ObscureWidget() blurs its child when the screen is being captured. ObscureWidget.builder() gives extra control to add custom handling when the screen is recorded. currently supported on only iOS platform.

Example

Initial	While recoding

Usages

Lets take a look at how to use ObscureWidget, ObscureWidget.builder() and .obscured() extension.

ObscureWidget

supported parameters blur, blurColor, borderRadius, and colorOpacity

ObscureWidget(
    child: Container(
    width: double.infinity,
    color: Colors.amber,
    padding: const EdgeInsets.all(18.0),
    child: Text(
        'Secure Text',
        style: Theme.of(context).textTheme.headline6,
        ),
    ),
)

with .obscured() extension

 Container(
    width: double.infinity,
    color: Colors.amber,
    padding: const EdgeInsets.all(18.0),
    child: Text(
    'Other Secure Text with extension',
    style: Theme.of(context).textTheme.headline6,
    ),
).obscured(blur: 2, blurColor: Colors.red),

ObscureWidget.builder()

use this for custom implementation

ObscureWidget.builder(
    obscureBuilder: (context, isCaptured, child) {
    return Container(
        decoration: BoxDecoration(
        border: Border.all(
            width: 4,
            color: isCaptured ? Colors.red : Colors.green,
            ),
        ),
        child: child,
    );
    },
    child: Container(
    width: double.infinity,
    color: Colors.black,
    padding: const EdgeInsets.all(18.0),
    child: Text(
        'Other Secure Text with builder constructor',
        style: Theme.of(context).textTheme.headline6?.copyWith(color: Colors.white),
        ),
    ),
)