hi,Jeruliu:
I need not that how to handle the item, in my code, I wrote it , I want
to know is that how to handle the button in the item.
but still thank you!
2010/7/12 Jeruliu <[email protected]>
> Please find my working code snippet below:
>
> // get a reference to the ListView
> listView = (ListView) findViewById(android.R.id.list);
> ...
> // single click event
> listView.setOnItemClickListener(new OnItemClickListener() {
> public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
> long arg3) {
>
> My list view works with the customized adapter.
>
> On Jul 11, 9:18 pm, 苗忠良 <[email protected]> wrote:
> > hi,all:
> >
> > I write a listactivty,the item including a textview and a button，the
> data
> > came from a sqlite。but in handling the clickevent , i meet some problem,
> in
> > the CursorAdapter's bindView() function，i cann't get the current
> position。in
> > log，i find position of Cursor is the position I last click the item of
> > listview.
> > the code as follows:
> > package miaozl.hello;
> >
> > import android.app.ListActivity;
> > import android.content.Context;
> > import android.database.Cursor;
> > import android.os.Bundle;
> > import android.util.Log;
> > import android.view.LayoutInflater;
> > import android.view.View;
> > import android.view.ViewGroup;
> > import android.view.View.OnClickListener;
> > import android.widget.AdapterView;
> > import android.widget.Button;
> > import android.widget.CursorAdapter;
> > import android.widget.ImageButton;
> > import android.widget.ListView;
> > import android.widget.SimpleCursorAdapter;
> > import android.widget.TextView;
> >
> > public class helloActivity extends ListActivity{
> > private helloAdapter mDbHelper;
> > private final static String TAG ="helloActivity";
> > private static LayoutInflater mFactory;
> > ListView lv;
> > /** Called when the activity is first created. */
> > @Override
> > public void onCreate(Bundle savedInstanceState) {
> > super.onCreate(savedInstanceState);
> > mDbHelper = new helloAdapter(this);
> > mDbHelper.open();
> > mFactory = LayoutInflater.from(this);
> > lv= getListView();
> > lv.setChoiceMode(1);
> > lv.setOnItemClickListener(new AdapterView.OnItemClickListener(){
> >
> > @Override
> > public void onItemClick(AdapterView<?> arg0, View arg1, int
> > arg2,
> > long arg3) {
> > // TODO Auto-generated method stub
> > Log.d(TAG,"====onItemClick===arg3 is ==="+arg3);
> > }
> >
> > });
> > fillData();
> > }
> > private void fillData() {
> > // TODO Auto-generated method stub
> > Cursor c = mDbHelper.fetchAllNotes();
> > startManagingCursor(c);
> >
> > String[] from = new String[] {
> > helloAdapter.KEY_WORD,helloAdapter.KEY_ID};
> > int[] to = new int[] { R.id.word,R.id.button};
> > lv.setAdapter(new ListAdapter(this, c));
> > }
> > private static class ListAdapter extends CursorAdapter {
> >
> > public ListAdapter(Context context, Cursor c) {
> > super(context, c);
> > // TODO Auto-generated constructor stub
> > }
> >
> > @Override
> > public void bindView(View view, Context context, final Cursor
> > cursor) {
> > // TODO Auto-generated method stub
> > Button onButton=(Button)view.findViewById(R.id.button);
> > onButton.setOnClickListener(new OnClickListener(){
> >
> > @Override
> > public void onClick(View arg0) {
> > // TODO Auto-generated method stub
> > Log.d(TAG,
> > "=cursor.getPosition()="+cursor.getPosition());
> > }
> > });
> >
> > }
> >
> > @Override
> > public View newView(Context context, Cursor cursor, ViewGroup
> > parent) {
> > // TODO Auto-generated method stub
> > View ret= mFactory.inflate(R.layout.list_item,parent,false);
> > TextView word=(TextView)ret.findViewById(R.id.word);
> > Button onButton=(Button)ret.findViewById(R.id.button);
> > onButton.setFocusable(false);
> >
> >
> word.setText(cursor.getString(cursor.getColumnIndex(helloAdapter.KEY_WORD)));
> > onButton.setBackgroundResource(R.drawable.icon);
> > return ret;
> > }
> >
> > }
> >
> > }
> >
> > the ListAdapter as fallows:
> >
> > package miaozl.hello;
> >
> > import android.content.ContentValues;
> > import android.content.Context;
> > import android.database.Cursor;
> > import android.database.SQLException;
> > import android.database.sqlite.SQLiteDatabase;
> > import android.database.sqlite.SQLiteOpenHelper;
> > import android.util.Log;
> >
> > public class helloAdapter{
> > public static final String KEY_WORD = "word";
> > public static final String KEY_ID = "_id";
> > private static final String TAG = "helloAdapter";
> > private DatabaseHelper mDbHelper;
> > private SQLiteDatabase mDb;
> >
> > private static final String DATABASE_CREATE =
> > "create table notes (_id integer primary key autoincrement, "
> > + "word text not null);";
> > private static final String DATABASE_NAME = "list";
> > private static final String DATABASE_TABLE = "notes";
> > private static final int DATABASE_VERSION = 1;
