如何为UITableView单元格设置复合背景色？

Question

I want to divide the UITableViewCell horizontally into two.

Set the bottom half color to blue and top half color to light blue.

Also the colors need to be reversed when the cell is selected.

I trying to implement using CALayer . But not much successful.

As table contain lots of data use of image will hamper performance and use lot of memory.

How do I do this?

Answer 1

为什么不使用在后台排序的两个UIView，并为每个UIView分配不同的背景颜色？

Answer 2

Create two UIView objects and set its background color to the ones that you want. Using these two view, create the background views for selected and normal state of the cell. You do this by setting the frames of the views according to the cell's frame. Then, you need to set two properties for the UITableViewCell in cellForRowAtIndexPath: .

@property(nonatomic, retain) UIView *backgroundView
@property(nonatomic, retain) UIView *selectedBackgroundView

Answer 3

You should be able to use the background view property of the cell

UITableViewCell *cell = // ... code to create table view cell

UIView *topView = [[UIView alloc] initWithFrame:CGRectMake(0,0,cell.contentView.frame.size.width, cell.contentView.frame.size.height/2);

UIView *bottomView = [[UIView alloc] initWithFrame:CGRectMake(0,0,cell.contentView.frame.size.width, cell.contentView.frame.size.height/2);

UIView *backgroundView = [[UIView alloc] initWithFrame:CGRectMake(0,0,cell.contentView.frame.size.height, cell.contentView.frame.size.width);

[backgroundView addSubview:topView];
[backgroundView addSubview:bottomView];

cell.backgroundView = backgroundView;