The specified type, 'MutableRefObject<ForwardRefExoticComponent<TextInputProps & RefAttributes<TextInput>> | null>', cannot be assigned to the type 'Ref<TextInput> | undef'

Encountering an issue when passing a ref to a <TextInput> in React Native:

Error message: Type 'MutableRefObject<ForwardRefExoticComponent<TextInputProps & RefAttributes> | null>' is not assignable to type 'Ref | undefined'. Type 'MutableRefObject<ForwardRefExoticComponent<TextInputProps & RefAttributes> | null>' is not assignable to type 'RefObject'. Types of property 'current' are incompatible. Type 'ForwardRefExoticComponent<TextInputProps & RefAttributes> | null' is not assignable to type 'TextInput | null'. Type 'ForwardRefExoticComponent<TextInputProps & Ref...' is missing some properties from type 'TextInput': isFocused, clear, measure, measureInWindow, and more.ts(2322) index.d.ts(140, 9): The expected type comes from the property 'ref' which is declared here on type 'IntrinsicAttributes & TextInputProps & RefAttributes'

Snippet of code causing the error:

    const useInputRef = () => useRef<typeof TextInput | null>(null);
    const inputRefs = Array.from({ length: numberOfInputs }, useInputRef);     
...
            <TextInput 
                ref={inputRefs[index]} // this line triggers the error

Seeking guidance on how to pass the ref to the TextInput without any errors.

typescriptreact-native

Answer №1

Resolved by substituting useInputRef with a new approach:

const inputRefHook: InputRefType = () => useRef(null);

followed by

export type InputRefType = () => React.MutableRefObject<TextInputRefType | null>;

export type TextInputRefType = TextInput;

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