<<Unfortunately, this is not a complete worked out example. Could someone forward me a more complete example? I've found lots of code fragments, but no code that shows how to initialise the SimpleCursorAdapter contents, or how it works together with the AutoCompleteTextView. >>
<There is also an example in the APi demos with the contacts.~/android-sdk-windows-1.1_r1/samples/ApiDemos/src/com/example/android/apis/view/AutoComplete4.java> Many thanks. That was very helpful. I still have a question. I have now progressed to the point where list of entries is being displayed on the auto-complete box. However, when I try to narrow down the displayed choice by typing text into the auto-complete text box, the displayed list remains the same. For example, if the list initially contains “aaaa1”, “aaaa2”, “aabb1”, “aabb2”, and “aacc1” and “aacc2”, then when I type in “aab”, I expect to see only “aabb1” and “aabb2”. Instead all entries are still displayed. I found this very helpful message explaining that the problem is that SimpleCursorAdapter does not implement filtering: http://www.mail-archive.com/android-developers@googlegroups.com/msg00546.html The runQuery() method of the FilterQueryProvider class has to be defined to allow the class to filter what is displayed on the screen. @Override protected void onCreate(Bundle icicle) { super.onCreate(icicle); m_adapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_1, m_cursor, PROJECTION, new int[] { android.R.id.text1 }, CONTENT_URI, DEFAULT_SORT_ORDER); m_adapter.setFilterQueryProvider(new SimpleCursorAdapater.FilterQueryProvider() { @Override protected Cursor runQuery(CharSequence constraint) { StringBuilder buffer = null; String[] args = null; if (constraint != null) { buffer = new StringBuilder(); buffer.append("UPPER("); buffer.append(m_projection[0]); buffer.append(") GLOB ?"); String filter = constraint.toString().toUpperCase() + "*"; if (m_filterMode == FILTERMODE_CONTAINS) { filter = "*" + filter; } args = new String[] { filter }; } return m_contentResolver.query(CONTENT_URI, PROJECTION, buffer == null ? null : buffer.toString(), args, m_sortOrder); } m_box = (AutoCompleteTextView) findViewById(R.id.autocomplete); m_box.setAdapter(m_adapter); There are two problems: 1. I’m using the v1.1 DSK, and the constructor for SimpleCursorAdapter is defined as follows: SimpleCursorAdapter<http://developer.android.com/reference/android/widget/SimpleCursorAdapter.html#SimpleCursorAdapter%28android.content.Context,%20int,%20android.database.Cursor,%20java.lang.String%5B%5D,%20int%5B%5D%29> (Context<http://developer.android.com/reference/android/content/Context.html>context, int layout, Cursor<http://developer.android.com/reference/android/database/Cursor.html>c, String[] <http://developer.android.com/reference/java/lang/String.html>from, int[] to); The parameters CONTENT_URI and DEFAULT_SORT_ORDER are not defined for this constructor. 2. Where is the CONTENT_URI obtained from? In my case, the SQLiteDatabase that the cursor argument refers to, was filled by reading in the contents of a text file. Many thanks, Paul 2009/4/8 Paul Moore <polom...@gmail.com> > Hello, > > I have an application that involves reading a text dictionary file with > about 7000 entries, and allowing the user to choose one of these. My first > approach was to allow the user to select one of these by using a > AutoCompleteTextView together with ArrayAdapter<String>. This works, but is > very slow (~10 seconds to update the word list each time the user enters a > character to narrow down the choice). > > I was wondering how to rework it so that I could use a database using a > SimpleCursorAdapter instead. In other words, to hope that a SQL database > could provide a more efficient ordering and access for the elements. > Is this the best way to do it? I've also seen several references to > SQLiteDatabase, but don't know which one to use. > > I found this code fragmant consisting of an extended SimpleAdapter. > http://sacoskun.blogspot.com/2008/08...leadapter.html<http://sacoskun.blogspot.com/2008/08/autocompletetextview-with-simpleadapter.html> > > Unfortunately, this is not a complete worked out example. Could someone > forward me a more complete example? I've found lots of code fragments, but > no code that shows how to initialise the SimpleCursorAdapter contents, or > how it works together with the AutoCompleteTextView. > > Many thanks, > Paul --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
