How to detect when power connected and disconnected in android

 Hi,today we learn about power connection and disconnection in android.For this requirement we have to use  BroadcastReceiver and intent-filter.
BroadcastReceiver :This is one of android component. it handle communication between android os and applications.

First ,we have to register BroadcastReceiver in AndroidManifest.xml

<receiver android:name=".PlugInConnector">
        <intent-filter>
            <action android:name="android.intent.action.ACTION_POWER_CONNECTED" />
            <action android:name="android.intent.action.ACTION_POWER_DISCONNECTED" />
        </intent-filter>
    </receiver>
       
AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.ypp.battery"
    android:versionCode="4"
    android:versionName="1.3" >

    <uses-sdk
        android:minSdkVersion="10"
        android:targetSdkVersion="21" />
 
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
 
    <application
     
     
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
       >
        <activity
            android:name="com.ypp.battery.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
         <receiver android:name="com.dc.battery.PlugInConnector">
        <intent-filter>
       
       <action android:name="android.intent.action.ACTION_POWER_CONNECTED" />
      <action android:name="android.intent.action.ACTION_POWER_DISCONNECTED" />
        </intent-filter>
    </receiver>

    </application>

</manifest>

PlugInConnector.java
           
copy and paste the below code in your created java file

public class PlugInConnector extends BroadcastReceiver
{
 
@Override
public void onReceive(Context context, Intent intent) {

   String action = intent.getAction();

   if(action.equals(Intent.ACTION_POWER_CONNECTED))
 {
       // Do something when power connected
                Toast.makeText(context, "connected", 3000).show();
  }
else if(action.equals(Intent.ACTION_POWER_DISCONNECTED))
{
       // Do something when power disconnected
                Toast.makeText(context, "Disconnected", 3000).show();
}
}
}


Finally, Run your application

then connect your device to power
we will get result  like below

connected : this will be display when your device connected  to power 
Disconnected: this will be display  when your device disconnected  from power