getView from customized ArrayAdapter isn't called

Question

For some reasons getView(int position, View convertView, ViewGroup parent) of my customized ArrayAdapter isn't called and android displays an empty list. I've already Override getCount()

public class CEL_ElementsFromXMLArrayAdapter extends ArrayAdapter<LinkedHashMap<RoomItem, LinkedHashMap<ItemType, List<RoomDamage>>>> {

private Context context;
private int resource;
private List<LinkedHashMap<RoomItem, LinkedHashMap<ItemType, List<RoomDamage>>>> elementsFromXMLList;

public CEL_ElementsFromXMLArrayAdapter(Context context, int resource,
        List<LinkedHashMap<RoomItem, LinkedHashMap<ItemType, List<RoomDamage>>>> elementsFromXMLList) {
    super(context, resource, elementsFromXMLList);

    this.context = context;
    this.resource = resource;
    this.elementsFromXMLList = elementsFromXMLList;
}


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

    final int positionItem = position;
    View view;
    LayoutInflater viewInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    if(convertView != null)
        view = convertView;
    else
        view = viewInflater.inflate(R.layout.etat_piece_item, parent, false);
    {...}
    return view;
}

@Override
public int getCount() {
    return this.elementsFromXMLList.size();
}

And this is how I set Adapter:

CEL_ElementsFromXMLArrayAdapter cel_ElementsFromXMLArrayAdapter = new CEL_ElementsFromXMLArrayAdapter(mContext, R.layout.etat_piece_item, elementsFromXMLLinkedHashMap);
            listViewElements.setAdapter(cel_ElementsFromXMLArrayAdapter);

I'm looking for a solution since yesterday, I have read all of the posts on StackOverflow but none match my issue. So I would like to know, if it could come from LinkedHashMap<...>

Edit: this is my layout R.layout.etat_piece_item

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/mis2_layout"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="1dip"
    android:background="@color/white"
    android:orientation="horizontal"
    android:weightSum="12" >

    <ImageView
        android:layout_width="@dimen/stroke_dim"
        android:layout_height="fill_parent"
        android:background="@color/light_line"
        android:contentDescription="@string/img" />

    <TextView
        android:id="@+id/descriptionElement_TextView"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="2"
        android:clickable="true"
        android:gravity="center"
        android:paddingBottom="5dp"
        android:paddingTop="5dp"
        android:textColor="@color/black1"
        android:textSize="@dimen/mis_item_size" />

    <ImageView
        android:id="@+id/stroke_dim"
        android:layout_width="@dimen/stroke_dim"
        android:layout_height="fill_parent"
        android:background="@color/light_line"
        android:contentDescription="@string/img" />

    <Spinner
        android:id="@+id/typeElement_Spinner"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="3dp"
        android:layout_marginRight="3dp"
        android:layout_weight="2.5"
        android:background="@drawable/spinner_ab_default"
        android:clickable="true"
        android:paddingLeft="5dp"
        android:paddingTop="10dp"
        android:textSize="@dimen/mis_item_size"
        android:textStyle="normal" />

    <ImageView
        android:layout_width="@dimen/stroke_dim"
        android:layout_height="fill_parent"
        android:background="@color/light_line"
        android:contentDescription="@string/img" />

    <EditText
        android:id="@+id/quantiteElement_EdiText"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:inputType="number"
        android:paddingBottom="5dp"
        android:paddingTop="5dp"
        android:singleLine="true"
        android:textColor="@color/black1"
        android:textSize="@dimen/mis_item_size" />

    <ImageView
        android:layout_width="@dimen/stroke_dim"
        android:layout_height="fill_parent"
        android:background="@color/light_line"
        android:contentDescription="@string/img" />

    <TextView
        android:id="@+id/etatElement_TextView"
        style="@android:style/Widget.Holo.Light.EditText"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_marginLeft="3dp"
        android:layout_marginRight="3dp"
        android:layout_weight="1.5"
        android:clickable="true"
        android:focusable="false"
        android:focusableInTouchMode="false"
        android:onClick="callChooseEtat"
        android:paddingLeft="5dp"
        android:paddingTop="10dp"
        android:textStyle="normal" />

