diff --git a/app/src/main/java/com/gh/download/DownloadManager.java b/app/src/main/java/com/gh/download/DownloadManager.java
index 1c87467aa3..022488362c 100644
--- a/app/src/main/java/com/gh/download/DownloadManager.java
+++ b/app/src/main/java/com/gh/download/DownloadManager.java
@@ -689,11 +689,13 @@ public class DownloadManager implements DownloadStatusListener {
     public void cancel(String url, boolean isDeleteFile, boolean automatic) {
         DownloadEntity entry = mDownloadDao.get(url);
         if (entry != null) {
-            if (isDeleteFile) {
-                FileUtils.deleteFile(entry.getPath());
-            }
-            mDownloadDao.delete(url);
-            Utils.log(DownloadManager.class.getSimpleName(), "cancel==>record were deleted!");
+            AppExecutor.getIoExecutor().execute(() -> {
+                if (isDeleteFile) {
+                    FileUtils.deleteFile(entry.getPath());
+                }
+                mDownloadDao.delete(url);
+                Utils.log(DownloadManager.class.getSimpleName(), "cancel==>record were deleted!");
+            });
         }
         if (entry != null) {
             if (automatic) {
diff --git a/app/src/main/java/com/gh/gamecenter/db/SearchHistoryDao.java b/app/src/main/java/com/gh/gamecenter/db/SearchHistoryDao.java
index 7625a2ce28..b7f86c021b 100644
--- a/app/src/main/java/com/gh/gamecenter/db/SearchHistoryDao.java
+++ b/app/src/main/java/com/gh/gamecenter/db/SearchHistoryDao.java
@@ -2,6 +2,7 @@ package com.gh.gamecenter.db;
 
 import android.content.Context;
 
+import com.gh.common.AppExecutor;
 import com.gh.gamecenter.db.info.SearchHistoryInfo;
 import com.j256.ormlite.dao.CloseableIterator;
 import com.j256.ormlite.dao.Dao;
@@ -25,34 +26,36 @@ public class SearchHistoryDao {
     }
 
     public void add(String item) {
-        try {
-            dao.createOrUpdate(new SearchHistoryInfo(item));
-        } catch (Exception e) {
-
-            e.printStackTrace();
-        }
+        AppExecutor.getIoExecutor().execute(() -> {
+            try {
+                dao.createOrUpdate(new SearchHistoryInfo(item));
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
     }
 
     public void delete(String item) {
-        try {
-            dao.deleteById(item);
-        } catch (Exception e) {
-
-            e.printStackTrace();
-        }
-    }
-
-    public void deleteAll() {
-
-        CloseableIterator<SearchHistoryInfo> iterator = dao.iterator();
-        while (iterator.hasNext()) {
+        AppExecutor.getIoExecutor().execute(() -> {
             try {
-                dao.delete(iterator.next());
+                dao.deleteById(item);
             } catch (Exception e) {
-
                 e.printStackTrace();
             }
-        }
+        });
+    }
+    
+    public void deleteAll() {
+        AppExecutor.getIoExecutor().execute(() -> {
+            CloseableIterator<SearchHistoryInfo> iterator = dao.iterator();
+            while (iterator.hasNext()) {
+                try {
+                    dao.delete(iterator.next());
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }
+        });
         return;
     }
 
diff --git a/app/src/main/java/com/gh/gamecenter/search/SearchDefaultViewModel.kt b/app/src/main/java/com/gh/gamecenter/search/SearchDefaultViewModel.kt
index 8e1e2c3b91..a1d838e98b 100644
--- a/app/src/main/java/com/gh/gamecenter/search/SearchDefaultViewModel.kt
+++ b/app/src/main/java/com/gh/gamecenter/search/SearchDefaultViewModel.kt
@@ -14,7 +14,7 @@ class SearchDefaultViewModel(application: Application) : AndroidViewModel(applic
     var isExistHistory: Boolean = false
 
     init {
-        runOnIoThread(true) {
+        runOnIoThread {
             historySearchLiveData.postValue(SearchHistoryDao(application).all)
         }
     }