i hope you will find a solution for my problem, cause i don't have any ideas anymore.
I have a tableview, which has several cells. some cells have another view as subview on their contentView.
This additional view has 2 subviews: 1 UIImageView and 1 UILabel.
Now when i tap an UIButton the UIImageView should be hidden/removed and the UILabel changes it's textColor to white(black before).
The UILabel changes it's textColor but the UIImageView is still visible, even after removing the UIImageView from it's superview.
The Code looks like this.
_adsc_dot_view is the UIImageView
_adsc_text_label is the UILabel
- (void)mc_set_selected:(BOOL)selected {
if (selected) {
_adsc_dot_view.hidden = YES;
_adsc_text_label.textColor = [UIColor whiteColor];
}
else {
_adsc_dot_view.hidden = NO;
_adsc_text_label.textColor = [UIColor blackColor];
}
}
Some check you might find useful for this issue:
1) make sure you create once your UIImageView which referenced as _adsc_dot_view
2) do a debug, mark mc_set_selected with a breakpoint and in the log check the view hierarchy, whether you have the needed number of UIImageView and not more
po [[UIWindow keyWindow] recursiveDescription]
or check this advanced SO answer: I need to inspect the view hierarchy on an iPhone program
3) if you use Interface Builder make sure you have proper type (and not UIImage) and proper reference
You are using UITableView and you add UIImageView and UILabel as a subview in UITableViewCell. So, I think you should reload UITabeView using [self.tableView reloadData]; or [YourTableName reloadData]; after your hide and show UIImageView method. Otherwise you should hide and show UIImageView using UIImageView tag or using UITableViewCell index path.
is the target device on iOS 7? If yes then do try to layoutsubviews of the cell. I had a similar issue where the cell wasn't refreshing on ios 7.
Just reload table view cell after Remove/Hide ImageView.
Related
I have the following code in viewDidLoad on my ViewController:
self.navigationController.navigationBar.tintColor = [UIColor colorWithRed:204.0/255 green:00.0/255 blue:00.0/255 alpha:1];
self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"background.png"]];
autoNameLabel.text = (NSString *)[vendorDetails objectForKey:#"autoname"];
homeLabel.text = (NSString *)[vendorDetails objectForKey:#"homelab"];
descriptionTextView.text = (NSString *)[vendorDetails objectForKey:#"description"];
This all fits perfectly on the view. I know need to add an additional textView on the bottom so need the user to be able to scroll to see it. How can I add this info to a scrollable view and add my additional textView?
you could have your UIViewController extend UISCrollViewController. Or you could add a UIScrollView to your view controller's view in the method viewDidLoad. Then add all subviews of your view to the scrollview instead.
self.scrollView = [[UIScrollView all] initWithFrame:self.view.bounds]
self.scrollView.contentSize = CGSizeMake(self.scrollView.bounds.width, HEIGHT_OF_SCROLLABLE_AREA).
I would also do something like this for the scroll view height if your last textview is named lastTextView
HEIGHT_OF_SCROLLABLE_AREA = CGRectGetMaxY(lastTextView.frame + bottomPadding)
Are you sure you dragged all the other views on the scrollview? Make sure the contentSize of the scrollview is high enough(you know, higher than the screen) to scroll.
have u set delegate of UIScrollView. if you have not set delegate of UIScrollView then also it may possible that your scroll is not working.
I would like to achieve a similar effect:
http://imageshack.us/m/695/3715/img0419s.png
My initial idea was to create something like presentend in this schema http://imageshack.us/m/9/9227/img0413.png. Ie a ViewController with 2 subviews: a classical one with some information, and a tableView below which should scroll over the previous view.
But I realized that dividing the main view this way couldn't allow my tableview to scroll over the first view.
So I'm asking how this effect is possible. Maybe by setting a transparent header ?
Thanks for your help
Following the teriiehina's advise, here is how I dit it :
In my UITableViewController, I set a 50px contentInset and a transparent color to my tableView.
self.tableView.backgroundColor = [UIColor clearColor];
self.tableView.contentInset = UIEdgeInsetsMake(50,0,0,0);
I added an additional view on the top of the view (same size than the contentInset)
TTView *test = [[TTView alloc] init];
test.frame = CGRectMake(0, 0, 320, 50);
test.backgroundColor = [UIColor grayColor];
[self.view addSubview:test];
Finally, in order to let my tableview scroll over the additional view, I brought it in the front
[self.view bringSubviewToFront:self.tableView];
Now I just have to set a custom color for my cells.
A dirty trick here:
Add the UIView that contains the name first
Add a UIScrollView with clipBounds = NO. That view will contain the message.
That should work for you
I think you can achieve this effect using the contentInset property of the UITableView (which is a UIScrollView subclass) and presenting the tableView at first with a programmatic scroll.
