Programing Tips

NSRange Use Example

programingtips — Fri, 18 Sep 2009 15:40:47 +0000

NSString *str=@”12345ace}”; //GIVE YOUR STRING TO CHECK
//TO CHECK DIGIT 0 TO 9
for(int i=0;i<10;i++)
{

NSRange rng = [str rangeOfString:[NSString stringWithFormat:@"%d",i]];
if(rng.length > 0)
{

str = [str stringByReplacingOccurrencesOfString:[NSString stringWithFormat:@"%d",i] withString:@”"];
//NSLog(@”boss”);
}
else
{
NSLog(@”show warning!!!!”);
break;
}

}

AppDelegate Use

programingtips — Fri, 18 Sep 2009 15:39:37 +0000

TabsAppDelegate *tabsDelegate = [[UIApplication sharedApplication] delegate];

- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];

[tabsDelegate showTabBarImage:2];

UITabbar customaize

programingtips — Fri, 18 Sep 2009 15:38:34 +0000

UIView *customview=[[UIView alloc] initWithFrame:CGRectMake(0, 0, 320,50)];
UIImageView *Imageviewer=[[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320,50)];
Imageviewer.image=[UIImage imageNamed:@"tool-up.png"];
[customview addSubview:Imageviewer];
[tbar addSubview:customview];
[tbar sendSubviewToBack:customview];

UITable view row deselect

programingtips — Fri, 18 Sep 2009 15:37:51 +0000

[tableView deselectRowAtIndexPath:indexPath animated:YES];

UISearchbar style change

programingtips — Fri, 18 Sep 2009 15:37:19 +0000

searchBar.barStyle = UIBarStyleBlackOpaque;

Layout send to back or front

programingtips — Fri, 18 Sep 2009 15:36:41 +0000

[window sendSubviewToBack:rootController.view];
[window sendSubviewToBack:label];

UIView animation

programingtips — Fri, 18 Sep 2009 15:35:40 +0000

dataTable.alpha = 0;
[UIView beginAnimations:@"SlideOut" context:nil];
[UIView setAnimationDuration:.7];
[UIView setAnimationDelegate:self];
dataTable.alpha = 1;
[UIView commitAnimations];

NSTimer call a function

programingtips — Fri, 18 Sep 2009 15:34:50 +0000

[NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(timerFunc) userInfo:nil repeats:NO];

Custom animation

programingtips — Fri, 18 Sep 2009 15:34:10 +0000

Add Quartz core framework and then

CATransition *animation = [CATransition animation];
[animation setDelegate:self];
[animation setDuration:.3f];
[animation setType:kCATransitionPush];
[animation setSubtype: kCATransitionFromTop];
[dataTable.layer addAnimation:animation forKey:@"anyValue"];

here dataTable is a iPhone control.

UIView up and down

programingtips — Fri, 18 Sep 2009 15:30:18 +0000

#define kOFFSET_FOR_KEYBOARD 160.0

#define kTextFieldWidth 100.0 // initial width, but the table cell will dictact the actual width

// the duration of the animation for the view shift
#define kVerticalOffsetAnimationDuration 0.30

#define kUITextField_Section                   0
#define kUITextField_Rounded_Custom_Section       1
#define kUITextField_Secure_Section               2

- (void)setViewMovedUp:(BOOL)movedUp
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
// Make changes to the view’s frame inside the animation block. They will be animated instead
// of taking place immediately.
// CGRect rect = self.view.frame;
CGRect rect = contentView.frame;
if (movedUp)
{
// If moving up, not only decrease the origin but increase the height so the view
// covers the entire screen behind the keyboard.
rect.origin.y -= kOFFSET_FOR_KEYBOARD;
rect.size.height += kOFFSET_FOR_KEYBOARD;

}
else
{
// If moving down, not only increase the origin but decrease the height.
rect.origin.y += kOFFSET_FOR_KEYBOARD;
rect.size.height -= kOFFSET_FOR_KEYBOARD;

}
//self.view.frame = rect;
contentView.frame = rect;

[UIView commitAnimations];
}

- (IBAction)textFieldUp:(id)sender{
[self setViewMovedUp:YES];

}

- (void)textFieldDidEndEditing:(UITextField *)textField
{

if(contentView.frame.origin.y < 0)
{
[self setViewMovedUp:NO];
}
/*
if(self.view.frame.origin.y < 0)
{
[self setViewMovedUp:NO];
}*/
}