Question

I am going to implement an image viewer, where I want to show one image at a time.

When the user touches the image with their finger and move the image to left/right, the next image should show.

I am wondering which view class I should use for this kind of image viewer? (Some kind of image list???)

P.S.: During the display of the current image, the neighbor(left & right) images are not visible, that is, the current image occupies the whole view area.

Answer 1

You should use the Gallery view, see tutorial.

To ensure that only one image is shown at a time, you can either

• Set the image width to match the screen width (using ImageView.setLayoutParams)

      imageView.setLayoutParams(new Gallery.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
  

• Set the spacing of the gallery (using Gallery.setSpacing). Experiment with the spacing value until you get the desired result.