registerReceiver() https://developer.android.com/about/versions/14/behavior-changes-14?hl=zh-cn#runtime-receivers-exported

Recently, our application on Google Play has been rejected because of an improper registration of the broadcast receiver. Applications targeting Android 13 or later are required to explicitly specify the export behavior when invoking the registerReceiver() method. The current official version of your application encountered a crash due to the use of a broadcast receiver without defining its export behavior. We kindly request that you update your application to ensure that all registered broadcast receivers clearly specify their export behavior.
https://developer.android.com/about/versions/14/behavior-changes-14?hl=zh-cn#runtime-receivers-exported