android - Add click listener to Buttons in ListView -
beginner here. using cursoradapter , listview. have 2 buttons per row(item?). add click listener them such can hide/show textviews same row.
here adapter:
public class todocursoradapter extends cursoradapter { public todocursoradapter(context context, cursor cursor) { super(context, cursor, 0); } // newview method used inflate new view , return it, // don't bind data view @ point. @override public view newview(context context, cursor cursor, viewgroup parent) { return layoutinflater.from(context).inflate(r.layout.listview, parent, false); } @override public void bindview(view view, context context, cursor cursor) { textview engtext = (textview) view.findviewbyid(r.id.engtext); textview arabtext = (textview) view.findviewbyid(r.id.arabtext); textview reftext = (textview) view.findviewbyid(r.id.reftext); string arabic = cursor.getstring(cursor.getcolumnindexorthrow("plainarab_text")); string english = cursor.getstring(cursor.getcolumnindexorthrow("plaineng_text")); string ref = cursor.getstring(cursor.getcolumnindexorthrow("ref")); arabtext.settext(arabic); engtext.settext(english); reftext.settext(ref); } } adapter xml:
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <linearlayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <button android:id="@+id/button" android:layout_width="0sp" android:layout_weight="0.5" android:layout_height="wrap_content" android:text="left button" /> <button android:id="@+id/button2" android:layout_width="0sp" android:layout_weight="0.5" android:layout_height="wrap_content" android:text="right button" /> </linearlayout> <textview android:id="@+id/engtext" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginstart="10sp" android:textsize="15sp" android:typeface="serif"/> <textview android:id="@+id/arabtext" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginstart="10sp" android:textsize="15sp" android:typeface="sans" /> <textview android:id="@+id/reftext" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginstart="10sp" android:textsize="15sp" /> </linearlayout> activity code:
public class listviewactivity extends activity { listview listview ; private sqlitedatabase hadlistdb; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_listview); databasehelper1 hadlistdbhelper; hadlistdbhelper = new databasehelper1(this); try { hadlistdbhelper.createdatabase(); } catch (ioexception ioe) { throw new error("unable create database"); } hadlistdb = hadlistdbhelper.opendatabase(); cursor todocursor = hadlistdb.rawquery("select id _id, * had_table id < 5 ", null); // find listview populate listview lvitems = (listview) findviewbyid(r.id.list); // setup cursor adapter using cursor last step todocursoradapter todoadapter = new todocursoradapter(this, todocursor); // attach cursor adapter listview lvitems.setadapter(todoadapter); todoadapter.changecursor(todocursor); } } activity xml:
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <linearlayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <button android:id="@+id/button3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:text="top1" /> <button android:id="@+id/button4" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:text="top2" /> </linearlayout> <listview android:id="@+id/list" android:layout_width="match_parent" android:layout_height="wrap_content"> </listview> </linearlayout> how add listeners buttons in adapter xml?
create button object on bindview method have overridden on todocursoradapter class use findviewbyid use the rest of text view initialize object, after need add onclicklistner have intended on code (ie. hiding textview)
public class todocursoradapter extends cursoradapter { public todocursoradapter(context context, cursor cursor) { super(context, cursor, 0); } // newview method used inflate new view , return it, // don't bind data view @ point. @override public view newview(context context, cursor cursor, viewgroup parent) { return layoutinflater.from(context).inflate(r.layout.listview, parent, false); } @override public void bindview(view view, context context, cursor cursor) { textview engtext = (textview) view.findviewbyid(r.id.engtext); textview arabtext = (textview) view.findviewbyid(r.id.arabtext); textview reftext = (textview) view.findviewbyid(r.id.reftext); textview reftext = (textview) view.findviewbyid(r.id.reftext); button button = (button) view.findviewbyid(r.id.button); button button2 = (button) view.findviewbyid(r.id.button2); string arabic = cursor.getstring(cursor.getcolumnindexorthrow("plainarab_text")); string english = cursor.getstring(cursor.getcolumnindexorthrow("plaineng_text")); string ref = cursor.getstring(cursor.getcolumnindexorthrow("ref")); arabtext.settext(arabic); engtext.settext(english); reftext.settext(ref); //updated arabtext.setvisibility(view.visible); engtext.setvisibility(view.visible); button.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v){ arabtext.setvisibility(view.gone); } }); button2.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v){ engtext.setvisibility(view.gone); } }); } } 
Comments
Post a Comment