嗨,我从多个图像创建一个关键帧动画。我的问题是我想动画立即从一个图像更改为下一个,而不是褪色。CAKeyframeAnimation
CALayer *animLayer = [CALayer layer];
animLayer.bounds = CGRectMake(0, 0, width, height);
animLayer.position = CGPointMake(0, 0);
CAKeyframeAnimation *customFrameAnimation = [CAKeyframeAnimation animationWithKeyPath:@"contents"];
NSArray *sizeValues = [NSArray arrayWithObjects:(id)image1, (id)image2, nil];
NSArray *times = [NSArray arrayWithObjects:[NSNumber numberWithFloat:0.0f], [NSNumber numberWithFloat:0.5f], nil];
NSArray *timingFunctions = [NSArray arrayWithObjects: [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault], [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault], nil];
[customFrameAnimation setValues:sizeValues];
[customFrameAnimation setKeyTimes:times];
customFrameAnimation.duration=5.0;
customFrameAnimation.beginTime = 1e-100;
customFrameAnimation.fillMode = kCAFillModeRemoved;
customFrameAnimation.timingFunctions = timingFunctions;
customFrameAnimation.removedOnCompletion = YES;
[animLayer addAnimation:customFrameAnimation forKey:nil];
在此先感谢。
谢谢,感谢帮助。我喜欢这个论坛! – user346443 2010-10-30 04:18:09