What is the method to enable users to provide file inputs in React Native?

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To enable users to provide file inputs or to upload files in React Native, we can use the react-native-document-picker library.

Here are the steps to follow:

1. Install react-native-document-picker by running the following command:

   npm install react-native-document-picker
   

2. Import the library in your component:

   import DocumentPicker from 'react-native-document-picker';
   

3. Add a button or any other UI element to trigger the file picker:

   <Button title="Select File" onPress={selectFile} />
   

4. In the selectFile function, call the DocumentPicker.pick method to open the file picker and let the user select a file:

   async function selectFile() {
    try {
      const result = await DocumentPicker.pick({
        type: [DocumentPicker.types.allFiles],
      });
      // Handle the selected file
    } catch (err) {
      // Handle the error
    }
   }
   

   Note that you can pass the type option to restrict the types of files that the user can select.

5. Once the user selects a file, you can handle the selected file in the result object. The result object will contain information about the selected file, such as its URI, name, size, and type.

   console.log(result.uri);
   console.log(result.name);
   console.log(result.size);
   console.log(result.type);
   

   You can then use this information to display the selected file or to upload it to a server.