I found on this forum a method that can create a border from ether side of a view, with I applying on my labels in my cell when it created in cellForRowAtIndexPath
the problem is when i select the cell the lines I created are gone, when I deselect the cell I can see the line again.
I had an issue when the cell is selected the labels text color in the cell get change to white but u fixed this with the method setSelected , with help me save cell labels colors before it selected. the problem is it dosent work the same way
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
[self saveTextColors];
[self saveLeftBoarders];
}
- (void)saveLeftBoarders {
[self addLeftBorderWithColor:[UIColor grayColor] Width:1.0 andView:amountV];
[self addLeftBorderWithColor:[UIColor grayColor] Width:1.0 andView:amountPay];
[self addLeftBorderWithColor:[UIColor grayColor] Width:1.0 andView:date];
[self addLeftBorderWithColor:[UIColor grayColor] Width:1.0 andView:month];
}
- (void)saveTextColors {
UIColor *leftPayColor = self.leftPay.textColor;
UIColor *amountVColor = self.amountV.textColor;
UIColor *monthColor = self.month.textColor;
UIColor *amountPayColor = self.amountPay.textColor;
UIColor *dateColor = self.date.textColor;
self.leftPay.highlightedTextColor = leftPayColor;
self.amountV.highlightedTextColor = amountVColor;
self.month.highlightedTextColor = monthColor;
self.amountPay.highlightedTextColor = amountPayColor;
self.date.highlightedTextColor = dateColor;
}
- (void)addLeftBorderWithColor:(UIColor *)color Width:(CGFloat) borderWidth andView:(UIView *)view {
UIView *border = [UIView new];
border.backgroundColor = color;
border.frame = CGRectMake(0, 0, borderWidth, view.frame.size.height);
[border setAutoresizingMask:UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleRightMargin];
[view addSubview:border];
}
this code is from the cell.m
in the method cellForRowAtIndexPath I run the same method to create the border line.
as I type this question I saw in the debugView that this creates a problem of creating that border over and over again but is still not visible,
after deleting the border creation in the cell.m I saw in the debug view hierarchy that the border is there ( from it creation in cellForRowAtIndexPath) but it not visible.
what is the problem ?
Related
I have added UIView to cell of Tableview and given the beizer path to bottom and right by following:
UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRect:CGRectMake(0,
0,
cell.bgView.frame.size.width -2+ shadowSize,
cell.bgView.frame.size.height+1 + shadowSize)];
cell.bgView.layer.masksToBounds = NO;
cell.bgView.layer.shadowColor = [[UIColor colorWithRed:186.0/255.0 green:0.0/255.0 blue:231.0/255.0 alpha:1.0f]CGColor];
cell.bgView.layer.shadowOffset = CGSizeMake(0.0f, 0.0f);
cell.bgView.layer.shadowOpacity = 0.7f;
cell.bgView.layer.shadowPath = shadowPath.CGPath;
First time, when tableview reload, bezier path doesn't load properly
but when I scroll up/down then it looks perfectly
.
I have tried with every possible solution i.e.
dispatch_async(dispatch_get_main_queue(), ^{
[self.topRatedTable reloadData];
});
or
[cell layoutIfNeeded];
[cell updateConstraintsIfNeeded];
But nothing works.
Your cell and its subviews (like, I assume, bgView) don't have their final frames until layout has run. If your path-creating code is in your tableView:cellForRowAtIndexPath: method, then you are accessing cell.bgView.frame before layout has run.
In your custom UITableViewCell subclass, override layoutSubviews and set the shadowPath after calling super:
// In your custom `UITableViewCell` subclass:
- (void)layoutSubviews {
[super layoutSubviews];
UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRect:CGRectMake(0,
0,
cell.bgView.frame.size.width -2+ shadowSize,
cell.bgView.frame.size.height+1 + shadowSize)];
self.bgView.layer.shadowPath = shadowPath.CGPath;
}
Use this:
override func draw(_ rect: CGRect) {
super.draw(rect)
// UIBezierPath job
}
EDIT #2
It seems based on the responses I've gotten that I'm confusing people (and subsequently myself). So let's try to simplify this question some -
I wish to give all TextFields in a given ViewController the following:
textField.layer.cornerRadius=8.0f;
textField.layer.masksToBounds=YES;
[[textField layer] setBorderColor:[[UIColor colorWithRed:171.0/255.0 green:171.0/255.0 blue:171.0/255.0 alpha:1.0] CGColor]];
textField.layer.borderWidth= 1.0f;
Where should I implement this and how so that it does not give me errors for the layer property (ie when I try to do this in or after -(void)viewDidLoad I get an error for every line stating that "Property 'layer' not found on object of type ViewController"?
