优化搜索

app/src/main/java/io/legado/app/model/webBook/SearchBookModel.kt

@@ -54,6 +54,7 @@ class SearchBookModel(private val scope: CoroutineScope, private val callBack: C
         } else {
             searchPage++
         }
+        searchIndex = -1
         for (i in 0 until threadCount) {
             search(searchId)
         }

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

@@ -30,13 +30,16 @@ class SearchViewModel(application: Application) : BaseViewModel(application),
      * 开始搜索
      */
     fun search(key: String) {
-        if ((searchKey != key && key.isEmpty()) || key.isNotEmpty()) {
+        if ((searchKey == key) || key.isNotEmpty()) {
             searchBookModel.cancelSearch()
             searchBooks.clear()
             searchBookLiveData.postValue(searchBooks)
             searchID = System.currentTimeMillis()
             searchKey = key
         }
+        if (searchKey.isEmpty()) {
+            return
+        }
         searchBookModel.search(searchID, searchKey)
     }
 
@@ -111,7 +114,7 @@ class SearchViewModel(application: Application) : BaseViewModel(application),
                             && item.author == searchBook.author
                         ) {
                             hasSame = true
-                            searchBook.addOrigin(item.bookUrl)
+                            searchBook.addOrigin(item.origin)
                             break
                         }
                     }