How to mask UITableViewCells underneath a UITableView Transparent Header

Question

I want the header to mask the cells, but not the background.

I have a UITableView with transparent headers and cells similar to Apple\'s Notification Center (when yo

Answer 1

I have two possible solutions, no code - just the idea:

1. not generic, should work with the settup/design apple uses at the Notification Center.

Make the Section-Header opaque, 'clone' the background-pattern of the table as background of the section-Header. Position the background-pattern depending on the section-header offset.

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1. genereic, but probably more performance problems. Should work fine with few cells.

Add a Alpha Mask to all cell-layers. Move the Alpha Mask depending on the cell-position.

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(use scrollViewDidScroll delegate method to maintain the background-pattern / Alpha-Mask offset).