Hi, Lundin,
There are two backgrounds: Android window background and XWalkView background.
When a XWalkView view loaded, first show Android window background then
XWalkView background.
If you want to change the XWalkView background. There are two methods:
First and the suggested way, set the background with css:
//*************************Code Start*************************
body { background: #ff0000 fixed center; }
//*************************Code End*************************
Second, and with poor performance: mXWalkView.setBackgroundColor(0); I have
submitted a fix for bug 1910(under review).
With this patch, you can only set the background color to black(0); Other color
cannot be set, I am still investigate it.
If you want to change the Android window background, you can apply a custom
theme as below:
1), AndroidManifest.xml
//*************************Code Start*************************
14 <activity
android:name="org.xwalk.core.xwview.shell.XWalkViewShellActivity"
15 android:theme="@style/AppTheme"
16
android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
17 android:label="XWalkCoreShell">
18 <intent-filter>
19 <action android:name="android.intent.action.MAIN" />
20 <category android:name="android.intent.category.LAUNCHER" />
21 </intent-filter>
22 </activity>
//*************************Code End*************************
2), Create res/values-v17/theme.xml and provides related drawables:
//*************************Code Start*************************
1 <?xml version="1.0" encoding="utf-8"?><!--
2 Copyright (c) 2014 Intel Corporation. All rights reserved.
3 Use of this source code is governed by a BSD-style license that can be
4 found in the LICENSE file.
5 --><resources>
6 <!-- Application theme. -->
7 <style name="AppTheme"
parent="@android:style/Theme.Holo.Light.NoActionBar">
8 <item name="android:windowFullscreen">false</item>
9 <item name="android:windowBackground">@drawable/window_bg</item>
10 </style>
11 </resources>
//*************************Code End*************************
-----Original Message-----
From: Jonatan Lundin [mailto:[email protected]]
Sent: Sunday, February 1, 2015 1:59 AM
To: Xu, Xing
Subject: Re: [Crosswalk-help] Support for transparent backgrounds
Hello Xu,
That’s great news! Thank you for making this a priority.
Have a nice weekend,
Jonatan Lundin
> On 31 jan 2015, at 11:36, Xu, Xing <[email protected]> wrote:
>
> Hi, Lundin,
> Thanks for your interests in crosswalk project and your information for this
> issue.
> We will give priority to this problem since next Monday and fix it asap.
> After reproduce and tests, we will give ETA of this issue.
>
> Sorry for this inconvenience.
>
>
> -----Original Message-----
> From: Crosswalk-help
> [mailto:[email protected]] On Behalf
> Of Jonatan Lundin
> Sent: Friday, January 30, 2015 11:19 PM
> To: [email protected]
> Subject: [Crosswalk-help] Support for transparent backgrounds
>
> Hi all,
> I’ve spend the last few days migrating a larger hybrid app to XWalk, and I’m
> very happy with the general performance improvements as well as the increased
> stability and standards support I’ve seen.
>
> I’ve run into some trouble though. A few months back there were some
> discussion about issues with transparent backgrounds, since then it has been
> rather silent. These issues are still very much present though. Have you been
> making any progress with addressing them?
>
> This JIRA ticket seems highly relevant, but there hasn’t been any major
> action in the last 5 months:
> https://crosswalk-project.org/jira/browse/XWALK-1910
>
> As mentioned in other places, there has been a fix for this in the standard
> Android WebView since long:
> https://code.google.com/p/chromium/issues/detail?id=391462
>
> This is a fairly critical issue for my organization, so any help and/or
> updates would be more than welcome!
>
> Sincerely,
> Jonatan Lundin
> _______________________________________________
> Crosswalk-help mailing list
> [email protected]
> https://lists.crosswalk-project.org/mailman/listinfo/crosswalk-help
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