Font Customization in Xamarin Text Input Layout (SfTextInputLayout)

You can customize the appearance (size, attributes, and family) of font by setting the FontFamily, FontSize, and FontAttributes properties of the LabelStyle property.

Refer to this documentation to configure the custom fonts in Xamarin.Forms.

Hint

You can customize the font of hint label by setting the FontFamily, FontSize, and FontAttributes properties of HintLabelStyle in SfTextInputLayout.

<inputLayout:SfTextInputLayout
    Hint="Name"
    ContainerType="Outlined"
    CharMaxLength="3"
    ShowCharCount="True"
    HelperText="Enter your name">
    <Entry />
    <inputLayout:SfTextInputLayout.HintLabelStyle>
                <inputLayout:LabelStyle FontSize="16">
                    <inputLayout:LabelStyle.FontFamily>
                        <OnPlatform x:TypeArguments="x:String" iOS="Lobster-Regular" Android="Lobster-Regular.ttf#Lobster-Regular" WinPhone="Assets/Fonts/Lobster-Regular.ttf#Lobster" />
                    </inputLayout:LabelStyle.FontFamily>
                </inputLayout:LabelStyle>
    </inputLayout:SfTextInputLayout.HintLabelStyle>
</inputLayout:SfTextInputLayout>
var inputLayout = new SfTextInputLayout();
inputLayout.Hint = "Name";
inputLayout.ContainerType = ContainerType.Outlined;
inputLayout.HelperText = "Enter your name";
inputLayout.CharMaxLength = 3;
inputLayout.ShowCharCount = true;
inputLayout.HintLabelStyle = new LabelStyle() { FontFamily = Device.OnPlatform("Lobster-Regular", "Lobster-Regular.ttf#Lobster-Regular", "Assets/Fonts/Lobster-Regular.ttf#Lobster"), FontSize = 16};
inputLayout.InputView = new Entry();

Hint label style

Helper text

You can customize the font of helper text label by setting the FontFamily, FontSize, and FontAttributes properties of HelperLabelStyle in SfTextInputLayout.

<inputLayout:SfTextInputLayout
    Hint="Name"
    ContainerType="Outlined"
    CharMaxLength="3"
    ShowCharCount="True"
    HelperText="Enter your name">
    <Entry />
    <inputLayout:SfTextInputLayout.HelperLabelStyle>
                <inputLayout:LabelStyle FontSize="12">
                    <inputLayout:LabelStyle.FontFamily>
                        <OnPlatform x:TypeArguments="x:String" iOS="Lobster-Regular" Android="Lobster-Regular.ttf#Lobster-Regular" WinPhone="Assets/Fonts/Lobster-Regular.ttf#Lobster" />
                    </inputLayout:LabelStyle.FontFamily>
                </inputLayout:LabelStyle>
    </inputLayout:SfTextInputLayout.HelperLabelStyle>
</inputLayout:SfTextInputLayout>
var inputLayout = new SfTextInputLayout();
inputLayout.Hint = "Name";
inputLayout.ContainerType = ContainerType.Outlined;
inputLayout.HelperText = "Enter your name";
inputLayout.CharMaxLength = 3;
inputLayout.ShowCharCount = true;
inputLayout.HelperLabelStyle = new LabelStyle() { FontFamily = Device.OnPlatform("Lobster-Regular", "Lobster-Regular.ttf#Lobster-Regular", "Assets/Fonts/Lobster-Regular.ttf#Lobster"), FontSize = 12};
inputLayout.InputView = new Entry();

Helper label style

Error text

You can customize the font of error text label by setting the FontFamily, FontSize, and FontAttributes properties of ErrorLabelStyle in SfTextInputLayout.

<inputLayout:SfTextInputLayout
    Hint="Name"
    ContainerType="Outlined"
    CharMaxLength="3"
    ShowCharCount="True"
    HelperText="Enter your name"
    HasError="True"
    ErrorText="Enter valid name">
    <Entry />
    <inputLayout:SfTextInputLayout.ErrorLabelStyle>
                <inputLayout:LabelStyle FontSize="12">
                    <inputLayout:LabelStyle.FontFamily>
                        <OnPlatform x:TypeArguments="x:String" iOS="Lobster-Regular" Android="Lobster-Regular.ttf#Lobster-Regular" WinPhone="Assets/Fonts/Lobster-Regular.ttf#Lobster" />
                    </inputLayout:LabelStyle.FontFamily>
                </inputLayout:LabelStyle>
    </inputLayout:SfTextInputLayout.ErrorLabelStyle>
</inputLayout:SfTextInputLayout>
var inputLayout = new SfTextInputLayout();
inputLayout.Hint = "Name";
inputLayout.ContainerType = ContainerType.Outlined;
inputLayout.HelperText = "Enter your name";
inputLayout.CharMaxLength = 3;
inputLayout.ShowCharCount = true;
inputLayout.HasError = true;
inputLayout.ErrorText = "Enter valid name";
inputLayout.ErrorLabelStyle = new LabelStyle() { FontFamily = Device.OnPlatform("Lobster-Regular", "Lobster-Regular.ttf#Lobster-Regular", "Assets/Fonts/Lobster-Regular.ttf#Lobster"), FontSize = 12};
inputLayout.InputView = new Entry();

Error label style

Counter label

You can customize the font of counter label by setting the FontFamily, FontSize, and FontAttributes properties of CounterLabelStyle in SfTextInputLayout.

<inputLayout:SfTextInputLayout
    Hint="Name"
    ContainerType="Outlined"
    CharMaxLength="3"
    ShowCharCount="True"
    HelperText="Enter your name">
    <Entry />
    <inputLayout:SfTextInputLayout.CounterLabelStyle>
                <inputLayout:LabelStyle FontSize="12">
                    <inputLayout:LabelStyle.FontFamily>
                        <OnPlatform x:TypeArguments="x:String" iOS="Lobster-Regular" Android="Lobster-Regular.ttf#Lobster-Regular" WinPhone="Assets/Fonts/Lobster-Regular.ttf#Lobster" />
                    </inputLayout:LabelStyle.FontFamily>
                </inputLayout:LabelStyle>
    </inputLayout:SfTextInputLayout.CounterLabelStyle>
</inputLayout:SfTextInputLayout>
var inputLayout = new SfTextInputLayout();
inputLayout.Hint = "Name";
inputLayout.ContainerType = ContainerType.Outlined;
inputLayout.HelperText = "Enter your name";
inputLayout.CharMaxLength = 3;
inputLayout.ShowCharCount = true;
inputLayout.CounterLabelStyle = new LabelStyle() { FontFamily = Device.OnPlatform("Lobster-Regular", "Lobster-Regular.ttf#Lobster-Regular", "Assets/Fonts/Lobster-Regular.ttf#Lobster"), FontSize = 12};
inputLayout.InputView = new Entry();

Counter label style

See also

How to customize the properties of outline border colors, hint name, helper text, error text, and char count

How to apply LineBreakMode for labels in SfTextInputLayout

How to customize the color of border and labels in SfTextInputLayout