Added simple task/destroyed

app/src/main/java/eu/faircode/email/ActivityEML.java

@@ -677,6 +677,11 @@ public class ActivityEML extends ActivityBase {
                 ToastEx.makeText(ActivityEML.this, name, Toast.LENGTH_LONG).show();
             }
 
+            @Override
+            protected void onDestroyed(Bundle args) {
+                toast = null;
+            }
+
             @Override
             protected void onException(Bundle args, @NonNull Throwable ex) {
                 if (ex instanceof IllegalArgumentException)

app/src/main/java/eu/faircode/email/ActivitySetup.java

@@ -781,6 +781,11 @@ public class ActivitySetup extends ActivityBase implements FragmentManager.OnBac
                 ToastEx.makeText(ActivitySetup.this, R.string.title_setup_exported, Toast.LENGTH_LONG).show();
             }
 
+            @Override
+            protected void onDestroyed(Bundle args) {
+                toast = null;
+            }
+
             @Override
             protected void onException(Bundle args, Throwable ex) {
                 boolean expected =

app/src/main/java/eu/faircode/email/AdapterRule.java

@@ -411,6 +411,11 @@ public class AdapterRule extends RecyclerView.Adapter<AdapterRule.ViewHolder> {
                                     Toast.LENGTH_LONG).show();
                         }
 
+                        @Override
+                        protected void onDestroyed(Bundle args) {
+                            toast = null;
+                        }
+
                         @Override
                         protected void onException(Bundle args, Throwable ex) {
                             Log.unexpectedError(parentFragment.getParentFragmentManager(), ex, false);

app/src/main/java/eu/faircode/email/FragmentCompose.java

@@ -2384,6 +2384,11 @@ public class FragmentCompose extends FragmentBase {
                         activity.invalidateOptionsMenu();
                     }
 
+                    @Override
+                    protected void onDestroyed(Bundle args) {
+                        toast = null;
+                    }
+
                     @Override
                     protected void onException(Bundle args, Throwable ex) {
                         etBody.setSelection(paragraph.second);
@@ -2456,6 +2461,11 @@ public class FragmentCompose extends FragmentBase {
                 }
             }
 
+            @Override
+            protected void onDestroyed(Bundle args) {
+                toast = null;
+            }
+
             @Override
             protected void onException(Bundle args, Throwable ex) {
                 Throwable exex = new Throwable("LanguageTool", ex);

app/src/main/java/eu/faircode/email/FragmentContacts.java

@@ -482,6 +482,11 @@ public class FragmentContacts extends FragmentBase {
                 ToastEx.makeText(getContext(), R.string.title_completed, Toast.LENGTH_LONG).show();
             }
 
+            @Override
+            protected void onDestroyed(Bundle args) {
+                toast = null;
+            }
+
             @Override
             protected void onException(Bundle args, Throwable ex) {
                 if (ex instanceof NoStreamException)
@@ -576,6 +581,11 @@ public class FragmentContacts extends FragmentBase {
                 ToastEx.makeText(getContext(), R.string.title_completed, Toast.LENGTH_LONG).show();
             }
 
+            @Override
+            protected void onDestroyed(Bundle args) {
+                toast = null;
+            }
+
             @Override
             protected void onException(Bundle args, Throwable ex) {
                 Log.unexpectedError(getParentFragmentManager(), ex);

app/src/main/java/eu/faircode/email/SimpleTask.java

@@ -155,6 +155,7 @@ public abstract class SimpleTask<T> implements LifecycleObserver {
             public void onDestroy() {
                 EntityLog.log(context, EntityLog.Type.Debug, "Owner gone task=" + name);
                 destroyed = true;
+                onDestroyed(args);
                 owner.getLifecycle().removeObserver(this);
             }
         };
@@ -225,6 +226,7 @@ public abstract class SimpleTask<T> implements LifecycleObserver {
                                         state = owner.getLifecycle().getCurrentState();
                                         if (state.equals(Lifecycle.State.DESTROYED)) {
                                             Log.i("Destroyed task " + name);
+                                            onDestroyed(args);
                                             owner.getLifecycle().removeObserver(this);
                                             cleanup(context);
                                         } else if (state.isAtLeast(Lifecycle.State.RESUMED)) {
@@ -366,6 +368,9 @@ public abstract class SimpleTask<T> implements LifecycleObserver {
     protected void onPostExecute(Bundle args) {
     }
 
+    protected void onDestroyed(Bundle args) {
+    }
+
     @Override
     public String toString() {
         long now = new Date().getTime();