Styling form using TextInputLayout

InputTextLayout is used to wrap an EditText and to show hint in floating label when user types in the EditText . It makes the form fields very stylish. We can also set & get errors when validating the input data. InputTextLayout is part of Design Support library.

InputTextLayout inherits constants from LinearLayout, ViewGroup and View.

To use InputTextLayout:

Example: Display Login Form using TextInputLayout with validation

Step 1: we need to add a library in build.gradle file in Android Studio:

compile 'com.android.support:design:22.2.1'

1	compile 'com.android.support:design:22.2.1'

Step 2: Create an xml file :

<android.support.design.widget.TextInputLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/email_layout">

    <EditText
        android:id="@+id/email"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:hint="Email"
        android:inputType="textEmailAddress"/>
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/password_layout">

    <EditText
        android:id="@+id/password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:hint="Password"
        android:inputType="textPassword"/>
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:id="@+id/email_layout">

<EditText

android:id="@+id/email"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:singleLine="true"

android:hint="Email"

android:inputType="textEmailAddress"/>

</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:id="@+id/password_layout">

<EditText

android:id="@+id/password"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:singleLine="true"

android:hint="Password"

android:inputType="textPassword"/>

</android.support.design.widget.TextInputLayout>

In above code we have wraped Edit Text into a TextInputLayout.

When user clicks on EditText area, hint floats up. User can see following UI

Step 3: Write code in java file.

TextInputLayout inputLayoutEmail = (TextInputLayout) findViewById(R.id.email_layout);
EditText inputEmail = (EditText) findViewById(R.id.email);

TextInputLayout inputLayoutPassword = (TextInputLayout) findViewById(R.id.password_layout);
EditText inputPassword = (EditText) findViewById(R.id.password);

TextInputLayout inputLayoutEmail = (TextInputLayout) findViewById(R.id.email_layout);

EditText inputEmail = (EditText) findViewById(R.id.email);

TextInputLayout inputLayoutPassword = (TextInputLayout) findViewById(R.id.password_layout);

EditText inputPassword = (EditText) findViewById(R.id.password);

Now, setError & setErrorEnable on TextInputLayout when validating the user input.

//Checking for EditText is empty or not 

String emailId = inputEmail.getText().toString().trim();

if(emailId.isEmpty())
inputLayoutEmail.setError("Email is required!");
else
inputLayoutPassword.setErrorEnabled(false);

//Checking for password length

String password = inputPassword.getText().toString().trim();

if(password.length()<8)
inputLayoutPassword.setError("Enter minimum 8 characters");
else
inputLayoutPassword.setErrorEnabled(false);

//Checking for EditText is empty or not

String emailId = inputEmail.getText().toString().trim();

if(emailId.isEmpty())

inputLayoutEmail.setError("Email is required!");

else

inputLayoutPassword.setErrorEnabled(false);

//Checking for password length

String password = inputPassword.getText().toString().trim();

if(password.length()<8)

inputLayoutPassword.setError("Enter minimum 8 characters");

else

inputLayoutPassword.setErrorEnabled(false);

In above code, We are setting error on instance of TextInputLayout. If email address is empty or password length is less than 8 then it will show an error.

Kuldeep Singh 7 January 2016

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Styling form using TextInputLayout

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