we all know that the cell in uitableview can be resued, but i am seeing some weird results. i am create a custom cell, each cell has 4 columns, each column has an image so format is like this |img|img|img|img| after the cell is returned, i am configuring each cell, an example would be configuring first column to picture 1, then second column to different picture
now just assuming that i can only display two rows at a time in the tableview:
|a0|a1|a2 |a3 |
|b4|b5|b6 |b7 |
------cell c not visible to user------
|c8|c9|c10|c11|
as user scrolls down, column 'a' (a0-a3) above, will become invisible, and as far i know that cell becomes invisible will be reused for column c
the example above works fine, if i can fully occupy every cell/row, i.e. i have total 12 pictures.
but if i have say 10 pictures (last row will be filled with only 2, and the other two are empty, like as the following:
|a0|a1|a2 |a3 |
|b4|b5|b6 |b7 |
------row/cell 'c' not visible to user------
|c8|c9|empty|empty|
however, problem arises, when i scroll up to see cell/row 'c' i have the following picture:
|a0|a1|a2 |a3 |
------row/cell 'a' not visible to user------
|b4|b5|b6 |b7 |
|c8|c9|a2|a3|
notice that the row/cell c's last two columns should be empty, but is showing a2 and a3 instead
how can i fix this? i am thinking about a manual way of doing this, i.e. by checking if i should remove unnecessary views etc when reusing, but could be more complicated is there a more systematic way of doing this that is easier and cleaner?
is there a way we could ask the returned cell to forget its content, or do i have to do this myself?
thanks
