In Android, you can use “android.widget.EditText“, with inputType="textPassword" to render a password component.
In this tutorial, we show you how to use XML to create a password field, label field and a normal button. When you click on the button, the password value will be displayed as a floating message (toast message).
P.S This project is developed in Eclipse 3.7, and tested with Android 2.3.3.
1. Custom String
Open “res/values/strings.xml” file, add some custom string for demonstration.
File : res/values/strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">MyAndroidApp</string>
<string name="lblPassword">Enter Your Password :</string>
<string name="btn_submit">Submit</string>
</resources>
2. Password
Open “res/layout/main.xml” file, add a password component, EditText + inputType="textPassword".
File : res/layout/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" >
<TextView
android:id="@+id/lblPassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/lblPassword"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="@+id/txtPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPassword" >
<requestFocus />
</EditText>
<Button
android:id="@+id/btnSubmit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn_submit" />
</LinearLayout>
3. Code Code
Inside activity “onCreate()” method, attach a click listener on button, to display the password value.
File : MyAndroidAppActivity.java
package com.mkyong.android;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MyAndroidAppActivity extends Activity {
private EditText password;
private Button btnSubmit;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
addListenerOnButton();
}
public void addListenerOnButton() {
password = (EditText) findViewById(R.id.txtPassword);
btnSubmit = (Button) findViewById(R.id.btnSubmit);
btnSubmit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MyAndroidAppActivity.this, password.getText(),
Toast.LENGTH_SHORT).show();
}
});
}
}
4. Demo
Run the application.
1. Result, password field is displayed.
2. Type password “mkyong123” and click on the submit button.
This is awesome
Kindly Include “import yourpackagename.R;”
in source Java File
in this example I want to display password in next activity page. how to do that please somebody help me out.
how to execute it there is no exe file
input type = text password does not let to change language, how to make it to let choice? sorry for my english
package org.example.webviewdemo; import android.app.Activity; import android.os.Bundle; import android.view.KeyEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnKeyListener; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.Button; import android.widget.EditText; public class WebViewDemo extends Activity { private WebView webView; private EditText urlField; private Button goButton; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Create reference to UI elements webView = (WebView) findViewById(R.id.webview_compontent); urlField = (EditText)findViewById(R.id.url); goButton = (Button)findViewById(R.id.go_button); // workaround so that the default browser doesn't take over webView.setWebViewClient(new MyWebViewClient()); // Setup click listener goButton.setOnClickListener( new OnClickListener() { public void onClick(View view) { openURL(); } }); // Setup key listener urlField.setOnKeyListener( new OnKeyListener() { public boolean onKey(View view, int keyCode, KeyEvent event) { if(keyCode==KeyEvent.KEYCODE_ENTER) { openURL(); return true; } else { return false; } } }); } /** Opens the URL in a browser */ private void openURL() { webView.loadUrl(urlField.getText().toString()); //webView.requestFocus(); } private class MyWebViewClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; } } }