diff --git a/BaseLibrary/src/main/java/com/tfq/library/utils/AppUtil.java b/BaseLibrary/src/main/java/com/tfq/library/utils/AppUtil.java
index 91d1220..0916aa9 100644
--- a/BaseLibrary/src/main/java/com/tfq/library/utils/AppUtil.java
+++ b/BaseLibrary/src/main/java/com/tfq/library/utils/AppUtil.java
@@ -712,5 +712,24 @@ public class AppUtil {
         }
     }
 
+    /**
+     * 判断指定Activity是否正在运行
+     *
+     * @param context           上下文
+     * @param activityClassName 要检查的Activity的完整类名
+     * @return 如果Activity正在运行返回true，否则返回false
+    boolean isShowingAdSplash = AppUtil.isActivityRunning(Activity_Splash.this, AdSplashActivity.class.getName());
+     */
+    public static boolean isActivityRunning(Context context, String activityClassName) {
+        ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
+        List<ActivityManager.RunningTaskInfo> tasks = activityManager.getRunningTasks(Integer.MAX_VALUE);
+        for (ActivityManager.RunningTaskInfo task : tasks) {
+            if (task.topActivity != null && task.topActivity.getClassName().equals(activityClassName)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
 
 }