> > private final Context mCtx;
> > private static class DatabaseHelper extends SQLiteOpenHelper {
> >
> > DatabaseHelper(Context context) {
> > super(context, DATABASE_NAME, null, DATABASE_VERSION);
> > }
> >
> > @Override
> > public void onCreate(SQLiteDatabase db) {
> >
> > db.execSQL(DATABASE_CREATE);
> > }
> >
> > @Override
> > public void onUpgrade(SQLiteDatabase db, int oldVersion, int
> > newVersion) {
> > Log.w(TAG, "Upgrading database from version " + oldVersion +
> "
> > to "
> > + newVersion + ", which will destroy all old data");
> > db.execSQL("DROP TABLE IF EXISTS notes");
> > onCreate(db);
> > }
> > }
> >
> > /**
> > * Constructor - takes the context to allow the database to be
> > * opened/created
> > *
> > * @param ctx the Context within which to work
> > */
> > public helloAdapter(Context ctx) {
> > this.mCtx = ctx;
> > }
> >
> > /**
> > * Open the notes database. If it cannot be opened, try to create a
> new
> > * instance of the database. If it cannot be created, throw an
> exception
> > to
> > * signal the failure
> > *
> > * @return this (self reference, allowing this to be chained in an
> > * initialization call)
> > * @throws SQLException if the database could be neither opened or
> > created
> > */
> > public helloAdapter open() throws SQLException {
> > mDbHelper = new DatabaseHelper(mCtx);
> > mDb = mDbHelper.getWritableDatabase();
> > return this;
> > }
> >
> > public void close() {
> > mDbHelper.close();
> > }
> >
> > /**
> > * Create a new note using the title and body provided. If the note
> is
> > * successfully created return the new rowId for that note, otherwise
> > return
> > * a -1 to indicate failure.
> > *
> > * @param title the title of the note
> > * @param body the body of the note
> > * @return rowId or -1 if failed
> > */
> > public long createNote(String word) {
> > ContentValues initialValues = new ContentValues();
> > initialValues.put(KEY_WORD, word);
> >
> > return mDb.insert(DATABASE_TABLE, null, initialValues);
> > }
> >
> > /**
> > * Delete the note with the given rowId
> > *
> > * @param rowId id of note to delete
> > * @return true if deleted, false otherwise
> > */
> > public boolean deleteNote(long rowId) {
> >
> > return mDb.delete(DATABASE_TABLE, KEY_ID + "=" + rowId, null) >
> 0;
> > }
> >
> > /**
> > * Return a Cursor over the list of all notes in the database
> > *
> > * @return Cursor over all notes
> > */
> > public Cursor fetchAllNotes() {
> >
> > return mDb.query(DATABASE_TABLE, new String[] {KEY_ID, KEY_WORD
> > }, null, null, null, null, null);
> > }
> >
> > /**
> > * Return a Cursor positioned at the note that matches the given
> rowId
> > *
> > * @param rowId id of note to retrieve
> > * @return Cursor positioned to matching note, if found
> > * @throws SQLException if note could not be found/retrieved
> > */
> > public Cursor fetchNote(long rowId) throws SQLException {
> >
> > Cursor mCursor =
> >
> > mDb.query(true, DATABASE_TABLE, new String[] {KEY_ID,
> > KEY_WORD}, KEY_ID + "=" + rowId, null,
> > null, null, null, null);
> > if (mCursor != null) {
> > mCursor.moveToFirst();
> > }
> > return mCursor;
> >
> > }
> >
> > /**
> > * Update the note using the details provided. The note to be updated
> is
> > * specified using the rowId, and it is altered to use the title and
> > body
> > * values passed in
> > *
> > * @param rowId id of note to update
> > * @param title value to set note title to
> > * @param body value to set note body to
> > * @return true if the note was successfully updated, false otherwise
> > */
> > public boolean updateNote(long rowId,String word) {
> > ContentValues args = new ContentValues();
> > args.put(KEY_WORD, word);
> >
> > return mDb.update(DATABASE_TABLE, args, KEY_ID + "=" + rowId,
> null)
> >
> > > 0;
> > }
> > }
> >
> > list_item.xml as follows:
> >
> > <?xml version="1.0" encoding="utf-8"?>
> > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android";
> > android:orientation="horizontal"
> > android:layout_width="wrap_content"
> > android:layout_height="wrap_content">
> > <TextView android:id="@+id/word"
> > android:layout_width="250dip"
> > android:layout_height="wrap_content"/>
> > <Button android:id ="@+id/button"
> > android:layout_width ="50dip"
> > android:layout_height ="wrap_content"/>
> > </LinearLayout>
> >
> > pls help me 。/*******************************************/
> > 苗忠良(Miao Zhong-liang)
> > MSN:[email protected] <msn%[email protected]>
> > <msn%[email protected]<msn%[email protected]>
> >
> > BLOG:http://miaozl.spaces.live.com
> > /*******************************************/
>
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--
/*******************************************/
苗忠良(Miao Zhong-liang)
MSN:[email protected] <msn%[email protected]>
BLOG:http://miaozl.spaces.live.com
/*******************************************/
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