How to set Blur background when dialog create

Question

How to set Blur background when dialog create?

I found DialogFragment only and AlertDialog but I want to set in Dialogin activity

How to create it or What's library recommend?

final Dialog dialog = new Dialog(this);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        Window window = dialog.getWindow();
        window.setBackgroundDrawableResource(android.R.color.transparent);
        window.setLayout(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
        dialog.setContentView(R.layout.register_policy_dialog);

Answer 1

try this

dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND); 

or try this you can apply a custom theme to your dialog like this

Dialog customDialog= new Dialog(MainActivity.this,R.style.mytheme); 
Window window = customDialog.getWindow();
window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT);
window.setGravity(Gravity.CENTER);

now create the theme like this

<style name="mytheme" parent="android:style/Theme.Translucent">
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:backgroundDimEnabled">true</item>
    <item name="android:background">@android:color/transparent</item>        
</style>

and also check this AlertDialog with Blur background in possition center