How to android device is having low ram or high ram?

This example demonstrate about How to android device is having low ram or high ram.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/activity_main.xml.

<?xml version = "1.0" encoding = "utf-8"?>
<LinearLayout xmlns:android = "https://schemas.android.com/apk/res/android"
   xmlns:app = "https://schemas.android.com/apk/res-auto"
   xmlns:tools = "https://schemas.android.com/tools"
   android:layout_width = "match_parent"
   android:gravity = "center"
   android:layout_height = "match_parent"
   tools:context = ".MainActivity"
   android:orientation = "vertical">
   <TextView
      android:id = "@+id/text"
      android:textSize = "30sp"
      android:layout_width = "wrap_content"
      android:layout_height = "wrap_content" />
</LinearLayout>

In the above code, we have taken text view to show device is low ram device or high ram.

Step 3 − Add the following code to src/MainActivity.java

package com.example.myapplication;
import android.app.ActivityManager;
import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.telephony.TelephonyManager;
import android.view.WindowManager;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
   TextView textView;
   @RequiresApi(api = Build.VERSION_CODES.P)
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND,
      WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
      setContentView(R.layout.activity_main);
      textView = findViewById(R.id.text);
      ActivityManager result = (ActivityManager)this.getSystemService(Context.ACTIVITY_SERVICE);
      boolean device = result.isLowRamDevice();
      textView.setText("" +device);
   }
}

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen –