diff --git a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/CollectActivity.java b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/CollectActivity.java
index daf35a8c7..18c6bfdf2 100644
--- a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/CollectActivity.java
+++ b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/CollectActivity.java
@@ -3,7 +3,6 @@ package com.fongmi.android.tv.ui.activity;
 import android.app.Activity;
 import android.content.Intent;
 import android.os.Parcelable;
-import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 
@@ -156,9 +155,9 @@ public class CollectActivity extends BaseActivity {
     };
 
     @Override
-    protected void onDestroy() {
-        super.onDestroy();
-        Log.e("DDD", "onDestroy");
+    protected void onBackInvoked() {
+        mViewModel.cancelAll();
+        super.onBackInvoked();
     }
 
     class PageAdapter extends FragmentStatePagerAdapter {
diff --git a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/VideoActivity.java b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
index adbabf659..00dab6edc 100644
--- a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
+++ b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
@@ -1408,6 +1408,7 @@ public class VideoActivity extends BaseActivity implements CustomKeyDownVod.List
         } else if (isFullscreen()) {
             exitFullscreen();
         } else {
+            mViewModel.cancelAll();
             super.onBackInvoked();
         }
     }
diff --git a/app/src/main/java/com/fongmi/android/tv/model/SiteViewModel.java b/app/src/main/java/com/fongmi/android/tv/model/SiteViewModel.java
index df75ae9db..6720971e1 100644
--- a/app/src/main/java/com/fongmi/android/tv/model/SiteViewModel.java
+++ b/app/src/main/java/com/fongmi/android/tv/model/SiteViewModel.java
@@ -1,7 +1,6 @@
 package com.fongmi.android.tv.model;
 
 import android.text.TextUtils;
-import android.util.Log;
 
 import androidx.collection.ArrayMap;
 import androidx.lifecycle.MutableLiveData;
@@ -278,12 +277,16 @@ public class SiteViewModel extends ViewModel {
         });
     }
 
-    @Override
-    protected void onCleared() {
-        super.onCleared();
-        Log.e("DDD", "onCleared");
+    public void cancelAll() {
         if (future != null) future.cancel(true);
         if (executor != null) executor.shutdownNow();
         for (Future<?> f : searchFutures) f.cancel(true);
+        searchFutures.clear();
+    }
+
+    @Override
+    protected void onCleared() {
+        super.onCleared();
+        cancelAll();
     }
 }
diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/activity/VideoActivity.java b/app/src/mobile/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
index 85b3809b4..a6d5197d9 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
@@ -1653,6 +1653,7 @@ public class VideoActivity extends BaseActivity implements Clock.Callback, Custo
         } else if (isFullscreen() && !isLock()) {
             exitFullscreen();
         } else if (!isLock()) {
+            mViewModel.cancelAll();
             super.onBackInvoked();
         }
     }
diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/fragment/CollectFragment.java b/app/src/mobile/java/com/fongmi/android/tv/ui/fragment/CollectFragment.java
index e7d998b17..da4d46b31 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/ui/fragment/CollectFragment.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/fragment/CollectFragment.java
@@ -180,6 +180,7 @@ public class CollectFragment extends BaseFragment implements MenuProvider, Colle
     @Override
     public void onDestroyView() {
         super.onDestroyView();
+        mViewModel.cancelAll();
         requireActivity().removeMenuProvider(this);
     }
 }