优化

app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt

@@ -306,7 +306,6 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
         }
         if (viewModel.isSearchLiveData.value == false
             && viewModel.searchKey.isNotEmpty()
-            && viewModel.searchBookLiveData.value?.isNotEmpty() == true
         ) {
             viewModel.search("")
         }
@@ -368,7 +367,6 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
      * 开始搜索
      */
     private fun startSearch() {
-        binding.refreshProgressBar.visible()
         binding.refreshProgressBar.isAutoLoading = true
         binding.fbStop.visible()
     }
@@ -378,7 +376,6 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
      */
     private fun searchFinally() {
         binding.refreshProgressBar.isAutoLoading = false
-        binding.refreshProgressBar.gone()
         binding.fbStop.invisible()
     }