Movie player has wrong activation state (1)

问题

Hi! I am capturing the thumbnail image of video from video url. And I am using following code to capture the thumbnail

MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc]initWithContentURL:movieURL];
[moviePlayer setControlStyle:MPMovieControlStyleFullscreen];
[moviePlayer setFullscreen:YES];
moviePlayer.useApplicationAudioSession = NO;
UIImage *image = [moviePlayer  thumbnailImageAtTime:(NSTimeInterval)1.0 timeOption: MPMovieTimeOptionNearestKeyFrame];

I am using threading for this. I am getting the following error:

Movie player has wrong activation state (1)

Can anybody help me?

回答1:

When you are initing the movie player, you already have one. There can be only one MPMoviePlayerController. You are probably doing this in a loop. You need to set your last one to nil or keep reusing the same one over and over.

来源：https://stackoverflow.com/questions/11202777/movie-player-has-wrong-activation-state-1