page control using scrollview

vc.h

#import <UIKit/UIKit.h>

@interface scrollingViewController : UIViewController

@property (weak, nonatomic) IBOutlet UIScrollView *sv;

@property (weak, nonatomic) IBOutlet UIPageControl *pageControl;

@end

vc.m

#import "scrollingViewController.h"

#import "scrollingTableViewCell.h"

@interface scrollingViewController ()<UIScrollViewDelegate,UITableViewDelegate,UITableViewDataSource>{

NSArray *arr,*arr1,*arr2,*arr3;

CGFloat screenWidth,screenHeight;

NSInteger tableCount;

UITableView *v;

NSMutableArray *myArray,*ary;

NSInteger vcount;

UITableView *table;

}

@end

@implementation scrollingViewController

- (void)viewDidLoad {

[super viewDidLoad];

myArray=[[NSMutableArray alloc]init];

tableCount=4;

_pageControl.numberOfPages=tableCount;

[self createElements];

}

-(void)createElements

{

arr=[NSArray arrayWithObjects:@"hi",@"h",@"h",@"h", nil];

arr1=[NSArray arrayWithObjects:@"hi",@"hi",@"hi",@"hi", nil];

arr2=[NSArray arrayWithObjects:@"hi",@"hk",@"hj",@"ho", nil];

arr3=[NSArray arrayWithObjects:@"hi",@"hk",@"hj",@"ho", nil];

ary = [[NSMutableArray alloc]initWithObjects:arr,arr1,arr2,arr3, nil];

NSLog(@"%@",ary);

CGRect screenRect = [[UIScreen mainScreen] bounds];

screenWidth = screenRect.size.width;

screenHeight = screenRect.size.height;

if (tableCount>0) {

for (int i=0; i<tableCount; i++) {

v=[[UITableView alloc]initWithFrame:CGRectMake(i*screenWidth, 0,screenWidth,screenHeight)];

[myArray addObject:v];

}

// UITableView *v=[[UITableView alloc]initWithFrame:CGRectMake(0, 0,screenWidth,screenHeight)];

// UITableView *v1=[[UITableView alloc]initWithFrame:CGRectMake(screenWidth, 0, screenWidth,screenHeight)];

// UITableView *v2=[[UITableView alloc]initWithFrame:CGRectMake(2*screenWidth, 0, screenWidth,screenHeight)];

_sv.showsHorizontalScrollIndicator=NO;

_sv.showsVerticalScrollIndicator=NO;

for (int i=0; i<myArray.count; i++) {

table=[myArray objectAtIndex:i];
//make scroll view tag to high value(eg. 10000)
table.tag=i;

[_sv addSubview:table];

table.delegate=self;

table.dataSource=self;

}

// [_sv addSubview:v1];

// [_sv addSubview:v2];

_sv.delegate=self;

_sv.contentSize=CGSizeMake(self.sv.frame.size.width*tableCount, self.sv.frame.size.height);

// v.delegate=self;

// v.dataSource=self;

}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

return 1;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

NSArray* val;

val=ary[_pageControl.currentPage];

vcount=val.count;

NSLog(@"%lu",(unsigned long)val.count);

return vcount;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

scrollingTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"scrollingTableViewCell"];

if (cell == nil)

{

NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"scrollingTableViewCell" owner:self options:nil];

cell = [topLevelObjects objectAtIndex:0];

}

NSLog(@"%ld",(long)_pageControl.currentPage);

cell.l.text=[ary[_pageControl.currentPage] objectAtIndex:indexPath.row ];

NSLog(@"%@",cell.l.text);

return cell;

}

- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset

{

CGFloat pageWidth = screenWidth;

int page = floor((scrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1;

if ((targetContentOffset->x - (floor(targetContentOffset->x / pageWidth) * pageWidth)) > pageWidth) {

page++;

}

targetContentOffset->x = page * pageWidth;

_pageControl.currentPage=page;

UITableView *tempTable=(UITableView *)[_sv viewWithTag:_pageControl.currentPage];

[tempTable reloadData];

}

@end

iOS App codez

page control using scrollview

1 comments: