My purpose is to achieve a page darkening effect with a black panel behind the WKWebView. This is what I've come up with:
The first two methods work as expected, but the setAlpha method is not. What am I doing wrong? Is there a better way to access the WKWebView's alpha level property?
B4X:
#IF OBJC
- (void )setTransparent: (UIWebView*)WKWebView {
[WKWebView setBackgroundColor:[UIColor clearColor]];
[WKWebView setOpaque:NO];
}
- (void )setOpaque: (UIWebView*)WKWebView {
[WKWebView setBackgroundColor:[UIColor whiteColor]];
[WKWebView setOpaque:YES];
}
- (void )setAlpha: (UIWebView*)WKWebView {
[WKWebView setBackgroundColor:[UIColor colorWithRed:0.0f/255.0f green:0.0f/255.0f blue:0.0f/255.0f alpha:0.8f]];
[WKWebView setOpaque:NO];
}
#END IFThe first two methods work as expected, but the setAlpha method is not. What am I doing wrong? Is there a better way to access the WKWebView's alpha level property?