How to add EditText to an AlertDialog in Android

activity_main.xml 
 <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="10dp"     tools:context=".MainActivity"     android:background="#c9d3ff"     >     <Button         android:id="@+id/btn"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="Say Hello"         />     <TextView         android:id="@+id/tv_message"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:textSize="50dp"         android:textColor="#597aff"         android:layout_below="@id/btn"         /> </RelativeLayout>
alertdialog_custom_view.xml 
 <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/dialog_rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="10dp"     tools:context=".MainActivity"     android:background="#e9f1ba"     >     <TextView         android:id="@+id/dialog_title"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:text="Confirmation."         android:padding="5dp"         android:background="#d5dda6"         android:textSize="15dp"         />     <EditText         android:id="@+id/et_name"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:hint="Input your name."         android:textSize="15dp"         android:layout_below="@id/dialog_title"         />     <Button         android:id="@+id/dialog_positive_btn"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="OK"         android:layout_alignParentRight="true"         android:background="#dde5ad"         android:layout_below="@id/et_name"         />     <Button         android:id="@+id/dialog_negative_btn"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="No"         android:layout_toLeftOf="@id/dialog_positive_btn"         android:background="#dde5ad"         android:layout_marginRight="3dp"         android:layout_alignBaseline="@id/dialog_positive_btn"         /> </RelativeLayout>
MainActivity.java 
 package com.cfsuman.me.androidcodesnippets;  import android.app.AlertDialog; import android.os.Bundle; import android.app.Activity; import android.view.View; import android.widget.Button; import android.widget.RelativeLayout; import android.widget.TextView; import android.widget.Toast; import android.view.LayoutInflater; import android.widget.EditText;   public class MainActivity extends Activity {      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          // Get reference of widgets from XML layout         simpulan RelativeLayout rl = (RelativeLayout) findViewById(R.id.rl);         simpulan TextView tv_message = (TextView) findViewById(R.id.tv_message);         Button btn = (Button) findViewById(R.id.btn);          btn.setOnClickListener(new View.OnClickListener() {             @Override             public void onClick(View v) {                 // Build an AlertDialog                 AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);                  LayoutInflater inflater = getLayoutInflater();                 View dialogView = inflater.inflate(R.layout.alertdialog_custom_view,null);                  // Specify alert dialog is not cancelable/not ignorable                 builder.setCancelable(false);                  // Set the custom layout as alert dialog view                 builder.setView(dialogView);                  // Get the custom alert dialog view widgets reference                 Button btn_positive = (Button) dialogView.findViewById(R.id.dialog_positive_btn);                 Button btn_negative = (Button) dialogView.findViewById(R.id.dialog_negative_btn);                 simpulan EditText et_name = (EditText) dialogView.findViewById(R.id.et_name);                  // Create the alert dialog                 simpulan AlertDialog dialog = builder.create();                  // Set positive/yes button click listener                 btn_positive.setOnClickListener(new View.OnClickListener() {                     @Override                     public void onClick(View v) {                         // Dismiss the alert dialog                         dialog.cancel();                         String name = et_name.getText().toString();                         Toast.makeText(getApplication(),                                 "Submitted name : " + name, Toast.LENGTH_SHORT).show();                         // Say hello to the submitter                         tv_message.setText("Hello " + name + "!");                     }                 });                  // Set negative/no button click listener                 btn_negative.setOnClickListener(new View.OnClickListener() {                     @Override                     public void onClick(View v) {                         // Dismiss/cancel the alert dialog                         //dialog.cancel();                         dialog.dismiss();                         Toast.makeText(getApplication(),                                 "No button clicked", Toast.LENGTH_SHORT).show();                     }                 });                  // Display the custom alert dialog on interface                 dialog.show();             }         });   } }



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