EDIT #1
Full section of subclass code to assist in identifying the issue:
#interface InputTextField : UITextField
#end
#implementation InputTextField
- (CGRect)textRectForBounds:(CGRect)bounds {
int margin = 5;
CGRect inset = CGRectMake(bounds.origin.x + margin, bounds.origin.y, bounds.size.width - margin, bounds.size.height);
return inset;
}
- (CGRect)editingRectForBounds:(CGRect)bounds {
int margin = 5;
CGRect inset = CGRectMake(bounds.origin.x + margin, bounds.origin.y, bounds.size.width - margin, bounds.size.height);
return inset;
InputTextField *textField=[[InputTextField alloc]init];
textField.layer.cornerRadius=8.0f;
textField.layer.masksToBounds=YES;
[[textField layer] setBorderColor:[[UIColor colorWithRed:171.0/255.0 green:171.0/255.0 blue:171.0/255.0 alpha:1.0] CGColor]];
textField.layer.borderWidth= 1.0f;
}
#end
ORIGINAL POST
I'm having an issue changing the Border Style and Color of a range of Text Fields within a particular View Controller. I have a bunch of Text Fields in a view that I want to adjust. They all have been given the custom class 'InputTextField'. However the solutions brought up in this thread: UITextField border color do not solve my issue.
Here's the Style and Color I'd like to achieve:
textField.layer.cornerRadius=8.0f;
textField.layer.masksToBounds=YES;
[[textField layer] setBorderColor:[[UIColor colorWithRed:171.0/255.0 green:171.0/255.0 blue:171.0/255.0 alpha:1.0] CGColor]];
textField.layer.borderWidth= 1.0f;
I've also imported QuartzCore/QuartzCore.h. I want to set this so every TextField in my app with the custom class InputTextField will appear with this background. At this point, whenever I run this in the app, the fields all take the background value I've set in Storyboards (currently No Border).
Thanks for the assistance!
You are instantiating an InputTextField inside a method that just asking you a CGRect to draw a rectangle, that already doesn't make much sense but the code will never get called anyway since it's located after the return statement.
If you want all your InputTextField to look a specific way set the layer when the InputTextField is instantiated.
Using storyboards that would look like :
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
self.layer.cornerRadius=8.0f;
self.layer.masksToBounds=YES;
[self.layer setBorderColor:[[UIColor colorWithRed:171.0/255.0 green:171.0/255.0 blue:171.0/255.0 alpha:1.0] CGColor]];
self.layer.borderWidth= 1.0f;
}
return self;
}
The problem is here:
- (CGRect)editingRectForBounds:(CGRect)bounds {
after
return inset;
nothing gets called. Move your code above return.
EDIT #1
Add this to your subclass:
- (void)layoutSubviews {
CALayer *layer = self.layer;
layer.cornerRadius = 8;
layer.borderWidth = 1;
layer.borderColor = [UIColor colorWithRed:171.0/255.0 green:171.0/255.0 blue:171.0/255.0 alpha:1.0].CGColor;
[super layoutSubviews];
}
I am creating a UITableView with custom UITableViewCells. iOS 7's new delete button is causing some problems with the layout of my cell.
If I use the "Edit" button, which makes the red circles appear I get the problem, but if I swipe a single cell it looks perfect.
This is when the Edit button is used:
[self.tableView setEditing:!self.tableView.editing animated:YES];
This is when I swipe a single cell:
As you can se my labels overlaps the delete button in the first example. Why does it do this and how can I fix it?
try using the accessoryView and editingAccessoryView properties of your UITableViewCell, instead of adding the view yourself.
If you want the same indicator displayed in both editing and none-editing mode, try setting both view properties to point at the same view in your uiTableViewCell like:
self.accessoryView = self.imgPushEnabled;
self.editingAccessoryView = self.imgPushEnabled;
There seems to be a glitch in the table editing animation in IOS7, giving an overlap of the delete button and the accessoryView when switching back to non-editing state. This seems to happen when the accesoryView is specified and the editingAccessoryView is nil.
