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我分离屏幕分成小块,那么动画每个瓦片执行过渡:多CALayers动画 - 填充模式
for (int x=0; x<number_of_x_splits; x++) {
for (int y=0; y<number_of_y_splits; y++) {
CGSize splitSize = CGSizeMake(screenBounds.width/number_of_x_splits, screenBounds.height/number_of_y_splits);
CATransformLayer *transformLayer = [CATransformLayer layer];
[transformLayer setFrame:CGRectMake(splitSize.width * x, splitSize.height * y, splitSize.width, splitSize.height)];
[transformLayer setPosition:CGPointMake((splitSize.width * x) + splitSize.width/2, (splitSize.height * y) + splitSize.height/2)];
... adding some sublayers to transformLayer...
CABasicAnimation *rotate = [CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];
[rotate setDuration:5.0];
[rotate setFromValue:[NSNumber numberWithFloat:0]];
[rotate setToValue:[NSNumber numberWithFloat:M_PI]];
[rotate setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
[rotate setTimeOffset:(1/(number_of_x_splits + number_of_y_splits)) * (x+y)];
[rotate setFillMode:kCAFillModeForwards];
[rotate setRemovedOnCompletion:NO];
[transformLayer addAnimation:rotate forKey:@"transform.rotation.y"];
}
}
的问题是,只有最后的CALayer链保持在最终位置。 我也曾尝试设置CALayer的最终转换值:
[transformLayer setTransform:CATransform3DMakeRotation(M_PI, 0, 1, 0)];
我想这有创造循环的CALayer的另一个实例重置以前层的性质有关。
任何人有一个建议如何弥补这种情况?
确实!!解决它。从现在开始没有TimeOffset!非常感谢! – Nimrod7 2012-07-24 07:15:13
beginTime应该是CACurrentMediaTime()+ yourDelay,除非动画是动画组的一部分。在这种情况下,它从基本时间值开始使用0,从父动画组的开始处开始。 – 2013-02-28 22:12:56
@DuncanC很好的一点。 – 2013-03-01 07:24:13