UIWebView Transparent background in ios8 - ios

Question

I am using a UIWebview,but there is some black background behind the web view in ios8. The same is working fine in ios7. I also set opaque to NO.

Answer 1

Try adding UIWebview as subview programmatically.
WebView = [[UIWebView alloc]initWithFrame:CGRectMake(264, 10, 745, 576)];
WebView.userInteractionEnabled = YES;
[self setBorderToView: WebView];
WebView.scrollView.bounces = NO;
[WebView setBackgroundColor:[UIColor clearColor]];
[WebView setOpaque:NO];
[WebView loadHTMLString: embedHTML baseURL: nil];
[self.view addSubview: WebView];
Hope this helps you!

Answer 2

I also faced same issue, after not getting proper solution I did a trick using Masking.
CALayer *aLayer = [CALayer layer];
aLayer.backgroundColor = [UIColor blackColor].CGColor;
aLayer.frame = CGRectMake(origin.x, origin.y, widthOfVideo, heightOfVideo);
objWebView.layer.mask = aLayer;
And This worked for me. Hope that can be helpful to you.

Answer 3

Put a instance variable in the in the header file or your class:
// instance variable for interval timer
NSTimer *BackgroundIntervalTimer;
Put these methods in the implementation file:
- (void)startUIWebViewBackgroundFixTimer {
// if > iOS 8 start fixing background color of UIWebPDFView
if (!SYSTEM_VERSION_LESS_THAN(#"8.0")) {
// hide pdfWebView until background fixed
self.pdfWebView.alpha = 0.0;
// start interval timer
BackgroundIntervalTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:#selector(fixBackground) userInfo:nil repeats:YES];
}
}
- (void)stopUIWebViewBackgroundFixTimer {
[BackgroundIntervalTimer invalidate];
BackgroundIntervalTimer = nil;
}
- (void)fixBackground {
// stop timer interval
[self stopUIWebViewBackgroundFixTimer];
// Assuming self.webView is our UIWebView
// We go though all sub views of the UIWebView and set their backgroundColor to white
UIView *v = self.pdfWebView;
while (v) {
//v.backgroundColor = [UIColor whiteColor];
v = [v.subviews firstObject];
if ([NSStringFromClass([v class]) isEqualToString:#"UIWebPDFView"]) {
[v setBackgroundColor:[UIColor whiteColor]];
// background set to white so fade view in and exit
[UIView animateWithDuration:0.25 delay:0.0 options:UIViewAnimationOptionCurveEaseOut
animations:^{
self.pdfWebView.alpha = 1.0;
}
completion:nil];
return;
}
}
// UIWebPDFView doesnt exist yet so exit and try later
[self startUIWebViewBackgroundFixTimer];
}
Now put this line right after the line where you load the pdf:
// if iOS 8 check if pdfWebView got subview of class UIWebPDFView
[self startUIWebViewBackgroundFixTimer];