AlertDialog中的密码字段

Question

我创建了一个带编辑文本的警告对话框.如何将edittext的属性设置为密码？

这是代码......

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());