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
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) {
}
});
}
}
