Question

In my iPhone app, I am using a single tableview to display different sets of data based on the button clicked.

Now as I am using the same tableView I need to blank out the tableView contents everytime a new button is selected.

And this is quite normal requirement rite? As such it is inefficient to take 7 tables to show 7 different data sets.

Problem:

I have seen that table clears out but when we display some other data in the table then the previous data appears in background as in Screenshot AFTER.
I have tried setting the array as nil and reloading the tableView but then it doesnt seem to work.

What can be a fix for this issue?

I have checked the code and it seems proper to me.

You can refer to the Screen shot to get a better idea of what actually is happening.

BEFORE ( i.e. the first time Event is clicked)

AFTER (i.e. once the Event category button is clicked after some other category button)

You can clearly see a different image in background where as it should be same as image in above screenshot. This is not a button, I am adding a UIImageView to tableViewCell.

Answer 1

NSArray is not mutable, that is, you cannot modify it.

Instead of using NSArray use NSMutableArray and use

[mutArr removeAllObjects];

and then reload the tableView. It worked for me.