Add device tilting support to your UIView to get an effect similar to native UIAlertView

UIView+BMXMotionEffect

#import <UIKit/UIKit.h>

@interface UIView (BMXMotionEffect)

- (void)BMX_addTwoDimensionMotionEffectWithDepth:(CGFloat)depth;

@end


#import "UIView+BMXMotionEffect.h"

@implementation UIView (BMXMotionEffect)

- (void)BMX_addTwoDimensionMotionEffectWithDepth:(CGFloat)depth
{
    UIInterpolatingMotionEffect *effectX = [[UIInterpolatingMotionEffect alloc] initWithKeyPath: @"center.x" type: UIInterpolatingMotionEffectTypeTiltAlongHorizontalAxis];
    effectX.minimumRelativeValue = @(-depth);
    effectX.maximumRelativeValue = @(depth);
    
    UIInterpolatingMotionEffect *effectY = [[UIInterpolatingMotionEffect alloc] initWithKeyPath: @"center.y" type: UIInterpolatingMotionEffectTypeTiltAlongVerticalAxis];
    effectY.minimumRelativeValue = @(-depth);
    effectY.maximumRelativeValue = @(depth);
    
    [self addMotionEffect: effectX];
    [self addMotionEffect: effectY];
}

@end