在動畫之後執行塞格動畫，但動畫物品恢復到原來的位置

Question

我有這個問題，我已經設置了並且在觸摸其中的一個之後他們必須移動，所以我使用動畫實現了此功能，並且工作正常。但在動畫完成後，我正在執行一個模態賽格，問題在於模態賽格開始時，從底部提高新的UIView，返回到他們以前的位置，在那裏我將它們設置在Storyboard中，並且它看起來很糟糕。我怎麼解決這個問題？ 下面是我使用

@property (strong, nonatomic) IBOutlet UIButton *maleBtn; 
@property (strong, nonatomic) IBOutlet UIButton *femaleBtn; 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    [_maleBtn addTarget:self 
       action:@selector(chooseGender:) 
     forControlEvents:UIControlEventTouchUpInside]; 
    [_femaleBtn addTarget:self 
        action:@selector(chooseGender:) 
     forControlEvents:UIControlEventTouchUpInside]; 

} 

- (IBAction)chooseGender:(id)sender 
{ 
    CGRect maleFrame; 
    CGRect femaleFrame; 

    if (sender == _maleBtn) { 
     maleFrame = self.maleBtn.frame; 
     maleFrame.origin.x = (self.view.bounds.size.width/2) - 15; 

     femaleFrame = self.femaleBtn.frame; 
     femaleFrame.origin.x = self.view.bounds.size.height; 
    } 
    else { 
     maleFrame = self.maleBtn.frame; 
     maleFrame.origin.x = -self.view.bounds.size.height; 

     femaleFrame = self.femaleBtn.frame; 
     femaleFrame.origin.x = (self.view.bounds.size.width/2) - 15; 

    } 

    [UIView animateWithDuration:0.5 
          delay:0.5 
         options:UIViewAnimationCurveEaseOut 
        animations:^{ 
         _maleBtn.frame = maleFrame; 
         _femaleBtn.frame = femaleFrame; 
        } 
        completion:^(BOOL finished){ 
         if(sender == _maleBtn) 
          [self performSegueWithIdentifier:@"toMale" sender:self]; 
         else 
          [self performSegueWithIdentifier:@"toFemale" sender:self]; 
        }]; 
} 

Answer 1

頂部的代碼，你犯了一個布爾值或在您的.h添加屬性，如果你喜歡。但我只是使用一個局部變量。

BOOL didAnimate; 

在viewDidLoad中，你將它設置

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    //Set the bool value here to no; 
    didAnimate = NO; 

    [_maleBtn addTarget:self 
       action:@selector(chooseGender:) 
     forControlEvents:UIControlEventTouchUpInside]; 
    [_femaleBtn addTarget:self 
        action:@selector(chooseGender:) 
     forControlEvents:UIControlEventTouchUpInside]; 

} 

用在這裏，我也冒昧地重寫代碼位。

- (IBAction)chooseGender:(id)sender 
{ 
    CGRect maleFrame; 
    CGRect femaleFrame; 

    if (sender == _maleBtn) { 
     maleFrame = self.maleBtn.frame; 
     maleFrame.origin.x = (self.view.bounds.size.width/2) - 15; 

     femaleFrame = self.femaleBtn.frame; 
     femaleFrame.origin.x = self.view.bounds.size.height; 
    } 
    else { 
     maleFrame = self.maleBtn.frame; 
     maleFrame.origin.x = -self.view.bounds.size.height; 

     femaleFrame = self.femaleBtn.frame; 
     femaleFrame.origin.x = (self.view.bounds.size.width/2) - 15; 

    } 

    [UIView animateWithDuration:0.5 
          delay:0.5 
         options:UIViewAnimationCurveEaseOut 
        animations:^{ 
         _maleBtn.frame = maleFrame; 
         _femaleBtn.frame = femaleFrame; 
        } 
        completion:^(BOOL finished){ 
        didAnimate = YES; 
        }]; 

    if(sender == _maleBtn && didAnimate){ 
      [self performSegueWithIdentifier:@"toMale" sender:self]; 
    } 
    else if((sender == _femaleBtn && didAnimate)){ 
      [self performSegueWithIdentifier:@"toFemale" sender:self]; 
    } 
    else{ 
    NSLog(@"failure to transition"); 
    } 
} 

我還沒有測試過這個，有可能是拼寫錯誤等。所以複製/粘貼可能不起作用。