In my app, I have a table view that has about eight cells. There is a navigation bar at the top. When a user touches a cell, nothing happens for about 1/2 second. Then the touched cell highlights blue and immediately the new view slides into position.
The problem is that there is no feedback to the user about which cell he touched until just before the new view slides into position.
For example, when I explore the tables in the iPhone's Settings application, when you touch a cell, the cell immediately turns blue, and then there is a 1/2 second delay, and then you see the new view.
How do I get my table's feedback of highlighting the cells to happen immediately? I am using tableView didSelectRowAtIndexPath:, and each cell has an accessory button.
Thanks for any insight.
are you using a custom-drawn cell (with a drawRect override) or something like that?
if you have a custom drawRect method, you'll need to do something like this (based off the code for tweetie, found here):
//default colors for cell
UIColor *backgroundColor = [UIColor whiteColor];
UIColor *textColor = [UIColor blackColor];
//on highlight, swap colors
if(self.highlighted){
backgroundColor = [UIColor clearColor];
textColor = [UIColor whiteColor];
}
that should give you the default behavior.
It sounds like the screen is refreshing after the new slide has been processed. You need to refresh the screen before rendering the new slide view.
a few things:
it's probably best to have a property in beforeViewController so it can set its own title on load (instead of setting it from the parent class).
second, why are you setting the back button for the current class? youre also leaking that (you alloc the UIBarButtonItem but dont release it).
NewViewController *newViewController = [[[NewViewController alloc]
initWithNibName:#"New" bundle:nil] autorelease];
newViewController.name = [self.listData objectAtIndex:indexPath.row];
[self.navigationController pushViewController:beforeAfterViewController animated:YES];
then in NewViewController, you have
- (void) viewDidLoad{
self.title = self.name;
}
re: your secondary question: if you pop the child controller using [self.navigationController popViewControllerAnimated:YES], the parent view should auto-deselect the row that was previously selected. it shoulnt stay selected unless you are forcing it to stay that way.
you don't need to do anything like [self.tableView deselectRowAtIndexPath:] unless you are not pushing child views (and doing something like checkmarking a cell that the user tapped).
You may put these 2 lines of code at the beginning of the didSelectRowAtIndexPath method:
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
[cell setSelected:YES animated:YES];
it should first highlight the cell before processing other program logic.
How can I set the background of UITableView (the tableview style is "Grouped") to use an image?
In newer versions of the SDK, you'll need to set tableView.backgroundView if you want it to be transparent, try something like this:
tableView.backgroundColor = [UIColor clearColor];
tableView.opaque = NO;
tableView.backgroundView = nil;
We need to do something about that plain background. We're going to use a PNG image and display it behind the UITableView.
Prepare a PNG image. It should be either 320x460 (if you have the status bar visible in your app) or 320x480 (if you hide it).
Drag it into XCode into the Resources folder and add to your project
Load the NIB file containing your UITableView into Interface Builder
Open the library (Tools> Library), switch to the Media tab, and drag the image to the View, create a new UIImageView.
Use the inspector to move and resize the image so it's at X=0, Y=0, Width=320, Height=480
Put the UIImageView behind the UITableView (Layout > Send to Back)
Save, Build and Go!
Disappointingly, you won't be able to see your background. The UITableView's background is blocking us from seeing the UIImageView. There are three changes you need to make:
In the Attributes Inspector, make sure the UITableView's "opaque" checkbox is unchecked!
Set the UITableView's background color to transparent:
tableView.backgroundColor = [UIColor clearColor];
I hope this helps and solves your problem. It has worked for me and I have yet to find a more elegant way to display a background image for a UITableView.
The advantage of my solution, in comparison with setting a background image directly on the UITableView, is that you can indent the table's content. I often wanted to do this to just show two or three table cells at the bottom of the screen.
[tableView setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"whatever.png"]]];
tableView.backgroundView = nil;
is enough. No need to set background color as Clear Color.
One way would be to make the table view transparent (set the view's background to 0% opacity) and place a UIImageView behind the UITableView. Remember that transparent tables and table cells will not perform as well as opaque ones.
In UI Builder the Background color has an "Other" choice.
This brings up a color picker.
The color picker has an opacity setting.
If you set the Opacity of the COLOR to 0 it works, can't speak to performance.
What I've found is that you have to use a "plain" styled table with a transparent background and then recreate the look of the rounded-corner cells by setting each cell's backgroundView to a UIImageView with a image that simulates the rounded look. This means that the top, bottom, and middle cells need different background images.
However, this does not address what happens when the user taps the cell and it goes "highlighted" - it will look squared off then. You can get around this by setting the highlighted image for your faked tablecell background image. You will also want to create your own disclosure accessory view (ImageView) with a white highlighted version. Then you can create a cell like this one I'm using (below). After I alloc one of these cells I then set the backgroundView and accessoryView to my UIImageViews.
