Android - How can I load an image to a ImageView?

Question

Hello, I want to make a simple image viewing program, that just takes the images from a certain folder, and loads them from it.

I did some coding with less thinking, so I did stumble upon this:

Button btn = (Button) this.findViewById(R.id.buttonNext);
        btn.setOnClickListener(new OnClickListener() {

   public void onClick(View v) 
   {
    View rootView = (View)v.getParent();
    ImageView im = (ImageView) rootView.findViewById(R.id.imageView);
    //and here comes the problem...


   }

I have all my images from the folder loaded and have a collection, containg of all their absolute paths. Now, I want my imageView to switch its picture src with one from my collection. But how can I do that ?

Answer 1

Use Bitmaps. After reading the file from the absolute paths, convert to Bitmaps (see BitmapFactory) and apply the Bitmap to the ImageView.

Answer 2

Collections Filled with Absolute Paths? I'd recommend you create an int Array of their Id's (R.drawable.image01) then use the setImageResource(arr[3]) to set it...

But if you have to use the paths...then this page might help...