diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 9c0e08e..b9bec44 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -298,6 +298,12 @@
         if (runCommandsLockedInterruptible()) {
             nextWakeupTime = LONG_LONG_MIN;
         }
+
+        // We are about to enter an infinitely long sleep, because we have no commands or
+        // pending or queued events
+        if (nextWakeupTime == LONG_LONG_MAX) {
+            mDispatcherEnteredIdle.notify_all();
+        }
     } // release lock
 
     // Wait for callback or timeout or wake.  (make sure we round up, not down)
@@ -4582,4 +4588,22 @@
     mDispatcherIsAlive.wait(_l);
 }
 
+/**
+ * Wake up the dispatcher and wait until it processes all events and commands.
+ * The notification of mDispatcherEnteredIdle is guaranteed to happen after wake(), so
+ * this method can be safely called from any thread, as long as you've ensured that
+ * the work you are interested in completing has already been queued.
+ */
+bool InputDispatcher::waitForIdle() {
+    /**
+     * Timeout should represent the longest possible time that a device might spend processing
+     * events and commands.
+     */
+    constexpr std::chrono::duration TIMEOUT = 100ms;
+    std::unique_lock lock(mLock);
+    mLooper->wake();
+    std::cv_status result = mDispatcherEnteredIdle.wait_for(lock, TIMEOUT);
+    return result == std::cv_status::no_timeout;
+}
+
 } // namespace android::inputdispatcher