How to use take() in android ArrayBlockingQueue?

AndroidMobile DevelopmentApps/Applications

Before getting into the example, we should know what arrayblockingqueue is, it travels FIFO manner and the first element going to live the longest period of time and last element of the queue going to live a short period of the time.

This example demonstrates about How to use take() in android ArrayBlockingQueue

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 = "http://schemas.android.com/apk/res/android"
   xmlns:app = "http://schemas.android.com/apk/res-auto"
   xmlns:tools = "http://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/actionEvent"
      android:textSize = "40sp"
      android:layout_marginTop = "30dp"
      android:layout_width = "wrap_content"
      android:layout_height = "match_parent" />
</LinearLayout>

In the above code, we have taken a text view to show ArrayBlockingQueue elements.

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

package com.example.myapplication;
import android.annotation.SuppressLint;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
import java.util.concurrent.ArrayBlockingQueue;
public class MainActivity extends AppCompatActivity {
   ArrayBlockingQueue arrayBlockingQueue;
   String head;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      arrayBlockingQueue = new ArrayBlockingQueue<>(50);
      final TextView actionEvent = findViewById(R.id.actionEvent);
      arrayBlockingQueue.add("sai");
      arrayBlockingQueue.add("ram");
      arrayBlockingQueue.add("krishna");
      arrayBlockingQueue.add("prasad");
      actionEvent.setText("" + arrayBlockingQueue);
      actionEvent.setOnClickListener(new View.OnClickListener() {
         @SuppressLint("SetTextI18n")
         @Override
         public void onClick(View v) {
            try {
               head = (String) arrayBlockingQueue.take();
            } catch (InterruptedException e) {
               e.printStackTrace();
            }
            actionEvent.setText("" + arrayBlockingQueue);
         }
      });
   }
}

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 an 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 –

Now click on text view, it will remove the first element and display remaining elements as shown below –

Click here to download the project code

raja
Published on 10-Apr-2019 11:39:38
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