Android Airplane Mode, Bluetooth BroadcastReceiver example

 Android Airplane Mode,  Dark Mode, Hotspot on off BroadcastReceiver example

 1/ Android Airplane Mode BroadcastReceiver

   1.1 /  Create A Class AirplaneModeReceiver class and extends BroadcastReceiver

package com.example.airplanemodebroadcastreceiver;

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

public class AirplaneModeReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        boolean isAirplaneModeOn = intent.getBooleanExtra("state", false);
                  if (isAirplaneModeOn) {
            Toast.makeText(context, "Airplane Mode Enabled", Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(context, "Airplane Mode Disabled", Toast.LENGTH_SHORT).show();
        }
   }
}

 

 1.2 / Active registerReceiver In MainActivity

package com.example.airplanemodebroadcastreceiver;

import androidx.appcompat.app.AppCompatActivity;

import android.content.BroadcastReceiver;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {
    BroadcastReceiver airplaneModeReceiver = new AirplaneModeReceiver();
    IntentFilter intentFilter;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         intentFilter = new IntentFilter(Intent.ACTION_AIRPLANE_MODE_CHANGED);
         registerReceiver(airplaneModeReceiver, intentFilter);
    }

  @Override
    protected void onDestroy() {
    super.onDestroy();
         unregisterReceiver(airplaneModeReceiver);
    }
}

 

 1.3 / Then Change AndroidManifest.xml (Add receiver in the application )

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

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.AirplaneModeBroadcastReceiver"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".AirplaneModeReceiver"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.AIRPLANE_MODE" />
            </intent-filter>
        </receiver>
    </application>

</manifest>

 

Now run the application and turn airplane mode on or off. Toast will show whether airplane mode is on or off.

2 / Bluetooth BroadcastReceiver

   2.1 / Create A Class BluetoothReceiver class and extends BroadcastReceiver

package com.example.bluetoothonoffbroadcastreceiver;

import android.bluetooth.BluetoothAdapter;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;

public class BluetoothReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
            int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR);

            if(state == BluetoothAdapter.STATE_OFF){
                Log.d("BluetoothReceiver", "Bluetooth is OFF");
                Toast.makeText(context, "Bluetooth is OFF", Toast.LENGTH_SHORT).show();
            }
            else if (state == BluetoothAdapter.STATE_ON){
                Log.d("BluetoothReceiver", "Bluetooth is ON");
                Toast.makeText(context, "Bluetooth is ON", Toast.LENGTH_SHORT).show();
            }
            else if (state == BluetoothAdapter.STATE_TURNING_OFF){
                Log.d("BluetoothReceiver", "Bluetooth is TURNING OFF");
                Toast.makeText(context, "Bluetooth is TURNING OFF", Toast.LENGTH_SHORT).show();
            }
            else if (state == BluetoothAdapter.STATE_TURNING_ON){
                Log.d("BluetoothReceiver", "Bluetooth is TURNING ON");
                Toast.makeText(context, "Bluetooth is TURNING ON", Toast.LENGTH_SHORT).show();
            }
            else if (state == BluetoothAdapter.STATE_CONNECTED){
                Log.d("BluetoothReceiver", "Bluetooth is CONNECTED");
                Toast.makeText(context, "Bluetooth is CONNECTED", Toast.LENGTH_SHORT).show();
            }
            else if (state == BluetoothAdapter.STATE_CONNECTING){
                Log.d("BluetoothReceiver", "Bluetooth is CONNECTING");
                Toast.makeText(context, "Bluetooth is CONNECTING", Toast.LENGTH_SHORT).show();
            }
            else if (state == BluetoothAdapter.STATE_DISCONNECTED){
                Log.d("BluetoothReceiver", "Bluetooth is DISCONNECTED");
                Toast.makeText(context, "Bluetooth is DISCONNECTED", Toast.LENGTH_SHORT).show();
            }
            else if (state == BluetoothAdapter.STATE_DISCONNECTING){
                Log.d("BluetoothReceiver", "Bluetooth is DISCONNECTING");
                Toast.makeText(context, "Bluetooth is DISCONNECTING", Toast.LENGTH_SHORT).show();
            }
        }
    }
}

 2.2 /  Active registerReceiver In MainActivity

package com.example.bluetoothonoffbroadcastreceiver;

import androidx.appcompat.app.AppCompatActivity;

import android.bluetooth.BluetoothAdapter;
import android.content.IntentFilter;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {
    BluetoothReceiver bluetoothReceiver = new BluetoothReceiver();
    IntentFilter intentFilter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        intentFilter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);
        registerReceiver(bluetoothReceiver, intentFilter);

    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(bluetoothReceiver);
    }
}
 

2.3  /  Then Change AndroidManifest.xml (Give Permissions and Add receiver in the application )

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

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


    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.BluetoothOnOffBroadcastReceiver"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".BluetoothReceiver"
            android:exported="true">
            <intent-filter>
                <action android:name="android.bluetooth.adapter.action.STATE_CHANGED" />
            </intent-filter>
        </receiver>
    </application>

</manifest>


 

 Now run the application and turn Bluetooth on or off. Toast will show whether Bluetooth is on, off, or in another state.