How to transform text introduced in a edittext into password style (*****)?

I need to do that, like when you put the PIN code in your phone, the numb开发者_运维知识库ers transforms into stars (**).

Is there a way to do that in the layout xml file? If not, is there a way to do it with java?

http://developer.android.com/reference/android/widget/TextView.html#attr_android:password

<EditText 
  android:id="@+id/Text_password"  
  android:password="true" 
  android:layout_width="80dip"   
  android:singleLine="true"
  android:inputType="text" 
  android:hint="Password"
  android:layout_height="wrap_content">

To do it using code:

 fieldname.setTransformationMethod(android.text.method.PasswordTransformationMethod.getInstance());

I solved it. You have to put android:password="true" on the xml.