在其他視圖捕捉動搖行動？

我有一個簡單的應用程序，它由2個視圖組成。頂視圖有一個加速度計代表。當用戶在頂部視圖在屏幕上時抖動。然後調用pushviewcontroller並顯示子視圖。問題是當子視圖出現時，我搖動它，它仍然捕捉搖動動作並導致我出錯。所以幫助我。提前致謝。在其他視圖捕捉動搖行動？

- (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]; 
}

時調用play方法和視頻播放結束後，pushviewcontroller將被調用，副視點會出現

下面

是處理所有movieplayer東西類。

- (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];

}

來源

2012-07-24 Mungunbat Enkhbayar

是進入我的腦海裏是跟蹤如果mMoviePlayer推與否的第一件事。

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; 
}

在moviePlayBackDidFinish方法調用後dismissModalViewControllerAnimated

：是你應該的mPlayerPushed設置爲NO。

或者您可以使用屬性模式視圖控制器來查看是否顯示模態視圖。這我還沒有測試，但它應該工作。

modalViewController：控制器爲活動模態的視圖，也就是說，，其上由接收機管理的視圖的頂部暫時顯示的視圖。（只讀）

@property(nonatomic, readonly) UIViewController *modalViewController

，從而代替布爾mPlayerPushed你將有：

if(shake && something.modalviewController == nil){ present mMoviePlayer }

來源

2012-07-24 06:13:22

的評論好，謝謝。我只是添加了一些代碼。 – 2012-07-24 06:27:02

如果這是真的，你應該測試modalViewController屬性是否等於你的mMoviePlayer，那麼你可以使用它，而不是像我最初的想法那樣聲明一個新變量。第一個解決方案應該按預期工作。 – 2012-07-24 06:42:52

我改變了條件搖&& mMoviePlayer。所以子視圖不會抓住（或者是什麼）搖動動作。但是當子視圖出現緩存顯示在子視圖上。換句話說，我搖動它，然後我再次回到主菜單，然後我再次搖動它，這次子視圖立即向我展示了subivew的早期內容，然後將它改變爲正確的看法。這是什麼意思？ – 2012-07-24 06:45:10

在其他視圖捕捉動搖行動？

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