Class ActivityCode

app/src/main/java/eu/faircode/email/ActivityCode.java:67–547

import java.util.List;

public class ActivityCode extends ActivityBase {
    private WebView wvCode;
    private ContentLoadingProgressBar pbWait;
    private Group grpReady;

    private boolean force_light = false;
    private boolean sanitize = false;
    private boolean lines = false;
    private boolean links = false;
    private boolean pretty = true;
    private String searching = null;

    private static final int REQUEST_SAVE = 1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        if (savedInstanceState != null) {
            force_light = savedInstanceState.getBoolean("fair:force_light");
            sanitize = savedInstanceState.getBoolean("fair:sanitize");
            lines = savedInstanceState.getBoolean("fair:lines");
            links = savedInstanceState.getBoolean("fair:links");
            pretty = savedInstanceState.getBoolean("fair:pretty");
            searching = savedInstanceState.getString("fair:searching");
        }

        getOnBackPressedDispatcher().addCallback(this, new OnBackPressedCallback(true) {
            @Override
            public void handleOnBackPressed() {
                finishAndRemoveTask();
            }
        });

        View view = LayoutInflater.from(this).inflate(R.layout.activity_code, null);
        setContentView(view);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        wvCode = findViewById(R.id.wvCode);
        pbWait = findViewById(R.id.pbWait);
        grpReady = findViewById(R.id.grpReady);

        wvCode.clearCache(true);

        WebSettings settings = wvCode.getSettings();

        settings.setBuiltInZoomControls(true);
        settings.setDisplayZoomControls(false);

        settings.setCacheMode(WebSettings.LOAD_CACHE_ONLY);
        settings.setMixedContentMode(WebSettings.MIXED_CONTENT_NEVER_ALLOW);

        if (WebViewEx.isFeatureSupported(this, WebViewFeature.ATTRIBUTION_REGISTRATION_BEHAVIOR))
            WebSettingsCompat.setAttributionRegistrationBehavior(settings, WebSettingsCompat.ATTRIBUTION_BEHAVIOR_DISABLED);

        settings.setLoadsImagesAutomatically(false);
        settings.setBlockNetworkLoads(true);