Hi, Yes, that XWalkView has been changed to use TextureView by default, you can still change that by XWalkPreferences.ANIMATABLE_XWALKVIEW.
For your question, as my understanding, if your video player is surface view, it’s not going to composite correctly with XWalkView if it’s a TextureView. However, it might have a chance to use XWalkView as SurfaceView. From http://developer.android.com/reference/android/view/SurfaceView.html#setZOrderMediaOverlay(boolean) you can see that each Activity have actually three zorder for SurfaceView. Not sure whether you have tried that already. Thanks, Shiliu. From: Crosswalk-help [mailto:[email protected]] On Behalf Of liutongbing Sent: Friday, November 21, 2014 10:28 PM To: Min, Hongbo Cc: [email protected] Subject: [Crosswalk-help] 答复: [Crosswalk help]Issue about transparent background of webview Hi Hongbo, I download the newest version 11 of crosswalk and find that the view of webview is change to texture view, is there a way to fix this bug now? I captured the view stack and found that if I change the background color of " org.xwalk.core.internal.XWalkContent ", this color will show in the background of the webview, so is there a change I can insert my video player surface view to the view stack to show the video in the background of webview? [0]:org.apache.cordova.CordovaWebView [1]: org.xwalk.core.internal.XWalkViewBridge [2]: org.xwalk.core.internal.XWalkContent [My video player surface view <------ Insert here] [3]: org.xwalk.core.internal.XWalkContent$1 [4]: android.view.TextureView [3]: org.chromium.content.browser.JellyBeanContentView Best Regards, -----邮件原件----- 发件人: Min, Hongbo [mailto:[email protected]] 发送时间: 2014年10月23日 4:23 收件人: Liutongbing 抄送: [email protected]<mailto:[email protected]> 主题: RE: [Crosswalk-help] [Crosswalk help]Issue about transparent background of webview Hi, Tongbing I have a try to change the PixelFormat of SurfaceView, e.g. make it be TRANSPARENT or TRANSLUCENT, the background can not be transparent. As I explained before, it is reasonable since chromium uses SurfaceView as compositing surface target with GL commands. However, if SurfaceView is rendered by canvas API, it might be easy to make it transparent, see the sample code http://www.phonesdevelopers.com/1754575/, and this is a total different way from Chromium. Regards Hongbo ________________________________________ From: Liutongbing [[email protected]] Sent: Monday, October 20, 2014 6:03 PM To: Min, Hongbo Cc: [email protected]<mailto:[email protected]> Subject: 答复: [Crosswalk-help] [Crosswalk help]Issue about transparent background of webview Hi Hongbo, Thank you for your help. Waiting for your good news.:-) Meantime I will try to install the building environment of Crosswalk. BR, Liutongbing -----邮件原件----- 发件人: Min, Hongbo [mailto:[email protected]] 发送时间: 2014年10月16日 15:21 收件人: Liutongbing 抄送: [email protected]<mailto:[email protected]> 主题: RE: [Crosswalk-help] [Crosswalk help]Issue about transparent background of webview Yes, I also read that post, it is obsolete now and there is no SetTransparentBackground method in the latest code base. Also, the method mentioned in that post is mainly for desktop. I will try to set the PixelFormat of SurfaceView to TRANSPARENT in Crosswalk, and will let you know if it works well on Android. Regards Hongbo ________________________________________ From: Liutongbing [[email protected]] Sent: Thursday, October 16, 2014 2:45 PM To: Min, Hongbo; [email protected]<mailto:[email protected]> Subject: 答复: [Crosswalk-help] [Crosswalk help]Issue about transparent background of webview Hi Hongbo, I cannot use video tag because the video stream include some digital certificates for copyright things, before playing it need be parsed firstly. In below thread, @KyleLiu said that in compositor's constructor we could set the background from white to transparent, it seems can make background transparent. But this thread was post two years ago, does this method also works well today? https://groups.google.com/a/chromium.org/forum/#!topic/chromium-dev/w0NANZgsakI If you have the whole Crosswalk building environment, could you help me to have a try? Many thanks. BR, Liutongbing -----邮件原件----- 发件人: Min, Hongbo [mailto:[email protected]] 发送时间: 2014年10月16日 14:19 收件人: Liutongbing; [email protected]<mailto:[email protected]> 主题: RE: [Crosswalk-help] [Crosswalk help]Issue about transparent background of webview Hi, Would you want to hook chromium rendering code to make it be transparent? If so, I am afraid it might be technically infeasible. For Android platform, the reason is simple, the Chromium renders the web contents into a SurfaceView which can not become transparent. You can reference: [1] http://stackoverflow.com/questions/5391089/how-to-make-surfaceview-transparent [2] https://groups.google.com/forum/#!topic/android-developers/jYjvm7ItpXQ If not hooking chromium rendering code, did you ever consider to use the built-in HTML5 video player as your media player? If so, Crosswalk/Chromium allows your to custom your own controls, see [3] http://blog.teamtreehouse.com/building-custom-controls-for-html5-videos By the way, is there any special reason why to draw media to Android surface, but not re-use the existing HTML5 video solution? Regards Hongbo ________________________________ From: Liutongbing [[email protected]] Sent: Wednesday, October 15, 2014 4:18 PM To: Min, Hongbo; [email protected]<mailto:[email protected]> Subject: 答复: [Crosswalk-help] [Crosswalk help]Issue about transparent background of webview Hi Hongbo, Thank you for your reply! I am not familiar with the detail of chromium, could you help to give me some advice? Thanks a lot. BR, Liutongbing 发件人: Min, Hongbo [mailto:[email protected]] 发送时间: 2014年10月15日 10:34 收件人: Liutongbing; [email protected]<mailto:[email protected]> 主题: RE: [Crosswalk-help] [Crosswalk help]Issue about transparent background of webview Hi, Tongbing As far as I know, there is no much simple method to make the html background totally transparent without hooking the chromium core code. An attempt to use the approach to make html body transparent may lead to all UI elements invisible as you said. A short explanation for why need to hook chromium code is, each time chromium compositor starts to composite the web content by GPU, it would call glClear with white color, and the transparent effect requires to change the way of drawing a new frame. Thanks…Hongbo From: Crosswalk-help [mailto:[email protected]] On Behalf Of Liutongbing Sent: Monday, October 13, 2014 10:48 AM To: [email protected]<mailto:[email protected]<mailto:[email protected]%3cmailto:[email protected]>> Subject: [Crosswalk-help] [Crosswalk help]Issue about transparent background of webview Hello guys, My app is a video player, whole app logic and UI use html to implement and media is drawn to android surface, so when video is playing, the controller(like stop button, pause button etc. ) html is overlapped on the surface. So I need set the html background transparent, but if I do like this, all the elements of controller html also transparent, even if I cannot see the buttons but they also can be clicked. How to set the html background transparent and also can see the elements of html? I googled and found out a link, it said I need to modify chromium, is there any simple method? https://groups.google.com/a/chromium.org/forum/#!topic/chromium-dev/w0NANZgsakI Many thanks.
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