diff --git a/app/src/main/java/com/shxyke/MaaTouch/wrappers/InputManager.java b/app/src/main/java/com/shxyke/MaaTouch/wrappers/InputManager.java
index dd6df5f..d184d22 100644
--- a/app/src/main/java/com/shxyke/MaaTouch/wrappers/InputManager.java
+++ b/app/src/main/java/com/shxyke/MaaTouch/wrappers/InputManager.java
@@ -13,10 +13,10 @@ public final class InputManager {
     public static final int INJECT_MODE_WAIT_FOR_RESULT = 1;
     public static final int INJECT_MODE_WAIT_FOR_FINISH = 2;
 
-    private final android.hardware.input.InputManager manager;
+    private final Object manager;
     private Method injectInputEventMethod = null;
 
-    public InputManager(android.hardware.input.InputManager manager) {
+    public InputManager(Object manager) {
         this.manager = manager;
     }
 
diff --git a/app/src/main/java/com/shxyke/MaaTouch/wrappers/ServiceManager.java b/app/src/main/java/com/shxyke/MaaTouch/wrappers/ServiceManager.java
index 18d4a2b..2281542 100644
--- a/app/src/main/java/com/shxyke/MaaTouch/wrappers/ServiceManager.java
+++ b/app/src/main/java/com/shxyke/MaaTouch/wrappers/ServiceManager.java
@@ -1,6 +1,7 @@
 package com.shxyke.MaaTouch.wrappers;
 
 import android.annotation.SuppressLint;
+import android.os.Build;
 import android.os.IBinder;
 import android.os.IInterface;
 
@@ -46,10 +47,15 @@ public DisplayManager getDisplayManager() {
     public InputManager getInputManager() {
         if (inputManager == null) {
             try {
-                Method getInstanceMethod = android.hardware.input.InputManager.class.getDeclaredMethod("getInstance");
-                android.hardware.input.InputManager im = (android.hardware.input.InputManager) getInstanceMethod.invoke(null);
+                Method getInstanceMethod;
+                if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+                    getInstanceMethod = Class.forName("android.hardware.input.InputManagerGlobal").getMethod("getInstance");
+                } else {
+                    getInstanceMethod = android.hardware.input.InputManager.class.getDeclaredMethod("getInstance");
+                }
+                Object im = getInstanceMethod.invoke(null);
                 inputManager = new InputManager(im);
-            } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
+            } catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
                 e.printStackTrace();
                 throw new AssertionError(e);
             }