UITableView 选中cell ,默认会有一个灰色的背景遮罩效果,这个灰色遮罩就是cell 自带的ios
selectedBackgroundViewapp
咱们能够设置selectedBackgroundView 的frame 、和 背景颜色ui
selectedBackgroundView.backgroundColoratom
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { cell.selectedBackgroundView.backgroundColor = [UIColor redColor]; cell.selectedBackgroundView.frame = cell.frame; } -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{ [self performSelector:@selector(unselectCell:) withObject:nil afterDelay:0.2]; } -(void)unselectCell:(id)sender{ [_setUpTableView deselectRowAtIndexPath:[_setUpTableView indexPathForSelectedRow] animated:YES]; }
这样就能够自定义选中效果啦。问题来拉,当选中一个cell时,你会发现这个cell 想临的cell 的分割线没啦(按下cell ,没有弹起,遮罩显示时)。spa
这™明显bug ,在ios7以后。code
这个里面的回答都试过遍了仍是不行。blog
本身搞吧,决定不用系统的分割线,本身加一个试试看。ip
在你cell 的基类中或 自定义cell 中添加这两个方法get
#define separatorViewTag 10456
@interface MyCustomTableViewCell(){ UIView *customSeparatorView; CGFloat separatorHight; } @property (nonatomic,weak)UIView *originSeparatorView; @end
/**
* 设置分割线 , separatorInset 不必定能实现
* 解决选中cell selectedBackgroundView 显示时 分割线显示不全
* @param insets insets description
*/
-(void)setSeparatorWithInset:(UIEdgeInsets)insets{ if (customSeparatorView) { customSeparatorView.frame = CGRectMake(insets.left, insets.top,self.width - insets.left - insets.right, self.originSeparatorView.height-insets.bottom - insets.top); self.originSeparatorView.hidden = YES; self.originSeparatorView.alpha = 0; }else{ for (int i = ([self.contentView.superview.subviews count] - 1); i >= 0; i--) { UIView *subView = self.contentView.superview.subviews[i]; if ([NSStringFromClass(subView.class) hasSuffix:@"SeparatorView"]) { self.originSeparatorView = subView; subView.hidden = YES; subView.alpha = 0; subView.frame = CGRectMake(insets.left, insets.top,self.width - insets.left - insets.right, subView.height-insets.bottom - insets.top); customSeparatorView = [[subView superview] viewWithTag:separatorViewTag]; if (!customSeparatorView) { customSeparatorView = [[UIView alloc] initWithFrame:subView.frame]; customSeparatorView.tag = separatorViewTag; [[subView superview] addSubview:customSeparatorView]; customSeparatorView.backgroundColor = [subView backgroundColor]; } [[subView superview] bringSubviewToFront:customSeparatorView]; break; } } } } -(void)setSeparatorColorWithColor:(UIColor *)sepColor{ if (customSeparatorView) { customSeparatorView.backgroundColor = sepColor; self.originSeparatorView.hidden = YES; self.originSeparatorView.alpha = 0; }else { for (int i = ([self.contentView.superview.subviews count] - 1); i >= 0; i--) { UIView *subView = self.contentView.superview.subviews[i]; if ([NSStringFromClass(subView.class) hasSuffix:@"SeparatorView"]) { self.originSeparatorView = subView; if (sepColor) { subView.hidden = YES; subView.alpha = 0; subView.backgroundColor = sepColor; customSeparatorView = [[subView superview] viewWithTag:separatorViewTag]; if (!customSeparatorView) { customSeparatorView = [[UIView alloc] initWithFrame:subView.frame]; customSeparatorView.tag = separatorViewTag; [[subView superview] addSubview:customSeparatorView]; customSeparatorView.backgroundColor = [subView backgroundColor]; } [[subView superview] bringSubviewToFront:customSeparatorView]; } break; } } } } -(void)layoutSubviews{ [super layoutSubviews]; [self setSeparatorWithInset:UIEdgeInsetsMake(0, 0, 0, 0)]; [self setSeparatorColorWithColor:[UIColor colorWithRed:31/255.0 green:32/255.0f blue:35/255.0 alpha:0.2]]; }
一个是设置分割线frame 的 一个是设置颜色。
其中遍历cell的subview 倒序。(提升效率)找到分割线,隐藏掉,重写一个view 加在分割线的superview 上。这样上面问题中使用selectedBackgroundView选中cell 时影响分割线的问题就解决啦。
注:tableview 使用section展现好像没事(把cell 都放到section 里),我项目设置页面就是这样没有问题使用selectedBackgroundView。当只有一个section时会出现上述问题。
最后我去回答下stackoverflow上得问题。