This is actually a pretty simple question: Is there any way of making a group row's view on a view-based NSTableView float without making it also transparent?
use a custom cell that draws however you like - the floating is only placing the cell inside the table.
Normally the RowView draws the bg for all cells, the default ones dont draw any own background. that is what you have to do in your cell -- have it draw a bg on its own and not rely on the TableRowView
Related
I am making an OSX app, and for part of it, I am using NSTableView to simulate a "timeline", by putting in a really thin column and then setting the background color. It's fine, except for whatever reason the cell seems to be 1 pixel off whenever the background color changes. Anyone got any ideas? I don't have the reputation to post an image so here's the link: http://imgur.com/PrLdjIV
Thanks for reading this!
An NSTableCellView will not necessarily fill a row from edge to edge. Likewise, an NSTextField inside such a cell view will not necessarily fill it from edge to edge.
Implement -tableView:didAddRowView:forRow: in your table view delegate and set the row view's backgroundColor.
I have a simple app with a grouped UITableView. On the far left of each cell I have a thumbnail image and have manually created the top and bottom images to have curves to match the corners of the grouped table view.
This has worked well until iOS6. It appears the radius is slightly different which leaves me with gaps.
So that I can keep it looking consistent between iOS5 and 6, is there a way to alter the corner radius? I've tried altering the cell.backgroundView.layer.cornerRadius but it makes no difference.
Any help would be much appreciated!
Have you tried putting this after the cornerRadius?
cell.backgroundView.clipsToBounds = YES;
Setting this value to YES causes subviews to be clipped to the bounds of the receiver. If set to NO, subviews whose frames extend beyond the visible bounds of the receiver are not clipped. The default value is NO.
UIView Class Reference
I'm trying to achieve an effect wherein as a tableview is scrolling, the currently visible cells will animate according to where they are positioned on the screen. I'm somewhat new to IOS dev, so let me try to break it down:
Tableview loads with custom cells User begins scrolling While the
table is in motion, the visible cells have a UIView in which I would
like to perform an animation that corresponds directly to the cell's
current Y position on the screen.
Cells will ONLY animate when they
are visible
Cell animation directly corresponds to table motion, i.e.
whenever the table view scrolls, the cells are animating; once the
table stops, the animations pause
One solution I have thought of is to update drawRect every single frame when the tableview is moving. Depending on the graphic operations, this could be horrible performance wise. Is there a way to grab the current table position every time it changes? Would I be better suited to use Core Animation?
This might be helpful if you want to achieve something like below:
https://github.com/mrugrajsinh/AnimatedTableViewCellDemo
Make your view controllers the delegate of the UITableView, and use all the methods of scrollview Delegate also. There you have many controls for start scrolling and end scrolling, and within thpse controls you could check for uitableview cell positioning.
You have to become delegate to this: https://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UITableViewDelegate_Protocol/Reference/Reference.html
and this is the method to override and animate your cells:
– tableView:willDisplayCell:forRowAtIndexPath:
I want to customize my NSTableView. My overall requirements are like this:
Each row will have one image and some text; images and text could be different.
Some cells might not have an image.
Row height is dependent upon some external factor.
A cell shouldn't draw the background, it should show the NSTableView background.
So far I am able to draw transparent cells with some text. I Googled and found out I need to customize each cell. Now I have this question: should I maintain two columns or should one column be okay, having one image on the left hand side and text adjacent to that?
I also understand that I need to override two methods:
- (void) drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
So for each cell, I need to draw/construct the cell -- can anyone guide me? Am I going in the right direction? Can I achieve a transparent background with dynamic height with the above approach?
Each row will have one image and some text,
So, two columns—one with an image cell, the other with a text field cell.
images and text could be different,
I should hope so.
Some cell might not have the Image,
Not a problem.
Row height is depend upon some external factor,
Be the table view's delegate, and it will ask you what the row's height should be.
Cell shouldn't draw the background,
It won't unless you set it to do so.
it should overall it should show the NSTableView background,
The table view will draw its own background anyway, which you can set in IB's Inspector. If you wanted the table view to not draw a background, you would set its background colors to the clear color.
You don't need a custom cell for any of this.
Is there a simple way of animating rows in an NSTableView?
I'd like to be able to do something like flash a row, or fade out a row.
Essentially - to provide a bit of visual feedback when rows are added or removed.
Edited to add:
I'd had a quick look over Google before posting this; but I wanted to know if there was some way to do this that I'd missed other than drawing and animating parts of the table view myself.
To flash a row, there are a number of ways to go. You could just grab a cell and play with it's view, such as change the color of the background or font colors. You could also just select the cell and deselect it a few times, if you don't care about removing the existing selection from another cell. Or you could superimpose another view on top of the cell's view and use blend modes...
For animating the deletion, you could do the same as above, dimming the cell, or even move the view up and out, transform it so it shrinks down and move it over to a trash can and shrink it all the way down as it enters the trash. Then after the animation is done, you delete the row.