如何處理超類UIViewController子類中的方法

Question

我正在創建一個名爲myapp的基於UIView的應用程序。

我正在添加一個名爲mysubclass的myapp的UIViewController子類。

在mysubclass我正在動畫一些圖像。我在mysubclass代碼如下所示：

-(void) onTimer { 


    balloon.center = CGPointMake(balloon.center.x,balloon.center.y+pos.y); 
    balloon1.center = CGPointMake(balloon1.center.x,balloon1.center.y+pos1.y); 
    balloon2.center = CGPointMake(balloon2.center.x,balloon2.center.y+pos2.y); 
    balloon3.center = CGPointMake(balloon3.center.x,balloon3.center.y+pos3.y); 
    balloon4.center = CGPointMake(balloon4.center.x,balloon4.center.y+pos4.y); 
    balloon5.center = CGPointMake(balloon5.center.x,balloon5.center.y+pos5.y); 

     if(balloon.center.y > 420 || balloon.center.y < 25) 
     pos.y = -pos.y; 


    if(balloon1.center.y > 420 || balloon1.center.y < 25) 
     pos1.y = -pos1.y; 


    if(balloon2.center.y > 420 || balloon2.center.y < 25) 
     pos2.y = -pos2.y; 

    if(balloon3.center.y > 420 || balloon3.center.y < 25) 
     pos3.y = -pos3.y; 


    if(balloon4.center.y > 420 || balloon4.center.y < 25) 
     pos4.y = -pos4.y; 


    if(balloon5.center.y > 420 || balloon5.center.y < 25) 
     pos5.y = -pos5.y; 

} 

我調用此方法是這樣的：以同樣的方式，我需要扭轉在pos.y = 320.my代碼的位置

是這個樣子。

-(void) onTimer1 { 


     balloon.center = CGPointMake(balloon.center.x,balloon.center.y+pos.y); 
     balloon1.center = CGPointMake(balloon1.center.x,balloon1.center.y+pos1.y); 
     balloon2.center = CGPointMake(balloon2.center.x,balloon2.center.y+pos2.y); 
     balloon3.center = CGPointMake(balloon3.center.x,balloon3.center.y+pos3.y); 
     balloon4.center = CGPointMake(balloon4.center.x,balloon4.center.y+pos4.y); 
     balloon5.center = CGPointMake(balloon5.center.x,balloon5.center.y+pos5.y); 

      if(balloon.center.y > 320 || balloon.center.y < 25) 
      pos.y = -pos.y; 


     if(balloon1.center.y > 320 || balloon1.center.y < 25) 
      pos1.y = -pos1.y; 


     if(balloon2.center.y > 320 || balloon2.center.y < 25) 
      pos2.y = -pos2.y; 

     if(balloon3.center.y > 420 || balloon3.center.y < 25) 
      pos3.y = -pos3.y; 


     if(balloon4.center.y > 320 || balloon4.center.y < 25) 
      pos4.y = -pos4.y; 


     if(balloon5.center.y > 320 || balloon5.center.y < 25) 
      pos5.y = -pos5.y; 

    } 




    - (void)willAnimateSecondHalfOfRotationFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation duration:(NSTimeInterval)duration { 
UIInterfaceOrientation toorientation = self.interfaceOrientation; 
    if ((toorientation == UIInterfaceOrientationPortrait) || (toorientation == UIInterfaceOrientationPortraitUpsideDown)) { 
    timer = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(onTimer) userInfo:nil repeats:YES]; 
else{ 
timer = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(onTimer1) userInfo:nil repeats:YES]; 
} 
} 

，但它不工作，可能是這個原因是我們不能以subviewcontroller類來處理這個問題，如果是我該如何處理這從超類。

如果我的猜測是錯誤的，任何人都可以請建議什麼是錯的。

謝謝你提前。

Answer 1

你實施了shouldAutorotateToInterfaceOrientation嗎？

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    return YES; 
} 

通過可以簡化代碼位辦法只有一個「的OnTimer」使用self.view.bounds.size.height或類似的，而不是硬編碼值420和320的方法