fixed a crash when clicking on the Donate button but there is no browser on the device

app/src/main/java/io/github/sspanak/tt9/preferences/screens/main/ItemDonate.java

@@ -0,0 +1,41 @@
+package io.github.sspanak.tt9.preferences.screens.main;
+
+import android.content.Intent;
+import android.net.Uri;
+
+import androidx.preference.Preference;
+
+import io.github.sspanak.tt9.R;
+import io.github.sspanak.tt9.preferences.PreferencesActivity;
+import io.github.sspanak.tt9.preferences.items.ItemClickable;
+import io.github.sspanak.tt9.util.Logger;
+
+class ItemDonate extends ItemClickable {
+	static final String NAME = "donate_link";
+	private final PreferencesActivity activity;
+
+	ItemDonate(Preference preference, PreferencesActivity activity) {
+		super(preference);
+		this.activity = activity;
+	}
+
+	public ItemDonate populate() {
+		if (item != null) {
+			String appName = activity.getString(R.string.app_name_short);
+			String url = activity.getString(R.string.donate_url_short);
+			item.setSummary(activity.getString(R.string.donate_summary, appName, url));
+		}
+		return this;
+	}
+
+	@Override
+	protected boolean onClick(Preference p) {
+		try {
+			activity.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(activity.getString(R.string.donate_url))));
+			return true;
+		} catch (Exception e) {
+			Logger.w(getClass().getSimpleName(), "Cannot navigate to the donation page. " + e.getMessage() + " (do you have a browser?)");
+			return false;
+		}
+	}
+}

app/src/main/java/io/github/sspanak/tt9/preferences/screens/main/MainSettingsScreen.java

@@ -40,15 +40,8 @@ public class MainSettingsScreen extends BaseScreenFragment {
 
 
 	private void createAboutSection() {
-		Preference donate = findPreference("donate_link");
+		(new ItemDonate(findPreference(ItemDonate.NAME), activity)).populate().enableClickHandler();
-		if (donate != null) {
+		(new ItemVersionInfo(findPreference(ItemVersionInfo.NAME), activity)).populate().enableClickHandler();
-			String appName = getString(R.string.app_name_short);
-			String url = getString(R.string.donate_url_short);
-			donate.setSummary(getString(R.string.donate_summary, appName, url));
-		}
-
-		ItemVersionInfo debugOptions = new ItemVersionInfo(findPreference(ItemVersionInfo.NAME), activity);
-		debugOptions.populate().enableClickHandler();
 	}
 
 

app/src/main/res/xml/prefs.xml

@@ -38,12 +38,7 @@
 
 		<Preference
 			app:key="donate_link"
-			app:title="@string/donate_title"
+			app:title="@string/donate_title" />
-			app:summary="@string/donate_summary">
-			<intent
-				android:action="android.intent.action.VIEW"
-				android:data="@string/donate_url" />
-		</Preference>
 
 		<Preference
 			app:key="version_info"