Added push messages remark

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

@@ -66,6 +66,7 @@ public class FragmentFolder extends FragmentBase {
     private CheckBox cbPoll;
     private EditText etPoll;
     private TextView tvPoll;
+    private TextView tvPollRemark;
     private CheckBox cbDownload;
     private CheckBox cbAutoClassifySource;
     private CheckBox cbAutoClassifyTarget;
@@ -129,6 +130,7 @@ public class FragmentFolder extends FragmentBase {
         cbPoll = view.findViewById(R.id.cbPoll);
         etPoll = view.findViewById(R.id.etPoll);
         tvPoll = view.findViewById(R.id.tvPoll);
+        tvPollRemark = view.findViewById(R.id.tvPollRemark);
         cbDownload = view.findViewById(R.id.cbDownload);
         cbAutoClassifySource = view.findViewById(R.id.cbAutoClassifySource);
         cbAutoClassifyTarget = view.findViewById(R.id.cbAutoClassifyTarget);
@@ -166,16 +168,20 @@ public class FragmentFolder extends FragmentBase {
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                 cbPoll.setEnabled(isChecked);
-                etPoll.setEnabled(isChecked);
-                tvPoll.setEnabled(isChecked);
-                grpPoll.setVisibility(imap && isChecked && cbPoll.isChecked() ? View.VISIBLE : View.GONE);
+                tvPollRemark.setVisibility(imap && cbPoll.isEnabled() && !cbPoll.isChecked()
+                        ? View.VISIBLE : View.GONE);
+                grpPoll.setVisibility(imap && cbPoll.isEnabled() && cbPoll.isChecked()
+                        ? View.VISIBLE : View.GONE);
             }
         });
 
         cbPoll.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-                grpPoll.setVisibility(imap && cbPoll.isEnabled() && isChecked ? View.VISIBLE : View.GONE);
+                tvPollRemark.setVisibility(imap && cbPoll.isEnabled() && !cbPoll.isChecked()
+                        ? View.VISIBLE : View.GONE);
+                grpPoll.setVisibility(imap && cbPoll.isEnabled() && cbPoll.isChecked()
+                        ? View.VISIBLE : View.GONE);
             }
         });
 
@@ -321,9 +327,10 @@ public class FragmentFolder extends FragmentBase {
 
                 etName.setEnabled(folder == null || EntityFolder.USER.equals(folder.type));
                 cbPoll.setEnabled(cbSynchronize.isChecked());
-                etPoll.setEnabled(cbSynchronize.isChecked());
-                tvPoll.setEnabled(cbSynchronize.isChecked());
-                grpPoll.setVisibility(imap && cbPoll.isEnabled() && cbPoll.isChecked() ? View.VISIBLE : View.GONE);
+                tvPollRemark.setVisibility(imap && cbPoll.isEnabled() && !cbPoll.isChecked()
+                        ? View.VISIBLE : View.GONE);
+                grpPoll.setVisibility(imap && cbPoll.isEnabled() && cbPoll.isChecked()
+                        ? View.VISIBLE : View.GONE);
                 cbAutoClassifySource.setEnabled(cbDownload.isChecked());
                 cbAutoClassifyTarget.setEnabled(cbDownload.isChecked() && cbAutoClassifySource.isChecked());
                 cbAutoClassifySource.setVisibility(canAutoClassify ? View.VISIBLE : View.GONE);

app/src/main/res/layout/fragment_folder.xml

@@ -188,6 +188,18 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintTop_toTopOf="@+id/etPoll" />
 
+        <eu.faircode.email.FixedTextView
+            android:id="@+id/tvPollRemark"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="6dp"
+            android:text="@string/title_poll_folder_remark"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textStyle="italic"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/etPoll" />
+
         <CheckBox
             android:id="@+id/cbDownload"
             android:layout_width="wrap_content"
@@ -195,7 +207,7 @@
             android:layout_marginTop="12dp"
             android:text="@string/title_download_folder"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/etPoll" />
+            app:layout_constraintTop_toBottomOf="@id/tvPollRemark" />
 
         <CheckBox
             android:id="@+id/cbAutoClassifySource"

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

@@ -800,6 +800,7 @@
     <string name="title_navigation_folder">Show in navigation menu</string>
     <string name="title_synchronize_folder">Synchronize (receive messages)</string>
     <string name="title_poll_folder">Check periodically instead of continuous synchronize</string>
+    <string name="title_poll_folder_remark">Most email servers allow push messages for a handful of folders only!</string>
     <string name="title_download_folder">Automatically download message texts and attachments</string>
     <string name="title_notify_folder">Notify on new messages</string>
     <string name="title_auto_classify_source">Classify new messages in this folder</string>