listview into scrollview

-Fix listview item height with General.setListViewHeightBasedOnChildren -Scrollview can grow with fillViewport -Scroll to Top

WARNING the listview_item.xml (filled on adapter) MUST contains LinearLayouts non Relatives. On old devices users got

java.lang.NullPointerException at android.widget.RelativeLayout.onMeasure(RelativeLayout.java)

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//source - http://stackoverflow.com/a/8406253/1320686
<scrollview android:id="@+id/product_detail_scrollView" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/product_details" android:fillviewport="true">

        <relativelayout android:layout_width="wrap_content" android:layout_height="wrap_content">
.
.
		<listview android:id="@+id/product_detail_lstv" android:layout_width="match_parent" android:layout_height="wrap_content" android:focusable="false" android:layout_below="@+id/x" android:layout_marginbottom="2dip" android:divider="#c4cacb" android:dividerheight="2dp"></listview>
	</relativelayout>
</scrollview>

```js …fill listview . .. } finally { lstv_adapter.notifyDataSetChanged();

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//scroll to top
((ScrollView) findViewById(R.id.product_detail_scrollView)).smoothScrollTo(0,0);

//fix listview height
General.setListViewHeightBasedOnChildren(lstv); }

public final class General {

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public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter(); 
    if (listAdapter == null) {
        // pre-condition
        return;
    }

    int totalHeight = 0;
    for (int i = 0; i < listadapter.getcount(); i++) {
        view listitem = listadapter.getview(i, null, listview);
        listitem.measure(0, 0);
        totalheight += listitem.getmeasuredheight();
    }

    viewgroup.layoutparams params = listview.getlayoutparams();
    params.height = totalheight + (listview.getdividerheight() * (listadapter.getcount() - 1));
    listview.setlayoutparams(params);
    listview.requestlayout();
}      }

``` listadapter.getcount();=”” i++)=”” {=”” view=”” listitem=”listAdapter.getView(i,” null,=”” listview);=”” listitem.measure(0,=”” 0);=”” totalheight=”” +=”listItem.getMeasuredHeight();” }=”” viewgroup.layoutparams=”” params=”listView.getLayoutParams();” params.height=”totalHeight” +=”” (listview.getdividerheight()=”” *=”” (listadapter.getcount()=”” -=”” 1));=”” listview.setlayoutparams(params);=”” listview.requestlayout();=”” }=”” }=””></ listadapter.getcount(); i++) { view listitem = listadapter.getview(i, null, listview); listitem.measure(0, 0); totalheight += listitem.getmeasuredheight(); }

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    viewgroup.layoutparams params = listview.getlayoutparams();
    params.height = totalheight + (listview.getdividerheight() * (listadapter.getcount() - 1));
    listview.setlayoutparams(params);
    listview.requestlayout();
}      }

```>

origin - http://www.pipiscrew.com/?p=4392 android-listview-into-scrollview