Allow disabling identities hint

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

@@ -60,6 +60,9 @@ public class FragmentDialogIdentity extends FragmentDialogBase {
         final Group grpNoIdentities = dview.findViewById(R.id.grpNoIdentities);
         final ContentLoadingProgressBar pbWait = dview.findViewById(R.id.pbWait);
 
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
+        boolean identities_primary_hint = prefs.getBoolean("identities_primary_hint", false);
+
         spIdentity.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
             @Override
             public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
@@ -81,18 +84,20 @@ public class FragmentDialogIdentity extends FragmentDialogBase {
             }
         });
 
+        tvPrimaryHint.setVisibility(identities_primary_hint ? View.GONE : View.VISIBLE);
         tvPrimaryHint.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                startActivity(new Intent(getContext(), ActivitySetup.class)
+                prefs.edit().putBoolean("identities_primary_hint", true).apply();
+                startActivity(new Intent(v.getContext(), ActivitySetup.class)
                         .putExtra("manual", true));
+                tvPrimaryHint.setVisibility(View.GONE);
             }
         });
 
         cbNotAgain.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-                SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
                 prefs.edit().putBoolean("identities_asked", isChecked).apply();
             }
         });

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

@@ -143,7 +143,8 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
             "reply_hint", "html_always_images", "open_full_confirmed", "print_html_confirmed", "reformatted_hint",
             "selected_folders", "move_1_confirmed", "move_n_confirmed",
             "last_search_senders", "last_search_recipients", "last_search_subject", "last_search_keywords", "last_search_message", "last_search",
-            "identities_asked", "cc_bcc", "inline_image_hint", "compose_reference", "send_dialog",
+            "identities_asked", "identities_primary_hint",
+            "cc_bcc", "inline_image_hint", "compose_reference", "send_dialog",
             "setup_reminder", "setup_advanced"
     };