Transparent background in grouped UITableView - iPhone

Question

I want to make the grouped UITableView transparent. I partially succeded with the following code:

UIColor *bgColor = [[UIColor alloc] initWithWhite:1 alpha:0.0];
historyTable.backgroundColor = bgColor;

Unfortunately, black corners appeared in the rounded cells. How to get rid of them?

Answer 1

Instead of using

UIColor *bgColor = [[UIColor alloc] initWithWhite:1 alpha:0.0]; historyTable.backgroundColor = bgColor; 

Just use:

historyTable.backgroundColor = [UIColor clearColor]; 

That also clears up the memory leak you were creating.

Answer 2

remove UITableView backgroundView

xxx.backgroundView = nil; 

This is necessary on iPad builds. When compiling to run on iPad and iPhone, check the tableView responds to the selector with ...

if ([self.tableView respondsToSelector:@selector(setBackgroundView:)]) {     [self.tableView setBackgroundView:nil]; } 

Answer 3

for me it worked finaly after setting both to nil/clear:

[myTableView setBackgroundView:nil];
[myTableView setBackgroundColor:[UIColor clearColor]];