..:::Trio Hasim:::..

Color with RGB

iPhone SDK Tips & Tricks

UIColor *myColor = [UIColor colorWithRed:32/255.0 green:93/255.0 blue:137/255.0 alpha:1.0];

Set Date format

iPhone SDK Tips & Tricks

NSDateFormatter *dateFormat = [[[NSDateFormatter alloc] init] autorelease];
[dateFormat setDateFormat:@"dd-MMM-yyyy"];
NSString *myString = [dateFormat stringFromDate:[NSDate date]];

Determine device (iphone or simulator)

iPhone SDK Tips & Tricks

#if !(TARGET_IPHONE_SIMULATOR)
  NSLog(@"iphone");
#else
  NSLog(@"simulator");
#endif

Get sender title and tag

iPhone SDK Tips & Tricks


- (void)buttonClick:(id )sender{
 NSLog(@"tag: %d", [sender tag]);
 NSLog(@"title: %@", [sender currentTitle]);
}

Amount of days difference between two dates

iPhone SDK Tips & Tricks

NSDateComponents *compsDisplay = [[NSDateComponents alloc] init];
  [compsDisplay setDay:25];
  [compsDisplay setMonth:12];
  [compsDisplay setYear:2012];
  NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
  NSDate *expDate = [gregorian dateFromComponents:compsDisplay];
  [compsDisplay release];
  
  int daysRemaining = [expDate timeIntervalSinceNow]/86400;
//minutes - divide by 60

//hours - divide by 3600

  NSString *msg = [NSString stringWithFormat:@"%d days remaining.", dayRemaining];

Cara Nampilin status YM

ref: http://www.elitezoom.com/how-to-show-yahoo-messenger-ym-status-on-blog.html
http://iamregin.com/CustomScripts/YahooMessengerIcons.php
http://tricks-collections.com/adding-yahoo-messenger-online-status-to-website-or-blog/
http://www.sanbik.co.cc/2010/04/adding-yahoo-messenger-online-status.html

UIWebView *myWebView = [[UIWebView alloc] initWithFrame:CGRectMake(15, 10, 300, 10)];
myWebView.backgroundColor = [UIColor clearColor];
[myWebView setOpaque:NO];
myWebView.delegate = self;
[myView addSubview:myWebView];
NSString *bgClear = @"<body style="" background-color: transparent""> bla bla bla";
[myWebView loadHTMLString:bgClear baseURL:baseUrl];
[myWebView sizeThatFits:CGSizeZero];

Dynamic Webview Height

- (void) webViewDidFinishLoad: (UIWebView *)sender
{
  [self performSelector:@selector(calculateWebViewSize) withObject:nil afterDelay:0.1];
}

- (void) calculateWebViewSize
{
  UIScrollView *webScrollView = [[myWebView subviews] objectAtIndex:0];
  CGSize webScrollRect = webScrollView.contentSize;
  NSLog(@"webScrollrect: %f", webScrollRect.height);
}

Add UIWebViewDelegate in .h file

To specify minimum OS version

iPhone SDK Tips & Tricks

iPhone OS Deployment Target

To specify which OS version is the minimum that your application will support, you set the deployment target. Your application will then run on this minimum OS as well as all later versions.


source

How to install new iOS from IPSW file