Prevent potential crashes (based on Play Store console reports).

app/src/main/java/org/transdroid/core/app/settings/ApplicationSettings.java

@@ -43,6 +43,7 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.Editor;
 import android.preference.PreferenceManager;
+import android.text.TextUtils;
 
 /**
  * Singleton object to access all application settings, including stored servers, web search sites and RSS feeds.
@@ -69,7 +70,7 @@ public class ApplicationSettings {
 	 * @return A list of all stored server settings objects
 	 */
 	public List<ServerSetting> getAllServerSettings() {
-		List<ServerSetting> all = new ArrayList<ServerSetting>();
+		List<ServerSetting> all = new ArrayList<>();
 		all.addAll(getNormalServerSettings());
 		for (SeedboxProvider provider : SeedboxProvider.values()) {
 			all.addAll(provider.getSettings().getAllServerSettings(prefs, all.size()));
@@ -116,7 +117,7 @@ public class ApplicationSettings {
 	 * @return A list of all stored server settings objects
 	 */
 	public List<ServerSetting> getNormalServerSettings() {
-		List<ServerSetting> servers = new ArrayList<ServerSetting>();
+		List<ServerSetting> servers = new ArrayList<>();
 		for (int i = 0; i <= getMaxNormalServer(); i++) {
 			servers.add(getNormalServerSetting(i));
 		}
@@ -145,19 +146,19 @@ public class ApplicationSettings {
 		Daemon type = Daemon.fromCode(prefs.getString("server_type_" + order, null));
 		boolean ssl = prefs.getBoolean("server_sslenabled_" + order, false);
 
-		String port = prefs.getString("server_port_" + order, "");
+		String port = prefs.getString("server_port_" + order, null);
-		if (port.equals(""))
+		if (TextUtils.isEmpty(port))
 			port = Integer.toString(Daemon.getDefaultPortNumber(type, ssl));
-		String localPort = prefs.getString("server_localport_" + order, "");
+		String localPort = prefs.getString("server_localport_" + order, null);
-		if (localPort.equals(""))
+		if (TextUtils.isEmpty(localPort))
 			localPort = port; // Default to the normal (non-local) port
 		try {
-			Integer.parseInt(port);
+			parseInt(port, Daemon.getDefaultPortNumber(type, ssl));
 		} catch (NumberFormatException e) {
 			port = Integer.toString(Daemon.getDefaultPortNumber(type, ssl));
 		}
 		try {
-			Integer.parseInt(localPort);
+			parseInt(localPort, parseInt(port, Daemon.getDefaultPortNumber(type, ssl)));
 		} catch (NumberFormatException e) {
 			localPort = port;
 		}
@@ -167,9 +168,9 @@ public class ApplicationSettings {
 				type, 
 				trim(prefs.getString("server_address_" + order, null)),
 				trim(prefs.getString("server_localaddress_" + order, null)),
-				Integer.parseInt(localPort),
+				parseInt(localPort, parseInt(port, Daemon.getDefaultPortNumber(type, ssl))),
 				prefs.getString("server_localnetwork_" + order, null), 
-				Integer.parseInt(port), 
+				parseInt(port, Daemon.getDefaultPortNumber(type, ssl)),
 				ssl, 
 				prefs.getBoolean("server_ssltrustall_" + order, false), 
 				prefs.getString("server_ssltrustkey_" + order, null),
@@ -182,7 +183,7 @@ public class ApplicationSettings {
 				prefs.getString("server_downloaddir_" + order, null), 
 				prefs.getString("server_ftpurl_" + order, null), 
 				prefs.getString("server_ftppass_" + order, null), 
-				Integer.parseInt(prefs.getString("server_timeout_" + order, "8")), 
+				parseInt(prefs.getString("server_timeout_" + order, "8"), 8),
 				prefs.getBoolean("server_alarmfinished_" + order, true), 
 				prefs.getBoolean("server_alarmnew_" + order, false),
 				prefs.getString("server_alarmexclude_" + order, null),
@@ -380,7 +381,7 @@ public class ApplicationSettings {
 	 * @return A list of all stored web search site settings objects
 	 */
 	public List<WebsearchSetting> getWebsearchSettings() {
-		List<WebsearchSetting> websearches = new ArrayList<WebsearchSetting>();
+		List<WebsearchSetting> websearches = new ArrayList<>();
 		for (int i = 0; i <= getMaxWebsearch(); i++) {
 			websearches.add(getWebsearchSetting(i));
 		}
@@ -443,7 +444,7 @@ public class ApplicationSettings {
 	 * @return A list of all stored RSS feed settings objects
 	 */
 	public List<RssfeedSetting> getRssfeedSettings() {
-		List<RssfeedSetting> rssfeeds = new ArrayList<RssfeedSetting>();
+		List<RssfeedSetting> rssfeeds = new ArrayList<>();
 		for (int i = 0; i <= getMaxRssfeed(); i++) {
 			rssfeeds.add(getRssfeedSetting(i));
 		}
@@ -566,7 +567,7 @@ public class ApplicationSettings {
 	 * @return A list of search settings, all of which are either a {@link SearchSite} or {@link WebsearchSetting}
 	 */
 	public List<SearchSetting> getSearchSettings() {
-		List<SearchSetting> all = new ArrayList<SearchSetting>();
+		List<SearchSetting> all = new ArrayList<>();
 		all.addAll(searchHelper.getAvailableSites());
 		all.addAll(getWebsearchSettings());
 		return Collections.unmodifiableList(all);
@@ -733,4 +734,12 @@ public class ApplicationSettings {
 		return str.trim();
 	}
 
