James Border

Objective-C simple rotate

me — Tue, 14 Feb 2012 16:16:32 +0000

#define degreesToRadians(x) (M_PI * x / 180.0)

[UIView animateWithDuration:0.25 delay:0.0 options:UIViewAnimationCurveEaseOut
animations:^{
object.transform = CGAffineTransformRotate(object.transform, degreesToRadians(90));
} completion:nil
];

See https://github.com/jimsblogfiles/RotateSomething for project & files

Objective-C remove nonalphanumeric chars

me — Mon, 13 Feb 2012 04:28:56 +0000

NSString *dirtyString = @”I just want text @#$!”;
NSCharacterSet *nonAlphaNumericSet = [[ NSCharacterSet alphanumericCharacterSet ] invertedSet ];

NSString *cleanString = [[ dirtyString componentsSeparatedByCharactersInSet:nonAlphaNumericSet ] componentsJoinedByString:@”" ];

NSLog(@”>%@”, cleanString);

2012-02-12 22:29:24.645 Untitled 2[9145:707] >Ijustwanttext

Objective-C NSNotificationCenter passing object

me — Mon, 13 Feb 2012 04:19:15 +0000

//viewdidload or similar
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleUpdateRequest:) name:@”myObject” object:nil];

////////////////////////////////////////////////////
////////// FROM A BUTTON

//button action or similar
-(IBAction)doSomething:(id)sender {

[[NSNotificationCenter defaultCenter] postNotificationName:@”myObject” object:sender];

}

//handler
-(void)handleUpdateRequest:(NSNotification *)notif {

NSLog(@”>>>%i”,[notif.object tag]);

}

////////////////////////////////////////////////////
////////// TABLE CELL

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

NSNumber *indexPath_row = [[NSNumber alloc] initWithInt:indexPath.row];
[[NSNotificationCenter defaultCenter] postNotificationName:@”myObject” object:indexPath_row];

}

//handler
-(void)handleUpdateRequest:(NSNotification *)notif {

NSLog(@”>>>%i”,[notif.object intValue]);

}

Objective-C PNG Sequence

me — Fri, 03 Feb 2012 03:17:49 +0000

NSMutableArray *imageArray = [[NSMutableArray alloc]init];

for (int i = 1; iy <= 40; i++) {
[imageArray addObject:[UIImage imageNamed:[NSString stringWithFormat:@"s%02i.png", i]]];
}

UIImageView * ryuJump = [[[UIImageView alloc] initWithFrame:
CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height)]autorelease];
ryuJump.animationImages = imageArray;
ryuJump.animationDuration = 2.1;
ryuJump.contentMode = UIViewContentModeCenter;

[someview addSubview:ryuJump];

[ryuJump startAnimating];
[imageArray release];

Objective-C urlencode/urldecode

me — Wed, 01 Feb 2012 19:03:47 +0000

-(NSString*)urlEncoded:(NSString*)str {

NSString *escapedUrlString = [str stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
return escapedUrlString;

}

-(NSString*)urlDecoded:(NSString*)str {

NSString *cleanUrlString = [str stringByReplacingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
return cleanUrlString;

}

NSString *devStr = @”http://localhost/dri/json?foo=#bar&something=true&miscc=Foo bar!”;

NSLog(@”devStr: %@”,devStr);

NSString *encString = [self urlEncoded:devStr];
NSLog(@”encString: %@”,encString);

NSString *decString = [self urlDecoded:encString];
NSLog(@”decString: %@”,decString);

Objective-C UIImage -> UIImageView

me — Wed, 01 Feb 2012 05:27:07 +0000

UIImage *image = [UIImage imageNamed:@"greatimage.png"];
UIImageView *imgView = [[UIImageView alloc] initWithImage:image];
imgView.frame = CGRectMake(0, 0, 320, 90);
[self.view addSubview:imgView];
[imgView release];

Objective-C UIButton

me — Wed, 01 Feb 2012 05:16:48 +0000

// a button
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self action:@selector(targetMethod:) forControlEvents:UIControlEventTouchDown];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(0.0, 0.0, 160.0, 40.0);
[self.view addSubview:button];

////////////////////////////////////////
// Button with background images
////////////////////////////////////////

UIButton *bttn = [UIButton buttonWithType:UIButtonTypeCustom];
bttn.frame = CGRectMake(0, 200, 97, 38);
[bttn setTitle:@"Dev One" forState:UIControlStateNormal];
[bttn addTarget:self action:@selector(targetMethod:) forControlEvents:UIControlEventTouchUpInside];

UIImage *bttnImageNormal = [UIImage imageNamed:@"button.png"];
[bttn setImage:bttnImageNormal forState:UIControlStateNormal];

