旋转：
CABasicAnimation *tAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
//默认是顺时针效果，若将fromValue和toValue的值互换，则为逆时针效果
tAnimation.fromValue = [NSNumber numberWithFloat:0.f];
tAnimation.toValue = [NSNumber numberWithFloat: M_PI *2];
//旋转速度，数字越大旋转越慢
tAnimation.duration = 10;
tAnimation.autoreverses = NO;
tAnimation.fillMode =kCAFillModeForwards;
tAnimation.repeatCount = MAXFLOAT; //如果这里想设置成一直自旋转，可以设置为MAXFLOAT，否则设置具体的数值则代表执行多少次
[self.flowerView.layer addAnimation:tAnimation forKey:nil];
平移，有两种方法，1是用定时器和animateWithDuration,2是用CABasicAnimation
1，
HomeViewController.m
self.cloudsTimer = [NSTimer scheduledTimerWithTimeInterval:5 target:self selector:@selector(moveCloudsAnimation) userInfo:nil repeats:YES];
- (void)moveCloudsAnimation {
[self.cloudsView moveSelfView];
}
CloudsView.m
- (void)moveSelfView {
CGPoint point = self.center;
self.center = CGPointMake(-self.frame.size.width*0.5,point.y);
[UIView animateWithDuration:5 animations:^{
self.center = CGPointMake(Screen_Width+self.frame.size.width/2, point.y);
}];
}
2.和旋转一样，将key换成position即可
HomeViewController.m
CABasicAnimation *pAnimation = [CABasicAnimation animationWithKeyPath:@"position"];
//默认是顺时针效果，若将fromValue和toValue的值互换，则为逆时针效果
pAnimation.fromValue = [NSValue valueWithCGPoint:CGPointMake(-Screen_Width/2, CGRectGetMidY(self.cloudsView.frame))];
pAnimation.toValue = [NSValue valueWithCGPoint:CGPointMake(Screen_Width*1.5, CGRectGetMidY(self.cloudsView.frame))];
//旋转速度，数字越大旋转越慢
pAnimation.duration = 20;
pAnimation.autoreverses = NO;
pAnimation.fillMode =kCAFillModeForwards;
pAnimation.repeatCount = MAXFLOAT; //如果这里想设置成一直自旋转，可以设置为MAXFLOAT，否则设置具体的数值则代表执行多少次
[self.cloudsView.layer addAnimation:pAnimation forKey:nil];
