[android-developers] Re: show more photos

2010-01-28 Thread Nerdrow 
- cache the images to disk
- use a ListString to store the paths to the cached images
- extend a BaseAdapter and use the ListString as your data source
- add a setPage(int page) method to set which page of 10 images you're
on
- in getView() adjust the value of position to account for the page
index

quick example from memory:


public class PagedPhotoAdapter extends BaseAdapter {

  private static final int PHOTOS_PER_PAGE = 10;

  private final LayoutInflater mInflater;
  private final ListString mPhotoPaths;
  private final int mPageCount;

  private int mPage = 0;

  public PagedPhotoAdapter(Context context, ListString photoPaths) {
mInflater = LayoutInflater.fromContext(context);

mPhotoPaths = photoPaths;

mPageCount = (mPageCount.size()/PHOTOS_PER_PAGE);
  }


  public void setPage(int page) {
mPage = page  0 ? 0 : page  mPageCount ? mPageCount : page;
  }
  @Override public int getCount() {
return PHOTOS_PER_PAGE;
  }
  @Override public Object getItem(int position) {
return position;
  }
  @Override public int getItemId(int position) {
return position;
  }
  @Override public View getView(int position, View convertView,
ViewGroup parent) {
final int adjPosition = ((PHOTOS_PER_PAGE * mPage)+position)-1;

final ImageView imageView =
  (ImageView)(convertView==null?mInflater.inflate
(R.layout.layout_id, null):convertView);

imageView.setImageBitmap(BitmapFactory.decodeFile(mPhotoPaths.get
(adjPosition)));

return imageView;
  }

}


On Jan 28, 4:40 am, surya prakash surya@gmail.com wrote:
 Hi
 I am getting photos from website and display them in Grid view, but
 here I do not want display all of them at time,
 1. I want show only 10 photos and a more link below the grid , but i
 can display more link at top, how can I add it at bottom?
 2.when user click on more it should display the another 10 photos
 only, I need to refresh the grid, how can we refresh the grid?

 Thank  you

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Re: [android-developers] Re: show more photos

2010-01-28 Thread Frank Weiss 
It may also help you to look at Romain Guy's PhotoStream demo application.
The source is available at code.android.com.

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[android-developers] Re: show more photos

2010-01-28 Thread sunrises 
Thank you Nerdrow

On Jan 29, 3:55 am, Nerdrow troybe...@gmail.com wrote:
 - cache the images to disk
 - use a ListString to store the paths to the cached images
 - extend a BaseAdapter and use the ListString as your data source
 - add a setPage(int page) method to set which page of 10 images you're
 on
 - in getView() adjust the value of position to account for the page
 index

 quick example from memory:

 public class PagedPhotoAdapter extends BaseAdapter {

   private static final int PHOTOS_PER_PAGE = 10;

   private final LayoutInflater mInflater;
   private final ListString mPhotoPaths;
   private final int mPageCount;

   private int mPage = 0;

   public PagedPhotoAdapter(Context context, ListString photoPaths) {
     mInflater = LayoutInflater.fromContext(context);

     mPhotoPaths = photoPaths;

     mPageCount = (mPageCount.size()/PHOTOS_PER_PAGE);
   }

   public void setPage(int page) {
     mPage = page  0 ? 0 : page  mPageCount ? mPageCount : page;
   }
   @Override public int getCount() {
     return PHOTOS_PER_PAGE;
   }
   @Override public Object getItem(int position) {
     return position;
   }
   @Override public int getItemId(int position) {
     return position;
   }
   @Override public View getView(int position, View convertView,
 ViewGroup parent) {
     final int adjPosition = ((PHOTOS_PER_PAGE * mPage)+position)-1;

     final ImageView imageView =
       (ImageView)(convertView==null?mInflater.inflate
 (R.layout.layout_id, null):convertView);

     imageView.setImageBitmap(BitmapFactory.decodeFile(mPhotoPaths.get
 (adjPosition)));

     return imageView;
   }

 }

 On Jan 28, 4:40 am, surya prakash surya@gmail.com wrote:



  Hi
  I am getting photos from website and display them in Grid view, but
  here I do not want display all of them at time,
  1. I want show only 10 photos and a more link below the grid , but i
  can display more link at top, how can I add it at bottom?
  2.when user click on more it should display the another 10 photos
  only, I need to refresh the grid, how can we refresh the grid?

  Thank  you

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[android-developers] Re: show more photos

2010-01-28 Thread sunrises 
Thank you Frank Weiss

On Jan 29, 8:11 am, Frank Weiss fewe...@gmail.com wrote:
 It may also help you to look at Romain Guy's PhotoStream demo application.
 The source is available at code.android.com.

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