Fix issue #241 - Store instance info in sharedpref

app/src/main/java/app/fedilab/android/BaseMainActivity.java

@@ -786,7 +786,12 @@ public abstract class BaseMainActivity extends BaseActivity implements NetworkSt
                 new ViewModelProvider(BaseMainActivity.this).get(InstancesVM.class).getEmoji(currentInstance);
                 //Retrieve instance info
                 new ViewModelProvider(BaseMainActivity.this).get(InstancesVM.class).getInstance(currentInstance)
-                        .observe(BaseMainActivity.this, instance -> instanceInfo = instance.info);
+                        .observe(BaseMainActivity.this, instance -> {
+                            instanceInfo = instance.info;
+                            SharedPreferences.Editor editor = sharedpreferences.edit();
+                            editor.putString(getString(R.string.INSTANCE_INFO) + MainActivity.currentInstance, Instance.serialize(instanceInfo));
+                            editor.apply();
+                        });
                 //Retrieve filters
                 new ViewModelProvider(BaseMainActivity.this).get(AccountsVM.class).getFilters(currentInstance, currentToken)
                         .observe(BaseMainActivity.this, filters -> mainFilters = filters);

app/src/main/java/app/fedilab/android/activities/ComposeActivity.java

@@ -26,6 +26,7 @@ import android.content.BroadcastReceiver;
 import android.content.ClipData;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.graphics.drawable.ColorDrawable;
 import android.net.Uri;
@@ -48,6 +49,7 @@ import androidx.appcompat.app.AlertDialog;
 import androidx.core.content.ContextCompat;
 import androidx.lifecycle.ViewModelProvider;
 import androidx.localbroadcastmanager.content.LocalBroadcastManager;
+import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.work.Data;
 import androidx.work.OneTimeWorkRequest;
@@ -69,6 +71,7 @@ import app.fedilab.android.R;
 import app.fedilab.android.client.entities.api.Attachment;
 import app.fedilab.android.client.entities.api.Context;
 import app.fedilab.android.client.entities.api.EmojiInstance;
+import app.fedilab.android.client.entities.api.Instance;
 import app.fedilab.android.client.entities.api.Mention;
 import app.fedilab.android.client.entities.api.ScheduledStatus;
 import app.fedilab.android.client.entities.api.Status;
@@ -234,6 +237,14 @@ public class ComposeActivity extends BaseActivity implements ComposeAdapter.Mana
                 }
             }).start();
         }
+        final SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(ComposeActivity.this);
+        if (MainActivity.instanceInfo == null) {
+            String instanceInfo = sharedpreferences.getString(getString(R.string.INSTANCE_INFO) + instance, null);
+            if (instanceInfo != null) {
+                MainActivity.instanceInfo = Instance.restore(instanceInfo);
+            }
+        }
+
         StatusesVM statusesVM = new ViewModelProvider(ComposeActivity.this).get(StatusesVM.class);
         //Empty compose
         List<Status> statusDraftList = new ArrayList<>();

app/src/main/java/app/fedilab/android/client/entities/api/Instance.java

@@ -1,5 +1,6 @@
 package app.fedilab.android.client.entities.api;
 
+import com.google.gson.Gson;
 import com.google.gson.annotations.SerializedName;
 
 import java.io.Serializable;
@@ -113,6 +114,25 @@ public class Instance implements Serializable {
         return mimeTypes;
     }
 
+
+    public static String serialize(Instance instance) {
+        Gson gson = new Gson();
+        try {
+            return gson.toJson(instance);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+    public static Instance restore(String serialized) {
+        Gson gson = new Gson();
+        try {
+            return gson.fromJson(serialized, Instance.class);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
     public static class Configuration implements Serializable {
         @SerializedName("statuses")
         public StatusesConf statusesConf;

app/src/main/res/values/strings.xml

@@ -895,7 +895,7 @@
     <string name="SET_ACCOUNTS_PER_CALL" translatable="false">SET_ACCOUNTS_PER_CALL</string>
     <string name="SET_STATUSES_PER_CALL" translatable="false">SET_STATUSES_PER_CALL</string>
     <string name="SET_NOTIFICATIONS_PER_CALL" translatable="false">SET_NOTIFICATIONS_PER_CALL</string>
-
+    <string name="INSTANCE_INFO" translatable="false">INSTANCE_INFO</string>
     <string name="SET_INVIDIOUS" translatable="false">SET_INVIDIOUS</string>
     <string name="SET_INVIDIOUS_HOST" translatable="false">SET_INVIDIOUS_HOST</string>
     <string name="DEFAULT_INVIDIOUS_HOST" translatable="false">invidious.snopyta.org</string>