Views disappear from UITableViewCell when selected

Question

I have a UITableView with custom UITableViewCells. The contents of the cell are stored in a separate class that extends the UIView (I have 3 types of content that I switch, hiding and showing views, I used this approach because of the way I wanted to make the transition between cells). Therefore, let's say that I have one of the views visible and added to the contentView cell. This view contains text and some rectangles from UIViews. Everything is fine so far, but it’s strange when I touch the cell, the rectangles just disappear, the text remains the same. Do you know what could be the problem? I also tried adding a view to the backgroundView by doing the same.

- (id) initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier { self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]; if (self) { self.active = NO; state = -1; // Touch is not working if the view has no bounds self.backgroundView = [[UIView alloc] init]; self.backgroundColor = [UIColor clearColor]; self.selectedBackgroundView = [[UIView alloc] init]; self.selectedBackgroundView.backgroundColor = [UIColor clearColor]; self.clipsToBounds = YES; self.contentView.clipsToBounds = YES; // Add empty view emptyView = [[View1 alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height) andRadius:CELL_DOT_RADIUS]; emptyView.userInteractionEnabled = NO; [self.backgroundView addSubview:emptyView]; 

View:

 - (id) initWithFrame:(CGRect)frame andRadius:(int)r { self = [super initWithFrame:frame]; radius = r; if (self) { int outerlineWeight = 1; timelineView = [[UIView alloc] initWithFrame:CGRectMake(frame.size.width/4, frame.size.height/2, 1, 1)]; [self addSubview:timelineView]; dotView = [[UIView alloc] initWithFrame:CGRectMake(frame.size.width/4-radius, frame.size.height/2-radius, radius*2, radius*2)]; dotView.layer.cornerRadius = radius; dotView.autoresizingMask = UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin; [self addSubview:dotView]; UIView *n = [[UIView alloc] initWithFrame:CGRectMake(160, 0, 50, 20)]; n.backgroundColor = [UIColor redColor]; [self addSubview:n]; middleText = [[UILabel alloc] initWithFrame:dotView.frame]; middleText.font = [UIFont systemFontOfSize:12]; middleText.textColor = [UIColor grayColor]; middleText.backgroundColor = [UIColor clearColor]; middleText.textAlignment = NSTextAlignmentCenter; [self addSubview:middleText]; 

These are sources, so you can try it yourself if you want. As you can see, the orange rectangle disappears, but the text does not. For what I need to do, nothing should disappear, at best I want to change their colors. http://ge.tt/6wRBObD1/v/0?c

Answer 1

In swift, you need to declare the viewcontroller object globally, which will lead to strong, in case you declare locally, this will lead to the disappearance of cells.

 var refineViewController : RefineViewController? 

then you can access this controller using the code below that will not cause the cells to disappear.

 func showRefineView(isFindHomeTab isFindHomeTab : Bool){ refineViewController = RefineViewController(nibName: String(BaseGroupedTableVC),bundle : nil) refineViewController!.refineSearchDelegate = self refineViewController!.view.frame = CGRectMake(0, -490, self.view.frame.size.width, self.view.frame.size.height) UIView.animateWithDuration(0.3, delay: 0.0, options: .CurveEaseOut, animations: { self.refineViewController!.view.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height) self.refineViewController!.isFindHomeTab = isFindHomeTab }, completion: nil) self.view.addSubview(refineViewController!.view) } 

Answer 2

You add it to the background view. When selected, the selected background view will not be displayed in the background. In your custom cell try

 - (void)setSelected:(BOOL)selected animated:(BOOL)animated { [super setSelected:selected animated:animated]; if (selected) { [self.backgroundView addSubview:emptyView]; } else{ [self.selectedBackgroundView addSubview:emptyView]; } // Configure the view for the selected state } 

Or add an empty view to the contentview

Answer 3

one for frame settings u need to override the layoutsubviews ... method in a custom cell

• initialize all views in the initialization method i, e ur - (id) initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier and add it to the cell

• in - (void)layoutSubviews just set the frame for ur views in the cell,

use a tag property to access views in layoutsubviews if this is not a property

  - (id) initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier { self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]; if (self) { self.active = NO; state = -1; // Touch is not working if the view has no bounds self.backgroundView = [[UIView alloc] init]; self.backgroundColor = [UIColor clearColor]; self.selectedBackgroundView = [[UIView alloc] init]; self.selectedBackgroundView.backgroundColor = [UIColor clearColor]; self.clipsToBounds = YES; self.contentView.clipsToBounds = YES; // Add empty view //emptyView = [[View1 alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height) andRadius:CELL_DOT_RADIUS];//dont set the frame heare do it layoutsubviews emptyView = [[View1 alloc] init]; emptyView.userInteractionEnabled = NO; emptyView.tag = 100; [self.backgroundView addSubview:emptyView]; - (void)layoutSubviews { [super layoutSubviews]; UIView *emptyView = [self viewWithTag:100];//your background view heare u can get the frame values for ur cell emptyView.frame = self.bounds;//better do it for other views in cell also //test it by setting some background color } 

Hope this helps you ... :)

Answer 4

Ok, so, as I said in my last comment, the backgroundColor of any subview is a problem, it is cleared in the selected state. For cells created in the interface constructor, the problem does not arise, my cells are created programmatically. I fixed this by drawing with CoreGraphics in the drawRect method.

Answer 5

As with UICollectionView, UITableView has a background view that is created before AutoLayout. If you use autoLayout, you must make sure that backgroundView has a frame. Otherwise it will disappear. In a subclass of your cell, you can:

  -(void)setBackgroundView:(UIView *)backgroundView { super.backgroundView = backgroundView; self.backgroundView.translatesAutoresizingMaskIntoConstraints = NO; [self.backgroundView autoPinEdgesToSuperviewEdgesWithInsets:UIEdgeInsetsZero]; }