Local Broadcast Example in android Studio

•  1st of all we have to take BroadcastReceiver type variable which will usable later in 1st Activity.

private lateinit var receiver: BroadcastReceiver

• Either we'll take object on 1st activity or could be create new broadcast class and thereafter take object it on same activity.
  
  

  receiver= object :BroadcastReceiver(){
      override fun onReceive(context: Context?, intent: Intent?) {
          val message=intent?.getStringExtra("message")
          Log.e("roshan",message.toString())
      }
  
  }

  //or you can use this
  
  receiver=MessageReceiver()
  
  //but in this case you have to create separate broadcasterreceiver class
  
  

  
  

  class MessageReceiver : BroadcastReceiver() {
      override fun onReceive(context: Context?, intent: Intent?) {
          var message = intent?.getStringExtra("message")
          Log.e("roshan", message.toString())
          Toast.makeText(context, message, Toast.LENGTH_SHORT).show()
          val activityIntent = Intent(context, MainActivity::class.java)
          activityIntent.putExtra("broadcast_message", message)
          activityIntent.flags=Intent.FLAG_ACTIVITY_NEW_TASK
          context?.startActivity(activityIntent)
      }
  
  }

  
  
• after that , we have to register broadcast on 1st activity
  

  LocalBroadcastManager.getInstance(this).registerReceiver(receiver, IntentFilter("custom-event")) // Change action to "custom-event"
  

  
  
  

  override fun onDestroy() {
      super.onDestroy()
      // Unregister the BroadcastReceiver
      LocalBroadcastManager.getInstance(this).unregisterReceiver(receiver)
  }

  
  
• After that we have to take source where we'll send broadcast. In my case I'm taking SecondActivity.
  
  

  val intent = Intent("custom-event") // Change action to "custom-event"
  intent.putExtra("message", "Hello from SecondActivity!")
  LocalBroadcastManager.getInstance(this).sendBroadcast(intent)

  
  
  
  
  
• Now, You'll get successfully data