A workaround for this glitch, seems to be specifying an invisible editingAccessoryView like:
self.editingAccessoryView =[[UIView alloc] init];
self.editingAccessoryView.backgroundColor = [UIColor clearColor];
The problem is that in edit mode the cell's contentView changes in size. So either you have to override layoutSubviews in your cell and support the different frame sizes
- (void) layoutSubviews
{
[super layoutSubviews];
CGRect contentFrame = self.contentView.frame;
// adjust to the contentView frame
...
}
or you take the bait and switch to autolayout.
First I thought setting contentView.clipsToBounds to YES could be an ugly workaround but that does not seem to work.
I've resolved this problem with set up constraints without width only leading and trailing
As tcurdt mentioned, you could switch to autolayout to solve this issue. But, if you (understandably) don't want to mess with autolayout just for this one instance, you can set the autoresizingMask and have that turned automatically into the appropriate autolayout constraints.
label.autoresizingMask = UIViewAutoresizingFlexibleWidth;
Just use this method in your custom TableViewCell class you can get the perfect answer,
Here self is UITableviewCell
- (void)layoutSubviews {
[super layoutSubviews];
for (UIView *subview in self.subviews) {
for (UIView *subview2 in subview.subviews) {
if ([NSStringFromClass([subview2 class]) isEqualToString:#"UITableViewCellDeleteConfirmationView"]) { // move delete confirmation view
[subview bringSubviewToFront:subview2];
}
}
}
}
And if any one want to adjust the Delete Button Size, Use the following Code
- (void)layoutSubviews {
[super layoutSubviews];
for (UIView *subview in self.subviews) {
for (UIView *subview2 in subview.subviews) {
if ([NSStringFromClass([subview2 class]) isEqualToString:#"UITableViewCellDeleteConfirmationView"]) { // move delete confirmation view
CGRect rect = subview2.frame;
rect.size.height = 47; //adjusting the view height
subview2.frame = rect;
for (UIButton *btn in [subview2 subviews]) {
if ([NSStringFromClass([btn class]) isEqualToString:#"UITableViewCellDeleteConfirmationButton"]) { // adjusting the Button height
rect = btn.frame;
rect.size.height = CGRectGetHeight(subview2.frame);
btn.frame = rect;
break;
}
}
[subview bringSubviewToFront:subview2];
}
}
}
}
Best way to remove this problem is that add an image in cell and set it in Backside.
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"bgImg.png"]];
imageView.frame = CGRectMake(0, 0, 320, yourCustomCell.frame.size.height);
[yourCustomCell addSubview:imageView];
[yourCustomCell sendSubviewToBack:imageView];
If your text would overlap the delete button then implement Autolayout. It'll manage it in better way.
One more case can be generate that is cellSelectionStyle would highlight with default color. You can set highlight color as follows
yourCustomCell.selectionStyle = UITableViewCellSelectionStyleNone;
Set your table cell's selection style to UITableViewCellSelectionStyleNone. This will remove the blue background highlighting or other. Then, to make the text label or contentview highlighting work the way you want, use this method in yourCustomCell.m class.
- (void)setHighlighted:(BOOL)highlighted animated:(BOOL)animated
{
if (highlighted)
self.contentView.backgroundColor = [UIColor greenColor];
else
self.contentView.backgroundColor = [UIColor clearColor];
}
I hope you understand it in a better way.
Bringing to front UITableViewCellDeleteConfirmationView in the layoutSubviews of the custom cell works for me on iPhone, but not on iPad.
I have a UITableView in the master part of a splitViewController for the iPad, and in this case
the frame of the UITableViewCellDeleteConfirmationView is (768 0; 89 44), instead of (320 0; 89 44)
So I resize the frame in the layoutSubviews method and this works for me
- (void)layoutSubviews {
[super layoutSubviews];
for (UIView *subview in self.subviews)
{
for (UIView *subview2 in subview.subviews)
{
if ([NSStringFromClass([subview2 class]) isEqualToString:#"UITableViewCellDeleteConfirmationView"])
{
CGRect frame = subview2.frame;
frame.origin.x = 320;
subview2.frame = frame;
[subview bringSubviewToFront:subview2];
}
}
}
}
If you are putting content in the UITableViewCell's contentView, be sure you use self.contentView.frame.size.width and not self.frame.size.width in layoutSubviews.
self.frame expands width in editing mode, and will cause any content on the right to extend past the bounds of the contentView. self.contentView.frame stays at the correct width (and is what you should be using).
