I have a UITableViewCell subclass that has 3 labels and sizes and positions the labels based on the text length. When selected all rows perform the same function. I'd like some rows to also have a detail view associated with them. So I want to add a UIButton to a few rows, but I'm not sure how to do it.
Should I create a UIButton member of the UITVCell subclass and in layoutSubviews if the button is not nil I can make room for it?
What would cellForRowAtIndexPath look like? Do I need two reuse identifiers ? One for button and one for no button? Or just create the button and the cells that have buttons will automatically detect the button in layoutSubviews and make room for it?
I can't find any examples online of someone doing this without using XIB..
EDIT - So I added the detail disclosure button as suggested below, I can detect that my cell has an accessoryType, but the accessoryView width and height are garbage.. I need a width and height because right now the accessory is on Top of my row text since I'm not accounting for it in my layoutSubviews code..
// CustomTableViewCell.m:
- (void)layoutSubviews {
// I need a width / height here so I can accomodate the accessory button.
if ( self.accessoryType != UITableViewCellAccessoryNone ) {
NSLog(#"accessory! %f %f",self.accessoryView.frame.size.width, self.accessoryView.frame.size.height);
}
}
You don't need to add a UIButton to rows that have a detail view -- just allow them to have a disclosure button (note: button, not indicator!). A disclosure button, when tapped, typically shows a detail view for that cell.
To enable the disclosure button for a certain cell, do the following in the cellForRowAtIndexPath method:
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
More details here:
What's the difference between an Detail Disclosure Button and an Disclosure Indicator?
Related
My goal is to create a custom UITableViewCell which contains 2 UILabels. One is the title and one is the detail. The detail label should allow for 3 rows of text.
So I went on and created a custom table view cell in storyboard. I also created a subclass of UITableViewCell and linked the two together.
I the added two UILabel to the cell in storyboard and placed them where i wanted them to be and linked them to their coresponding outlets in teh subclass. Since the content of the labels varies I wanted to align the text vertically to the top. As I understand the only way to do this is by calling the sizeToFit method on the label. I execute this under in the sub class of UITableViewCell:
-(void)layoutSubviews {
[super layoutSubviews];
[self.detailTextLabel sizeToFit];
}
So far everything seems fine and the text in the detailTextLabel is aligned as it should. Although when i satrt interacting with the cell, for example slide my finger over it so the delete button appears, the detailTextLabel will change size to the size that was set in storyboard. This causes the text to be misaligned. Similar things happen when i select the cell and change to another view and the return to the table view via a tab bar
My question is: Is there any way of creating this custom cell differently using storyboard or is my only alterative to create everything programtically?
Regard, Christian
Maybe you should take a look at this if you still want to vertically align your text in your UILabel without sizeToFit (who will resize it when you will interact with your cell).
About your question, I think you can create your custom cell from a xib file like this.
Is it possible to implement a subview of a UITableViewCell on the left side of the cell that crossfades when the table enters the editing mode?
Another problem I face is that the bounds of the cell.textLabel are read-only. Is it possible to use some sort of inset for that label? (Because I, like mentioned above, want to use a View on the left side)
Edit: How do I perform an action (in this case fade a subview) when the whole table enters editingmode? (Not through a swipe over a cell). The reason why I want to implement this is because the tableview shows the "-" button on the left side of the cells if it is in editingmode. (I want to show my own button on the left side of the cells if editing=NO, fade it out if editing=YES and show it again if the tableView leaves editingmode (editing=NO))
A first thought directs me to something like this:
- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
[super setEditing:editing animated:animated];
if(editing) {
//fade out my own button
} else {
//show my own button
}
}
But I would have to loop through all the cells and I think this leads to a substantial performance worsening. What do you think?
You want to set the Editing Accessory View of a UITableViewCell. See the editingAccessoryView property for information on this. More information can be found in the Customizing Cells section of the TableView Programming Guide.
The label within the content view of a table view cell is read-only so you can not reassign it but its properties are mutable. You can actually move the label around within the bounds of the table view cell. It's probably confusing to grasp, but have a look at the Characteristics of Cell Objects section of the Table View Programming Guide. In it, the bounding boxes for each of the nested views are shown (not all of them are always visible). For your purposes, a good exercise would be to set the background color of each subview of a UITableViewCell to a different color and then try to adjust the sizes of them. Doing so and understanding what's going on will probably let you achieve the end-result that you desire.
In the end I created a custom UILabel that I used instead of the default UITableView textLabel and added a custom button on the left side. In the setEditing method I fade this button in/out.
I need an additional button next to the Delete button when in editing mode of UITableView Cells. Any suggestions for the purpose is appreciated. Thank You.
I would suggest you first subclass UITableViewCell. In the respective init method you create the button and add it to the contentView as a subview. Make the button hidden. After that you overwrite layoutSubviews and position the button on your content view by setting the frame property of the button. Then also subclass willTransitionToState: and check if the state is UITableViewCellStateShowingEditControlMask. If that's the case make the button visible. If not hide it.
Note: If you add an additional button to the UITableViewCell you also need to adjust the textLabel frame and other stuff to not overlap the button's rectangle.
cell.editingAccessoryType = UITableViewCellAccessoryCheckmark;
or some other value than "check"
or
cell.editingAccessoryView = [UIButton buttonWithType:UIButtonTypeInfoDark];
or with some other value than the info button, with it's target set to something appropriate
an accessory view trumps a type
I want to customize UITableViewCell by adding UILabel and two UIButton as its subview.
The cell style will be UITableViewCellStyleSubtitle and these three items would have to
next (on the left) of detailTextLabel.But when i do this, detailTextLabel overlaps with these items and display clipped or partial subviews.
Any way to handle out this without subclassing UITableViewCell if possible.
Thanks.
do you want to display something with detailTextLabel? If not you could try to hide it.
cell.detailTextLabel.hidden = YES;
otherwise you could add another Label at a better position which displays your detailText
I haved tried to create a view with a UIButton and a tableView Cell,
then I set the header view to be this view.
However,the cell in the header is not rounded-rect, besides,how to handle the cell's event,when user click this cell.
I haved tried to use custom cell also, but how to create a button and a shorter cell in a row?
when you select the cell,will not affect the button state?
thanks.
You can fake this in a number of ways. The simplest is to layout a rounded rectangle UIButton in your header, and turn off userInteraction for it so that it's just decorative.