Using Multiple UITableViewCells for one tableView - ios

I am unsure if I'm setting up the UITableView the right way when using multiple custom cell views. I seem to have my table working however, i think the reuse of cells makes the first cells you see once you load the view the same size as the very first cell which should be the only cell thats double in size. Once I scroll passed them and back up they go to the size thats set for them.
Is there a right way of doing this? I've looked through other forms and tried their ways but this is the closed I've gotten it to work with just that one flaw.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier1 = #"profileCell";
static NSString *CellIdentifier2 = #"profileCells";
if (indexPath.section == 0) {
PFProfileTableCellView * cell = (PFProfileTableCellView *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier1];
//only one row in this section
return cell;
} else{
PFWallPostTableViewCell * cell = (PFWallPostTableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier2];
return cell;
}
}

Use this UITableView delegate method - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath; and return row height according to the sections of your tableview like the example below
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.section == 0) {
return 100.0;
}
return 50.0;
}

Related

Change height of row in UITableView

I have created a simple UITableView with a prototype cell and I have to enlarge the height of row. Unfortunately, I cannot achieve that. I just put the custom size of height for the prototype cell in Interface Builder (Xcode) and put method in ViewController:
-(float)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
return 200.0;
}
And cellForRowAtIndexPath method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
AlbumCell *cell = [tableView dequeueReusableCellWithIdentifier:#"albumCellID"];
if (cell == nil) {
cell = [[AlbumCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"albumCellID"];
}
cell.albumTitle.text = [tableData objectAtIndex:indexPath.row];
return cell;
}
Simulator returns my table with still small height for rows (ca. 40 px). How can I enlarge the height of a row?

UITableView Custom Cells Overlapping

Starting my quest into ios development but I have a problem, below.
The plan:
The result:
You need to set height of your custom cell using tableview delegate method
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.row == 0) {
return 150.0;
}else if (indexPath.row == 1){
return 300.0;
}
return 0.0;
}
as well as u need to set your custom cell cliptobound property to yes in datasource method
- (CGFloat)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
customcell *cell = (customcell *)[tableView dequeResusableCellWithIdentifier:#"newcell" forIndexPath:indexPath];
cell.cliptobound = YES;
return cell;
}
Your tableview needs to know the height of your custom cell, use the following tableview delegate method:
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.row == 0) {
return 100.0;
}
return 200.0;
}
Your cells are getting reused without the content being reset in cellForRowAtIndexPath. In that method you need to blank out the cell content before putting more content in it.

How to hide a static UITableViewCell?

How do you hide a static cell?
I would like to hide and static cell if an image does not exist.
I tried:
imageCell.hidden = YES; //did not work
I have seen answers suggesting to change datasource or use:
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 0;// will hide all cell
}
But I couldnt find a way to do this with a specific view cell.
what I want to achieve:
if(image==nil){
//hide imageCell
}
Now here is the catch , the image is downloaded asynchronously, so deleguate methods might be called before the attempted downlaod.
Do the following :
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.row == 2 && !myImageIsLoaded)
return 0; // Will hide just the third row of your table if myImageIsLoaded is false
return 44;
}
And you can use the following to animate all whenever you want (e.g. each time an image as loaded) :
[myTable beginUpdate];
[myTable endUpdate];
If your cells are static so it should work. Otherwise you could encounter some problems.
If you want literally hide the cell that image does not exist, you can try this:
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
return [cell imageView] ? 44.0f : 0.0f;
}

How to setup cells in a static table divided in sections programmatically

I'm basically making a settings view on my app and I'm using a static table for it. So I divided the table into 3 sections each with one cell. Not programmatically I can easily label each cell and it works but programmatically I'm not able to initialize each cell. I can only initialize the first cell that gets repeated across the 3 sections. I would like a way to initialize a cell for each section but I can't find a method or a way to do that. My tableview also has reuseIdentifiers but it doesn't seem like the UITableViewController recognizes it.
This is what I have done so far.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
#warning Potentially incomplete method implementation.
// Return the number of sections.
return 3;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
#warning Incomplete method implementation.
// Return the number of rows in the section.
return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"EditProfile";
//UITableViewCell *cell = nil; //[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// Configure the cell...
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
// More initializations if needed.
}
//Observations *currentList = [self.teacherNames objectAtIndex:indexPath.row];
cell.textLabel.text = #"Hey";
//return cell;
return cell;
}
But what I want is the cell in the first section to be labeled: Edit Profile, the second one: Invite and the third:Logout
You have to make a condition for how to handle each different section within the table view.
if (indexPath.section == 0) {
cell.textLabel.text = #"Edit Profile";
}else if (indexPath.section == 1) {
cell.textLabel.text = #"Invite";
}else if (indexPath.section == 2) {
cell.textLabel.text = #"Log out";
}......
Check out the tableView delegate methods:
-(NSString*)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section;
- (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section;
-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section;
(IF you're wanting to label the section headers and not the cells in the sections themselves)

Complex UITableView with Prototype Cells, Sections

I'm looking for the best possible solution for a complex UITableView. What I want : I have an arbitrary number of sections. In this section is just one static cell and then should come any number of dynamic cells.
My Data are stored in some NSMutableArray and i tried somethink like this:
Combine static and prototype content in a table view
But i dont know how to handle it with my kind of problem.
So can somebody give me a hint or a best practice?
UPDATE: 1
http://jsfiddle.net/konstheinrich188/HKkA8/ Fiddle shows how my data looks and what im trying todo
This pic shows how i want to code my tableview...
When you are using the term "static", are you really talking about a "uitableview static cell", or rather "cell with static content"?
If the former; why do you need that?
If the latter; how about testing in each section whether this is the first cell in the section, and then presenting static content? For all other cells, display dynamic content:
if (indexPath.row == 0) {
// First row in section. Display static content
...
} else {
// Display dynamic content
...
}
For what purpose do you need the static cells?
So after a while and some testing and listen to your ideas and technicals i solved my problem!
Here is a little code :
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [mappedSprints count];
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
UISprint*s = [mappedSprints objectAtIndex:section];
return s._name;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
UISprint* s = [mappedSprints objectAtIndex:section];
return [s.internalUserStorey count] + [s.externalUserStorey count] + 1;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row == 0) {
return 130;
}
return 80;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[NSString stringWithFormat:#"Cell%d%d", indexPath.row, indexPath.section]];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:[NSString stringWithFormat:#"Cell%d%d", indexPath.row, indexPath.section]];
}
UISprint*s = [mappedSprints objectAtIndex:indexPath.section];
if (indexPath.row == 0) {
//Here is my first cell
//cell.textLabel.text =s._name;
}
else if(indexPath.row >= 0 && indexPath.row<=[s.internalUserStorey count]){
//here are the cells for SubItem
}
else if(indexPath.row >= [s.internalUserStorey count]){
//here are the cells for SubItem 2
}
return cell;
So thanks to all !!
Best Konstantin
You can take one NSMuatableArray and add references on that i.e.
NSMuatableArray *arr=[NSMuatableArray alloc]init];
//section no 1
[arr addObject:#"2"];
//section no 2
[arr addObject:#"1"];
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
switch(arr objectAtIndex[indexPath.row])
{
}
}
you can use this way by using references you want set cells.

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