+ // Initialize the default preference values the first time the program is run. `false` keeps this command from resetting any current preferences back to default.
+ PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
+
+ // Get a handle for the `Runtime`.
+ privacyBrowserRuntime = Runtime.getRuntime();
+
+ // Store the application's private data directory.
+ privateDataDirectoryString = getApplicationInfo().dataDir;
+ // `dataDir` will vary, but will be something like `/data/user/0/com.stoutner.privacybrowser.standard`, which links to `/data/data/com.stoutner.privacybrowser.standard`.
+
+ // Initialize `inFullScreenBrowsingMode`, which is always false at this point because Privacy Browser never starts in full screen browsing mode.
+ inFullScreenBrowsingMode = false;
+
+ // Initialize the privacy settings variables.
+ javaScriptEnabled = false;
+ firstPartyCookiesEnabled = false;
+ thirdPartyCookiesEnabled = false;
+ domStorageEnabled = false;
+ saveFormDataEnabled = false; // Form data can be removed once the minimum API >= 26.
+ nightMode = false;
+
+ // Store the default user agent.
+ webViewDefaultUserAgent = mainWebView.getSettings().getUserAgentString();
+
+ // Initialize the WebView title.
+ webViewTitle = getString(R.string.no_title);
+
+ // Initialize the favorite icon bitmap. `ContextCompat` must be used until API >= 21.
+ Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
+ BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
+ assert favoriteIconBitmapDrawable != null;
+ favoriteIconDefaultBitmap = favoriteIconBitmapDrawable.getBitmap();
+
+ // If the favorite icon is null, load the default.
+ if (favoriteIconBitmap == null) {
+ favoriteIconBitmap = favoriteIconDefaultBitmap;
+ }
+
+ // Initialize the user agent array adapter and string array.
+ userAgentNamesArray = ArrayAdapter.createFromResource(this, R.array.user_agent_names, R.layout.spinner_item);
+ userAgentDataArray = resources.getStringArray(R.array.user_agent_data);
+
+ // Apply the app settings from the shared preferences.
+ applyAppSettings();
+
+ // Instantiate the block list helper.
+ BlockListHelper blockListHelper = new BlockListHelper();
+
+ // Initialize the list of resource requests.
+ resourceRequests = new ArrayList<>();
+
+ // Parse the block lists.
+ final ArrayList<List<String[]>> easyList = blockListHelper.parseBlockList(getAssets(), "blocklists/easylist.txt");
+ final ArrayList<List<String[]>> easyPrivacy = blockListHelper.parseBlockList(getAssets(), "blocklists/easyprivacy.txt");
+ final ArrayList<List<String[]>> fanboysAnnoyanceList = blockListHelper.parseBlockList(getAssets(), "blocklists/fanboy-annoyance.txt");
+ final ArrayList<List<String[]>> fanboysSocialList = blockListHelper.parseBlockList(getAssets(), "blocklists/fanboy-social.txt");
+ final ArrayList<List<String[]>> ultraPrivacy = blockListHelper.parseBlockList(getAssets(), "blocklists/ultraprivacy.txt");
+
+ // Store the list versions.
+ easyListVersion = easyList.get(0).get(0)[0];
+ easyPrivacyVersion = easyPrivacy.get(0).get(0)[0];
+ fanboysAnnoyanceVersion = fanboysAnnoyanceList.get(0).get(0)[0];
+ fanboysSocialVersion = fanboysSocialList.get(0).get(0)[0];
+ ultraPrivacyVersion = ultraPrivacy.get(0).get(0)[0];
+
+ // Get a handle for the activity. This is used to update the requests counter while the navigation menu is open.
+ Activity activity = this;
+
+ mainWebView.setWebViewClient(new WebViewClient() {
+ // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
+ // The deprecated `shouldOverrideUrlLoading` must be used until API >= 24.
+ @SuppressWarnings("deprecation")
+ @Override
+ public boolean shouldOverrideUrlLoading(WebView view, String url) {
+ if (url.startsWith("http")) { // Load the URL in Privacy Browser.
+ // Reset the formatted URL string so the page will load correctly if blocking of third-party requests is enabled.
+ formattedUrlString = "";
+
+ // Apply the domain settings for the new URL. `applyDomainSettings` doesn't do anything if the domain has not changed.
+ boolean userAgentChanged = applyDomainSettings(url, true, false);
+
+ // Check if the user agent has changed.
+ if (userAgentChanged) {
+ // Manually load the URL. The changing of the user agent will cause WebView to reload the previous URL.
+ mainWebView.loadUrl(url, customHeaders);
+
+ // Returning true indicates that Privacy Browser is manually handling the loading of the URL.
+ return true;
+ } else {
+ // Returning false causes the current WebView to handle the URL and prevents it from adding redirects to the history list.
+ return false;