MPMoviePlayerViewController 在 OS 3.0 上崩溃
在测试我的应用程序期间，我发现它在 OS 3.0.1 和 3.1.1(iPod Touch) 的 iPhone 上崩溃。
我有以下代码用于播放放置在远程服务器上的视频。它可以在 iOS 4.0 和 OS 3.2 的 iPad 上完美运行。
Xcode 设置为使用 SDK 4.0，但目标操作系统是 3.0。
NSURL *url = [NSURL URLWithString:selectedLink];
MPMoviePlayerViewController *moviePlayer = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
[self presentMoviePlayerViewControllerAnimated:moviePlayer];
[moviePlayer release];
在 3.0.1 和 3.1.1 上运行时，我收到以下错误：
-[UIViewController presentMoviePlayerViewControllerAnimated:]: unrecognized selector sent to instance 0x231550
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: -[UIViewController presentMoviePlayerViewControllerAnimated:]: unrecognized selector sent to instance 0x231550'
希望你们能帮助我。
During the testing of my app i discovered that it crashed on an iphone with OS 3.0.1 and 3.1.1(iPod Touch).
I have the following code for playing the video which is placed on a remote server. It works flawlessly on the iOS 4.0 and iPad with OS 3.2
Xcode is setup to use SDK 4.0 but target OS is 3.0.
NSURL *url = [NSURL URLWithString:selectedLink];
MPMoviePlayerViewController *moviePlayer = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
[self presentMoviePlayerViewControllerAnimated:moviePlayer];
[moviePlayer release];
When run on 3.0.1 and 3.1.1 I receive the following error:
-[UIViewController presentMoviePlayerViewControllerAnimated:]: unrecognized selector sent to instance 0x231550
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: -[UIViewController presentMoviePlayerViewControllerAnimated:]: unrecognized selector sent to instance 0x231550'
Hope you guys can help me.
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MPMoviePlayerViewController 最近已添加，可在 iPhone OS 3.2 及更高版本中使用。
您应该使用 MPMoviePlayerController。
MPMoviePlayerViewController has been added recently and is available in iPhone OS 3.2 and later.
You should use MPMoviePlayerController.