Android Broadcast example

Simple Android broadcast example 



Activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    tools:context="com.example.anshu.broadcast.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Example of Broadcast"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:textSize="30dp" />


    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/button2"
        android:text="Broadcast Intent"
        android:onClick="broadcastIntent"
        android:layout_below="@+id/textView1"
        android:layout_centerHorizontal="true" />

</RelativeLayout>

MainActivity.java

package com.example.anshu.broadcast;

import android.app.Activity;

import android.content.Intent;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

public class MainActivity extends Activity {

    Button b1;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    b1 = (Button) findViewById(R.id.button2);

    b1.setOnClickListener(new View.OnClickListener() {

        @Override

        public void onClick(View view) {

                Intent intent = new Intent();

                intent.setAction("com.tutorialspoint.CUSTOM_INTENT");

                sendBroadcast(intent);

           

        }

    });

    }

}

MyReceiver.java

package com.example.anshu.broadcast;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.widget.Toast;

/**

 * Created by Anshu on 12/8/2017.

 */

public class MyReceiver extends BroadcastReceiver{

    @Override

    public void onReceive(Context context, Intent intent) {

        Toast.makeText(context,"Intent Detected.",Toast.LENGTH_LONG).show();

    }

}

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