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How to create Blur Effect on an Image in Android

Posted on November 24, 2021November 24, 2021 By christo No Comments on How to create Blur Effect on an Image in Android

Full source code to create Blur Effect on an Image using a 3rd party library called BlurImageView to add a blur effect to an ImageView. We will also change the intensitiy with a SeekBar using the OnSeekBarChangeListener onProgressChanged method

Table of Contents

    • Add the JitPack repository to your build file
  • Add the dependency
    • activity_main.xml
    • MainActivity.java

Add the JitPack repository to your build file

allprojects {
		repositories {
			...
			maven { url "https://jitpack.io" }
		}
	}

Add the dependency

dependencies {
		implementation 'com.github.jgabrielfreitas:BlurImageView:1.0.1'
	}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.application.blurproject.MainActivity">

    <com.jgabrielfreitas.core.BlurImageView
        android:id="@+id/imageView"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_above="@id/seekBar"
        android:layout_alignParentTop="true"
        android:scaleType="centerCrop"
        android:src="@drawable/image" />

    <SeekBar
        android:id="@+id/seekBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="true"
        android:layout_alignParentBottom="true" />

</RelativeLayout>

MainActivity.java

package com.example.application.blurproject;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.SeekBar;

import com.jgabrielfreitas.core.BlurImageView;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        final BlurImageView blurImageView = (BlurImageView) findViewById(R.id.imageView);
        SeekBar seekBar = (SeekBar) findViewById(R.id.seekBar);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                blurImageView.setBlur(progress / 4);
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

            }
        });
    }
}
android Tags:Android, Blur Effect on an Image

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