Cocos2d 2.0 Menu Item Toggle

Set Default Value for Settings

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString *soundOnKey = [NSString stringWithString:@"sound_on"];
NSNumber *soundOnValue = [NSNumber numberWithInt:0];
NSDictionary *defaultSoundOnValue = [NSDictionary dictionaryWithObject:soundOnValue forKey:soundOnKey];
[defaults registerDefaults:defaultSoundOnValue];

Declare public variable

CCMenuItem *sound_control_on;

CCMenuItem *sound_control_off;

Create Toggle Item

sound_control_on = [CCMenuItemImage itemWithNormalImage:@"sound_control_on.png" selectedImage:@"sound_control_on_pressed.png" target:nil selector:nil];

sound_control_off = [CCMenuItemImage itemWithNormalImage:@"sound_control_off.png" selectedImage:@"sound_control_off_pressed.png" target:nil selector:nil];

CCMenuItemToggle *sound_control_toggle = [CCMenuItemToggle itemWithTarget:self selector:@selector(sound_control:) items:sound_control_on, sound_control_off, nil];

sound_control_toggle.position = ccp(0, -55);

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

NSString *soundOnKey = [NSString stringWithString:@"sound_on"];

[sound_control_toggle setSelectedIndex:[defaults integerForKey:soundOnKey]];

Toggle Handler

-(void) sound_control:(id)sender {

    CCMenuItemToggle *item = (CCMenuItemToggle *)sender;

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

    NSString *soundOnKey = [NSString stringWithString:@"sound_on"];

    NSNumber *soundOnValue;

    if (item.selectedItem == sound_control_on) {

        soundOnValue = [NSNumber numberWithInt:0];

    } else {

        soundOnValue = [NSNumber numberWithInt:1];

    }

    [defaults setInteger:soundOnValue.intValue forKey:soundOnKey];

}

iOS Preferences and Settings Programming

Set Default Value

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

for (int i = 0; i < 5; i++) {

    NSString *itemKey = [NSString stringWithFormat:@"item%d", i];

    NSNumber *itemValue = [NSNumber numberWithInt:0]; 

    NSDictionary *defaultItem = [NSDictionary dictionaryWithObject:itemValue forKey:itemKey];

    [defaults registerDefaults:defaultItem];

}

Get current value and Increment by one

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

for (int i = 0; i < 5; i++) {

    if (NeedToIncrementByOne[i]) {

        NSString *itemKey = [NSString stringWithFormat:@"item%d", i];

        NSInteger itemValue = [defaults integerForKey:itemKey] + 1;

        [defaults setInteger:itemValue forKey:itemKey];

    }

}

Types Support

setBool:forKey:

setDouble:forKey:

setFloat:forKey:

setInteger:forKey:

setObject:forKey:

setURL:forKey:

setValue:forKey:

Set Nil

setNilValueForKey:

Cocos2d 2.0 Email Sending with Attachment

Implement MFMailComposeViewControllerDelegate

@interface EMailSending : CCLayer <MFMailComposeViewControllerDelegate> {
...
}

-(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {

...

}

Add Child View Controller

    emailViewController = [[UIViewController alloc] init];

    [[CCDirector sharedDirector] addChildViewController:emailViewController];

Create Mail Compose View Controller

    MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];

Present Modal View Controller

    [emailViewController presentModalViewController:picker animated:YES];

Dismiss Modal View Controller

    [controller dismissModalViewControllerAnimated:NO];

Create Render Texture and Take Snapshot for this Layer

    CCRenderTexture *renderTexture = [CCRenderTexture renderTextureWithWidth:windowSize.width height:windowSize.height];

    [renderTexture begin];

    [self visit];

    [renderTexture end];

    [renderTexture saveToFile:file format:kCCImageFormatPNG];

Compose EMail with Attachment

    picker.mailComposeDelegate = self;

    [picker setSubject:@"This is test subject"];

    [picker setMessageBody:@"This is test message body" isHTML:YES];

...

    NSString *file = @"screenShot.png";

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory = [paths objectAtIndex:0];

    NSString *screenShotPath = [documentsDirectory stringByAppendingPathComponent:file];

    NSData *data = [NSData dataWithContentsOfFile:screenShotPath];

    [picker addAttachmentData:data mimeType:@"image/png" fileName:@"attachment .png"];

Save Snapshot to Photo Album

    NSData *data = [NSData dataWithContentsOfFile:screenShotPath];

    UIImage *image = [UIImage imageWithData:data];

    UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);

Sample code for EMailSending.h

#import "cocos2d.h"
#import "MessageUI/MessageUI.h"


@interface EMailSending : CCLayer <MFMailComposeViewControllerDelegate> {
    UIViewController *emailViewController;
    CCMenu *menu;
    CCSprite *sprite;
}


+(CCScene *)scene;


@end

Sample code for EMailSending.m

#import "EMailSending.h"

@implementation EMailSending

+(CCScene *)scene {

    CCScene *scene = [CCScene node];

    EMailSending *layer = [EMailSending node];

    [scene addChild:layer];        

    return scene;

}

-(id)init {

    if (self = [super init]) {

        CCMenuItem *emailItem = [CCMenuItemFont itemWithString:@"Email" target:self selector:@selector(emailCallback)];

        menu = [CCMenu menuWithItems:emailItem, nil];

        menu.position = ccp(50, 50);

        [self addChild:menu];

        sprite = [CCSprite spriteWithFile:@"mySprite.png"];

        sprite.position = ccp(200, 200);

        [self addChild:sprite];

        emailViewController = [[UIViewController alloc] init];

        [[CCDirector sharedDirector] addChildViewController:emailViewController];

    }

    return self;

}

-(void)emailCallback {

    [[CCDirector sharedDirector] pause];

    [[CCDirector sharedDirector] stopAnimation];

    MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];

    picker.mailComposeDelegate = self;

    [picker setSubject:@"This is test subject"];

    [picker setMessageBody:@"This is test message body" isHTML:YES];

    

    NSString *file = @"screenShot.png";

    [CCDirector sharedDirector].nextDeltaTimeZero = YES;

    CGSize windowSize = [CCDirector sharedDirector].winSize;

    CCRenderTexture *renderTexture = [CCRenderTexture renderTextureWithWidth:windowSize.width height:windowSize.height];

    [renderTexture begin];

    [self visit];

    [renderTexture end];

    [renderTexture saveToFile:file format:kCCImageFormatPNG];

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory = [paths objectAtIndex:0];

    NSString *screenShotPath = [documentsDirectory stringByAppendingPathComponent:file];

    NSData *data = [NSData dataWithContentsOfFile:screenShotPath];

    UIImage *image = [UIImage imageWithData:data];

    UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);

    [picker addAttachmentData:data mimeType:@"image/png" fileName:@"attachment .png"];

    [emailViewController presentModalViewController:picker animated:YES];

}

-(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {

    [[CCDirector sharedDirector] resume];

    [[CCDirector sharedDirector] startAnimation];

    [controller dismissModalViewControllerAnimated:NO];

}

@end

iOS warning

incomplete implementation

To find out which method is not implemented

• press command+4
• click the little arrow which describe that the method is not implemented
• click Method declared here