重新启动android后广播接收器不起作用

Question

I am using brad cast reciver for detect headset is conncet or not.this my BroadcastReceiver class.

class HeadsetIntentReceiver: BroadcastReceiver() {
        override fun onReceive(context: Context?, intent: Intent) {
            if (intent.action == Intent.ACTION_HEADSET_PLUG) {
                val state = intent.getIntExtra(STATE, NEGATIVE_ONE)
                    when (state) {
                        ZERO-> {//Headset  not is plugged
                          
                        }
                         ONE -> {//Headset is plugged
                           
                         }
                     }
            }
        }
    }

I register it with this code.

registerReceiver(myReceiver, IntentFilter(Intent.ACTION_HEADSET_PLUG))

that's ok but when device is reboot don't work.I have already checked some the related questions and have not found any solution for this problem. So this is an absolutely new problem for me.

Answer 1

You need to register the broadcast receiver in the manifest:

 <receiver android:name="yourPath.HeadsetIntentReceiver">
            <intent-filter>
                <action android:name="android.intent.action.ACTION_HEADSET_PLUG" />
            </intent-filter>
 </receiver>

Answer 2

像这样注册您的广播接收器

registerReceiver(HeadsetIntentReceiver, IntentFilter(Intent.ACTION_HEADSET_PLUG))