iPad下横屏调用系统相册

*** Terminating app due to uncaught exception'UIApplicationInvalidInterfaceOrientation', reason: 'Supportedorientations has no common orientation with the application, and[PUUIAlbumListViewController shouldAutorotate] is returningYES'

解决方案：
1、在AppDelegate中加入以下代码：

-(UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
return UIInterfaceOrientationMaskAll;
else
return UIInterfaceOrientationMaskAllButUpsideDown;
}

2、在显示UIImagePickerController的位置不要使用推出的方式，改为addSubView的方式：

[self.view addSubview:imPickerController.view];

ps：如果一定要使用推出的方式，会导致推出UIImagePickerController后再返回到原来的ViewController会旋转（竖屏、横屏均可），那么可以在该ViewController中添加下面代码解决：

• (BOOL)shouldAutorotate
  {
  return NO;
  }