Custom dialog to take user log in credentials: Android tutorial

Program description:

This program will show how to create a custom dialog which contains 2 edit text boxes to take log in and pass word credentials from user.

First Activity

package com.techpalle.b15_dialogassign;

import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {
 Button b;
 EditText e1, e2;
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 b = (Button) findViewById(R.id.button1);
 e1 = (EditText) findViewById(R.id.editText1);
 e2 = (EditText) findViewById(R.id.editText2);
 b.setOnClickListener(new android.view.View.OnClickListener() {
 @Override
 public void onClick(View v) {
 // TODO Auto-generated method stub
 showDialog(1);
 }
 });
 }
 
 @Override
 protected Dialog onCreateDialog(int id) {
 Dialog d = null;
 switch(id){
 case 1:
 AlertDialog.Builder ab = new AlertDialog.Builder(this);
 ab.setTitle("Enter user credentials");
 ab.setView(getLayoutInflater().
 inflate(R.layout.dialog, null));
 ab.setPositiveButton("Done", new OnClickListener() {
 @Override
 public void onClick(DialogInterface dialog, int which) {
 Dialog d = (Dialog) dialog;
 EditText x = (EditText) d.findViewById(R.id.editText1);
 EditText y = (EditText) d.findViewById(R.id.editText2);
 e1.setText(x.getText().toString());
 e2.setText(y.getText().toString());
 }
 });
 d = ab.create();
 break;
 }
 return d;
 }

}

xml layout file for First Activity 

File name: activity_main.xml

  xmlns:tools="http://schemas.android.com/tools" 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:paddingBottom="@dimen/activity_vertical_margin" 
 android:paddingLeft="@dimen/activity_horizontal_margin" 
 android:paddingRight="@dimen/activity_horizontal_margin" 
 android:paddingTop="@dimen/activity_vertical_margin" 
 tools:context=".MainActivity" > 
  android:id="@+id/textView1" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:text="@string/hello_world" /> 
  android:id="@+id/editText1" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:layout_below="@+id/textView1" 
 android:layout_toRightOf="@+id/textView1" 
 android:ems="10" > 
  
  
  android:id="@+id/editText2" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:layout_alignParentRight="true" 
 android:layout_below="@+id/editText1" 
 android:ems="10" /> 
 

custom xml layout file for Dialog to show log in and password.

File name: dialog.xml

  
  android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:orientation="vertical" > 
  android:id="@+id/editText1" 
 android:layout_width="match_parent" 
 android:layout_height="wrap_content" 
 android:ems="10" > 
  
  
  android:id="@+id/editText2" 
 android:layout_width="match_parent" 
 android:layout_height="wrap_content" 
 android:ems="10" /> 
  

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Tags: android, tutorial, examples, Custom dialog, login dialog, user input dialog