How to convert uppercase letter to lowercase?

Question

I am creating one application, in my login page I am able to enter uppercase and lowercase letters both, what I want is if the user enters letters in uppercase it should convert to lowercase, in short, I don't want to allow the user to enter uppercase letters.

<EditText
    android:id="@+id/email"
    android:layout_width="match_parent"
    android:layout_height="60dp"
    android:layout_marginLeft="15dp"
    android:layout_marginRight="15dp"
    android:background="@drawable/f_name"
    android:gravity="center"
    android:hint="EMAIL"
    android:inputType="textEmailAddress"
    android:textColor="#676767"
    android:textSize="20sp"/>

<EditText
    android:id="@+id/password"
    android:layout_width="match_parent"
    android:layout_height="60dp"
    android:layout_below="@id/email"
    android:layout_marginLeft="15dp"
    android:layout_marginRight="15dp"
    android:layout_marginTop="5dp"
    android:background="@drawable/f_name"
    android:gravity="center"
    android:hint="PASSWORD"
    android:inputType="textPassword"
    android:textColor="#676767"
    android:textSize="20sp"/>

Code

etemail = (EditText) findViewById(R.id.email);
etemail.setInputType(android.text.InputType.TYPE_CLASS_TEXT | android.text.InputType.TYPE_TEXT_FLAG_MULTI_LINE);

Answer 1

In the XML, add this for your edittext,if you want to restrict the user to input lowercase only.

android:digits="abcdefghijklmnopqrstuvwxyz "

OR

android:digits="abcdefghijklmnopqrstuvwxyz1234567890 "

if you also want to allow to input numbers.