I have a table view where in each cell i want to add various fields dynamically as i fetch them from a web service. each cell will have different information represented by different fields.
My question is how do I set the height of the cell dynamically for each cell with different number of fields which gets added in my cell. Each field will be displayed using a label that will be added to the cell view.
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I have a tableView with custom table cells which displays a list of sayings. While selecting a cell (say "saying1") from the tableView, the cell will get selected and will moves to next view controller for showing an explanation of selected saying. In that view controller two buttons "Previous" and "Next" are there for navigating to previous and next saying. So user may select next button for seeing next saying (say "saying2"). But the problem here is, In this stage when i navigate back to my tableview, the cell selected will be "saying1" not "saying2".
In order to solve this problem, i collected the currently selected sayings ("saying2's") index from array (ie,index will be 1) and passed it to the previous tableView through segue and converted that value into NSIndexpath. After this step i don't know what to do. Please help me in solving this.
You can specifically select a cell by calling following method present in UITableView class :
selectRowAtIndexPath:animated:scrollPosition:
refere to following link : https://developer.apple.com/library/ios/documentation/uikit/reference/UITableView_Class/Reference/Reference.html#//apple_ref/occ/instm/UITableView/selectRowAtIndexPath:animated:scrollPosition:
I'm trying to programmatically select cells in a UICollection view. I'm new to Obj-C and I'm not quite sure how to use the selectItemAtIndexPath property. I can grab an array of the images the user has previously selected. It is just an array of numbers corresponding to named images. But I'm not sure how to use that information with selectItemAtIndexPath.
I've looked for examples of someone using
- (void)selectItemAtIndexPath:(NSIndexPath *)indexPath animated:(BOOL)animated scrollPosition:(UICollectionViewScrollPosition)scrollPosition
But I'm not sure how to use it with my UICollectionView so I can have the right cells selected when the view loads and thus be highlighted. I have multiple selection on.
You should call selectItemAtIndexPath: for each cell you want to highlight, like so:
[self.collectionView selectItemAtIndexPath:path animated:NO scrollPosition:UICollectionViewScrollPositionNone]
Note that for one item (and one only!) you probably want to set the animated property to YES and provide a scroll position (one item only because otherwise you're going to be making a lot of needless animation calls).
You'll first need to get the index paths of the cells you want to select. The index path consists of two numbers: the section the cell is in and the row number (or order, if your collection view doesn't have rows) of the cell inside that section.
If you store the index paths of the cells the user has selected in an array then you can just iterate through. Otherwise you'll need to find the index path out, using a UICollectionView method such as indexPathForCell.
I have a custom table view and each cell has a title and a button. When the user clicks on the button, I need the title of that cell to appear on another view. How do I get this?
It's not very tough here are the 2 solutions:
When you are creating the cell, assign tag to the label you want to get the title value (or text value)
second option is:
If you want to get the title at the didselect select method just get the cell from the table view with the help of indexpPath.row and then extract the label and it's text. You can assign the tag in the custom cell design and then extract it from cell (once you get the cell).
Is there a way to move the highlighted tableviewcell programatically. If I wanted to highlight cell number 3 and then highlight cell number 4 instead, based on something the user did in the detail view of my split view controller, can I do this?
Is there a way I can get the indexpath for the row two below one that I have?
Thanks!
You can do this via the UITableView selectRowAtIndexPath:animated:scrollPosition: method.
In terms of getting the "next" row from the indexPath, you can simply use the indexPath.row property (as supplied from your UITableViewDelegate's tableView:didDeselectRowAtIndexPath: method) as the basis for the selected row.
I want to change a outline view , and add checkbox cell in front of node , and the node have a icon and how to add checkbox in head of the icon?
Download the DragNDropOutlineView sample code from Apple and have a look. It contains all the features you're looking for.
As for adding cells, think of it more in terms of adding columns (a column is designed to hold one cell of a single type). If you want more controls in each row, add a new column and set its cell type. Both of these actions can be performed easily in Interface Builder. You can select the table and increase its column count by one (a new column will appear), move the column where you want it (to the beginning), and drag a checkbox-configured button cell (there's a checkbox cell in the IB palette) into the body of the column and its "data cell" prototype will be set. That's it. Just wire it up as you normally would (NSTableViewDataSource or Cocoa Bindings) and you're done.