ios7自带的晃动效果

by 伍雪颖

- (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];

}