iAd在模拟器上运行但在设备上崩溃（ipad） [英] iAd works on simulator but crash on device(ipad)

问题描述

我正在尝试将iAd集成到我的应用中，这是我的工作

I am trying to integrate iAd to my app, here is what I do

1. 创建单个视图应用（设备类型通用）Xcode 5.1。


2. 将iAd.framework添加到我的项目中。


3. 导入< ViewController.h中的iAd / iAd.h>


4. 在viewDidLoad中添加 self.canDisplayBannerAds = YES; 方法。


5. 在iPhone和iPad模拟器上编译并运行应用程序

1. Create a single view app(devices type universal) by Xcode 5.1.
2. Add iAd.framework to my project.
3. Import <iAd/iAd.h> in ViewController.h
4. Add self.canDisplayBannerAds = YES; in viewDidLoad method.
5. Compile and run the app on iPhone and iPad simulator

应用效果很好在模拟器上，我可以看到我的应用程序底部的横幅。

The app works well on both simulator and I can see the banner at the bottom of my app.

但是当我在iPad上测试它（运行IOS 6.1）时，应用程序崩溃了，这里是我得到的。

But when I test it on my iPad(running IOS 6.1), the app crashes, Here is what I got.

2014-04-19 19:25:56.409 TestiAd[12771:907] -[ViewController setCanDisplayBannerAds:]: unrecognized selector sent to instance 0x1fd7b620
2014-04-19 19:25:56.413 TestiAd[12771:907] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[ViewController setCanDisplayBannerAds:]: unrecognized selector sent to instance 0x1fd7b620'
*** First throw call stack:
(0x336442a3 0x3b4e497f 0x33647e07 0x33646531 0x3359df68 0xfb125 0x3546b595 0x354abd79 0x354a7aed 0x354e91e9 0x354ac83f 0x354a484b 0x3544cc39 0x3544c6cd 0x3544c11b 0x371555a3 0x371551d3 0x33619173 0x33619117 0x33617f99 0x3358aebd 0x3358ad49 0x354a3485 0x354a0301 0xfb3a5 0x3b91bb20)
libc++abi.dylib: terminate called throwing an exception
(lldb) 

我在SO上有很多类似的问题，但其中很多都与在iPad上以可计算模式运行iPhone应用程序有关，但事实并非如此，我正在通用应用程序上进行测试。

I have got lots of similar question on SO, but many of them were related to running iPhone app as computable mode on iPad, but this is not the case, I am testing on a Universal app.

推荐答案

问题出在iOS版本上。

来自 Doc ： C和isplayBannerAds 是在iOS7中引入的，在iOS6上不存在。

所以，您可能想要这样做：

The issue is on the iOS version.
From the Doc: canDisplayBannerAds is introduced in iOS7 and doesn't exist on iOS6..
So, you may want to do :

if ([self respondsToSelector:@selector(setCanDisplayBannerAds:)])
    self.canDisplayBannerAds = YES;

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