Merge pull request #165 from riveronly/main

fix(backgroundColor scrolling): ios add opaque param

Author: KevinnZou

webview/src/commonMain/kotlin/com/multiplatform/webview/setting/PlatformWebSettings.kt

@@ -188,6 +188,13 @@ sealed class PlatformWebSettings {
      * IOS web settings
      */
     data class IOSWebSettings(
+        /**
+         * The ios default opaque display
+         * The default value is {@code false}.
+         * When Value is true will turn off these two properties:
+         * @param backgroundColor,@param underPageBackgroundColor
+         */
+        var opaque: Boolean = false,
         /**
          * The background color of the WebView client. The default value is {@code null}.
          * Will use WebSettings backgroundColor when null.

webview/src/iosMain/kotlin/com/multiplatform/webview/web/WebView.ios.kt

@@ -97,7 +97,6 @@ fun IOSWebView(
                 )
                 this.navigationDelegate = navigationDelegate
 
-                setOpaque(false)
                 state.webSettings.let {
                     val backgroundColor =
                         (it.iOSWebSettings.backgroundColor ?: it.backgroundColor).toUIColor()
@@ -106,8 +105,11 @@ fun IOSWebView(
                             it.iOSWebSettings.underPageBackgroundColor
                                 ?: it.backgroundColor
                         ).toUIColor()
-                    setBackgroundColor(backgroundColor)
-                    scrollView.setBackgroundColor(scrollViewColor)
+                    setOpaque(it.iOSWebSettings.opaque)
+                    if (!it.iOSWebSettings.opaque) {
+                        setBackgroundColor(backgroundColor)
+                        scrollView.setBackgroundColor(scrollViewColor)
+                    }
                     scrollView.pinchGestureRecognizer?.enabled = it.supportZoom
                 }
                 state.webSettings.iOSWebSettings.let {