1. Open your existing Web View app.

2. In the file view on the left, click on the MainStoryboard_iPhone.storyboard file:

3. Make sure at the top left of the screen your Editor and View buttons look like this:

4. At the top of the right properties sidebar, make sure the little shield is selected:

5. At the bottom of the right properties bar, scroll up or down until you see the Label object:

6. Drag the Label object onto the the Web View in the Editor screen:

7. Resize the Label you just dragged in to the desired size. You’ll notice I filled the whole screen:

8. In the properties sidebar, change the Color, Font, and Alignment to the following:

9. Near the bottom of the properties sidebar, change the Alpha, Background and Hidden to the following:

10. Double click the Label in the Editor window and change the text to “Loading…”:

11. On the top right of the screen, set your Editor and View buttons to look like this:

You should now see both your MainStoryboard_iPhone.storyboard editor and your ViewController.h editor:

12. While holding down the “control” button, drag the Label from your Storyboard to just underneath your viewWeb @property:

13. Name this Outlet labelLoading and click Connect:

You’ll notice that a new @property line is automatically created.

NOTE: If you also have an iPad Storyboard, repeat steps 2 through 11 for the that storyboard. However, for step 12, you’ll want to drag the label to the existing labelLoading @property line.

14. Change you Editor and View buttons to the following:

15. In the file sidebar to the left, click on ViewController.h:

16. Add the following piece code to the end of the @interface line:

<UIWebViewDelegate>

This gives us more access the the web view.

17. In the file sidebar, click on ViewController.m:

18. Make sure the following line is near the top under the existing viewWeb @synthesize line (it may be there already):

@synthesize labelLoading;

19. Inside the viewDidLoad method add the following line to the top:

[viewWeb setDelegate:self];

This is needed for the code in the next step to work.

20. Add the following 2 methods under the viewDidLoad method:

- (void)webViewDidStartLoad:(UIWebView *)webView {
    [labelLoading setHidden:NO];
}
 
- (void)webViewDidFinishLoad:(UIWebView *)webView {
    [labelLoading setHidden:YES];
}

The first method runs as soon as the page starts loading (making the label visible). The second runs when the page is done (hiding the label).

You are now ready to run the app!

1. Open the App Store app on your iPhone.
2. Tap the Updates button on the tab bar at the bottom of the screen.
3. Tap the “Purchased” row at the top of the table.
4. Scroll down to find the app you want to rate.  For example Solitaire Poker.
5. Scroll down and tap the Ratings button.  It might be labeled “No Ratings” or “155 Ratings” or something similar.
6. Finally, tap “Write a Review”

First, in your viewDidLoad method add:

// Proximity Sensor Notification
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(proximityChanged:) name:@"UIDeviceProximityStateDidChangeNotification" object:device];

This will create an observer that checks for a change in proximity.

Second, add the following code to the method that will be playing the audio:

UIDevice *device = [UIDevice currentDevice];
        device.proximityMonitoringEnabled = YES;

This will enable the proximity monitoring.

Third, add the following method:

- (void)proximityChanged:(NSNotification *)notification {
	UIDevice *device = [notification object];
    if (device.proximityState == 1) {
        [audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
    } else {
        [audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];
    }
}

This checks the proximity state and then redirects the audio in real time to the correct output hardware.

It’s also a good idea to disable proximity monitoring when audio is no longer being played. In your manual stopAudio method or IF statement and in the delegate audioPlayerDidFinishPlaying method, add the follow code:

UIDevice *device = [UIDevice currentDevice];
    device.proximityMonitoringEnabled = NO;

So before we do any code, we want to add the AVFoundation and AudioToolbox frameworks. Also copy the audio file you’d like to play into your project.

Now let’s code.

This is basically what your .h file should look like:

#import
#import 
 
@interface ViewController : UIViewController  {
    AVAudioPlayer *audioPlayer;
    AVAudioSession *audioSession;
}
 
@property (strong, nonatomic) IBOutlet UIButton *buttonControl;
 
- (IBAction)playAudio:(UIButton *)button;
 
@end

Now to the .m file. Add this to the viewDidLoad method:

    audioSession = [AVAudioSession sharedInstance];
    NSError *error;
    // This will send the audio to the speaker. If you just want the audio to go to the headset, change the Category to AVAudioSessionCategoryPlayAndRecord
    [audioSession setCategory:AVAudioSessionCategoryPlayback error:&error];
	[audioSession setActive:YES error:&error];
 
    NSString *path = [[NSBundle mainBundle] pathForResource:@"myAudio" ofType:@"mp3"];
    audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];
    audioPlayer.delegate = self;
    [audioPlayer prepareToPlay];

Next, add the following 2 methods:

- (IBAction)playAudio:(UIButton *)button {
    if ([button.titleLabel.text isEqualToString:@"Play"]) {
        [button setTitle:@"Stop" forState:UIControlStateNormal];
        [audioPlayer play];
    } else {
        [button setTitle:@"Play" forState:UIControlStateNormal];
        [audioPlayer stop];
 
        // This will reset the audio back to the beginning. Not doing this will just pause the audio.
        audioPlayer.currentTime = 0;
    }
}
 
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag {
    [buttonControl setTitle:@"Play" forState:UIControlStateNormal];
}

Finally, in the xib file create your button and link it to buttonControl and the playAudio method.

