BroadCastReceiver Demo 1

Demo:

1) MainActivity.java:

package com.venky.broadcastreceiverdemo;

import android.app.Activity;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.Bundle;

import android.widget.ProgressBar;

import android.widget.TextView;

public class MainActivity extends Activity {

      private BroadcastReceiver bc = new BroadcastReceiver() {

            @Override

            public void onReceive(Context context, Intent intent) {

                  // TODO Auto-generated method stub

                  int batteryStatus = intent.getIntExtra("level", 0);

                  TextView tv = (TextView) findViewById(R.id.textView1);

                  tv.setText("Battery Status => " + batteryStatus + " %");

                  ProgressBar pb = (ProgressBar) findViewById(R.id.progressBar1);

                  pb.setProgress(batteryStatus);

            }

      };

      @Override

      protected void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_main);

            registerReceiver(bc, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));

      }

}

2) main.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/LinearLayout1"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    android:background="#5F04B4"

    tools:context=".MainActivity" >

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:textColor="#ffffff"

        android:layout_gravity="center"

        android:layout_marginTop="70dp"

        android:textAppearance="?android:attr/textAppearanceLarge" />

    <ProgressBar

        android:id="@+id/progressBar1"

        style="?android:attr/progressBarStyleHorizontal"

        android:layout_width="250dp"

        android:layout_height="wrap_content"

        android:layout_gravity="center"

        android:layout_marginTop="10dp" />

</LinearLayout>

 3) Download this Project Click Here