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How to make BroadcastReceiver in Android using java

Posted on December 3, 2021December 3, 2021 By christo No Comments on How to make BroadcastReceiver in Android using java

Complete source code in java to make BroadcastReceiver in Android

Table of Contents

  • AndroidManifest.xml
  • ExampleBroadcastReceiver.java
  • MainActivity.java

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="tech.codingpoint.broadcastexample">

    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".ExampleBroadcastReceiver">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED" />
                <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
            </intent-filter>
        </receiver>
    </application>

</manifest>

ExampleBroadcastReceiver.java

package tech.codingpoint.broadcastexample;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.widget.Toast;

public class ExampleBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        if (ConnectivityManager.CONNECTIVITY_ACTION.equals(intent.getAction())) {
            boolean noConnectivity = intent.getBooleanExtra(
                    ConnectivityManager.EXTRA_NO_CONNECTIVITY, false
            );
            if (noConnectivity) {
                Toast.makeText(context, "Disconnected", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(context, "Connected", Toast.LENGTH_SHORT).show();
            }
        }
    }
}

MainActivity.java

package tech.codingpoint.broadcastexample;

import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {
    ExampleBroadcastReceiver exampleBroadcastReceiver = new ExampleBroadcastReceiver();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    protected void onStart() {
        super.onStart();
        IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
        registerReceiver(exampleBroadcastReceiver, filter);
    }

    @Override
    protected void onStop() {
        super.onStop();
        unregisterReceiver(exampleBroadcastReceiver);
    }
}
android Tags:Android, BroadcastReceiver

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