shake action catched in other views? - iphone

Question

I have a simple app which consists of 2 views. Top view has a accelerometer delegates. when user shakes while top view is on the screen. then pushviewcontroller is called and subview will appear. the problem is when subview is appeard, i shake it, it still catches the shake action and results me an error. So help me. thanks in advance.
- (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration {
const float violence = 1.2;
static BOOL beenhere;
BOOL shake = FALSE;
if (beenhere) return;
beenhere = TRUE;
if (acceleration.x > violence || acceleration.x < (-1* violence))
shake = TRUE;
if (acceleration.y > violence || acceleration.y < (-1* violence))
shake = TRUE;
if (acceleration.z > violence || acceleration.z < (-1* violence))
shake = TRUE;
if (shake) {
[self playSound:#"suzu"];
if ([[NSUserDefaults standardUserDefaults] boolForKey:#"noVib"] == NO) {
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
[[UIAccelerometer sharedAccelerometer] setDelegate:nil];
[self presentModalViewController:mMoviePlayer animated:YES];
[self play];
}
when play method called and video has finished, pushviewcontroller will be called and the sub view will appear
below is a class that handles all the movieplayer stuff.
- (void) initPlayer{
if (mMoviePlayer != nil){
[mMoviePlayer release];
}
mMoviePlayer = [[MoviePlayerViewController alloc] initWithContentURL:[self createURL]];
[[NSNotificationCenter defaultCenter] removeObserver:mMoviePlayer
name:MPMoviePlayerPlaybackDidFinishNotification object:mMoviePlayer.moviePlayer];
[mMoviePlayer.moviePlayer setShouldAutoplay:NO];
mMoviePlayer.moviePlayer.backgroundView.backgroundColor = [UIColor blackColor];
mMoviePlayer.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
mMoviePlayer.moviePlayer.controlStyle = MPMovieControlStyleNone;
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(moviePlayBackDidFinish:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:mMoviePlayer.moviePlayer];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(moviePreloadDidFinish:)
name:MPMoviePlayerLoadStateDidChangeNotification
object:mMoviePlayer.moviePlayer];
- (void) moviePlayBackDidFinish:(NSNotification*)notification
{
[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:NO];
[[NSNotificationCenter defaultCenter] removeObserver:self
name:MPMoviePlayerPlaybackDidFinishNotification
object:mMoviePlayer.moviePlayer];
[self dismissModalViewControllerAnimated:YES];
[mMoviePlayer release];
mMoviePlayer = nil;
[self toNext];
}

Answer 1

The first thing that comes into my mind is to keep track if the mMoviePlayer is pushed or not.
if (shake && mPlayerPushed) {
[self playSound:#"suzu"];
if ([[NSUserDefaults standardUserDefaults] boolForKey:#"noVib"] == NO) {
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
[[UIAccelerometer sharedAccelerometer] setDelegate:nil];
[self presentModalViewController:mMoviePlayer animated:YES];
[self play];
mPlayerPushed = YES;
}
in the moviePlayBackDidFinish method after you call dismissModalViewControllerAnimated:YES you should set the mPlayerPushed to NO.
or you could use the property modal view controller to see if a modal view is displayed. This i haven't tested yet but it should work.
modalViewController: The controller for the active modal view—that is,
the view that is temporarily displayed on top of the view managed by
the receiver. (read-only)
#property(nonatomic, readonly) UIViewController *modalViewController
so instead of the bool mPlayerPushed you will have:
if(shake && something.modalviewController == nil){ present mMoviePlayer }