发现选择分组时只搜索分组

app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt

@@ -29,6 +29,9 @@ interface BookSourceDao {
     @Query("select * from book_sources where enabledExplore = 1 and trim(exploreUrl) <> '' and (bookSourceGroup like :key or bookSourceName like :key) order by customOrder asc")
     fun liveExplore(key: String): LiveData<List<BookSource>>
 
+    @Query("select * from book_sources where enabledExplore = 1 and trim(exploreUrl) <> '' and (bookSourceGroup like :key) order by customOrder asc")
+    fun liveGroupExplore(key: String): LiveData<List<BookSource>>
+
     @Query("select bookSourceGroup from book_sources where trim(bookSourceGroup) <> ''")
     fun liveGroup(): LiveData<List<String>>
 
@@ -36,7 +39,7 @@ interface BookSourceDao {
     fun liveGroupEnabled(): LiveData<List<String>>
 
     @Query("select bookSourceGroup from book_sources where enabledExplore = 1 and trim(exploreUrl) <> '' and trim(bookSourceGroup) <> ''")
-    fun liveGroupExplore(): LiveData<List<String>>
+    fun liveExploreGroup(): LiveData<List<String>>
 
     @Query("select distinct  enabled from book_sources where bookSourceName like :searchKey or bookSourceGroup like :searchKey or bookSourceUrl like :searchKey")
     fun searchIsEnable(searchKey: String = ""): List<Boolean>

app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt

@@ -97,7 +97,7 @@ class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_explo
 
     private fun initGroupData() {
         liveGroup?.removeObservers(viewLifecycleOwner)
-        liveGroup = App.db.bookSourceDao.liveGroupExplore()
+        liveGroup = App.db.bookSourceDao.liveExploreGroup()
         liveGroup?.observe(viewLifecycleOwner, {
             groups.clear()
             it.map { group ->
@@ -107,12 +107,19 @@ class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_explo
         })
     }
 
-    private fun initExploreData(key: String? = null) {
+    private fun initExploreData(searchKey: String? = null) {
         liveExplore?.removeObservers(viewLifecycleOwner)
-        liveExplore = if (key.isNullOrBlank()) {
-            App.db.bookSourceDao.liveExplore()
-        } else {
-            App.db.bookSourceDao.liveExplore("%$key%")
+        liveExplore = when {
+            searchKey.isNullOrBlank() -> {
+                App.db.bookSourceDao.liveExplore()
+            }
+            searchKey.startsWith("group:") -> {
+                val key = searchKey.substringAfter("group:")
+                App.db.bookSourceDao.liveGroupExplore("%$key%")
+            }
+            else -> {
+                App.db.bookSourceDao.liveExplore("%$searchKey%")
+            }
         }
         liveExplore?.observe(viewLifecycleOwner, {
             binding.tvEmptyMsg.isGone = it.isNotEmpty() || searchView.query.isNotEmpty()
@@ -135,7 +142,7 @@ class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_explo
     override fun onCompatOptionsItemSelected(item: MenuItem) {
         super.onCompatOptionsItemSelected(item)
         if (item.groupId == R.id.menu_group_text) {
-            searchView.setQuery(item.title, true)
+            searchView.setQuery("group:${item.title}", true)
         }
     }