Added spinner for auto discovery

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

@@ -81,6 +81,7 @@ public class FragmentAccount extends FragmentBase {
 
     private EditText etDomain;
     private Button btnAutoConfig;
+    private ContentLoadingProgressBar pbAutoConfig;
 
     private EditText etHost;
     private RadioGroup rgEncryption;
@@ -172,6 +173,7 @@ public class FragmentAccount extends FragmentBase {
 
         etDomain = view.findViewById(R.id.etDomain);
         btnAutoConfig = view.findViewById(R.id.btnAutoConfig);
+        pbAutoConfig = view.findViewById(R.id.pbAutoConfig);
 
         etHost = view.findViewById(R.id.etHost);
         etPort = view.findViewById(R.id.etPort);
@@ -394,6 +396,7 @@ public class FragmentAccount extends FragmentBase {
         Helper.setViewsEnabled(view, false);
 
         btnAutoConfig.setEnabled(false);
+        pbAutoConfig.setVisibility(View.GONE);
 
         rgEncryption.setVisibility(View.GONE);
         cbInsecure.setVisibility(View.GONE);
@@ -432,12 +435,14 @@ public class FragmentAccount extends FragmentBase {
             protected void onPreExecute(Bundle args) {
                 etDomain.setEnabled(false);
                 btnAutoConfig.setEnabled(false);
+                pbAutoConfig.setVisibility(View.VISIBLE);
             }
 
             @Override
             protected void onPostExecute(Bundle args) {
                 etDomain.setEnabled(true);
                 btnAutoConfig.setEnabled(true);
+                pbAutoConfig.setVisibility(View.GONE);
             }
 
             @Override

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

@@ -92,6 +92,7 @@ public class FragmentIdentity extends FragmentBase {
     private Spinner spProvider;
     private EditText etDomain;
     private Button btnAutoConfig;
+    private ContentLoadingProgressBar pbAutoConfig;
     private EditText etHost;
     private RadioGroup rgEncryption;
     private CheckBox cbInsecure;
@@ -171,6 +172,7 @@ public class FragmentIdentity extends FragmentBase {
 
         etDomain = view.findViewById(R.id.etDomain);
         btnAutoConfig = view.findViewById(R.id.btnAutoConfig);
+        pbAutoConfig = view.findViewById(R.id.pbAutoConfig);
 
         etHost = view.findViewById(R.id.etHost);
         rgEncryption = view.findViewById(R.id.rgEncryption);
@@ -430,6 +432,7 @@ public class FragmentIdentity extends FragmentBase {
         // Initialize
         Helper.setViewsEnabled(view, false);
         btnAutoConfig.setEnabled(false);
+        pbAutoConfig.setVisibility(View.GONE);
         cbInsecure.setVisibility(View.GONE);
         tilPassword.setEndIconMode(id < 0 ? END_ICON_PASSWORD_TOGGLE : END_ICON_NONE);
 
@@ -461,12 +464,14 @@ public class FragmentIdentity extends FragmentBase {
             protected void onPreExecute(Bundle args) {
                 etDomain.setEnabled(false);
                 btnAutoConfig.setEnabled(false);
+                pbAutoConfig.setVisibility(View.VISIBLE);
             }
 
             @Override
             protected void onPostExecute(Bundle args) {
                 etDomain.setEnabled(true);
                 btnAutoConfig.setEnabled(true);
+                pbAutoConfig.setVisibility(View.GONE);
             }
 
             @Override

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

@@ -85,6 +85,17 @@
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@id/etDomain" />
 
+            <eu.faircode.email.ContentLoadingProgressBar
+                android:id="@+id/pbAutoConfig"
+                style="@style/Base.Widget.AppCompat.ProgressBar"
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:layout_marginStart="12dp"
+                android:indeterminate="true"
+                app:layout_constraintBottom_toBottomOf="@id/btnAutoConfig"
+                app:layout_constraintStart_toEndOf="@id/btnAutoConfig"
+                app:layout_constraintTop_toTopOf="@id/btnAutoConfig" />
+
             <!-- IMAP/POP3 -->
 
             <TextView

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

@@ -286,6 +286,17 @@
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@id/etDomain" />
 
+            <eu.faircode.email.ContentLoadingProgressBar
+                android:id="@+id/pbAutoConfig"
+                style="@style/Base.Widget.AppCompat.ProgressBar"
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:layout_marginStart="12dp"
+                android:indeterminate="true"
+                app:layout_constraintBottom_toBottomOf="@id/btnAutoConfig"
+                app:layout_constraintStart_toEndOf="@id/btnAutoConfig"
+                app:layout_constraintTop_toTopOf="@id/btnAutoConfig" />
+
             <TextView
                 android:id="@+id/tvSmtp"
                 android:layout_width="wrap_content"