+	private int parseInt(String string, int defaultValue) {
+		try {
+			return Integer.parseInt(string);
+		} catch (NumberFormatException e) {
+			return defaultValue;
+		}
+	}
+
 }

app/src/main/java/org/transdroid/core/gui/DetailsFragment.java

@@ -182,9 +182,11 @@ public class DetailsFragment extends Fragment implements OnTrackersUpdatedListen
 		// Refresh the detailed statistics (errors) and list of files
 		torrentDetails = null;
 		torrentFiles = null;
+		if (getTasksExecutor() != null) {
 			getTasksExecutor().refreshTorrentDetails(torrent);
 			getTasksExecutor().refreshTorrentFiles(torrent);
 		}
+	}
 
 	/**
 	 * Updates the details adapter to show the list of trackers and tracker errors.
@@ -366,41 +368,49 @@ public class DetailsFragment extends Fragment implements OnTrackersUpdatedListen
 
 	@OptionsItem(R.id.action_resume)
 	protected void resumeTorrent() {
+		if (getTasksExecutor() != null)
 			getTasksExecutor().resumeTorrent(torrent);
 	}
 
 	@OptionsItem(R.id.action_pause)
 	protected void pauseTorrent() {
+		if (getTasksExecutor() != null)
 			getTasksExecutor().pauseTorrent(torrent);
 	}
 
 	@OptionsItem(R.id.action_start_direct)
 	protected void startTorrentDirect() {
+		if (getTasksExecutor() != null)
 			getTasksExecutor().startTorrent(torrent, false);
 	}
 
 	@OptionsItem(R.id.action_start_default)
 	protected void startTorrentDefault() {
+		if (getTasksExecutor() != null)
 			getTasksExecutor().startTorrent(torrent, false);
 	}
 
 	@OptionsItem(R.id.action_start_forced)
 	protected void startTorrentForced() {
+		if (getTasksExecutor() != null)
 			getTasksExecutor().startTorrent(torrent, true);
 	}
 
 	@OptionsItem(R.id.action_stop)
 	protected void stopTorrent() {
+		if (getTasksExecutor() != null)
 			getTasksExecutor().stopTorrent(torrent);
 	}
 
 	@OptionsItem(R.id.action_remove_default)
 	protected void removeTorrentDefault() {
+		if (getTasksExecutor() != null)
 			getTasksExecutor().removeTorrent(torrent, false);
 	}
 
 	@OptionsItem(R.id.action_remove_withdata)
 	protected void removeTorrentWithData() {
+		if (getTasksExecutor() != null)
 			getTasksExecutor().removeTorrent(torrent, true);
 	}
 
@@ -413,6 +423,7 @@ public class DetailsFragment extends Fragment implements OnTrackersUpdatedListen
 
 	@OptionsItem(R.id.action_forcerecheck)
 	protected void setForceRecheck() {
+		if (getTasksExecutor() != null)
 			getTasksExecutor().forceRecheckTorrent(torrent);
 	}
 
@@ -435,6 +446,7 @@ public class DetailsFragment extends Fragment implements OnTrackersUpdatedListen
 		if (torrent == null) {
 			return;
 		}
+		if (getTasksExecutor() != null)
 			getTasksExecutor().updateLabel(torrent, newLabel);
 	}
 
@@ -443,6 +455,7 @@ public class DetailsFragment extends Fragment implements OnTrackersUpdatedListen
 		if (torrent == null) {
 			return;
 		}
+		if (getTasksExecutor() != null)
 			getTasksExecutor().updateTrackers(torrent, updatedTrackers);
 	}
 
@@ -451,6 +464,7 @@ public class DetailsFragment extends Fragment implements OnTrackersUpdatedListen
 		if (torrent == null) {
 			return;
 		}
+		if (getTasksExecutor() != null)
 			getTasksExecutor().updateLocation(torrent, newLocation);
 	}
 
@@ -613,6 +627,7 @@ public class DetailsFragment extends Fragment implements OnTrackersUpdatedListen
 				if (itemId == R.id.action_priority_high) {
 					priority = Priority.High;
 				}
+				if (getTasksExecutor() != null)
 					getTasksExecutor().updatePriority(torrent, checked, priority);
 				mode.finish();
 				return true;

app/src/main/java/org/transdroid/core/gui/search/SearchActivity.java

@@ -25,6 +25,7 @@ import android.os.Bundle;
 import android.provider.SearchRecentSuggestions;
 import android.support.v4.view.MenuItemCompat;
 import android.support.v7.app.AppCompatActivity;
+import android.support.v7.view.ContextThemeWrapper;
 import android.support.v7.widget.Toolbar;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -165,11 +166,11 @@ public class SearchActivity extends AppCompatActivity {
 		searchToolbar.inflateMenu(R.menu.activity_search);
 		// Add an expandable SearchView to the action bar
 		MenuItem item = menu.findItem(R.id.action_search);
-		final SearchView searchView = new SearchView(getSupportActionBar().getThemedContext());
+		final SearchView searchView = new SearchView(searchToolbar.getContext());
 		searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
 		searchView.setQueryRefinementEnabled(true);
-		searchView.setIconified(false);
+		//searchView.setIconified(false);
-		searchView.setIconifiedByDefault(false);
+		//searchView.setIconifiedByDefault(false);
 		MenuItemCompat.setActionView(item, searchView);
 		searchMenu = item;
 		return true;