http://teamtreehouse.com/library/ios-development/build-an-iphone-crystal-ball-app/shaking-things-up/intercepting-motion-events

The first problem is that my debugger is empty (the debugger window thing is jut blank, nothing shows up but the app runs). The app works with button but does not respond to shake. The app runs.

This is my view controller implementation file:

// // ViewController.m // Crystalball // // Created by Kabin Wang on 2013-07-21. // Copyright (c) 2013 Kabin Wang. All rights reserved. //

import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController @synthesize predictionLabel; @synthesize predictionArray;

• (void)viewDidLoad { [super viewDidLoad]; UIImage *image = [UIImage imageNamed:@"background.png"]; UIImageView *imageView = [[UIImageView alloc] initWithImage:image]; [self.view insertSubview:imageView atIndex:0];

  self.predictionArray = [[NSArray alloc] initWithObjects:@"It is decidedily so",@"hell naw",@"foshizza ma nizza",@"yuuup",nil];

  // Do any additional setup after loading the view, typically from a nib. }

• (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. }

• (IBAction)buttonPressed:(UIButton *)sender { NSUInteger index= arc4random_uniform(self.predictionArray.count); self.predictionLabel.text=[self.predictionArray objectAtIndex:index]; }

• (BOOL)canbecomeFirstResponder { return YES; }

• (void) motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event { self.predictionLabel.text = @"";

}

• (void) motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event { if ( motion == UIEventSubtypeMotionShake){ NSUInteger index= arc4random_uniform(self.predictionArray.count); self.predictionLabel.text=[self.predictionArray objectAtIndex:index]; } }

• (void) motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event { NSLog(@"motion cancelled");

} @end