Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import android.content.Context;
import android.graphics.Bitmap;

import android.graphics.Bitmap.Config;

import android.renderscript.Allocation;
import android.renderscript.Element;
import android.renderscript.RenderScript;
import android.renderscript.ScriptIntrinsicBlur;

public class Main {
    public static Bitmap blurBitmap(Bitmap bitmap, Context context) {

        //Let's create an empty bitmap with the same size of the bitmap we want to blur  
        Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);

        //Instantiate a new Renderscript  
        RenderScript rs = RenderScript.create(context);

        //Create an Intrinsic Blur Script using the Renderscript  
        ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));

        //Create the Allocations (in/out) with the Renderscript and the in/out bitmaps  
        Allocation allIn = Allocation.createFromBitmap(rs, bitmap);
        Allocation allOut = Allocation.createFromBitmap(rs, outBitmap);

        //Set the radius of the blur  
        blurScript.setRadius(25.f);

        //Perform the Renderscript  
        blurScript.setInput(allIn);
        blurScript.forEach(allOut);

        //Copy the final bitmap created by the out Allocation to the outBitmap  
        allOut.copyTo(outBitmap);

        //recycle the original bitmap  
        bitmap.recycle();

        //After finishing everything, we destroy the Renderscript.  
        rs.destroy();

        return outBitmap;

    }
}