Android Lollipop Activity Screen corrupted

Question

I build my App with Android Lollipop SDK (21). After opening some activities and close they, one activity has this corrupted screen. It looks like a Memory error, but this happens only on Android Lollipop devices. In the Logcat i cant see errors.

Any ideas what this is?

enter image description here

Do you have a `WebView` (or `AdView`) widget in your app, by chance? Did you check http://stackoverflow.com/questions/27172217/android-systemui-glitches ? — matiash, Dec 10 '14 at 21:16
webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null); solves the problem. — Surendra Kumar, Dec 22 '14 at 11:26

score 5 · Accepted Answer · answered Dec 22 '14 at 11:26

5

webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null); solves the problem.

answered Dec 22 '14 at 11:26

Surendra Kumar

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Thank you this worked for my app which uses WebView. I was experiencing the exact same corruption as pointed out by @Zenco. (I am using a Nexus 5 running Lollipop 5.0.1) Setting LayerType to TYPE SOFTWARE worked for me. :-) – Anthony De Souza Feb 04 '15 at 16:18

MineConsulting SRL · Answer 2 · 2014-12-11T06:52:13.390

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It should also happen on 4.4. Try to always assign a background to your fragment or activity. update Somebody did try using a transparent bkg and it didn't work.

edited Dec 11 '14 at 06:52

answered Dec 01 '14 at 08:40

MineConsulting SRL

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Do you know why this happens? – Zenco Dec 01 '14 at 08:48
No idea i guess it is caused by some kind of graphic problem in the sdk. did you try it? @Zenco? – MineConsulting SRL Dec 01 '14 at 08:50
Yes, but i cant reproduce this. I vote your answer up, if this effect doesnt appear. – Zenco Dec 01 '14 at 09:06
This solution did work with me. – MineConsulting SRL Dec 01 '14 at 09:08
Have you set the activity background in the styles.xml for all activities? @drawable/my_background – Zenco Dec 01 '14 at 09:12
No usually i set it into the xml layout because in my case every activity has a different background – MineConsulting SRL Dec 01 '14 at 09:15
Damn, your solution doesnt work for me. – Zenco Dec 01 '14 at 13:04
@Zenco are you sure? if you have a fragment inside your activity it is important to set his background – MineConsulting SRL Dec 01 '14 at 13:17
Yes, i understand. I have a FragmentActivity with a ViewPager. But the corrupt Activity had already a background color `android:background="#000"`. I set a global background in the styles.xml. – Zenco Dec 01 '14 at 13:20
And each fragment included the viewpager and the fragments into it have a background set? Try to set the activity background into the layout xml. – MineConsulting SRL Dec 01 '14 at 13:37
@Zenco So did it work for you? Seems to be not working for me... – shkschneider Dec 05 '14 at 15:10
Sorry, i had been no time to test it. – Zenco Dec 05 '14 at 15:12
It happens because of `hardware acceleration. webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null); solves the problem. – Surendra Kumar Jan 19 '15 at 14:29
changing to software rendering is *not* a solution. – Martin Konecny Feb 27 '15 at 01:16
Worked for me,Try this too : http://stackoverflow.com/a/28132032/4693438 – Kenny Dabiri Oct 20 '16 at 19:52

Martin Konecny · Answer 3 · 2017-02-27T21:46:52.233

The solution

webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);

is OK, but a bit overkill since this issue only applies to Nexus devices on 5.0 Lollipop. Why punish all phone models?

boolean isLollipop = android.os.Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP;
boolean isNexus = android.os.Build.MODEL.toLowerCase().contains("nexus");

if (isLollipop && isNexus) {
    webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}

This code assumes that Google will fix the problem in the next version of the OS.

Edit

As of 5.1 this has been fixed, which this code handles.

Android Lollipop Activity Screen corrupted

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