Forms In React Native

Palmer says React leaves developers to connect input state, validation, error messages, and tests themselves. As an app grows, teams also need consistent patterns and reusable components across forms.

While building a large administrative dashboard in 2017, Palmer wanted a form solution that did not put local, short-lived form state in Redux. He designed Formik to use React, keep rendering control with developers, and support gradual adoption and removal.

Palmer demonstrates a React Native sign-up form with name, email, and password fields, then builds a simplified `useFormik` hook to manage values, change handlers, and submission. He describes adding blur tracking and validation, with errors and touched state keyed by field name.

Palmer announces Formik Native, a React Native focused build with focus management to move between inputs using `setFocus`. He also shows Yup schema validation and field hooks for building reusable inputs with custom styling, while Formik manages values, errors, touched state, and submission status.

Palmer outlines planned hooks for text inputs, pickers, switches, sliders, and focus management, along with TypeScript support. He says Formik 2 was planned to add `useField` and `useFieldArray`, and recommends focusing libraries on common use cases, keeping APIs consistent, and open-sourcing useful tools.