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POsetText() of TextView in list_row.xml
 

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  1. POsetText() of TextView in list_row.xml
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    <p>I have:</p> <ol> <li>One <code>MyListActivity class extends ListActivity</code> <code>setContentView(R.layout.mylist)</code>;</li> <li>Two xml files: <code>mylist.xml</code> and <code>list_row.xml</code>. </li> <li><code>mylist.xml</code> is the layout and <code>list_row.xml</code> is how each row looks like. </li> <li><code>list_row.xml</code> contains 3 <code>TextViews(t1,t2,t3)</code>. </li> </ol> <p>I want to change some text of t2 in <code>MyListActivity</code> class. Because the content view is mylist.xml so I can't simply use <code>findViewById</code>. So I used <code>LayoutInflater</code>.</p> <pre><code> LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE); View v = inflater.inflate(R.layout.list_row, null); textView2 = (TextView) v.findViewById(R.id.t2); textView2.setText("ccccc"); </code></pre> <p>The problem is that the text of t2 is never changed. I have tried many times and the text remains the text I set in the <code>list_row.xml</code>. I can't figure out why.. Could someone help please. Thanks!</p> <p>=====<strong>Solution</strong>:=====</p> <p>Create my own <code>SimpleCursorAdapter</code> class and override the <code>getView()</code> method.</p> <pre><code>private class MySimpleCursorAdapter extends SimpleCursorAdapter { Cursor c; public MySimpleCursorAdapter(Context context, int layout, Cursor c, String[] from, int[] to) { super(context, layout, c, from, to); this.c = c; } @Override public View getView(int position, View convertView, ViewGroup parent) { super.getView(position, convertView, parent); LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE); View rowView = inflater.inflate(R.layout.list_row, parent, false); TextView textview1 = (TextView) rowView.findViewById(R.id.text1); textView1.setText(c.getString(1));// whatever should be in textView1 textView2 = (TextView) rowView.findViewById(R.id.text2); textView2.setText("ccccc"); return rowView; } } </code></pre> <p>The <code>super.getView(position, convertView, parent);</code> is quite important because if I don't have that line, <code>textView1</code> will always show the value of first row(e.g. if <code>textView1</code> shows the id, then this is always 1). </p>
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