diff --git a/updatepluginlib/src/main/java/org/lzh/framework/updatepluginlib/impl/DefaultDownloadNotifier.java b/updatepluginlib/src/main/java/org/lzh/framework/updatepluginlib/impl/DefaultDownloadNotifier.java
index d83f0e4..5ae4901 100644
--- a/updatepluginlib/src/main/java/org/lzh/framework/updatepluginlib/impl/DefaultDownloadNotifier.java
+++ b/updatepluginlib/src/main/java/org/lzh/framework/updatepluginlib/impl/DefaultDownloadNotifier.java
@@ -18,9 +18,7 @@
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.ProgressDialog;
-import android.content.Context;
 import android.content.DialogInterface;
-import android.os.Process;
 
 import org.lzh.framework.updatepluginlib.base.DownloadCallback;
 import org.lzh.framework.updatepluginlib.base.DownloadNotifier;
@@ -77,8 +75,7 @@ private void createRestartDialog() {
                     @Override
                     public void onClick(DialogInterface dialog, int which) {
                         if (update.isForced()) {
-                            System.exit(0);
-                            Process.killProcess(Process.myPid());
+                            ActivityManager.get().exit();
                         } else {
                             dialog.dismiss();
                         }
diff --git a/updatepluginlib/src/main/java/org/lzh/framework/updatepluginlib/util/ActivityManager.java b/updatepluginlib/src/main/java/org/lzh/framework/updatepluginlib/util/ActivityManager.java
index f167227..c54257a 100644
--- a/updatepluginlib/src/main/java/org/lzh/framework/updatepluginlib/util/ActivityManager.java
+++ b/updatepluginlib/src/main/java/org/lzh/framework/updatepluginlib/util/ActivityManager.java
@@ -19,6 +19,7 @@
 import android.app.Application;
 import android.content.Context;
 import android.os.Bundle;
+import android.os.Process;
 
 import java.util.LinkedList;
 
@@ -92,4 +93,14 @@ void registerSelf(Context context) {
         this.applicationContext = context.getApplicationContext();
     }
 
+    public void exit() {
+        Activity activity;
+        while ((activity = stack.pop()) != null) {
+            if (!activity.isFinishing()) {
+                activity.finish();
+            }
+        }
+        System.exit(0);
+        Process.killProcess(Process.myPid());
+    }
 }