android studio battery percentage example

 android studio battery percentage example

In this Article Today learn how to check battery level in android programmatically. follow this full tutorial 

1.Open Android Studio create a New Project:

2.Click Empty Activity and click next:

3.Renam a file Name and Package Name Click Finish:

4.MainActivity.java:

package com.akash.myapplication;

import android.app.Activity;

import android.os.BatteryManager;

import android.os.Build;

import android.os.Bundle;

import android.widget.TextView;

import androidx.annotation.RequiresApi;

public class MainActivity extends Activity {

    int view = R.layout.activity_main;

    TextView text;

    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(view);

        text = findViewById(R.id.text);

        BatteryManager bm = (BatteryManager)getSystemService(BATTERY_SERVICE);

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {

            int percentage = bm.getIntProperty(BatteryManager.BATTERY_PROPERTY_CAPACITY);

            text.setText("Battery Percentage is "+percentage+" %");

        }

    }

}

5.activity_main.xml:

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

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

    android:id = "@+id/parent"

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

    android:layout_width = "match_parent"

    android:layout_height = "match_parent"

    tools:context = ".MainActivity"

    android:gravity = "center"

    android:orientation = "vertical">

    <TextView

        android:id = "@+id/text"

        android:textSize = "18sp"

        android:textAlignment = "center"

        android:text = "batter percentage"

        android:layout_width = "match_parent"

        android:layout_height = "wrap_content" />

</LinearLayout>

6.AndroidManifest.xml:

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

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

    package="com.akash.myapplication">

    <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>

    </application>

</manifest>

7.colors.xml:

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

<resources>

    <color name="colorPrimary">#6200EE</color>

    <color name="colorPrimaryDark">#3700B3</color>

    <color name="colorAccent">#03DAC5</color>

</resources>

8.strings.xml:

<resources>

    <string name="app_name">My Application</string>

</resources>

9.Output: