iPhone 动画选项
我正在使用以下动画移动 UIImageView：
[UIView animateWithDuration:.5 delay:0 options:(UIViewAnimationCurveLinear | UIViewAnimationOptionAllowUserInteraction)
animations:^{
myImage.frame = CGRectOffset(myImage.frame, myImageOffset.x, myImageOffset.y);
}
completion:^(BOOL finished){
}
];
问题是图像开始移动缓慢，然后在结束动画之前加速并再次减速。 UIViewAnimationCurveLinear 选项不是应该使动画以恒定速率执行吗？
I am moving a UIImageView with the following animation:
[UIView animateWithDuration:.5 delay:0 options:(UIViewAnimationCurveLinear | UIViewAnimationOptionAllowUserInteraction)
animations:^{
myImage.frame = CGRectOffset(myImage.frame, myImageOffset.x, myImageOffset.y);
}
completion:^(BOOL finished){
}
];
The problem is the image starts moving slow, then speeds up and slows down again before ending the animation. Isn't the UIViewAnimationCurveLinear option supposed to make the animation perform at a constant rate?
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尝试使用此选项 -
UIViewAnimationOptionCurveLinear。我在另一个网站上查看这个问题时发现了它 - http://www.iphonedevsdk.com/forum/iphone-sdk-development/89009-block-animation-ignores-uiviewanimationcurvelinear.htmlTry using this option instead -
UIViewAnimationOptionCurveLinear. I found it while looking at this question on another site - http://www.iphonedevsdk.com/forum/iphone-sdk-development/89009-block-animation-ignores-uiviewanimationcurvelinear.html