Is it possible to change UIPreviewAction color?

Question

The only options for styling I saw in the API are:

• UIPreviewActionStyleDefault
• UIPreviewActionStyleSelected,
• UIPreviewActionStyleDestructive

Is it possible to somehow paint the buttons in another color? Our designer really didn't liked the default blue buttons

Answer 1

No, it is not possible to change button colors in UIPreviewAction. Even if you add colored images it will switch to default blue color.

Answer 2

Try this:

myPreviewAction.tintColor = myColor

With this UIPreviewAction extension:

extension UIPreviewAction {

    var tintColor: UIColor? {
        get {
            return value(forKey: "_color") as? UIColor
        }
        set {
            setValue(newValue, forKey: "_color")
        }
    }

}

Answer 3

You can add these snippets on below for the viewcontroller which implements UIPreviewAction

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    UIView *containerView = [self.view superviewOfClass:NSClassFromString(@"_UIVisualEffectContentView")];
    containerView.tintColor = YOUR_CUSTOM_COLOR;
}

In a UIView category

- (UIView *)superViewOfClass:(Class)class {
    UIView *parent = self;
    while ((parent = parent.superview)) {
        if ([parent isKindOfClass:class]) {
            return parent;
        }
    }
    return nil;
}

Answer 4

You can only for UIPreviewActionStyleDefault by setting global tint color:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    [self.window setTintColor:[UIColor greenColor]];
    return YES;
}