Android ProgressBar Kotlin

Below is a simple example of how you can implement a ProgressBar in Android using Java. In this example, we'll create a basic Android application with a ProgressBar and a Button. When you click the button, the progress bar will start progressing

Here is the tutorial for Java

There Are Some Common Attributes for ProgressBar :

Step 1:

Create a new XML drawable resource:

Create a new XML file in the res/drawable directory. Let's name it progress_background.xml.

<!-- res/drawable/progress_background.xml -->
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <!-- Background shape -->
    <item>
        <shape>
            <solid android:color="#E2918C8C"/> <!-- Background color -->
            <corners android:radius="8dp"/> <!-- Corner radius -->
        </shape>
    </item>

    <!-- Progress shape -->
    <item android:id="@android:id/progress">
        <clip>
            <shape>
                <solid android:color="#1D201D"/> <!-- Progress color -->
                <corners android:radius="8dp"/> <!-- Corner radius (same as background) -->
            </shape>
        </clip>
    </item>

</layer-list>

Step 2:

File open res/layout/activity_main.xml file −:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_height="match_parent"
    tools:context=".MainActivity">


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:layout_margin="20dp"
        android:orientation="vertical">


        <ProgressBar
            android:id="@+id/progressBar"
            style="?android:attr/progressBarStyle"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <ProgressBar
            android:id="@+id/simpleProgressBar"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <Button
            android:id="@+id/buttonStart"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Start Progress" />
    </LinearLayout>



</RelativeLayout>

Step 3:

File open com.microappvalley.newtestproject/MainActivity.kt file −

package com.microappvalley.newtestproject

import android.annotation.SuppressLint
import android.opengl.Visibility

import android.os.Bundle
import android.os.Handler
import android.os.Looper
import android.view.View
import android.view.View.GONE
import android.widget.Button

import android.widget.ProgressBar

import androidx.appcompat.app.AppCompatActivity

class MainActivity : AppCompatActivity() {
    private lateinit var progressBar: ProgressBar
    private lateinit var simpleProgressBar: ProgressBar
    private lateinit var buttonStart: Button

    private var progressStatus = 0
    private val handler = Handler(Looper.getMainLooper())
    @SuppressLint("MissingInflatedId")
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        // Find the ProgressBar in the layout
        progressBar = findViewById(R.id.progressBar)
        simpleProgressBar = findViewById(R.id.simpleProgressBar)
        buttonStart = findViewById(R.id.buttonStart)
        progressBar.visibility=View.GONE


        // Start a thread to update the progres
        buttonStart.setOnClickListener {
            progressBar.visibility=View.VISIBLE
            Thread {
                while (progressStatus < 100) {
                    // Simulate a time-consuming task
                    progressStatus += 1

                    // Update the progress on the UI thread
                    handler.post {
                        simpleProgressBar.progress = progressStatus
                    }

                    try {
                        // Simulate some delay (you can replace this with your actual task)
                        Thread.sleep(50)
                    } catch (e: InterruptedException) {
                        e.printStackTrace()
                    }
                }
            }.start()
        }



    }
}

Open Device Manager, run the emulator, and  then run the application. Next, check the working output and check the output  you declared in your code.