Changing frame (not just height) of UITableViewCell once it has displayed - ios

Question

This is really stumping me. I know how to change the height of a UITableViewCell in heightForRowAtIndexPath. The issue if that I am trying to get two cells to sometimes overlap - so sometimes I need the frame of the cell in question to be higher than the height of the row. I know how to do this for the initial display of the cell by subclassing the custom cell and overriding the setFrame method. But once the cell displays, it seems that I cannot manually change the frame. Again - I am not talking about using heightForRowAtIndexPath here or tableview.rowHeight - I am talking about leaving the row height and manually changing the frame of the cell (possibly multiple times) after it has been displayed. Can anyone help me out?

Answer 1

Ok i dont no i got ur question or not, comment if there is any thing missed, i am posting the sample code to change the frame of custom cell manually by setting the different frame for each cell, in my code by tapping a button the frame of last cell is changed each time. Try it out this might u needed i dont no what u exactly want. Hope this Helps :)
//in CustomCell.h file
#import <UIKit/UIKit.h>
#interface CustomCell : UITableViewCell
{
}
#property(nonatomic, assign) CGRect frameRect;
#end
//CustomCell.m file
#import "CustomCell.h"
#implementation CustomCell
#synthesize frameRect;
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code
}
return self;
}
- (void)dealloc
{
[super dealloc];
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
- (void)layoutSubviews
{
// always try to set frame in layoutSubviews
[super layoutSubviews];
self.frame = frameRect;
}
//in ViewController.h file
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController<CountdownTimerDelegate>
- (IBAction)changeFrame:(id)sender;
#end
//ViewController.m file
#import "ViewController.h"
#import "CustomCell.h"
#interface ViewController ()<UITableViewDataSource, UITableViewDelegate>//delegate
{
CGRect aChangableRect; //your changeable frame
int k;
int yPos;
}
- (void)viewDidLoad
{
k = 25;
yPos = 220;
aChangableRect = CGRectMake(10,440, 50, 30);
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 3;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 2;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
//initially set it no for all cell
CustomCell *cell = [self.aTableView dequeueReusableCellWithIdentifier:#"cell"];
if(cell == nil)
{
cell = [[CustomCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
}
if(indexPath.section == 0)
{
if(indexPath.row == 0)
{
cell.frameRect = CGRectMake(13, 5, 150, 50);
}
else if (indexPath.row == 1)
{
cell.frameRect = CGRectMake(5,60 , 200, 45);
}
}
else if(indexPath.section == 1) //second section
{
if(indexPath.row == 0)
{
cell.frameRect = CGRectMake(13, 110, 150, 50);
}
else if (indexPath.row == 1)
{
cell.frameRect = CGRectMake(5,165 , 200, 45);
}
}
else
{
// cell.frameRect = aChangableRect; //for last cell of last section
if(indexPath.row == 0)
{
cell.frameRect = CGRectMake(13, 220, 150, 50);
}
else if (indexPath.row == 1)
{
cell.frameRect = aChangableRect;
}
}
cell.textLabel.text = #"happy coding";
return cell;
}
//i am cganging the frame of last cell each time button clicked
- (IBAction)changeFrame:(id)sender
{
aChangableRect = CGRectMake(25, 450 , k * 2, k * 3);
[self.aTableView reloadData];
k = k + 10;
}