    <ImageView
        android:layout_width="@dimen/stroke_dim"
        android:layout_height="fill_parent"
        android:background="@color/light_line"
        android:contentDescription="@string/img" />

    <TextView
        android:id="@+id/ent_obervations_val"
        style="@android:style/Widget.Holo.Light.EditText"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="2"
        android:clickable="true"
        android:gravity="center"
        android:paddingBottom="5dp"
        android:paddingTop="5dp"
        android:singleLine="true"
        android:textColor="@color/black1"
        android:textSize="@dimen/mis_item_size" />

    <ImageView
        android:layout_width="@dimen/stroke_dim"
        android:layout_height="fill_parent"
        android:background="@color/light_line"
        android:contentDescription="@string/img" />

    <LinearLayout
        android:id="@+id/imageLayout"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:clickable="true"
        android:gravity="center"
        android:onClick="callCameraInList" >

        <ImageView
            android:id="@+id/photoElement_ImageView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical|center_horizontal"
            android:contentDescription="@string/img"
            android:src="@drawable/photo_img" />
    </LinearLayout>

    <ImageView
        android:layout_width="@dimen/stroke_dim"
        android:layout_height="fill_parent"
        android:background="@color/light_line"
        android:contentDescription="@string/img" />

    <EditText
        android:id="@+id/trouElement_EditText"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:hint="@string/zero"
        android:inputType="number"
        android:paddingBottom="5dp"
        android:paddingTop="5dp"
        android:singleLine="true"
        android:textColor="@color/black1"
        android:textSize="@dimen/mis_item_size" />

    <ImageView
        android:layout_width="@dimen/stroke_dim"
        android:layout_height="fill_parent"
        android:background="@color/light_line"
        android:contentDescription="@string/img" />

    <TextView
        android:id="@+id/actionElement_TextView"
        style="@android:style/Widget.Holo.Light.EditText"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:clickable="true"
        android:focusable="false"
        android:focusableInTouchMode="false"
        android:gravity="center"
        android:paddingBottom="5dp"
        android:paddingTop="5dp"
        android:singleLine="true"
        android:textColor="@color/black1"
        android:textSize="@dimen/mis_item_size" />

    <ImageView
        android:layout_width="@dimen/stroke_dim"
        android:layout_height="fill_parent"
        android:background="@color/light_line"
        android:contentDescription="@string/img" />

</LinearLayout>

Answer 1

    public class CEL_ElementsFromXMLArrayAdapter extends ArrayAdapter<LinkedHashMap<RoomItem, LinkedHashMap<ItemType, List<RoomDamage>>>> {

    private Context context;
    private int resource;
    private List<LinkedHashMap<RoomItem, LinkedHashMap<ItemType, List<RoomDamage>>>> elementsFromXMLList;

    public CEL_ElementsFromXMLArrayAdapter(Context context, int resource,
            List<LinkedHashMap<RoomItem, LinkedHashMap<ItemType, List<RoomDamage>>>> elementsFromXMLList) {
        super(context, resource, elementsFromXMLList);

        this.context = context;
        this.resource = resource;
        this.elementsFromXMLList = elementsFromXMLList;
    }


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

        final int positionItem = position;
        View view = convertView;
        View v = (View)LayoutInflater.from(context).inflate(your layout,parent, false);
        // this will make a list item from your layout then insert your data into it's child views

        return v;

    }

    @Override
    public int getCount() {
        return this.elementsFromXMLList.size();
    }

Answer 2

Did u try to inflate view actually instead of using convert view. Convertview will be not null only when atleast one view is populated inside the array adapter

Answer 3

It's being called, it's only returning a null value. ConvertView is null for the first getView call, so you have to inflate something (even if its not your first position nothing guarantees that it isnt null) and you dont seem to be inflating anything.

Try this:

if(convertView != null)
  view = convertView;
else
  view = viewInflater.inflate(R.layout.yourlayout, parent, false);

Where R.layout.yourlayout is the layout you want to populate your list with.