Try this: Might be you are setting cell setBackgroundImage in cellForRowAtIndexPath (Delegate Method). Do not set this here. Set your image in:
-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath { cell.backgroundColor=[UIColor colorWithPatternImage:[UIImage imageNamed:#"cellList.png"]]; }
Enjoy Coding.
My solution is to move whole contentView to the left when Delete button showing:
override func layoutSubviews() {
super.layoutSubviews()
if editingStyle == UITableViewCellEditingStyle.Delete {
var rect = contentView.frame
rect.origin.x = self.showingDeleteConfirmation ? -15 : 38
contentView.frame = rect
}
}
What I'm trying to do
I'm trying to add edit-in-place functionality to the Connection Kit's NSBrowser. I'd like this behaviour to be functionally and visually similar to Finder's implementation.
The visual effect I'm aiming for
What I've got so far
The arrows indicate focus ring & cell highlighting in Finder's implementation, and the lack of it in mine.
I have tried
Setting the background colour of the cell in the controller, in it's drawInteriorWithFrame method
The same for the field editor
setFocusRingType:NSFocusRingTypeDefault for the field editor & cell both in the controller & the draw method
Manually drawing the highlight color in the draw method
Various combinations of the above, and undoubtedly some I've forgotten.
The best I've managed was getting the area surrounding the cell's image coloured with the highlight colour.
Is there some fundamental that I'm missing here? Could someone please suggest a starting point for approaching this? Is drawInteriorWithFrame the place to be doing this?
I've got editing working fine - I'm just having trouble with the visual aspects.
Code to allow editing:
// In the main controller
int selectedColumn = [browser selectedColumn];
int selectedRow = [browser selectedRowInColumn:selectedColumn];
NSMatrix *theMatrix = [browser matrixInColumn:selectedColumn];
NSRect cellFrame = [theMatrix cellFrameAtRow:selectedRow column:0];
NSText *fieldEditor = [[browser window] fieldEditor:YES
forObject:editingCell];
[cell editWithFrame:cellFrame
inView:theMatrix
editor:fieldEditor
delegate:self
event:nil];
And in my subclass of NSBrowserCell:
- (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView *)controlView {
image = [[self representedObject] iconWithSize:[self imageSize]];
[self setImage:image];
NSRect imageFrame, highlightRect, textFrame;
// Divide the cell into 2 parts, the image part (on the left) and the text part.
NSDivideRect(cellFrame, &imageFrame, &textFrame, ICON_INSET_HORIZ + ICON_TEXT_SPACING + [self imageSize].width, NSMinXEdge);
imageFrame.origin.x += ICON_INSET_HORIZ;
imageFrame.size = [self imageSize];
[super drawInteriorWithFrame:cellFrame inView:controlView];
}
- (void)editWithFrame:(NSRect)aRect inView:(NSView *)controlView editor:(NSText *)textObj delegate:(id)anObject event:(NSEvent *)theEvent {
NSRect imageRect, textRect;
NSDivideRect(aRect , &imageRect, &textRect, 20, NSMinXEdge);
self.editing = YES;
[super editWithFrame: textRect inView: controlView editor:textObj delegate:anObject event:theEvent];
}
You have to draw the focus ring yourself.
Add the following in drawWithFrame in your NSBrowserCell subclass
[NSGraphicsContext saveGraphicsState];
[[controlView superview] lockFocus];
NSSetFocusRingStyle(NSFocusRingAbove);
[[NSBezierPath bezierPathWithRect:NSInsetRect(frame,-1,-1)] fill];
[[controlView superview] unlockFocus];
[NSGraphicsContext restoreGraphicsState];
Try subclassing field editor object and override drawRect function like this :
- (void)drawRect:(NSRect)rect {
[super drawRect:rect];
NSSetFocusRingStyle(NSFocusRingOnly);
NSRectFill([self bounds]);
}
Hope this helps.
My current project's UITableViewCell behavior is baffling me. I have a fairly straightforward subclass of UITableViewCell. It adds a few extra elements to the base view (via [self.contentView addSubview:...] and sets background colors on the elements to have them look like black and grey rectangular boxes.
Because the background of the entire table has this concrete-like texture image, each cell's background needs to be transparent, even when selected, but in that case it should darken a bit. I've set a custom semi-transparent selected background to achieve this effect:
UIView *background = [[[UIView alloc] initWithFrame:self.bounds] autorelease];
background.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.6];
background.opaque = NO;
[self setSelectedBackgroundView:background];
And although that yields the right look for the background, a weird side effect happens when I select the cell; all other backgrounds are somehow turnt off. Here's a screenshot. The bottom cell looks like it should and is not selected. The top cell is selected, but it should display the black and grey rectangular areas, yet they are gone!
