My code is currently using an ArrayAdapter with a single TextView in layout file, and everything works well.
My current layout is as follows (R.layout.list_header):
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/list_header_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingTop="2dip"
android:paddingBottom="2dip"
android:paddingLeft="5dip"
android:textSize="16sp"
android:textColor="#ffffff"
style="?android:attr/listSeparatorTextViewStyle" />
And I create my adapter this way:
new ArrayAdapter<String>(context, R.layout.list_header);
Now, I want to add a picture in my adapter, at the left side of my textView. I first looked at this thread that helped me use more than just a textView: "ArrayAdapter requires the resource ID to be a TextView" xml problems
My new layout is now as follows:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="@+id/list_header_picture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="line_logo" />
<TextView
android:id="@+id/list_header_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingTop="2dip"
android:paddingBottom="2dip"
android:paddingLeft="5dip"
android:textSize="16sp"
android:textColor="#ffffff"
style="?android:attr/listSeparatorTextViewStyle" />
</LinearLayout>
And the adapter is created this way:
new ArrayAdapter<String>(context, R.layout.list_header, R.id.list_header_title);
And this is where I get the error java.lang.ClassCastException: android.widget.LinearLayout$Params cannot be cast to android.widget.AbsListView$LayoutParams. I can't see what is wrong here. I tried to remove the imageView, but this doesn't change anything.
Any idea on what could be causing the problem?
EDIT:
Here is my adapter class:
public class SeparatedListAdapter extends BaseAdapter
{
public final Map<String, Adapter> sections = new LinkedHashMap<String, Adapter>();
public final ArrayAdapter<String> headers;
public final static int TYPE_SECTION_HEADER = 0;
public SeparatedListAdapter(Context context) {
headers = new ArrayAdapter<String>(context, R.layout.list_header);//, R.id.list_header_title);
}
public void addSection(String section, Adapter adapter) {
this.headers.add(section);
this.sections.put(section, adapter);
}
public Object getItem(int position) {
for (Object section : this.sections.keySet())
{
Adapter adapter = sections.get(section);
int size = adapter.getCount() + 1;
// check if position inside this section
if (position == 0) return section;
if (position < size) return adapter.getItem(position - 1);
// otherwise jump into next section
position -= size;
}
return null;
}
public int getCount() {
// total together all sections, plus one for each section header
int total = 0;
for (Adapter adapter : this.sections.values())
total += adapter.getCount() + 1;
return total;
}
@Override
public int getViewTypeCount() {
// assume that headers count as one, then total all sections
int total = 1;
for (Adapter adapter : this.sections.values())
total += adapter.getViewTypeCount();
return total;
}
@Override
public int getItemViewType(int position) {
int type = 1;
for (Object section : this.sections.keySet())
{
Adapter adapter = sections.get(section);
int size = adapter.getCount() + 1;
// check if position inside this section
if (position == 0) return TYPE_SECTION_HEADER;
if (position < size) return type + adapter.getItemViewType(position - 1);
// otherwise jump into next section
position -= size;
type += adapter.getViewTypeCount();
}
return -1;
}
public boolean areAllItemsSelectable() {
return false;
}
@Override
public boolean isEnabled(int position) {
//return (getItemViewType(position) != TYPE_SECTION_HEADER);
return false;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
int sectionnum = 0;
for (Object section : this.sections.keySet())
{
Adapter adapter = sections.get(section);
int size = adapter.getCount() + 1;
// check if position inside this section
if (position == 0) {
//CREATE HEADER VIEW
View lHeaderView = headers.getView(sectionnum, convertView, parent);
String headerText = ((TextView) lHeaderView.findViewById(R.id.list_header_title)).getText().toString();
String currentLine = "highway";
String currentDirection = "upwards";
if (currentLine.startsWith("N")) {
//((TextView) lHeaderView.findViewById(R.id.list_header_title)).setTextColor(Color.rgb(10, 10, 23));
((TextView) lHeaderView).setTextColor(Color.rgb(10, 10, 23));
lHeaderView.setBackgroundColor(Color.rgb(42, 73, 144));
} else {
//((TextView) lHeaderView.findViewById(R.id.list_header_title)).setTextColor(Color.rgb(255, 255, 255));
((TextView) lHeaderView).setTextColor(Color.rgb(255, 255, 255));
lHeaderView.setBackgroundColor(Color.rgb(10, 10, 23));
}
//return (TextView)lHeaderView.findViewById(R.id.list_header_title);
return lHeaderView;
} else if (position < size) {
//CREATE DETAILS VIEW
View lHeaderView = headers.getView(sectionnum, convertView, parent);
String headerText = ((TextView) lHeaderView).getText().toString();
String currentLine = "route";
View lView = adapter.getView(position - 1, convertView, parent);
lView.setBackgroundColor(Color.rgb(10, 10, 23));
if (currentLine.startsWith("N")) {
((TextView) lView).setTextColor(Color.rgb(10, 10, 23));
lView.setBackgroundColor(Color.rgb(42, 73, 144));
} else {
((TextView) lView).setTextColor(Color.rgb(0, 0, 0));
lView.setBackgroundColor(Color.rgb(10, 10, 23));
}
return lView;
}
// otherwise jump into next section
position -= size;
sectionnum++;
}
return null;
}
@Override
public long getItemId(int position) {
return position;
}
}
