Assorted crash fixes

mastodon/build.gradle

@@ -90,7 +90,7 @@ dependencies {
 	implementation 'me.grishka.litex:viewpager:1.0.0'
 	implementation 'me.grishka.litex:viewpager2:1.0.0'
 	implementation 'me.grishka.litex:palette:1.0.0'
-	implementation 'me.grishka.appkit:appkit:1.4.3'
+	implementation 'me.grishka.appkit:appkit:1.4.4'
 	implementation 'com.google.code.gson:gson:2.8.9'
 	implementation 'org.jsoup:jsoup:1.14.3'
 	implementation 'com.squareup:otto:1.3.8'

mastodon/src/main/java/org/joinmastodon/android/api/session/AccountSessionManager.java

@@ -124,6 +124,7 @@ public class AccountSessionManager{
 
 	public void addAccount(Instance instance, Token token, Account self, Application app, AccountActivationInfo activationInfo){
 		instances.put(instance.getDomain(), instance);
+		runOnDbThread(db->insertInstanceIntoDatabase(db, instance.getDomain(), instance, List.of(), 0));
 		AccountSession session=new AccountSession(token, self, app, instance.getDomain(), activationInfo==null, activationInfo);
 		sessions.put(session.getID(), session);
 		lastActiveAccountID=session.getID();
@@ -349,6 +350,7 @@ public class AccountSessionManager{
 					@Override
 					public void onSuccess(Instance instance){
 						instances.put(domain, instance);
+						runOnDbThread(db->insertInstanceIntoDatabase(db, domain, instance, List.of(), 0));
 						updateInstanceEmojis(instance, domain);
 					}
 
@@ -581,6 +583,12 @@ public class AccountSessionManager{
 		runOnDbThread(db->db.delete("dismissed_donation_campaigns", null, null));
 	}
 
+	public void clearInstanceInfo(){
+		SQLiteDatabase db=getOrOpenDatabase();
+		db.delete("instances", null, null);
+		db.close();
+	}
+
 	private static void insertInstanceIntoDatabase(SQLiteDatabase db, String domain, Instance instance, List<Emoji> emojis, long lastUpdated){
 		ContentValues values=new ContentValues();
 		values.put("domain", domain);

mastodon/src/main/java/org/joinmastodon/android/fragments/settings/SettingsDebugFragment.java

@@ -37,7 +37,8 @@ public class SettingsDebugFragment extends BaseSettingsFragment<Void>{
 				new ListItem<>("Reset search info banners", null, this::onResetDiscoverBannersClick),
 				new ListItem<>("Reset pre-reply sheets", null, this::onResetPreReplySheetsClick),
 				new ListItem<>("Clear dismissed donation campaigns", null, this::onClearDismissedCampaignsClick),
-				donationsStagingItem=new CheckableListItem<>("Use staging environment for donations", "Restart app to apply", CheckableListItem.Style.SWITCH, getPrefs().getBoolean("donationsStaging", false), this::toggleCheckableItem)
+				donationsStagingItem=new CheckableListItem<>("Use staging environment for donations", "Restart app to apply", CheckableListItem.Style.SWITCH, getPrefs().getBoolean("donationsStaging", false), this::toggleCheckableItem),
+				new ListItem<>("Delete cached instance info", null, this::onDeleteInstanceInfoClick)
 		));
 		if(!GithubSelfUpdater.needSelfUpdating()){
 			resetUpdateItem.isEnabled=selfUpdateItem.isEnabled=false;
@@ -95,6 +96,11 @@ public class SettingsDebugFragment extends BaseSettingsFragment<Void>{
 		Toast.makeText(getActivity(), "Dismissed campaigns cleared. Restart app to see your current campaign, if any", Toast.LENGTH_LONG).show();
 	}
 
+	private void onDeleteInstanceInfoClick(ListItem<?> item){
+		AccountSessionManager.getInstance().clearInstanceInfo();
+		Toast.makeText(getActivity(), "Instances removed from database", Toast.LENGTH_LONG).show();
+	}
+
 	private void restartUI(){
 		Bundle args=new Bundle();
 		args.putString("account", accountID);

mastodon/src/main/java/org/joinmastodon/android/ui/viewholders/LinkCardHolder.java

@@ -93,10 +93,12 @@ public class LinkCardHolder<T extends LinkCardHolder.LinkCardProvider> extends S
 			authorChip.setVisibility(View.VISIBLE);
 			authorBefore.setVisibility(View.VISIBLE);
 			String[] authorParts=itemView.getContext().getString(R.string.article_by_author, "{author}").split("\\{author\\}");
-			String before=authorParts[0].trim();
+			String before=authorParts.length>0 ? authorParts[0].trim() : "";
 			String after=authorParts.length>1 ? authorParts[1].trim() : "";
 			if(!TextUtils.isEmpty(before)){
 				authorBefore.setText(before);
+			}else{
+				authorBefore.setText("");
 			}
 			if(TextUtils.isEmpty(after)){
 				authorAfter.setVisibility(View.GONE);