android - How to know the View Elements after loading a layout? -

i trying write code , after loading layout , want know view elements related layout textview, edittext , checkbox etc.

mycode :

mainactivity.java

package com.example.myview;  import android.os.bundle; import android.support.v4.app.fragment; import android.support.v4.app.fragmenttransaction; import android.support.v7.app.actionbaractivity; import android.util.log; import android.view.layoutinflater; import android.view.view;   public class mainactivity extends actionbaractivity {  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);       view view = layoutinflater.from(this).inflate(r.layout.demo_layout, null);     // how know ui elements related layout //      }   } 

demo_layout.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:id="@+id/lnr"                android:layout_width="match_parent"            android:layout_height="match_parent"            android:background="#ddccee"            android:orientation="vertical">          <textview              android:id="@+id/txt1"             android:layout_width="match_parent"             android:layout_height="300dp"             android:textsize="15dp"             android:textcolor="#ffffff"             android:text="test layout"             android:layout_gravity="center"             android:gravity="center"/>          <edittext              android:id="@+id/edit1"             android:layout_width="match_parent"             android:layout_height="300dp"             android:textsize="15dp"             android:textcolor="#ffffff"             android:text="test layout"             android:layout_gravity="center"             android:gravity="center"/>           <textview              android:id="@+id/txt2"             android:layout_width="match_parent"             android:layout_height="300dp"             android:textsize="15dp"             android:textcolor="#ffffff"             android:text="test layout"             android:layout_gravity="center"             android:gravity="center"/>   </linearlayout> 

this layout has textview , edittext , , want know how ui elements related layout programmatically.

so , please suggest me solution.

you can use getchildcount ref count of views added toviewgroup , use getchildat ref view @ given index.

you using linearlayout base layout extends viewgroup change below line.

    linearlayout view = (linearlayout)layoutinflater.from(this).inflate(r.layout.demo_layout, null);