permittedArrowDirections:UIPopoverArrowDirectionUp
animated:YES];我希望这能帮到你。它在iOS6-iOS8上进行了测试和工作。
PS。别忘了查看viewDidLoad，并感谢WEPopover库。
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原文链接：
https://stackoverflow.com/questions/24976741
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