add option to set default start tab

app/src/main/java/com/github/libretube/constants/PreferenceKeys.kt

@@ -22,6 +22,7 @@ object PreferenceKeys {
     const val BREAK_REMINDER = "break_reminder"
     const val SAVE_FEED = "save_feed"
     const val NAVBAR_ITEMS = "navbar_items"
+    const val START_FRAGMENT = "start_fragment"
 
     /**
      * Appearance

app/src/main/java/com/github/libretube/ui/adapters/NavBarOptionsAdapter.kt

@@ -10,7 +10,8 @@ import com.github.libretube.databinding.NavOptionsItemBinding
 import com.github.libretube.ui.viewholders.NavBarOptionsViewHolder
 
 class NavBarOptionsAdapter(
-    val items: MutableList<MenuItem>
+    val items: MutableList<MenuItem>,
+    var selectedHomeTabId: Int
 ) : RecyclerView.Adapter<NavBarOptionsViewHolder>() {
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NavBarOptionsViewHolder {
@@ -31,7 +32,28 @@ class NavBarOptionsAdapter(
         holder.binding.apply {
             title.text = item.title
             checkbox.isChecked = item.isVisible
+            home.setImageResource(
+                if (item.itemId == selectedHomeTabId) R.drawable.ic_home else R.drawable.ic_home_outlined
+            )
+            home.setOnClickListener {
+                if (selectedHomeTabId == item.itemId) {
+                    return@setOnClickListener
+                }
+                if (!item.isVisible) {
+                    Toast.makeText(root.context, R.string.not_enabled, Toast.LENGTH_SHORT).show()
+                    return@setOnClickListener
+                }
+                val oldSelection = items.indexOfFirst { it.itemId == selectedHomeTabId }
+                selectedHomeTabId = item.itemId
+                listOf(position, oldSelection).forEach {
+                    notifyItemChanged(it)
+                }
+            }
             checkbox.setOnClickListener {
+                if (item.itemId == selectedHomeTabId) {
+                    Toast.makeText(root.context, R.string.select_other_start_tab, Toast.LENGTH_SHORT).show()
+                    return@setOnClickListener
+                }
                 if (!checkbox.isChecked && getVisibleItemsCount() < 2) {
                     checkbox.isChecked = true
                     Toast.makeText(
@@ -41,7 +63,7 @@ class NavBarOptionsAdapter(
                     ).show()
                     return@setOnClickListener
                 }
-                items[position].isVisible = checkbox.isChecked
+                item.isVisible = checkbox.isChecked
             }
         }
     }

app/src/main/java/com/github/libretube/ui/dialogs/NavBarOptionsDialog.kt

@@ -20,7 +20,7 @@ class NavBarOptionsDialog : DialogFragment() {
 
         val options = NavBarHelper.getNavBarItems(requireContext())
 
-        val adapter = NavBarOptionsAdapter(options.toMutableList())
+        val adapter = NavBarOptionsAdapter(options.toMutableList(), NavBarHelper.getStartFragmentId(requireContext()))
 
         val itemTouchCallback = object : ItemTouchHelper.Callback() {
             override fun getMovementFlags(
@@ -63,6 +63,7 @@ class NavBarOptionsDialog : DialogFragment() {
             .setView(binding.root)
             .setPositiveButton(R.string.okay) { _, _ ->
                 NavBarHelper.setNavBarItems(adapter.items, requireContext())
+                NavBarHelper.setStartFragment(requireContext(), adapter.selectedHomeTabId)
                 RequireRestartDialog()
                     .show(requireParentFragment().childFragmentManager, null)
             }

app/src/main/java/com/github/libretube/util/NavBarHelper.kt

@@ -106,6 +106,21 @@ object NavBarHelper {
                 ).icon = menuItem.icon
             }
         }
-        return navBarItems.first { it.isVisible }.itemId
+        return getStartFragmentId(bottomNav.context)
+    }
+
+    fun getStartFragmentId(context: Context): Int {
+        val pref = PreferenceHelper.getInt(PreferenceKeys.START_FRAGMENT, Int.MAX_VALUE)
+        val defaultNavItems = getDefaultNavBarItems(context)
+        return if (pref == Int.MAX_VALUE) {
+            getNavBarItems(context).first { it.isVisible }.itemId
+        } else {
+            defaultNavItems.get(pref).itemId
+        }
+    }
+
+    fun setStartFragment(context: Context, itemId: Int) {
+        val index = getDefaultNavBarItems(context).indexOfFirst { it.itemId == itemId }
+        PreferenceHelper.putInt(PreferenceKeys.START_FRAGMENT, index)
     }
 }

app/src/main/java/com/github/libretube/util/PreferenceHelper.kt

@@ -37,6 +37,10 @@ object PreferenceHelper {
         editor.putBoolean(key, value).commit()
     }
 
+    fun putInt(key: String, value: Int) {
+        editor.putInt(key, value).commit()
+    }
+
     fun getString(key: String?, defValue: String): String {
         return settings.getString(key, defValue) ?: defValue
     }

app/src/main/res/drawable/ic_home_outlined.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="?attr/colorControlNormal"
+    android:viewportWidth="48"
+    android:viewportHeight="48">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M11,39h7.5L18.5,26.5h11L29.5,39L37,39L37,19.5L24,9.75 11,19.5ZM8,42L8,18L24,6l16,12v24L26.5,42L26.5,29.5h-5L21.5,42ZM24,24.35Z" />
+</vector>

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

@@ -11,6 +11,14 @@
     android:paddingEnd="0dp"
     tools:gravity="start|center_vertical">
 
+    <ImageView
+        android:id="@+id/home"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:background="?attr/selectableItemBackgroundBorderless"
+        android:paddingHorizontal="10dp"
+        android:src="@drawable/ic_home_outlined"/>
+
     <com.google.android.material.checkbox.MaterialCheckBox
         android:id="@+id/checkbox"
         style="@style/Widget.Material3.CompoundButton.CheckBox"

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

@@ -387,6 +387,8 @@
     <string name="bookmarks_empty">No bookmarks yet!</string>
     <string name="queue_insert_related_videos">Insert related videos</string>
     <string name="local_playlists">Local playlists</string>
+    <string name="not_enabled">Menu item not enabled!</string>
+    <string name="select_other_start_tab">Please select an other start tab first!</string>
 
     <!-- Notification channel strings -->
     <string name="download_channel_name">Download Service</string>