Android Battery Level.

The simple application helps to find the followings of the battery from your Android phone.

• Battery Level

• Technology

• plugin 

• Health

• Status

img.i

Design The .xml page like the following 

main.xml

<?xml version="1.0" encoding="utf-8"?>

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

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent">

<TextView 

    android:layout_width="fill_parent" 

    android:layout_height="fill_parent"

    android:layout_margin="10dip"

    android:id="@+id/batterylevel_text"

    android:textStyle="bold"

    android:text="batterylevel_info"/>

</LinearLayout>

The source -> MainActivity.java

package com.samples.batteryinfo;

import android.app.Activity;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.BatteryManager;

import android.os.Bundle;

import android.util.Log;

import android.widget.TextView;

public class MainActivity extends Activity {

TextView textBatteryLevel = null;

String batteryLevelInfo = "Battery Level";

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        

        textBatteryLevel = (TextView)findViewById(R.id.batterylevel_text);

        

        registerBatteryLevelReceiver();

    }

@Override

protected void onDestroy()

{

unregisterReceiver(battery_receiver);

super.onDestroy();

}

private BroadcastReceiver battery_receiver = new BroadcastReceiver()

{

@Override

public void onReceive(Context context, Intent intent)

{

boolean isPresent = intent.getBooleanExtra("present", false);

String technology = intent.getStringExtra("technology");

int plugged = intent.getIntExtra("plugged", -1);

int scale = intent.getIntExtra("scale", -1);

int health = intent.getIntExtra("health", 0);

int status = intent.getIntExtra("status", 0);

int rawlevel = intent.getIntExtra("level", -1);

            int level = 0;

            

            Bundle bundle = intent.getExtras();

            

            Log.i("BatteryLevel", bundle.toString());

            

            if(isPresent)

            {

           if (rawlevel >= 0 && scale > 0) {

               level = (rawlevel * 100) / scale;

           }

           

           String info = "Battery Level: " + level + "%\n";

           

           info += ("Technology: " + technology + "\n");

           info += ("Plugged: " + getPlugTypeString(plugged) + "\n");

           info += ("Health: " + getHealthString(health) + "\n");

           info += ("Status: " + getStatusString(status) + "\n");

           

           //setBatteryLevelText(info + "\n\n" + bundle.toString());

           setBatteryLevelText(info + "\n\n");

            }

            else

            {

            setBatteryLevelText("Battery not present!!!");

            }

}

};

private String getPlugTypeString(int plugged){

String plugType = "Unknown";

switch(plugged)

{

case BatteryManager.BATTERY_PLUGGED_AC: plugType = "AC"; break;

case BatteryManager.BATTERY_PLUGGED_USB: plugType = "USB"; break;

}

return plugType;

}

private String getHealthString(int health)

{

String healthString = "Unknown";

switch(health)

{

case BatteryManager.BATTERY_HEALTH_DEAD: healthString = "Dead"; break;

case BatteryManager.BATTERY_HEALTH_GOOD: healthString = "Good"; break;

case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE: healthString = "Over Voltage"; break;

case BatteryManager.BATTERY_HEALTH_OVERHEAT: healthString = "Over Heat"; break;

case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE: healthString = "Failure"; break;

}

return healthString;

}

private String getStatusString(int status)

{

String statusString = "Unknown";

switch(status)

{

case BatteryManager.BATTERY_STATUS_CHARGING: statusString = "Charging"; break;

case BatteryManager.BATTERY_STATUS_DISCHARGING: statusString = "Discharging"; break;

case BatteryManager.BATTERY_STATUS_FULL: statusString = "Full"; break;

case BatteryManager.BATTERY_STATUS_NOT_CHARGING: statusString = "Not Charging"; break;

}

return statusString;

}

private void setBatteryLevelText(String text){

textBatteryLevel.setText(text);

}

private void registerBatteryLevelReceiver(){

IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);

        registerReceiver(battery_receiver, filter);

}

}

The AndroidManifest.xml look like :

<?xml version="1.0" encoding="utf-8"?>

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

      package="com.samples.batteryinfo"

      android:versionCode="1"

      android:versionName="1.0">

    <application android:icon="@drawable/icon" android:label="@string/app_name">

        <activity android:name=".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>

    </application>

    <uses-sdk android:minSdkVersion="3" />

</manifest> 

Note: Modify the above code as you requirements.