[TUT] ListView with a Footer Item

blundell · by **blundell** » Sun Nov 28, 2010 2:57 pm

http://blog.blundell-apps.com/listviewwithfooter/

Moved to my own blog page! Now I can respond to comments faster.

Enjoy:

http://blog.blundell-apps.com/listviewwithfooter/

If you like this post please comment to encourage me to do more.

Blundell

skydeaner · by **skydeaner** » Thu Jan 20, 2011 7:36 am

dude, thanks bunches and please do more mini tuts like this

Luki · by **Luki** » Tue Mar 01, 2011 9:19 am

Crazy Guy you are. I searched for this solution for a very long time. Thanks mate!

blundell · by **blundell** » Mon Oct 24, 2011 2:24 pm

No problem, enjoy!

leethaoqn · by **leethaoqn** » Fri Nov 18, 2011 6:28 am

Hi, guy
I want load 10 item in list . when i scroll end list , it will load 10 item next . How do i do it?

blundell · by **blundell** » Mon Nov 21, 2011 9:28 am

WIthin your adapter, in the getView() method, check to see if your at the bottom of the list (if i==10). If you are, clear your list and load your next 10 items.

leethaoqn · by **leethaoqn** » Mon Nov 21, 2011 4:29 pm

here is my code , may you help me fix it ?
Class adapter :

Code: Select all: public class ImageListAdapter extends BaseAdapter{ private Context context; private List<Image> listImage; public ImageListAdapter(Context context,List<Image> listImage) { // TODO Auto-generated constructor stub this.context=context; this.listImage=listImage; } @Override public int getCount() { // TODO Auto-generated method stub return listImage.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return listImage.get(position); } @Override public long getItemId(int position) { // TODO Auto-generated method stub return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub Image entry = listImage.get(position); LayoutInflater inflater = LayoutInflater.from(context); if(convertView==null) { convertView =inflater.inflate(R.layout.row_layout, null); } TextView txt_ImageName= (TextView)convertView.findViewById(R.id.txtName); TextView txt_ImageSize= (TextView)convertView.findViewById(R.id.txtSize); ImageView txt_ImageView=(ImageView)convertView.findViewById(R.id.ImageView); // get data in imageName txt_ImageName.setText(entry.getName()); //get data in ImageSize txt_ImageSize.setText(entry.getSize()); // convert resource to bitmap String pathName=entry.getIcon(); try { File imageFile = new File(pathName); Bitmap bmp; bmp=decodeFile(imageFile); txt_ImageView.setImageBitmap(bmp); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } //get data in imageview return convertView; } private Bitmap decodeFile(File f){ try { //decode image size BitmapFactory.Options o = new BitmapFactory.Options(); o.inJustDecodeBounds = true; BitmapFactory.decodeStream(new FileInputStream(f),null,o); //Find the correct scale value. It should be the power of 2. final int REQUIRED_SIZE=64; int width_tmp=o.outWidth, height_tmp=o.outHeight; int scale=1; while(true){ if(width_tmp/2<REQUIRED_SIZE || height_tmp/2<REQUIRED_SIZE) break; width_tmp/=2; height_tmp/=2; scale*=2; } //decode with inSampleSize BitmapFactory.Options o2 = new BitmapFactory.Options(); o2.inSampleSize=scale; return BitmapFactory.decodeStream(new FileInputStream(f), null, o2); } catch (FileNotFoundException e) {} return null; } }

Class activity

Code: Select all: public class ImageListActivity extends ListActivity { /** Called when the activity is first created. */ private Cursor myCursor; List<Image> listImage ; int itemsPerPage = 15; boolean loadingMore = false; ListView listview; ImageListAdapter adapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); listview =getListView(); listview.setChoiceMode(2); listImage = new ArrayList<Image>(); // get all cursor myCursor=this.managedQuery(android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI, null, null, null, null); startManagingCursor(myCursor); //add footview View footerView = ((LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.listfooter, null, false); listview.addFooterView(footerView); Log.d("0"," thnh cong"); adapter = new ImageListAdapter(this,listImage); this.setListAdapter(adapter); // event scroll listview.setOnScrollListener(new OnScrollListener() { public void onScrollStateChanged(AbsListView view, int scrollState) { // TODO Auto-generated method stub } public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { // TODO Auto-generated method stub //what is the bottom iten that is visible int lastInScreen = firstVisibleItem + visibleItemCount; // listImage = new ArrayList<Image>(); //is the bottom item visible & not loading more already ? Load more ! if((lastInScreen == totalItemCount) && !(loadingMore)){ for (int i=0; i < itemsPerPage; i++) { myCursor.moveToNext(); //Fill the item with some bogus information String imageName = myCursor.getString(myCursor.getColumnIndexOrThrow(Images.Media.DISPLAY_NAME)); String imageSize= myCursor.getString(myCursor.getColumnIndexOrThrow(Images.Media.SIZE)); String imageIcon= myCursor.getString(myCursor.getColumnIndexOrThrow(Images.Media.DATA)); listImage.add(new Image(imageName, imageSize, imageIcon)); Log.d("1","add thnh cong"); }} adapter.notifyDataSetChanged(); } });

[TUT] ListView with a Footer Item

[TUT] ListView with a Footer Item

Re: [TUT] ListView with a Footer Item

Re: [TUT] ListView with a Footer Item

Re: [TUT] ListView with a Footer Item

Re: [TUT] ListView with a Footer Item

Re: [TUT] ListView with a Footer Item

Re: [TUT] ListView with a Footer Item

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