I am trying to set a background color for item when the user click on a child item in my expandableListView
.
Here is the code :
expListView.setOnChildClickListener(new OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v, final int groupPosition, final int childPosition, long id) {
AlertDialog.Builder builder = new AlertDialog.Builder(New_annonce_act_step2.this);
builder.setMessage("Vous avez choisi la catégorie " +listDataChild.get(listDataHeader.get(groupPosition)).get(childPosition) +", Continuer ?")
.setPositiveButton("Oui", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Intent myIntent = new Intent(New_annonce_act_step2.this, New_annonce_act_step22.class);
myIntent.putExtra("titre", titre);
myIntent.putExtra("categorie", categorie);
New_annonce_act_step2.this.startActivity(myIntent);
finish();
overridePendingTransition(R.anim.left_to_right, R.anim.right_to_left);
}
})
.setNegativeButton("Non", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// User cancelled the dialog
}
});
// Create the AlertDialog object and return it
builder.create();
builder.show();
return false;
}
});
Here is the ExpandableListView declaration in layout :
<ExpandableListView
android:id="@+id/nouvelle_annonce_categorie"
android:layout_width="match_parent"
android:layout_height="320dp"
android:layout_marginLeft="1dp"
android:layout_marginRight="1dp"
android:choiceMode = "singleChoice"
android:listSelector = "@drawable/selector_categorie_item"
android:layout_marginTop="15dp" />
And here is the coe of selector_categorie_item.xml :
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"
android:exitFadeDuration="@android:integer/config_mediumAnimTime">
<item android:drawable="@android:color/holo_blue_bright" android:state_pressed="true"/>
<item android:drawable="@android:color/holo_blue_light" android:state_selected="true"/>
<item android:drawable="@android:color/holo_blue_dark" android:state_activated="true"/>
</selector>
this worked for me:
expandableListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View view, int groupPosition, long id) {
int index = parent.getFlatListPosition(ExpandableListView
.getPackedPositionForGroup(groupPosition));
parent.setItemChecked(index, true);
return false;
}
});
expandableListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
/*Toast.makeText(scanTemplateFragment.getActivity(),
expandableListTitle.get(groupPosition)
+ " -> "
+ expandableListDetail.get(
expandableListTitle.get(groupPosition)).get(
childPosition), Toast.LENGTH_SHORT).show();*/
int index = parent.getFlatListPosition(ExpandableListView
.getPackedPositionForChild(groupPosition, childPosition));
parent.setItemChecked(index, true);
return false;
}
});
and set background from list_item.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/tvListItem"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft"
android:paddingTop="10dp"
android:background="@drawable/row_highlighter"
android:paddingBottom="10dp" />
</LinearLayout>
row_highlighter.xml:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@color/std_color_1_bright" android:state_activated="true"/>
<item android:drawable="@android:color/transparent"/>
</selector>