tableView
下面有iAd banner
和tableView
。
目标
当tableViews
无法接收广告时,我试图让banner
身高变大。当它可以获得广告时,tableViews
高度应该缩小。 (如果可能,我想有动画。)
问题
当我运行应用程序时,banner
最初被隐藏(请参阅下面的代码),然后是
tableViews
高度就像是banner
一样。意思是底部有空间。然后,当出现banner
时,tableViews
高度变得更小,并且它有2 banners
的空间。
(如果这不清楚请告诉我,我会发布图片。)
以下是约束条件:
以下是代码:
func bannerViewDidLoadAd(banner: ADBannerView!) {
self.bottomAddView?.hidden = false
}
func bannerView(banner: ADBannerView!, didFailToReceiveAdWithError error: NSError!) {
self.bottomAddView?.hidden = true
}
更新
我尝试向height constraint
添加ad banner
,当我运行该应用时,我收到以下错误:
Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<myAPp.MainViewController 0x7f9bd1d213b0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key bottomAddView.'
*** First throw call stack:
(
0 CoreFoundation 0x000000011048ac65 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x0000000110123bb7 objc_exception_throw + 45
2 CoreFoundation 0x000000011048a8a9 -[NSException raise] + 9
3 Foundation 0x000000010fcb9b53 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 259
4 CoreFoundation 0x00000001103d2d50 -[NSArray makeObjectsPerformSelector:] + 224
5 UIKit 0x0000000110d0752b -[UINib instantiateWithOwner:options:] + 1506
6 UIKit 0x0000000110b5f718 -[UIViewController _loadViewFromNibNamed:bundle:] + 242
7 UIKit 0x0000000110b5fd08 -[UIViewController loadView] + 109
8 UIKit 0x0000000110b5ff79 -[UIViewController loadViewIfRequired] + 75
9 UIKit 0x0000000110b9001b -[UINavigationController _layoutViewController:] + 44
10 UIKit 0x0000000110b90565 -[UINavigationController _updateScrollViewFromViewController:toViewController:] + 216
11 UIKit 0x0000000110b90664 -[UINavigationController _startTransition:fromViewController:toViewController:] + 92
12 UIKit 0x0000000110b91448 -[UINavigationController _startDeferredTransitionIfNeeded:] + 523
13 UIKit 0x0000000110b91f0e -[UINavigationController __viewWillLayoutSubviews] + 43
14 UIKit 0x0000000110cdc715 -[UILayoutContainerView layoutSubviews] + 202
15 UIKit 0x0000000110aafa2b -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 536
16 QuartzCore 0x000000011275dec2 -[CALayer layoutSublayers] + 146
17 QuartzCore 0x00000001127526d6 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380
18 QuartzCore 0x0000000112752546 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
19 QuartzCore 0x00000001126be886 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 242
20 QuartzCore 0x00000001126bfa3a _ZN2CA11Transaction6commitEv + 462
21 UIKit 0x0000000110a2da2d -[UIApplication _reportMainSceneUpdateFinished:] + 44
22 UIKit 0x0000000110a2e6f1 -[UIApplication _runWithMainScene:transitionContext:completion:] + 2648
23 UIKit 0x0000000110a2d0d5 -[UIApplication workspaceDidEndTransaction:] + 179
24 FrontBoardServices 0x000000011771d5e5 __31-[FBSSerialQueue performAsync:]_block_invoke_2 + 21
25 CoreFoundation 0x00000001103be41c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
26 CoreFoundation 0x00000001103b4165 __CFRunLoopDoBlocks + 341
27 CoreFoundation 0x00000001103b3947 __CFRunLoopRun + 887
28 CoreFoundation 0x00000001103b3366 CFRunLoopRunSpecific + 470
29 UIKit 0x0000000110a2cb42 -[UIApplication _run] + 413
30 UIKit 0x0000000110a2f900 UIApplicationMain + 1282
31 myApp 0x000000010f9b3207 main + 135
32 libdyld.dylib 0x0000000112f82145 start + 1
33 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
答案 0 :(得分:1)
为您的iAd横幅添加高度约束,并在ViewController中设置它的插座。并改变你的功能:
func bannerViewDidLoadAd(banner: ADBannerView!) {
self.bottomAddView?.hidden = false
self.yourBannerHeightConstraint.constant = someValue
}
func bannerView(banner: ADBannerView!, didFailToReceiveAdWithError error: NSError!) {
self.bottomAddView?.hidden = true
self.yourBannerHeightConstraint.constant = 0
}
就是这样!