UIImage *bttnImageSelected = [UIImage imageNamed:@"button-selected.png"];
[bttn setImage:bttnImageSelected forState:UIControlStateHighlighted];

[self.view addSubview:bttn];

-(IBAction)targetMethod:(id)sender {

NSLog(@”targetMethod”);

}

Objective-c NSLog alternatives

me — Fri, 13 Jan 2012 20:30:57 +0000

#define DEBUGGING

#ifdef DEBUGGING
# define LogBasic(fmt,…) fprintf(stderr,” :: %s\n”, [[NSString stringWithFormat:fmt, ##__VA_ARGS__] UTF8String]);
#else
# define LogBasic(…)
#endif

#ifdef DEBUGGING
# define LogFunc(fmt,…) fprintf(stderr,”%s :: Line %d >> %s\n”, __PRETTY_FUNCTION__, __LINE__, [[NSString stringWithFormat:fmt, ##__VA_ARGS__] UTF8String]);
#else
# define LogFunc(…)
#endif

#ifdef DEBUGGING
# define LogAlert(fmt, …) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:[NSString stringWithFormat:@"%s\n [Line %d] “, __PRETTY_FUNCTION__, __LINE__] message:[NSString stringWithFormat:fmt, ##__VA_ARGS__] delegate:nil cancelButtonTitle:@”Ok” otherButtonTitles:nil]; [alert show]; }
#else
# define LogAlert(…)
#endif

See https://github.com/jimsblogfiles/PrefixDefaultStuff for project & files.

Objective-C Remote Plist -> Dictionary -> NSUserDefaults

me — Tue, 10 Jan 2012 20:10:19 +0000

#import


@interface RemotePreferences : NSObject {

	NSMutableData *incomingData;

}
@end
@implementation RemotePreferences
-(id)init {
    self = [super init];
    if (self) {
		NSURL *url = [NSURL URLWithString: @"http://example.com/configs.plist"];

		NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:30.0];

		__unused NSURLConnection *fetchConn = [[[NSURLConnection alloc] initWithRequest:request delegate:self] autorelease];
    }
    return self;	
}
- (void)connection:(NSURLConnection *)sender didReceiveData:(NSData *)data {
	if (!incomingData) {

		incomingData = [[NSMutableData alloc] init];

	}
	[incomingData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)sender {
	NSDictionary *prefsDict = [[[NSDictionary alloc] init] autorelease];

	prefsDict = [NSPropertyListSerialization propertyListFromData:incomingData mutabilityOption:NSPropertyListImmutable format:nil errorDescription:nil];
	[[NSUserDefaults standardUserDefaults] registerDefaults:prefsDict];
	// NSLog(@"NSUserDefaults dump: %@", [[NSUserDefaults standardUserDefaults] dictionaryRepresentation]);
}
- (void)connection:(NSURLConnection *)sender didFailWithError:(NSError *)error {

	NSLog(@"connection failed: %@", [error localizedDescription]);

}
-(void)dealloc {

	FuncLog();
    [super dealloc];
	[incomingData release];

	incomingData = nil;
}
//- (NSURLRequest *)connection:(NSURLConnection *)c willSendRequest:(NSURLRequest *)req redirectResponse:(NSURLResponse *)res {}

//- (void)connection:(NSURLConnection *)sender didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)ch {}

//- (NSCachedURLResponse *)connection:(NSURLConnection *)sender willCacheResponse:(NSCachedURLResponse *)cachedResponse{}

@end

AS3 – Convert seconds to ww:dd:hh:mm:ss

me — Thu, 29 Dec 2011 16:45:57 +0000

Credit where credit is due, originally found here:
http://www.rblab.com/blog/2009/07/as3-snippet-convert-seconds-to-wwddhhmmss/

function convertTime(number:Number):String { number = Math.abs(number); var values:Array = new Array(5); values[0] = Math.floor(number / 86400 / 7);// weeks values[1] = Math.floor(number / 86400 % 7);// days values[2] = Math.floor(number / 3600 % 24);// hours values[3] = Math.floor(number / 60 % 60);// mins values[4] = Math.floor(number % 60);// secs


    var stopage:Boolean = false;

    var cutIndex:Number = -1;
    for (var i:Number = 0; i < values.length; i++)

    {

        if (values[i] < 10)

        {

            values[i] = "0" + values[i];

        }

        if (values[i] == "00" && i < (values.length - 2) && !stopage)

        {

            cutIndex = i;

        }

        else

        {

            stopage = true;

        }

    }

    values.splice(0, cutIndex + 1);

return values.join(":"); }