android - onClick fired, but does not get right listview item -
i have layout items of listview:
<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:padding="10dp"> <imageview android:id="@+id/carticon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centervertical="true" android:layout_marginright="10dp" android:onclick="addtocartclick" android:src="@drawable/ic_launcher" /> <textview android:id="@+id/itemname" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_margin="5dp" android:layout_torightof="@id/carticon" android:text="filé mignon" android:textappearance="@android:style/textappearance.small" android:typeface="normal" /> <tablelayout android:id="@+id/tableinfo" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@id/itemname" android:layout_torightof="@id/carticon" android:weightsum="3"> <tablerow android:layout_width="match_parent" android:layout_height="match_parent"> <textview android:id="@+id/qtytext" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:text="qtd" android:textalignment="center" android:textappearance="?android:attr/textappearancesmall" /> <textview android:id="@+id/pricetext" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:text="preço" android:textalignment="center" android:textappearance="?android:attr/textappearancesmall" /> <textview android:id="@+id/totaltext" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:text="total" android:textalignment="center" android:textappearance="?android:attr/textappearancesmall" /> </tablerow> <tablerow android:layout_width="match_parent" android:layout_height="match_parent"> <textview android:id="@+id/qty" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:text="2 kg" android:textalignment="center" android:textappearance="?android:attr/textappearancesmall" /> <textview android:id="@+id/price" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:text="r$ 75,00" android:textalignment="center" android:textappearance="?android:attr/textappearancesmall" /> <textview android:id="@+id/total" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:text="r$ 150,00" android:textalignment="center" android:textappearance="?android:attr/textappearancesmall" /> </tablerow> </tablelayout> </relativelayout> and imageview onclick method:
android:onclick="addtocartclick" the onclick fires when tap imageview not correct view.
want replace image when onclick occurs, , replaces, not imageview. replaces several others. seems random.
code onclick @ follows:
public void addtocartclick(view view) { imageview img = (imageview) view; img.setimageresource(r.drawable.cart_add); } adapter code:
public class shoplistadapter extends arrayadapter<shoplistitem> { context context; int resource; shoplistitem[] objects; public shoplistadapter(context context, int resource, shoplistitem[] objects) { super(context, resource, objects); this.context = context; this.resource = resource; this.objects = objects; } @override public view getview(int position, view convertview, viewgroup parent) { if (convertview == null) { // inflate layout layoutinflater inflater = ((activity) context).getlayoutinflater(); convertview = inflater.inflate(resource, parent, false); } // object item based on position shoplistitem item = objects[position]; // textview , set text (item name) , tag (item id) values textview itemname = (textview) convertview.findviewbyid(r.id.itemname); itemname.settext(item.itemname); textview qty = (textview) convertview.findviewbyid(r.id.qty); qty.settext(item.quantity + "kg"); textview price = (textview) convertview.findviewbyid(r.id.price); price.settext("r$" + item.price); textview total = (textview) convertview.findviewbyid(r.id.total); total.settext("r$" + item.total); return convertview; } }
what missing?
take boolean in shoplistitem class -
public boolean isselected; and check in getview method , set image according boolean, when scroll list view image set particular imageview selected previously-
@override public view getview(int position, view convertview, viewgroup parent) { if (convertview == null) { // inflate layout layoutinflater inflater = ((activity) context).getlayoutinflater(); convertview = inflater.inflate(resource, parent, false); } // object item based on position shoplistitem item = objects[position]; // textview , set text (item name) , tag (item id) values textview itemname = (textview) convertview.findviewbyid(r.id.itemname); itemname.settext(item.itemname); textview qty = (textview) convertview.findviewbyid(r.id.qty); qty.settext(item.quantity + "kg"); textview price = (textview) convertview.findviewbyid(r.id.price); price.settext("r$" + item.price); textview total = (textview) convertview.findviewbyid(r.id.total); total.settext("r$" + item.total); imageview img = (imageview) view.findviewbyid(r.id.carticon); img.settag(position); if ( objects.isselected ){ img.setimageresource(r.drawable.cart_add); }else{ // can set default image here } } return convertview; } and add code-
public void addtocartclick(view view) { object.get( integer.parseint(view.gettag()) ).isselected = true; notifydatasetchanged(); } 
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