how to make glow effect in my images?

Question

I created simple gridview application. Now I wish to create glow effect for my images, please help me how to create glow effect for my gird view images? if anyone know pleas

Answer 1

You can use the following code to make each image in your custom view glow

the getView() function of the image adapter should be like this:

public View getView(int position, View convertView, ViewGroup parent)
{
ImageView imageView;

if (convertView == null)
{
imageView = new ImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams(85, 85));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8); 
}
else
{
   imageView = (ImageView) convertView;
   Bitmap Image=BitmapFactory.decodeResource(mContext.getResources(),mThumbIds[position]);
        Image=Image.copy(Bitmap.Config.ARGB_8888,true);
        Paint paint=new Paint();
        paint.setDither(true);
        paint.setFilterBitmap(true);
        Bitmap glow=BitmapFactory.decodeResource(mContext.getResources(), R.drawable.glow_image);
        Bitmap bitmap=Bitmap.createBitmap(Image.getWidth(),Image.getHeight(), Config.ARGB_8888);
        Canvas canvas=new Canvas(bitmap);

        canvas.drawBitmap(glow, new Rect(0,0,glow.getWidth(),glow.getHeight()), new Rect(0,0,Image.getWidth(),Image.getHeight()),paint);
        canvas.drawBitmap(Image, new Rect(0,0,Image.getWidth(),Image.getHeight()), new Rect(0+5,0+5,Image.getWidth()-5,Image.getHeight()-5),paint);



        imageView.setImageBitmap(bitmap);


   return imageView;
   }

R.drawable.glow_image is the png image you can use as the grow effect image

Glow.png