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How to Detect Tablet or Phone in Android Programmatically?

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A Mobile is a portable electronic device that allows you to make calls, send messages, and access the internet, among other functions. A tablet is a mobile computing device with a touchscreen display and typically a larger screen size than a smartphone. Both devices are designed to be portable and allow you to stay connected while on the go. Here, we will discuss how to detect the user using a mobile or tablet device for the purpose. This is possible using programmatically in android studio.

Step by Step Implementation

Step 1: Create a New Project

To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. Note that select Java as the programming language.

Step 2: 

Here is the AndroidManifest.xml file

XML




<?xml version="1.0" encoding="utf-8"?>
    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.PhoneOrTabletGFG"
        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>
  
            <meta-data
                android:name="android.app.lib_name"
                android:value="" />
        </activity>
    </application>
  
</manifest>


Step 3: Make a design to show the device type in the resource layout file

Navigate to the app > res > layout > activity_main.xml and add the below code to that file. Below is the code for the activity_main.xml file.

XML




<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
  
    <androidx.appcompat.widget.AppCompatButton
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Check Device Type"
        android:backgroundTint="#43DC07"
        android:textSize="25dp"
        android:textColor="@color/black"
        android:layout_centerInParent="true"/>
  
    <TextView
        android:id="@+id/checkphonetablet"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Device Type"
        android:textSize="25sp"
        android:textColor="@color/black"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_below="@+id/button"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="20dp"/>
  
</RelativeLayout>


UI:

Mobile UI

Tablet UI

Step 4: Working with the MainActivity.java file

Go to the MainActivity.java file and refer to the following code. Below is the code for the MainActivity.java file. Comments are added inside the code to understand the code in more detail.

Java




package com.example.phoneortabletgfg;
  
import androidx.appcompat.app.AppCompatActivity;
  
import android.content.Context;
import android.content.res.Configuration;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
  
public class MainActivity extends AppCompatActivity {
  
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
  
        TextView textView = findViewById(R.id.checkphonetablet);
        Button buttonX = (Button)findViewById(R.id.button);
        buttonX.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v)
            {
                textView.setText(getDeviceInfo(getApplicationContext(), Device.DEVICE_TYPE));
                textView.setVisibility(View.VISIBLE);
            }
        });
    }
  
    public enum Device {
        DEVICE_TYPE,
    }
  
    public static String getDeviceInfo (Context context, Device device) {
        try {
            if (device == Device.DEVICE_TYPE) {
                if (isTablet(context)) {
                    if (getDevice5Inch(context)) {
                        return "This is Tablet";
                    } else {
                        return "This is Mobile";
                    }
                } else {
                    return "This is Mobile";
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
  
        return "";
    }
  
    private static boolean getDevice5Inch(Context context) {
        try {
            DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
            float yinch = displayMetrics.heightPixels / displayMetrics.ydpi;
            float xinch = displayMetrics.widthPixels / displayMetrics.xdpi;
  
            double diagonalinch = Math.sqrt(xinch * xinch + yinch * yinch);
            if (diagonalinch >= 7) {
                return true;
            } else {
                return false;
            }
        } catch (Exception e) {
            return false;
        }
    }
  
    private static boolean isTablet(Context context) {
        return (context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_LARGE;
    }
}


Now all are set, just run your app and you will be able to see the device type of your device.

Output:

Mobile Output

Tablet Output



Last Updated : 23 Feb, 2023
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