Who knows what's going on here and even more important: how can I correct this?
What is happening is that each subview inside the TableViewCell will receive the setSelected and setHighlighted methods. The setSelected method will remove background colors but if you set it for the selected state it will be corrected.
For example if those are UILabels added as subviews in your customized cell, then you can add this to the setSelected method of your TableViewCell implementation code:
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
self.textLabel.backgroundColor = [UIColor blackColor];
}
where self.textLabel would be whatever those labels are that are shown in the picture above
I'm not sure where your adding your selected view, I usually add it in the setSelected method.
Alternatively, you can subclass the UILabel and override the setHighlighted method like so:
-(void)setHighlighted:(BOOL)highlighted
{
[self setBackgroundColor:[UIColor blackColor]];
}
The cell highlighting process can seem complex and confusing if you don't know whats going on. I was thoroughly confused and did some extensive experimentation. Here's the notes on my findings that may help somebody (if anyone has anything to add to this or refute then please comment and I will endeavour to confirm and update)
In the normal “not selected” state
The contentView (whats in your XIB unless you coded it otherwise) is drawn normally
The selectedBackgroundView is HIDDEN
The backgroundView is visible (so provided your contentView is transparent you see the backgroundView or (if you have not defined a backgroundView you'll see the background colour of the UITableView itself)
A cell is selected, the following occurs immediately with-OUT any animation:
All views/subviews within the contentView have their backgroundColor cleared (or set to transparent), label etc text color's change to their selected colour
The selectedBackgroundView becomes visible (this view is always the full size of the cell (a custom frame is ignored, use a subview if you need to). Also note the backgroundColor of subViews are not displayed for some reason, perhaps they're set transparent like the contentView). If you didn't define a selectedBackgroundView then Cocoa will create/insert the blue (or gray) gradient background and display this for you)
The backgroundView is unchanged
When the cell is deselected, an animation to remove the highlighting starts:
The selectedBackgroundView alpha property is animated from 1.0 (fully opaque) to 0.0 (fully transparent).
The backgroundView is again unchanged (so the animation looks like a crossfade between selectedBackgroundView and backgroundView)
ONLY ONCE the animation has finished does the contentView get redrawn in the "not-selected" state and its subview backgroundColor's become visible again (this can cause your animation to look horrible so it is advisable that you don't use UIView.backgroundColor in your contentView)
CONCLUSIONS:
If you need a backgroundColor to persist through out the highlight animation, don't use the backgroundColor property of UIView instead you can try (probably with-in tableview:cellForRowAtIndexPath:):
A CALayer with a background color:
UIColor *bgColor = [UIColor greenColor];
CALayer* layer = [CALayer layer];
layer.frame = viewThatRequiresBGColor.bounds;
layer.backgroundColor = bgColor.CGColor;
[cell.viewThatRequiresBGColor.layer addSublayer:layer];
or a CAGradientLayer:
UIColor *startColor = [UIColor redColor];
UIColor *endColor = [UIColor purpleColor];
CAGradientLayer* gradientLayer = [CAGradientLayer layer];
gradientLayer.frame = viewThatRequiresBGColor.bounds;
gradientLayer.colors = #[(id)startColor.CGColor, (id)endColor.CGColor];
gradientLayer.locations = #[[NSNumber numberWithFloat:0],[NSNumber numberWithFloat:1]];
[cell.viewThatRequiresBGColor.layer addSublayer:gradientLayer];
I've also used a CALayer.border technique to provide a custom UITableView seperator:
// We have to use the borderColor/Width as opposed to just setting the
// backgroundColor else the view becomes transparent and disappears during
// the cell's selected/highlighted animation
UIView *separatorView = [[UIView alloc] initWithFrame:CGRectMake(0, 43, 1024, 1)];
separatorView.layer.borderColor = [UIColor redColor].CGColor;
separatorView.layer.borderWidth = 1.0;
[cell.contentView addSubview:separatorView];
When you start dragging a UITableViewCell, it calls setBackgroundColor: on its subviews with a 0-alpha color. I worked around this by subclassing UIView and overriding setBackgroundColor: to ignore requests with 0-alpha colors. It feels hacky, but it's cleaner than any of the other solutions I've come across.
#implementation NonDisappearingView
-(void)setBackgroundColor:(UIColor *)backgroundColor {
CGFloat alpha = CGColorGetAlpha(backgroundColor.CGColor);
if (alpha != 0) {
[super setBackgroundColor:backgroundColor];
}
}
#end
Then, I add a NonDisappearingView to my cell and add other subviews to it:
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellIdentifier = #"cell";
UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier] autorelease];
UIView *background = [cell viewWithTag:backgroundTag];
if (background == nil) {
background = [[NonDisappearingView alloc] initWithFrame:backgroundFrame];
background.tag = backgroundTag;
background.backgroundColor = backgroundColor;
[cell addSubview:background];
}
// add other views as subviews of background
...
}
return cell;
}
Alternatively, you could make cell.contentView an instance of NonDisappearingView.
My solution is saving the backgroundColor and restoring it after the super call.
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
UIColor *bgColor = self.textLabel.backgroundColor;
[super setSelected:selected animated:animated];
self.textLabel.backgroundColor = bgColor;
}
You also need to do the same thing with -setHighlighted:animated:.
Found a pretty elegant solution instead of messing with the tableView methods. You can create a subclass of UIView that ignores setting its background color to clear color. Code:
class NeverClearView: UIView {
override var backgroundColor: UIColor? {
didSet {
if UIColor.clearColor().isEqual(backgroundColor) {
backgroundColor = oldValue
}
}
}
}
Obj-C version would be similar, the main thing here is the idea
I created a UITableViewCell category/extension that allows you to turn on and off this transparency "feature".
You can find KeepBackgroundCell on GitHub
Install it via CocoaPods by adding the following line to your Podfile:
pod 'KeepBackgroundCell'
Usage:
Swift
let cell = <Initialize Cell>
cell.keepSubviewBackground = true // Turn transparency "feature" off
cell.keepSubviewBackground = false // Leave transparency "feature" on
Objective-C
UITableViewCell* cell = <Initialize Cell>
cell.keepSubviewBackground = YES; // Turn transparency "feature" off
cell.keepSubviewBackground = NO; // Leave transparency "feature" on
Having read through all the existing answers, came up with an elegant solution using Swift by only subclassing UITableViewCell.
extension UIView {
func iterateSubViews(block: ((view: UIView) -> Void)) {
for subview in self.subviews {
block(view: subview)
subview.iterateSubViews(block)
}
}
}
class CustomTableViewCell: UITableViewCell {
var keepSubViewsBackgroundColorOnSelection = false
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
}
// MARK: Overrides
override func setSelected(selected: Bool, animated: Bool) {
if self.keepSubViewsBackgroundColorOnSelection {
var bgColors = [UIView: UIColor]()
self.contentView.iterateSubViews() { (view) in
guard let bgColor = view.backgroundColor else {
return
}
bgColors[view] = bgColor
}
super.setSelected(selected, animated: animated)
for (view, backgroundColor) in bgColors {
view.backgroundColor = backgroundColor
}
} else {
super.setSelected(selected, animated: animated)
}
}
override func setHighlighted(highlighted: Bool, animated: Bool) {
if self.keepSubViewsBackgroundColorOnSelection {
var bgColors = [UIView: UIColor]()
self.contentView.iterateSubViews() { (view) in
guard let bgColor = view.backgroundColor else {
return
}
bgColors[view] = bgColor
}
super.setHighlighted(highlighted, animated: animated)
for (view, backgroundColor) in bgColors {
view.backgroundColor = backgroundColor
}
} else {
super.setHighlighted(highlighted, animated: animated)
}
}
}
All we need is to override the setSelected method and change the selectedBackgroundView for the tableViewCell in the custom tableViewCell class.
We need to add the backgroundview for the tableViewCell in cellForRowAtIndexPath method.
lCell.selectedBackgroundView = [[UIView alloc] init];
Next I have overridden the setSelected method as mentioned below.
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
UIImageView *lBalloonView = [self viewWithTag:102];
[lBalloonView setBackgroundColor:[[UIColor hs_globalTint] colorWithAlphaComponent:0.2]];
UITextView *lMessageTextView = [self viewWithTag:103];
lMessageTextView.backgroundColor = [UIColor clearColor];
UILabel *lTimeLabel = [self viewWithTag:104];
lTimeLabel.backgroundColor = [UIColor clearColor];
}
Also one of the most important point to be noted is to change the tableViewCell selection style. It should not be UITableViewCellSelectionStyleNone.
lTableViewCell.selectionStyle = UITableViewCellSelectionStyleGray;