AsteriskPassword in EditText for Android

Hi All,

There are many features or snippet of code, which we are using in our daily development.
Here I am sharing some common basic function for make our life easy and fast in the development.

AsteriskPassword:

In android, By default provide property android:inputType = "textPassword" for Password edit text. But It has minor issue like password character visible while we are typing.
To Restrict this, I have created class AsteriskPasswordUtils. here you can give any password patterns.

AsteriskPasswordUtils.java

import android.text.method.PasswordTransformationMethod;
 import android.view.View;

 public class AsteriskPasswordUtils extends PasswordTransformationMethod
 {
  @Override    
  public CharSequence getTransformation( CharSequence source, View view )
  {
   return new PasswordCharSequence(source);
  }

  private class PasswordCharSequence implements CharSequence
  {
   private CharSequence mSource;

   public PasswordCharSequence( CharSequence source )
   {
    mSource = source; // Store char sequence       
   }

   public char charAt( int index )
   {
    return '*'; // This is the important part        
   }

   public int length()
   {
    return mSource.length(); // Return default        
   }

   public CharSequence subSequence( int start, int end )
   {
    return mSource.subSequence(start, end); // Return default        
   }
  }
 };

MainActivity 





 EditText etPassword = (EditText) findViewById(R.id.etPassword);
 etPassword.setTransformationMethod(new AsteriskPasswordUtils());




Note : Don't forget to add android:inputType = "textPassword" in the edit text on xml.






I will be happy if you will provide your feedback or follow this blog. Any suggestion and help will be appreciated.





Thank you :)