使用下面的代碼,sublayer1 & sublayer2被繪製在需要的地方。當動畫發生時,子圖層1按預期方式移動,而子圖層2首先向左上移然後向右下移。 (2不在1之內的同一地方)什麼是阻止子層與父母一起移動?
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
// Create a blue sublayer
sublayer1 = [CALayer layer];
sublayer1.backgroundColor = [[UIColor blueColor] CGColor];
sublayer1.frame = CGRectMake(30, 30, 120, 190);
sublayer1.position = CGPointMake(90, 130);
[self.view.layer addSublayer:sublayer1];
// Create a sublayer within blue layer
CALayer *sublayer2 = [CALayer layer];
sublayer2.bounds = CGRectMake(0, 0, 60, 60);
sublayer2.frame = CGRectMake(30, 50, 60, 60);
sublayer2.contents = (id)[[UIImage imageNamed:@"sun.png"] CGImage];
[sublayer1 addSublayer:sublayer2];
[self performSelector:@selector(moveBlueLayer) withObject:nil afterDelay:1.0];
}
- (void)moveBlueLayer
{
// Create a new position for animation to move to
CGPoint endPostition = CGPointMake(190, 285);
[CATransaction setAnimationDuration:4];
sublayer1.bounds = CGRectMake(130, 190, 120, 190);
sublayer1.position = endPostition;
}
它們不是應該一起移動嗎?任何想法,爲什麼他們不?我正試圖堅持現在對「隱式」動畫的解決方案。
罪魁禍首是在底部的第三行。 'sublayer1.bounds'不應該被設置。 – David