#import "ClearBackRoundedTableCell.h"
#implementation ClearBackRoundedTableCell
- (id)initWithReuseIdentifier:(NSString *)reuseIdentifier
{
if (self = [super initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseIdentifier]) {
}
return self;
}
- (void)setHighlighted:(BOOL)highlighted animated:(BOOL)animated
{
if( [[self.accessoryView class] isSubclassOfClass:[UIImageView class]] )
((UIImageView *)self.accessoryView).highlighted = highlighted;
if( [[self.backgroundView class] isSubclassOfClass:[UIImageView class]] )
((UIImageView *)self.backgroundView).highlighted = highlighted;
self.textLabel.highlighted = highlighted;
}
#end
One note if you go this route: the cells in a grouped table are typically 300 px wide (in portrait mode) but your plain table here would need to be 302 wide to allow for the grey line on each side of the table, which is normally outside of the "content" of the table cell.
After spending a while with color picker, I found out that you need to specify opaque background not for the table view cell xib, but for the Table View where the cells will be located, which is another xib. From what I have seen, table view cell background attributes have no visual effect.
try this one
UIView *backView = [[[UIView alloc] initWithFrame:CGRectZero] autorelease];
backView.backgroundColor = [UIColor clearColor];
cell.backgroundView = backView;
It worked for me in grouped tableview.
Make UITableview background as clear color.
Programmatically you can do it like this if your image is added into your resources:
self.tableView.backgroundColor = [UIColor clearColor];
self.tableView.opaque = NO;
UIImage *backroundImage = [UIImage imageNamed:#"my_backround"];
UIImageView *backroundImageView = [[UIImageView alloc] initWithImage:backroundImage];
Else you can do it in Interface Builder with this style :
You may need to configure the header files interface from UITableViewController to UIViewController and add <UITableViewDataSource,UITableViewDelegate> ,also don't forget to set the attributes of the tableview to not be opaque and reconnect the tableviews datasource and delegate outlets to the viewcontroller.
I am using a UITableViewController which uploads a table. I have a Nib File with UITableView in it.Now I want to set the background of the tableView either from interface builder or from the TableViewController to an image.
How to do that.
OK so I created an UIImage in my controller. Now when I add where do I need to add it.
When I try adding it and set the color of tableView to clearColor, it just shows me the Image and not the table although I make sure that image is being sent to back of all views.
Guys Please note that I am not dealing a UIView and adding a tableView as its subview But I am dealing with a UITableView .
Place a UIImageView behind the UITableView, then do this:
tableView.backgroundColor = [UIColor clearColor];
Somehow playing around I was able to find out a way.
self.tableView.backgroundColor = [UIColor clearColor];
self.parentViewController.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageWithData:imageData]];
self.tableView.backgroundColor = [UIColor clearColor];
self.parentViewController.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"parentViewBackground.png"]];
the image size should be
2x - 640*960
1x - 320*480
the size smaller than above, it will be tiled.
The backgroundColor = [UIColor colorWithPatternImage: image] method rkbang outlines works great. Here is another method to achieve the same effect by adding a new view to the parentViewController. This would be useful if you want to mask other contents the parentViewController might have.
In your UITableViewController subclass, in -viewDidLoad insert:
//make a cool background image
self.tableView.backgroundColor = [UIColor clearColor];
UIImage *patternImage = [UIImage imageNamed:#"backgroundImage.png"];
UIImageView * backgroundImageView = [[UIImageView alloc] initWithImage:patternImage];
[self.parentViewController.view addSubview:backgroundImageView];
[self.parentViewController.view sendSubviewToBack:backgroundImageView];
//release the background image and image view (the backgroundImageView is still retained by the parentViewController)
[patternImage release];
[backgroundImageView release];
You may wish to keep track of the backgroundImageView so you can remove it or replace it. The code example above leaves it to the parentViewController to manage the new view. If you're loading and unloading this UITableView, you'll be leaking these UIImageViews with every load unless the parentViewController is releasing them at the same rate somehow.
What you can do is set the backgroundColor property of the tableview to [UIColor clearColor] and have a UIImageView of the same size and position underneath your TableView to show your background.
TableView properties include background color. Set this to clearColor; and put the image behind it. (In IB I think you'll have to delete the tableview add an image and then add your tableview back again)
if you're subclassing UITableViewController you get a tableview for free, no ivar or nib required, however since you're using a background I would stick with IB.
You can use the table-view's backgroundView. This worked for me.
[self.tableView setBackgroundView: [[UIImageView alloc] initWithImage: [UIImage imageNamed:#"????.png"]]];
where ????.png is your background image.