zapsleep

- (void)updateMotionData {
    //1
    CMAcceleration acceleration = self.motionManager.deviceMotion.userAcceleration;
    self.accelerationXVal.text = [NSString stringWithFormat:@"%.3f", acceleration.x];
    self.accelerationYVal.text = [NSString stringWithFormat:@"%.3f", acceleration.y];
    self.accelerationZVal.text = [NSString stringWithFormat:@"%.3f", acceleration.z];
    //

    //2
    CMAcceleration gravity = self.motionManager.deviceMotion.gravity;

zapsleep

#import "DVViewController.h"
#import <CoreMotion/CoreMotion.h>

#define kCMDeviceMotionUpdateFrequency (1.f/30.f)

@interface DVViewController ()
@property (weak, nonatomic) IBOutlet UILabel *accelerationXVal;
@property (weak, nonatomic) IBOutlet UILabel *accelerationYVal;
@property (weak, nonatomic) IBOutlet UILabel *accelerationZVal;

zapsleep

DVPlaylistPlayer *player = [[DVPlaylistPlayer alloc] init];
[self.view addSubview:player.playerView];
player.delegate = someDelegate;
player.dataSource = someDataSource;

[player playMediaAtIndex:0];

zapsleep

- (UIImage *)blurryImage:(UIImage *)image 
           withBlurLevel:(CGFloat)blur {
    CIImage *inputImage = [CIImage imageWithCGImage:image.CGImage];
    CIFilter *filter = [CIFilter filterWithName:@"CIGaussianBlur"
                         keysAndValues:kCIInputImageKey, inputImage,
                                       @"inputRadius", @(blur), 
                                       nil];
    
    CIImage *outputImage = filter.outputImage;
    

zapsleep

- (UIImage *)blurryGPUImage:(UIImage *)image 
              withBlurLevel:(NSInteger)blur {
    GPUImageFastBlurFilter *blurFilter = 
                        [[GPUImageFastBlurFilter alloc] init];
    blurFilter.blurSize = blur;
    UIImage *result = [blurFilter imageByFilteringImage:image];
    return result;
}

zapsleep

- (UIImage *)blurryImage:(UIImage *)image withBlurLevel:(CGFloat)blur {
    if (blur < 0.f || blur > 1.f) {
        blur = 0.5f;
    }
    int boxSize = (int)(blur * 100);
    boxSize = boxSize - (boxSize % 2) + 1;
    
    CGImageRef img = image.CGImage;
    
    vImage_Buffer inBuffer, outBuffer;

zapsleep

//setting notifiers
- (void)setupScreenConnectionNotificationHandlers {
    NSNotificationCenter* center = [NSNotificationCenter 
                                      defaultCenter];
 
    [center addObserver:self selector:@selector(
                                handleScreenConnect:)
            name:UIScreenDidConnectNotification object:nil];
    [center addObserver:self selector:@selector(
                                handleScreenDisconnect:)

zapsleep

for (UIScreen *screen in [UIScreen screens]) 
{
    if ([screen respondsToSelector:@selector(mirroredScreen)] && 
        [screen mirroredScreen] == [UIScreen mainScreen]) 
    {
        // The main screen is being mirrored.
    }
    else 
    {
        // The main screen is not being mirrored, or

zapsleep

//setting the observer
-(void)observeAirPlayFromView:(MPVolumeView *)voluemView {
  for (UIButton *button in volumeView.subviews) {
      if([button isKindOfClass:[UIButton class]]) {
          [button addObserver:self 
                   forKeyPath:@"alpha" 
                      options:NSKeyValueObservingOptionNew 
                      context:nil];
      }
  }

zapsleep

- (UIButton *)getButtonFromVolumeView:(MPVolumeView *)volumeView {
  UIButton *button;
  for (button in volumeView.subviews) {
    if ([button isKindOfClass:[UIButton class]]) {
      break;
    }
  return button;
}