android - ListView setOnItemClickListener Does Not Trigger -

click listener not working when click item.

in program first 2 arraylist updated using update(). list view sent other class make list view. clicking each item doesn't toast anything.

public class blockactivity extends activity { listview lv; arraylist<string> contactnumber= new arraylist<string>(); arraylist<string> contactname= new arraylist<string>(); public static sqlitedatabase database; sqlitedatabase mydb= null; customadapter adapter;  arraylist<string> contactnum= new arraylist<string>(); arraylist<string> contactnam= new arraylist<string>();  public void oncreate(bundle savedinstancestate)  {     super.oncreate(savedinstancestate);     setcontentview(r.layout.main);     button pickcontact = (button) findviewbyid(r.id.button1);           update();        lv=(listview) findviewbyid(r.id.listview1);      adapter = new customadapter(this, contactnam, contactnum);   lv.setadapter(adapter);     lv.setonitemclicklistener(new onitemclicklistener() {       @override       public void onitemclick(adapterview<?> parent, view view,           int position, long id)        {             /*new alertdialog.builder(view.getcontext())               .setmessage("something here")               .setnegativebutton("close", null).show();*/          toast.maketext(blockactivity.this,                    "item in position " + position + " clicked",    toast.length_long).show();        }     });   pickcontact.setonclicklistener(new onclicklistener() { . . . 

main.xml:

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" >  <button     android:id="@+id/button1"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:text="add" />  <listview     android:id="@+id/listview1"     android:layout_width="match_parent"     android:layout_height="wrap_content" > </listview> 

detail.xml:

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" android:focusableintouchmode="false" android:focusable="false">   <linearlayout     android:layout_width="match_parent"     android:layout_height="50dip"     android:layout_weight="1" android:focusable="false" android:focusableintouchmode="false">     <button android:id="@+id/button2" android:layout_width="0dp" android:layout_height="wrap_content" android:text="button"/>      <textview         android:id="@+id/one"         android:layout_width="0dip"         android:layout_height="wrap_content"         android:layout_weight="1"         android:gravity="center"         android:text="name"         android:textsize="20dip" android:layout_gravity="center" android:focusable="false" android:focusableintouchmode="false"/>      <textview         android:id="@+id/two"         android:layout_width="0dip"         android:layout_height="wrap_content"         android:layout_weight="1"         android:gravity="center"         android:text="name"         android:textsize="20dip" android:layout_gravity="center" android:focusable="false" android:focusableintouchmode="false"/> </linearlayout>  <button     android:id="@+id/button1"     android:layout_width="fill_parent"     android:layout_height="2dip" android:background="#ff7f7f"/> 

thats because of button, add android:descendantfocusability="blocksdescendants" in list item root layout

detail.xml:

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" android:descendantfocusability="blocksdescendants" >   <linearlayout     android:layout_width="match_parent"     android:layout_height="50dip"     android:layout_weight="1" android:focusable="false" android:focusableintouchmode="false">     <button android:id="@+id/button2" android:layout_width="0dp" android:layout_height="wrap_content" android:text="button"/>      <textview         android:id="@+id/one"         android:layout_width="0dip"         android:layout_height="wrap_content"         android:layout_weight="1"         android:gravity="center"         android:text="name"         android:textsize="20dip" android:layout_gravity="center"/>      <textview         android:id="@+id/two"         android:layout_width="0dip"         android:layout_height="wrap_content"         android:layout_weight="1"         android:gravity="center"         android:text="name"         android:textsize="20dip" android:layout_gravity="center"/> </linearlayout>  <button     android:id="@+id/button1"     android:layout_width="fill_parent"     android:layout_height="2dip" android:background="#ff7f7f"/>