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POAndroid. Scrolling 2 listviews together
 

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    <p>OK. What I'm trying to achieve is a layout that does the same effect as frozen panes in Excel. That is I want a header row that scrolls horizontally with the main ListView and a left hand ListView that scrolls vertically with the main ListView. The header row and the left hand listview should remain stationary when scrolling in the other dimension.</p> <p>Here is the xml layout:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/recordViewLayout" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal"&gt; &lt;LinearLayout android:layout_width="160dp" android:layout_height="match_parent" android:orientation="vertical"&gt; &lt;CheckBox android:id="@+id/checkBoxTop" android:text="Check All" android:layout_width="wrap_content" android:layout_height="wrap_content" /&gt; &lt;ListView android:id="@+id/engNameList" android:layout_width="160dp" android:layout_height="wrap_content"/&gt; &lt;/LinearLayout&gt; &lt;HorizontalScrollView android:layout_width="match_parent" android:layout_height="wrap_content"&gt; &lt;LinearLayout android:id="@+id/scroll" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical"&gt; &lt;include layout="@layout/record_view_line" android:id="@+id/titleLine" /&gt; &lt;ListView android:id="@android:id/list" android:layout_height="wrap_content" android:layout_width="match_parent"/&gt; &lt;/LinearLayout&gt; &lt;/HorizontalScrollView&gt; &lt;/LinearLayout&gt; </code></pre> <p>I'm then using this code in the ListActivity</p> <pre><code>public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { View v = recordsListView.getChildAt(0); int top = (v == null) ? 0 : v.getTop(); ((ListView)findViewById(R.id.engNameList)).setSelectionFromTop(firstVisibleItem, top); } </code></pre> <p>This should cause the left hand ListView to scroll when the right hand one is scrolled by the user. Unfortunately it doesn't.</p> <p>I've had a bit of a google about and it seems the setSelectionFromTop() function will not work on a ListView that is nested inside more than one layout.</p> <p>If this is the case can anyone suggest a way to get them to scroll together or a different way to set up the layout or a different technique altogether.</p>
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    1. COHave you tried smootHSCrollToPosition: http://developer.android.com/reference/android/widget/ListView.html#smoothScrollToPosition(int)
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    2. COThanks for the quick reply. However this isn't the solution. I am looking to get the listviews to scroll smoothly together.
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