ios7自带的晃动效果

ios7自带的晃动效果

- (void)registerEffectForView:(UIView *)aView depth:(CGFloat)depth;
{
UIInterpolatingMotionEffect *effectX;
UIInterpolatingMotionEffect *effectY;
effectX = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.x"
type:UIInterpolatingMotionEffectTypeTiltAlongHorizontalAxis];
effectY = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.y"
type:UIInterpolatingMotionEffectTypeTiltAlongVerticalAxis];

effectX.maximumRelativeValue = @(depth);
effectX.minimumRelativeValue = @(-depth);
effectY.maximumRelativeValue = @(depth);
effectY.minimumRelativeValue = @(-depth);

[aView addMotionEffect:effectX];
[aView addMotionEffect:effectY];
}