Create UIScrollView in iPhone Objective C

Today, we will create a scroll view using the UIScrollView class and add the alphabets in the scroll view. The frame values used should be changed as per the needs. Action method for these buttons can also be added.


#define WIDTH_OF_SCROLL_PAGE 65
#define HEIGHT_OF_SCROLL_PAGE 40
#define WIDTH_OF_IMAGE 65


CGRect scrollframe = CGRectMake(0.0, 4.0, 320, 40);
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:scrollframe];
scrollView.bounces = YES;
scrollView.delegate = self;
scrollView.userInteractionEnabled = YES;
scrollView.clipsToBounds = YES;
scrollView.scrollEnabled = YES;
scrollView.showsHorizontalScrollIndicator = NO;




NSMutableArray *array = [[NSMutableArray alloc] initWithObjects:@"A",@"B",@"C",@"D",@"E",@"F",@"G",@"H", @"I", @"J", @"K", @"L", @"M", @"N", @"O", @"P", @"Q", @"R", @"S", @"T", @"U", @"V", @"W", @"X", @"Y", @"Z", nil];


for (int i = 0; i < [array count]; i++) {


NSString *name = [array objectAtIndex:i];

UIButton *btn = [[UIButton alloc] initWithFrame:frame];
btn.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
btn.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;
[btn setTitle:name forState:UIControlStateNormal];

[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
btn.titleLabel.font = [UIFont boldSystemFontOfSize:14.0];
btn.enabled = TRUE;
btn.tag = i+1;

[scrollView addSubview:btn];
[btn release];

}


[scrollView setContentSize:CGSizeMake(WIDTH_OF_IMAGE * 500, HEIGHT_OF_IMAGE)];
[scrollView setContentOffset:CGPointMake(WIDTH_OF_IMAGE * 258, 0)];
scrollViewOffset = WIDTH_OF_IMAGE * 258;
scrollView.pagingEnabled = YES;
[self.view addSubview:scrollView];

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