使用Kotlin发送广播开始新活动

// 发送广播
val intent = Intent("com.example.MY_CUSTOM_ACTION")
intent.putExtra("key", "value") // 可以传递额外数据
sendBroadcast(intent)

// 接收广播并启动新活动
class MyBroadcastReceiver : BroadcastReceiver() {
    override fun onReceive(context: Context?, intent: Intent?) {
        if (intent?.action == "com.example.MY_CUSTOM_ACTION") {
            val newIntent = Intent(context, NewActivity::class.java)
            newIntent.putExtras(intent) // 获取传递的数据
            context?.startActivity(newIntent)
        }
    }
}

// 在AndroidManifest.xml中注册广播接收器
<receiver android:name=".MyBroadcastReceiver">
    <intent-filter>
        <action android:name="com.example.MY_CUSTOM_ACTION" />
    </intent-filter>
</receiver>