Android Password Field

In Android, you can use “android.widget.EditText“, with inputType="textPassword" for password component.

In this tutorial, we show you how to use XML to create a password field. When you click on the button, the password value will be displayed as a message (toast message).

2. Password

Open “res/layout/activity_main.xml” file, add a password component.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity"

android:orientation="vertical" >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Password"

android:textAppearance="?android:attr/textAppearanceLarge" />

<EditText

android:id="@+id/editPassword"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:inputType="textPassword" >

<requestFocus />

</EditText>

<Button

android:id="@+id/btnDisplayPass"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Display Password" />

</LinearLayout>

3. Code

Inside activity "onCreate" method, attach a click listener on button, to display the password value.

package com.learnsimply.edittextpassword;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

public class MainActivity extends Activity {

EditText edPass;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

edPass = (EditText)findViewById(R.id.editPassword);

Button btnDisplay = (Button)findViewById(R.id.btnDisplayPass);

btnDisplay.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

Toast.makeText(MainActivity.this, edPass.getText().toString(), Toast.LENGTH_SHORT).show();

}

});

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.activity_main, menu);

return true;

}

}

Run the application

Download Source Code Android Password Example.zip