Question

How can I apply zoom control in an ImageView dynamically? My minimum SDK version is 1.6. I tried most of the samples but in all those an image in the ImageView is set on Zoom-in and Zoom-out. I want to Zoom-in and Zoom-out an ImageView. I want to increase ImageView width and height while Zoom-in and reduce ImageView width and height while Zoom-out. Can any one suggest a solution?

Answer 1

yes this is the code to increase the size

140 is the factor by which image is mulitplied maintaining the height to width ratio
you can change this as you like


  Bitmap originalBitmap = BitmapFactory.decodeFile(IssueDataHandler.CONTENT_LOCAL_PATH+"/"+coverImageName.trim());
    Bitmap bitmap=originalBitmap;
    if (bitmap !=null) {
        int h = bitmap.getHeight();
        int w = bitmap.getWidth();
        h = 140*h/w;
        w = 140;
        bitmap = Bitmap.createScaledBitmap(bitmap, w, h, true);
        img.setImageBitmap(bitmap);
    }