CODEWITHSUNDEEP
androidlistviewbaseadapter
Makoto
Makoto

Reputation: 1475

Custom Adapter error in getView()

I have a Custom adapter that extends BaseAdapter, it's for a Navigation Drawer.

But for some reason once I set my listview adapter I get an error; NullPointException; in the getView() method, where I declare the ImageView. Despite many researches I can't understand why. Anyone knows? the App uses support v7 and ActionBarActivity

Thx!

public class DrawerItemAdapter extends BaseAdapter {

 Context mContext;
 int mLayoutResourceId;
 ObjectDrawerItem mData[] = null;


// Constructor
public DrawerItemAdapter(Context context, int layoutResourceId, ObjectDrawerItem[] data) {
    this.mContext = context;
    this.mLayoutResourceId = layoutResourceId;
    this.mData = data;
}


@Override
public int getCount() {
    return mData.length;
}

@Override
public Object getItem(int position) {
    return mData[position];
}

@Override
public long getItemId(int position) {
    return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    View listItem = convertView;
    ObjectDrawerItem objectDrawerItem = mData[position];

    LayoutInflater inflater = ((ActionBarActivity) mContext).getLayoutInflater();
    inflater.inflate(mLayoutResourceId, parent, false);

    ImageView iconImageView = (ImageView) listItem.findViewById(R.id.drawer_item_icon);
    TextView titleTextView = (TextView) listItem.findViewById(R.id.drawer_item_title);

    iconImageView.setImageDrawable(listItem.getResources().getDrawable(objectDrawerItem.getmIcon()));
    titleTextView.setText(objectDrawerItem.getmTitle());

    return listItem;
}
}

Upvotes: 0

Views: 931

Answers (2)

Cüneyt
Cüneyt

Reputation: 2585

use inflater.findViewById()... 

 ImageView iconImageView = (ImageView) inflater.findViewById(R.id.drawer_item_icon);
        TextView titleTextView = (TextView) inflater.findViewById(R.id.drawer_item_title);

change your code with this.

Upvotes: 0

thisbytes
thisbytes

Reputation: 817

I'm looking at this line: inflater.inflate(mLayoutResourceId, parent, false);

You seem to have forgotten to assign the returned view to listItem

Upvotes: 2

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