顯示視圖時如何開始動畫？

Question

當我啟動應用程序並從mainViewController轉到flipSideViewController時，flipSideViewController中的圖像視圖將進行動畫處理。 我想每一個從mainViewController用戶轉換到flipSideViewController時間來制作動畫。

這是一些代碼：

[self animate];
//Not sure where to put this instance method. Would I put this in a certain method? I have no idea what I would write for it!

- (void)animate 
{
    CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
    animation.toValue = [NSNumber numberWithFloat:((-10*M_2_PI)/180)];
    animation.duration = .3;
    animation.autoreverses = YES;
    animation.repeatCount = 4;
    animation.speed = 9;
    pwAnimation.removedOnCompletion = YES;
    [_ImageView.layer addAnimation:pwAnimation forKey:@"rotation"];
}

Answer 1

使用flipSideViewController的ViewDidAppear委托方法來調用-animate方法