how to make UIView work as an scrollview - ios

Question

I need some serious help on this problem of mine where I need to work a UIView as an ScrollView. Below uploaded picture will clear all the doubts.
I have taken four buttons along with a UIView below them along with 4 container views which I have placed one above the other so as to work along with the four buttons.. What I want now is to work UIView as an ScrollView. Whenever I click any button, the View moves forward as well as the it changes the container view. And respective container view shows whenever I click a button.

Answer 1

Hi better you can use UIScrollView instead of UIView like:
//Declare it
NSMutableArray * buttonArray
int selectedIndex;
-(void)setUpSegmentBar {
NSArray * namesOfMenus =#[#"Button1",#"Button2",#"Button3",#"Button4",#"Button5"];
// Scrollview added on storyBoard
myScrollView =[[UIScrollView alloc]initWithFrame:CGRectMake(0, 2, self.view.frame.size.width, 40)];
CGFloat scrollWidth = 0.f;
buttonArray=[[NSMutableArray alloc]init];
for ( int j=0; j<namesOfMenus.count; j++)
{
NSString * name =[namesOfMenus objectAtIndex:j];
CGSize size = [name sizeWithAttributes:
#{NSFontAttributeName: [UIFont fontWithName:font_bold size:font_size_button]}];
CGSize textSize = CGSizeMake(ceilf(size.width), ceilf(size.height));
CGFloat strikeWidth;
if (iPAD) {
strikeWidth = self.view.frame.size.width/5.5;
}else{
strikeWidth = textSize.width;
}
CGRect frame = CGRectMake(scrollWidth, 0,strikeWidth+20, 40);
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setTag:j];
button.frame = frame;
[button setBackgroundColor:[UIColor whiteColor]];
button.titleLabel.textColor=[UIColor whiteColor];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
button.layer.borderColor=[UIColor whiteColor].CGColor;
button.titleLabel.textAlignment=NSTextAlignmentCenter;
[button addTarget:self action:#selector(buttonEvent:) forControlEvents:UIControlEventTouchUpInside];
[button setTitle:name forState:UIControlStateNormal];
// ScrollWidth As per Button Width
scrollWidth= scrollWidth+strikeWidth+20;
// to Check Which Button Is Selected.
if (j==selectedIndex) {
// If Selected Do UI Changes
button.backgroundColor=segment_selected_Color ;
[button setTitleColor:segment_disselected_Color forState:UIControlStateNormal];
[button addLayerAndCornerRadius:0 AndWidth:1 AndColor:segment_disselected_Color];
[button addShaddow];
if (iPhone6||iPhone6plus) {
button.titleLabel.font=[UIFont fontWithName:font_bold size:font_size_normal_regular];
}else {
button.titleLabel.font=[UIFont fontWithName:font_bold size:font_size_normal_regular];
}
}else {
// Other Buttons
[button addLayerAndCornerRadius:0 AndWidth:1 AndColor:segment_disselected_Color];
button.backgroundColor=segment_disselected_Color;
[button setTitleColor:segment_selected_Color forState:UIControlStateNormal];
if (iPhone6||iPhone6plus) {
button.titleLabel.font=[UIFont fontWithName:font_bold size:font_size_normal_regular];
}else{
button.titleLabel.font=[UIFont fontWithName:font_bold size:font_size_normal_regular];
}
}
// Add Buttons in Array
[buttonArray addObject:button];
// Add button on Scroll View
[myScrollView addSubview:button];
}
myScrollView.contentSize = CGSizeMake(scrollWidth, 30.f);
myScrollView.pagingEnabled = NO;
myScrollView.backgroundColor=[UIColor whiteColor];
[myScrollView setShowsHorizontalScrollIndicator:NO];
[myScrollView setShowsVerticalScrollIndicator:NO];
return myScrollView;
}
And For Handeling button action.
-(void)buttonEvent:(UIButton*)sender
{
NSInteger index= sender.tag;
selectedIndex= (int) index;
for(int i=0;i<buttonArray.count;i++)
{
UIButton * button =(UIButton*)[buttonArray objectAtIndex:i];
if (i==selectedIndex) {
[button addLayerAndCornerRadius:0 AndWidth:1 AndColor:segment_disselected_Color];
button.backgroundColor=segment_selected_Color ;
[button setTitleColor:segment_disselected_Color forState:UIControlStateNormal];
[button addShaddow];
if (iPhone6||iPhone6plus) {
button.titleLabel.font=[UIFont fontWithName:font_bold size:font_size_normal_regular];
}else {
button.titleLabel.font=[UIFont fontWithName:font_bold size:font_size_normal_regular];
}
}else {
button.backgroundColor=segment_disselected_Color;
[button addLayerAndCornerRadius:0 AndWidth:1 AndColor:segment_disselected_Color];
[button setTitleColor:segment_selected_Color forState:UIControlStateNormal];
if (iPhone6||iPhone6plus) {
button.titleLabel.font=[UIFont fontWithName:font_bold size:font_size_normal_regular];
}else{
button.titleLabel.font=[UIFont fontWithName:font_bold size:font_size_normal_regular];
}
}
}
CGRect frame1 = myScrollView.frame;
UIButton * bt=(UIButton*)[buttonArray objectAtIndex:index];
frame1 =bt.frame ;
// By using it button will scroll and show properly
[myScrollView scrollRectToVisible:frame1 animated:YES];
[self setupTableAfterClick];
}