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POlistview row in custom dialog invisible
 

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  1. POlistview row in custom dialog invisible
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    <p>I have a custom dialog with the format of Header + listview + footer. The corresponding code is as follows: (I don't mind to share the code but it is over 800 lines) ...</p> <pre><code> /* Setup dialog layout */ View header = (View)getLayoutInflater().inflate(R.layout.stockcountheader, null); View footer = (View)getLayoutInflater().inflate(R.layout.stockcountfooter, null); final Dialog listDialog; listDialog = new Dialog(this, android.R.style.Theme_Dialog); listDialog.requestWindowFeature(Window.FEATURE_NO_TITLE); LayoutInflater li = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = li.inflate(R.layout.dialog, null, false); listDialog.setContentView(v); listDialog.setCancelable(true); final AdditemAdapter adapter = new AdditemAdapter(this, R.layout.additemrow, updateitems); final ListView filterrow = (ListView) listDialog.findViewById(R.id.dialoglist); filterrow.addHeaderView(header); filterrow.addFooterView(footer); filterrow.setAdapter(adapter); i = adapter.getCount(); listDialog.show(); </code></pre> <p>In the header, I have a radiobutton and intend to control the visibility of the listview row. So, I have the following code: ...</p> <pre><code> radiostockresGroup = (RadioGroup)listDialog.findViewById(R.id.radiostockres); radiostockresButton = (RadioButton) radiostockresGroup.findViewById(radiostockresGroup.getCheckedRadioButtonId()); radiostockresGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { public void onCheckedChanged(RadioGroup radiostockresGroup, int checkedId) { radiostockresButton = (RadioButton) radiostockresGroup.findViewById(checkedId); switch(checkedId) { case R.id.radioresno: listDialog.findViewById(R.id.tblayout2).setVisibility(View.INVISIBLE); break; case R.id.radioresyes: listDialog.findViewById(R.layout.tblayout2).setVisibility(View.VISIBLE); break; } } }); </code></pre> <p>However, it give me the java null pointer error in the "listDialog.findViewById(R.id.tblayout2).setVisibility(View.INVISIBLE); " line. The xml for the listview and the dialog is as follows:</p> <p>stocktakerow.xml</p> <pre><code> &lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"&gt; &lt;TableLayout android:id="@+id/tblayout2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:shrinkColumns="0" android:stretchColumns="*"&gt; &lt;TableRow android:layout_width="fill_parent" android:layout_height="wrap_content"&gt; &lt;TextView android:id="@+id/txtfieldname" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_span="3" android:gravity="top" /&gt; &lt;EditText android:id="@+id/txtinput" android:layout_toRightOf="@+id/txtfieldname" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_span="3" android:gravity="top" /&gt; &lt;/TableRow&gt; &lt;/TableLayout&gt; &lt;/RelativeLayout&gt; </code></pre> <p>I try to use " filterrow.findViewById(R.id.tblayout2).setVisibility(View.INVISIBLE);" and still got the same null pointer.</p> <p>Please kindly give me a hand, thanks a lot in advance!</p> <p>Kelvin</p>
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      1. POlistview row in custom dialog invisible
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    1. COIt is a duplicate to this: http://stackoverflow.com/questions/10444924/setvisitility-item-in-custom-listview
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