First we add this to the .H file:

#define kButtonColumns 4
#define kButtonRows 4
 
@interface GameViewController {
    UIButton *buttons[kButtonColumns][kButtonRows];    
}

This you put this into you .M file:

- (void)placeTiles
{
    NSInteger intTagNumber  = 0;
    NSInteger intLeftMargin = 11; // horizontal offset from the edge of the screen
    NSInteger intTopMargin  = 58; // vertical offset from the edge of the screen
    NSInteger intXSpacing   = 78; // number of pixels between the button origins (horizontally)
    NSInteger intYSpacing   = 77; // number of pixels between the button origins (vertically)
    NSInteger intXTile;
    NSInteger intYTile;
 
    for (int y = 0; y < kButtonRows; y++)
    {
        for (int x = 0; x < kButtonColumns; x++)
        {
 
            intXTile = (x * intXSpacing) + intLeftMargin;
            intYTile = (y * intYSpacing) + intTopMargin;
 
            // create a value button, text, or image
            buttons[x][y] = [[UIButton alloc] initWithFrame:CGRectMake(intXTile, intYTile, 58, 58)];
            [buttons[x][y] setBackgroundImage:[UIImage imageNamed:@"spinTile01"] forState:UIControlStateNormal];
            [buttons[x][y] addTarget:self action:@selector(actionPick:) forControlEvents:UIControlEventTouchDown];
            [buttons[x][y] setTitleColor:[UIColor colorWithRed:0/255.0 green:0/255.0 blue:92/255.0 alpha:1] forState:UIControlStateNormal];
            buttons[x][y].titleLabel.font = [UIFont fontWithName:@"TrebuchetMS-Bold" size:42];
            buttons[x][y].adjustsImageWhenHighlighted = NO;
            buttons[x][y].adjustsImageWhenDisabled = NO;
            buttons[x][y].tag = intTagNumber;
            [self.view addSubview:buttons[x][y]];
 
            intTagNumber++;
        }
    }
}
 
- (IBAction)actionPick:(id)sender 
{
    UIButton *button = (UIButton *)sender;    
    NSLog(@"Button tag: %i", button.tag);
}

Then in your viewDidLoad just run the placeTiles method:

[self placeTiles];

1. Click on the Target
2. Click on Build Phases
3. Open the Compile Sources section
4. Find file you want to exclude and double click on it.
5. Enter the following in to the dialog box -fno-objc-arc and click Done

Let’s say you’ve received JSON data (we’ll call it responseData) from a url and you would like to convert the JSON to an NSDictionary  (dictJSON). Just put in the following code:

NSError *error = nil;
NSDictionary *dictJSON = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:&error];
 
if (error) {
    NSLog(@"JSON parse error: %@", [error localizedDescription]);
    return;
}

Begin by opening the AppleScript Editor.  Press Command + Spacebar to open Spotlight, type “AppleScript”, and then press Enter.

Next, enter the following code into the editor.

tell application "Finder"
	activate
	set x to (path to home folder as text) & "Library:Application Support:iPhone Simulator:5.1:Applications" as alias
	open x
end tell

This script will open a Finder window to the Applications folder for the iPhone Simulator version 5.1.  You can run the script now by clicking the Run button to see it work, but to make it so we can easily run it again later, we should save the file.

1. Go to the menu and choose File > Save As.
2. Enter a name for the script.  I entered “Open Simulator Folder”.
3. For where to save the files, I chose my Applications folder.
4. Choose Application for the file format.
5. And Finally Click the Save button.

Now, if you go to your Launchpad, you should be able to find the script and click on it to run it.

The Applications folder stores each of your apps in a folder with a long encrypted name, but you can usually determine which app you want by looking at the Modified date.  Once you open the folder containing your app, you’ll see a file with the name of the app and a Documents folder.  You can then double click on the Documents folder to view all the files your app has saved to the NSDocumentDirectory.

/Users/<your name>/Library/Application Support/iPhone Simulator/<version>/Applications/<app name>/Documents

Type sqlite3 followed by the name of the sqlite file.

sqlite3 myfile.sqlite

Now type .help to see a list of commands or type out straight sql

select * from entityname

To exit sqlite3 type

.exit

// check if app is in the background
[[NSNotificationCenter defaultCenter] addObserver:@"EnteredBackground" selector:@selector(appDidEnterBackground) name:UIApplicationDidEnterBackgroundNotification object:nil];
 
// check if app is in the foreground
[[NSNotificationCenter defaultCenter] addObserver:@"EnteredForeground" selector:@selector(appDidEnterForeground) name:UIApplicationDidBecomeActiveNotification object:nil];

The first one will run the appDidEnterBackground method when the app has, indeed, entered the background.
The second does the same for entering the foreground.