添加源地址订阅功能

app/src/main/java/io/legado/app/ui/rss/subscription/SourceSubActivity.kt

@@ -41,7 +41,10 @@ class SourceSubActivity : BaseActivity<ActivitySourceSubBinding>(),
 
     override fun onCompatOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
-            R.id.menu_add -> editSubscription(SourceSub())
+            R.id.menu_add -> {
+                val order = App.db.sourceSubDao().maxOrder + 1
+                editSubscription(SourceSub(customOrder = order))
+            }
         }
         return super.onCompatOptionsItemSelected(item)
     }

app/src/main/java/io/legado/app/ui/rss/subscription/SourceSubAdapter.kt

@@ -44,7 +44,7 @@ class SourceSubAdapter(context: Context, val callBack: Callback) :
     private fun showMenu(view: View, position: Int) {
         val source = getItem(position) ?: return
         val popupMenu = PopupMenu(context, view)
-        popupMenu.inflate(R.menu.rss_source_item)
+        popupMenu.inflate(R.menu.source_sub_item)
         popupMenu.setOnMenuItemClickListener { menuItem ->
             when (menuItem.itemId) {
                 R.id.menu_del -> callBack.delSubscription(source)

app/src/main/res/menu/source_sub_item.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/menu_del"
+        android:title="@string/delete" />
+
+</menu>