问题描述
我正在使用CAKeyFrameAnimation来旋转箭头图像。
I am using CAKeyFrameAnimation to do rotation of an arrow image.
问题是动画后imageview返回到previos状态。
Problem is that the imageview is returning back to the previos state after animation.
代码：
CAKeyframeAnimation * rotation = [CAKeyframeAnimation animation];
rotation.duration = 0.55;
rotation.cumulative = TRUE;
rotation.removedOnCompletion =否；
if（isFlipRight）{
rotation.values = [NSArray arrayWithObjects：
[NSValue valueWithCATransform3D：CATransform3DMakeRotation（0.0，0.0f，1.0f，0.0f）]]，
[NSValue valueWithCATransform3D：CATransform3DMakeRotation（M_PI，0.0f，1.0f，0.0f）]，nil];
CAKeyframeAnimation *rotation = [CAKeyframeAnimation animation];rotation.duration = 0.55; rotation.cumulative = TRUE; rotation.removedOnCompletion = NO; if (isFlipRight) { rotation.values = [NSArray arrayWithObjects: [NSValue valueWithCATransform3D:CATransform3DMakeRotation(0.0, 0.0f, 1.0f, 0.0f)], [NSValue valueWithCATransform3D:CATransform3DMakeRotation(M_PI, 0.0f, 1.0f, 0.0f)],nil];
}
else {
rotation.values = [NSArray arrayWithObjects：
[NSValue valueWithCATransform3D：CATransform3DMakeRotation（M_PI，0.0f，1.0f，0.0f）]，
[NSValue valueWithCATransform3D：CATransform3DMakeRotation（0.0，0.0f，1.0f，0.0f）]， nil];
} else { rotation.values = [NSArray arrayWithObjects: [NSValue valueWithCATransform3D:CATransform3DMakeRotation(M_PI, 0.0f, 1.0f, 0.0f)], [NSValue valueWithCATransform3D:CATransform3DMakeRotation(0.0, 0.0f, 1.0f, 0.0f)],nil];
}
[[arrowImageView layer] addAnimation：rotation forKey：@ transform];
[[arrowImageView layer] addAnimation:rotation forKey:@"transform"];
推荐答案
在调用addAnimation之前添加此行。.
Add this line before calling addAnimation..
rotation.fillMode = kCAFillModeForwards;
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