Jenel Ejercito Myers Jenel Ejercito Myers - 6 months ago 107
Objective-C Question

tableview, change font color of focus tvos

How do you change the font color of a "focused" UITableView cell? I currently have this....

- (void)didUpdateFocusInContext:(UIFocusUpdateContext *)context withAnimationCoordinator:(UIFocusAnimationCoordinator *)coordinator {
if (context.nextFocusedView) {
CategoryCell *cell = [self.categoryTableView dequeueReusableCellWithIdentifier:@"CategoryCell"];
[cell.categoryLbl setTextColor:[UIColor orangeColor]];
}
}


I know that if you want to change a background of a focused UITableViewCell it would be:

- (void)didUpdateFocusInContext:(UIFocusUpdateContext *)context withAnimationCoordinator:(UIFocusAnimationCoordinator *)coordinator {
[context.nextFocusedView setBackgroundColor:[UIColor clearColor]];
[context.previouslyFocusedView setBackgroundColor:[UIColor orangeColor]];
}

C_X C_X
Answer

In TVOS UITableViewDelegate have new method tableView:didUpdateFocusInContext:withAnimationCoordinator: which will be called when focus change, you can get previous IndexPath and nextFocusIndexPath and then you can use tableView methods to get cells, your code should look like this

- (void)tableView:(UITableView *)tableView didUpdateFocusInContext:(UITableViewFocusUpdateContext *)context withAnimationCoordinator:(UIFocusAnimationCoordinator *)coordinator
{
    NSIndexPath *prevIndexPath = [context previouslyFocusedIndexPath];
    if (prevIndexPath)
    {
        UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:prevIndexPath];
        cell.textLabel.textColor = [UIColor white];
    }
    NSIndexPath *nextIndexPath = [context nextFocusedIndexPath];
    if (nextIndexPath)
    {
    UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:nextIndexPath];
    cell.textLabel.textColor = [UIColor blackColor];
    } 
}

Please visit this Apple docs for more detail