Change button in listview with reference to data - sqlite

Question

i can speak english just little..
i made listview with sqlite db.
I want to implement this function
ex)
i have sqlite db (with listview. i made already. and listview have button)
rowId 1, 2, 3
number 0, 1, 0
i need like this
if ( number == 0) {
button.backgroundResource(R.drawble.icon1);
} else if ( number == 1) {
button.backgroundResource(R.drawble.icon2);
}
Attached pictures for easier understanding.
enter image description here
and this is my listadapter
public class ListAdapter extends BaseAdapter implements View.OnClickListener {
public interface ListBtnClickListener {
void onListBtnClick(int position, View view);
}
public ListAdapter(Context mContext, ArrayList<SongList> mList, ListBtnClickListener clickListener) {
this.mContext = mContext;
this.mList = mList;
this.listBtnClickListener = clickListener;
layoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mSelectedItemsIds = new SparseBooleanArray();
}
#Override
public int getCount() {
return mList.size();
}
#Override
public Object getItem(int position) {
return mList.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, final ViewGroup parent) {
View view = convertView;
if (view == null) {
viewHolder = new ViewHolder();
view = layoutInflater.inflate(R.layout.list_item, null);
viewHolder.relativeLayout = (RelativeLayout) view.findViewById(R.id.listview_item);
view.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) view.getTag();
}
_url = (TextView) view.findViewById(R.id.song_url);
_name = (TextView) view.findViewById(R.id.song_name);
_time = (TextView) view.findViewById(R.id.song_time);
_img = (ImageView) view.findViewById(R.id.song_thumbnail);
favorite = (Button) view.findViewById(R.id.favorite);
Bitmap bitmap = BitmapFactory.decodeByteArray(mList.get(position).get_img(), 0, mList.get(position).get_img().length);
_img.setImageBitmap(bitmap);
final SongList listViewItem = mList.get(position);
if (mList != null) {
_url.setText(listViewItem.get_url());
_name.setText(listViewItem.get_name());
_time.setText(listViewItem.get_time());
}
final SongList songList = mList.get(position);
favorite.setTag(position);
favorite.setOnClickListener(this);
return view;
}
#Override
public void onClick(View view) {
if (this.listBtnClickListener != null) {
this.listBtnClickListener.onListBtnClick((int) view.getTag(), view);
}
}
public class ViewHolder {
private RelativeLayout relativeLayout = null;
}
}

Answer 1

I assume you have some method like SongList.getNumber(). You can change your code in if block like this:
if (mList != null) {
_url.setText(listViewItem.get_url());
_name.setText(listViewItem.get_name());
_time.setText(listViewItem.get_time());
// assuming you have getNumber() method
int number = listViewItem.getNumber();
// checking if number is equal to 0
if(number == 0){
favorite.backgroundResource(R.drawble.icon1);
} else{
favorite.backgroundResource(R.drawble.icon2);
}
}
Edit: If you are storing number variable for only changing the background of button, then you can just use position parameter provided in getView() method. All you have to do is check if position is even or odd and change the background of the button accordingly.