Add little dropdown icon to server selector header to show interactivity.

ultrasonic/src/main/kotlin/org/moire/ultrasonic/activity/NavigationActivity.kt

@@ -338,11 +338,18 @@ class NavigationActivity : AppCompatActivity() {
 
         selectServerButton =
             navigationView?.getHeaderView(0)?.findViewById(R.id.header_select_server)
-        selectServerButton?.setOnClickListener {
+        val dropDownButton: ImageView? =
+            navigationView?.getHeaderView(0)?.findViewById(R.id.edit_server_button)
+
+        val onClick: (View) -> Unit = {
             if (drawerLayout?.isDrawerVisible(GravityCompat.START) == true)
                 this.drawerLayout?.closeDrawer(GravityCompat.START)
             navController.navigate(R.id.serverSelectorFragment)
         }
+
+        selectServerButton?.setOnClickListener(onClick)
+        dropDownButton?.setOnClickListener(onClick)
+
         headerBackgroundImage =
             navigationView?.getHeaderView(0)?.findViewById(R.id.img_header_bg)
     }
@@ -352,10 +359,10 @@ class NavigationActivity : AppCompatActivity() {
     }
 
     private val closeNavigationDrawerOnBack = object : OnBackPressedCallback(true) {
-            override fun handleOnBackPressed() {
-                drawerLayout?.closeDrawer(GravityCompat.START)
-            }
+        override fun handleOnBackPressed() {
+            drawerLayout?.closeDrawer(GravityCompat.START)
         }
+    }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         val retValue = super.onCreateOptionsMenu(menu)

ultrasonic/src/main/res/drawable/arrow_drop_down.xml

@@ -0,0 +1,5 @@
+<vector android:autoMirrored="true" android:height="24dp"
+    android:tint="#000000" android:viewportHeight="24"
+    android:viewportWidth="24" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M7,10l5,5 5,-5z"/>
+</vector>

ultrasonic/src/main/res/layout/navigation_activity.xml

@@ -42,6 +42,7 @@
     <com.google.android.material.navigation.NavigationView
         a:id="@+id/nav_view"
         a:layout_width="wrap_content"
+        a:maxWidth="300dp"
         a:layout_height="match_parent"
         a:layout_gravity="start"
         a:fitsSystemWindows="true"

ultrasonic/src/main/res/layout/navigation_header.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
-    xmlns:a="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:a="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     a:id="@+id/view_container"
@@ -13,19 +12,18 @@
         a:id="@+id/img_header_bg"
         a:layout_width="match_parent"
         a:layout_height="0dp"
+        a:importantForAccessibility="no"
         a:scaleType="fitXY"
         a:src="@drawable/ic_header_bg"
         app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        a:importantForAccessibility="no" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <Button
         a:id="@+id/header_select_server"
         style="@style/Widget.Material3.Button.TextButton.Icon"
-        a:layout_width="match_parent"
+        a:layout_width="0dp"
         a:layout_height="wrap_content"
-        a:layout_marginStart="3dp"
-        a:layout_marginTop="24dp"
+        a:layout_marginTop="48dp"
         a:background="@drawable/default_ripple"
         a:gravity="center_vertical"
         a:paddingHorizontal="22dp"
@@ -39,9 +37,27 @@
         app:iconPadding="12dp"
         app:iconSize="24dp"
         app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@id/edit_server_button"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
         tools:iconTint="@color/selected_menu_dark"
         tools:textColor="@color/selected_menu_dark" />
 
+    <ImageView
+        a:id="@+id/edit_server_button"
+        style="@style/Widget.Material3.Button.TextButton.Icon"
+        a:layout_width="wrap_content"
+        a:layout_height="0dp"
+        a:layout_marginTop="6dp"
+        a:layout_marginBottom="6dp"
+        a:contentDescription="@string/server_menu.edit"
+        a:maxHeight="32dp"
+        a:src="@drawable/arrow_drop_down"
+        a:text="@null"
+        app:layout_constraintBottom_toBottomOf="@id/header_select_server"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@id/header_select_server"
+        app:layout_constraintTop_toTopOf="@id/header_select_server"
+        app:tint="@color/selected_menu_dark" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>