AlertDialog中的密碼字段

Question

我創建了一個包含編輯文本的警告對話框。如何將edittext的屬性設置爲密碼？

這裏是代碼...

final AlertDialog.Builder alert = new AlertDialog.Builder(this); 
final EditText input = new EditText(this); 

input.setInputType(InputType.TYPE_CLASS_TEXT| InputType.TYPE_TEXT_VARIATION_PASSWORD); 

alert.setView(input); //edit text added to alert 
alert.setTitle("Password Required"); //title setted 

Answer 1

input.setTransformationMethod(PasswordTransformationMethod.getInstance());