ios - 按比例缩小时，视图会像素化

Question

我有一个由两个UIImageViews组成的UIView。它们是同心圆形状。当我像这样缩放此视图时：

CABasicAnimation *resizeAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
    resizeAnimation.fromValue = [NSNumber numberWithDouble:1.0];
    resizeAnimation.toValue = [NSNumber numberWithDouble:0.25];
    resizeAnimation.fillMode = kCAFillModeForwards;
    resizeAnimation.removedOnCompletion = NO;

缩小时，图像的边缘变得粗糙并且像素化。我有什么办法可以防止这种情况或至少减少它吗？

Answer 1

尝试将图片视图的图层minificationFilter设置为kCAFilterNearest或kCAFilterTrilinear