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https://issues.apache.org/jira/browse/CB-8753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14387714#comment-14387714
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ASF GitHub Bot commented on CB-8753:
------------------------------------
Github user AlexTalis commented on a diff in the pull request:
https://github.com/apache/cordova-plugin-splashscreen/pull/43#discussion_r27445114
--- Diff: src/android/SplashScreen.java ---
@@ -194,9 +263,25 @@ public void run() {
// TODO: Use the background color of the webView's parent
instead of using the
// preference.
root.setBackgroundColor(preferences.getInteger("backgroundColor", Color.BLACK));
+
root.setLayoutParams(new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT, 0.0F));
- root.setBackgroundResource(drawableId);
+
+ // Use an ImageView to render the image because of its
flexible scaling options.
+ splashImageView = new ImageView(context);
+ splashImageView.setImageResource(drawableId);
--- End diff --
Setting ImageView background color does work. It just does not show with
any of the current scaling options. Without "maintain aspect ratio" the image
is stretched to fit screen, so you never see the background. With "maintain
aspect ratio" the image covers the screen fully, so again you don't see the
background.
If I hard-code a scaling option like FIT_CENTER, then ImageView background
color does fill areas that are not covered by the drawable. So if the purpose
of BG color is to simply fill areas not covered by the drawable, then we can
take out LinearLayout. I thought that the purpose was to somehow cover up the
WebView in background if the device is rotated, which probably wouldn't work
anyway. Here's the test app without LinearLayout, with scale mode temporarily
set to FIT_CENTER and BG color set to RED:
> Maintain splash screen aspect ratio
> -----------------------------------
>
> Key: CB-8753
> URL: https://issues.apache.org/jira/browse/CB-8753
> Project: Apache Cordova
> Issue Type: Improvement
> Components: Android
> Affects Versions: 3.7.1
> Environment: Android
> Reporter: Alex Talis
> Fix For: 3.8.0, 4.0.0, 3.7.1
>
> Attachments: cur-land.png, cur-port.png, new-land.png, new-port.png
>
>
> I will be submitting a pull request for this enhancement shortly.
> Current splash screen scales images non-uniformly to fit into splash dialog.
> This approach does not work well for many typical splash screen images that
> contain scenery or text and look bad when aspect ratio is not preserved.
> 9-patch images may work, but they have to be carefully designed so that the
> inside can be stretched without distorting important information.
> The purpose of this enhancement is to allow use of non-9-patch images without
> stretching, similar to CSS "background-size:cover" capability. For this to
> work, splash images have to have large safe area all around that can be
> safely cropped off.
> With this type of splash screen, it is usually necessary to use different
> images for portrait and landscape orientations, so a second part of this
> enhancement is to add an option to reload the drawable when orientation
> changes.
> Examples of the two preferences are shown below. Both are optional and
> default to False to maintain current splash screen behavior.
> <preference name="SplashMaintainAspectRatio" value="true"/>
> <preference name="SplashReloadOnOrientationChange" value="true"/>
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