以编程方式在UIScrollView中添加UIButton

Question

I am new to iPhone development, and I want to know how can I add UIButton s in a UIScrollView ?

These buttons should be vary from 12 to 20 , 24 , 28 etc.

Is there any code from that we can do this dynamically, not from Nib file, and is there any samples avaliable?

Thanks in advance.

Answer 1

Sure, you can add the buttons manually with something like the following:

[scrollView addSubview:yourButton];

You can create both things via IB and set the button's frame vía code

Answer 2

you can do like this:

[self.scrollView setScrollEnabled:YES];
[self.scrollView setFrame:CGRectMake(0, 70,320, 70)];
[self.scrollView setContentSize:CGSizeMake(2370, 70)];

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

    // view allocation
    ButnView=[[UIView alloc] init];
    [ButnView setFrame:CGRectMake(x, 0, 82, 70)];

    // label allocation
    UILabel* butnheaderlabel = [[UILabel alloc] initWithFrame:CGRectMake(14, -10, 80, 70)];
    UILabel* butnfooterlabel  = [[UILabel alloc] initWithFrame:CGRectMake(27, 10, 80,70)];
    [butnheaderlabel setFont:[UIFont systemFontOfSize:14.0]];

    // button allocation
    btn=[UIButton buttonWithType:UIButtonTypeCustom];
    [btn setFrame:CGRectMake(0, 0,82, 70)];
    [btn setBackgroundColor:[UIColor clearColor]];
    [btn setTag:i];
    [[btn layer] setBorderWidth:1.0f];
    [[btn layer] setBorderColor:[UIColor grayColor].CGColor];
    NSString*resourceKey=[your array objectAtIndex:i];
    NSArray*seperatedStr=[resourceKey componentsSeparatedByString:@","];
    [btn addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
    [btn addSubview:butnheaderlabel];
    [btn addSubview:butnfooterlabel];
    [ButnView addSubview:btn];
    [self.scrollView addSubview:ButnView];
    x+=81;
}