在动画之后执行塞格动画，但动画物品恢复到原来的位置

Question

我有这个问题，我已经设置了并且在触摸其中的一个之后他们必须移动，所以我使用动画实现了此功能，并且工作正常。但在动画完成后，我正在执行一个模态赛格，问题在于模态赛格开始时，从底部提高新的UIView，返回到他们以前的位置，在那里我将它们设置在Storyboard中，并且它看起来很糟糕。我怎么解决这个问题？ 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

顶部的代码，你犯了一个布尔值或在您的.h添加属性，如果你喜欢。但我只是使用一个局部变量。

BOOL didAnimate; 

在viewDidLoad中，你将它设置

- (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]; 

} 

用在这里，我也冒昧地重写代码位。

- (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"); 
    } 
} 

我还没有测试过这个，有可能是拼写错误等。所以复制/粘贴可能不起作用。