Broken colors in DayNight Theme after loading Admob/Firebase ad

Question

I use Theme.AppCompat.DayNight.NoActionBar theme for my app. When I load adMob interstital some colors are broken in "night" mode (i.e. in RecyclerView).

Screen:

Those incorrect colors are from "notnight" values. When I close the app and run it again everything is okay. When I kill the app I have the same situation.

Activity code:

public class MainActivity extends AppCompatActivity {

    static {
        AppCompatDelegate.setDefaultNightMode(
                AppCompatDelegate.MODE_NIGHT_AUTO);
    }

    private ArrayList<String> planetList = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);


        setContentView(R.layout.activity_main);

        populateRecycler();

        RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view);

        LinearLayoutManager layoutManager = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(layoutManager);

        PlanetAdapter adapter = new PlanetAdapter(planetList, getApplicationContext());
        recyclerView.setAdapter(adapter);

        InterstitialAd interstitialAd = new InterstitialAd(this);
        interstitialAd.setAdUnitId("ca-app-pub-543543543/543543543");
        AdRequest adRequest = new AdRequest.Builder().build();
        interstitialAd.loadAd(adRequest);
    }

    private void populateRecycler() {
        for (int i = 0; i < 20; i++) {
            planetList.add("TEST");
        }
    }

}

When I comment interstitialAd.loadAd(adRequest) everything is ok.

You can find whole project here: github

score 23 · Answer 1 · answered Aug 01 '17 at 06:20

23

The issue is supposedly caused by the WebView resetting the UI mode, and this can be worked around by instantiating WebView manually.

I haven't seen the issue after doing this (in Application.oncreate() in this particular app):

    if (nightMode != AppCompatDelegate.MODE_NIGHT_NO) {
        Log.d(TAG, "Manually instantiating WebView to avoid night mode issue.");
        try {
            new WebView(getApplicationContext());
        } catch (Exception e) {
            Log.e(TAG, "Got exception while trying to instantiate WebView to avoid night mode issue. Ignoring problem.", e);
        }
    }
    AppCompatDelegate.setDefaultNightMode(nightMode);

Source: https://groups.google.com/forum/#!msg/google-admob-ads-sdk/OZzHq_-wAFY/K50jClZcBAAJ

answered Aug 01 '17 at 06:20

Roy Solberg

16,171
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74

1

WOW, Thank you so much, that worked! I´ve searched a long while, but without any success. I think your post and the discussion in the google group forum is the only one about this (VERY CRITICAL and DIFFICULT) topic/bug. – JonasPTFL Jun 18 '19 at 20:11
2

This is no longer an issue and no need to continue relying on the work around. Google has fixed the issue and we just have to update our appcompat to a minimum of https://developer.android.com/jetpack/androidx/releases/appcompat#1.1.0-alpha03 – display name Aug 29 '19 at 18:28
4

I had the same issue when I create a webview component after setting dark mode. Even though I updated Appcompat to 1.1.0-rc01, the issue was still there. The above work around fixed the issue. – Salmon K P Aug 30 '19 at 10:16
1

For anyone put the code in `Application.oncreate()` don't work like me try to put it in `Activity.onCreate()` – Kyo Huu Jun 25 '20 at 08:59

Broken colors in DayNight Theme after loading Admob/Firebase ad

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