Note:

Typescript Suppoerted

Create beautiful React-Native forms within minutes with validator, progress-bar, custom error handling by passing just JSON

If you find this repo useful, please give it a star on github

	Status
Dependencies
Package
License

⭐ Features

• 10+ fully customisable component ready to be used by passing a json (including support for loading data asynchronously)
• Can easily manage Safe Area for devices with notch
• Ingerated with optional progress bar to show user their progress while filling up a form
• Allows throwing custom error and data validation
• Includes loading component
• Instant support for feature and issue using git issue tracker

Index

• Screenshots
• Installation
• Basic Usage and Global Props
• Supported Components and Props Index
• Structuring your Array Object

Screenshots

Installation

RN-Formly use following as peerDependency

1. react-native-device-info
2. react-native-image-crop-picker

npm i react-native-image-crop-picker react-native-device-info rn-formly --save

For iOS, If you are using React Native => 0.60 then simple do

pod install 

else follow this guide

Setting up image crop picker

IOS setup

Image Crop picker requires you to have relevant permission to access camera and storage for both iOS and Android

1. Go to info.plist and add this

<plist version="1.0">
  <dict>
    ...
    <key>NSPhotoLibraryUsageDescription</key>
    <string>$(PRODUCT_NAME) would like access to your photo gallery</string>
    <key>NSCameraUsageDescription</key>
    <string>$(PRODUCT_NAME) would like to use your camera</string>
    <key>NSPhotoLibraryAddUsageDescription</key>
    <string>$(PRODUCT_NAME) would like to save photos to your photo gallery</string>
    <key>NSMicrophoneUsageDescription</key>
    <string>$(PRODUCT_NAME) would like to use your microphone (for videos)</string>
  </dict>
</plist>

You refer to following documentation for more information (and probably for integration in complex project)

or look into this commit

Android Setup

Add following lines in your android/app/src/main/AndroidManifest.xml

 <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="android.permission.CAMERA" />
 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

look at this commit

If this does not work, refer to following instructions.

1. For Image Croper
2. For React Native Device Info

Usage

To get started/or a try it out, you can clone or check out the following repo

Minimilistic Setup Example

import SignupFormComponent from 'rn-formly';


const inputFields = [
  {
    key: 'name', 
    type: 'text', 
    label: `Your Full Name`,
    required: true,
    helper: 'Using your real name would make it more likely for you to get a match',
    templateOptions: { 
      componentProps: {
        placeholder: 'Frank Murphy'
      }
    }
  }, 
  {
    key: 'otp', 
    type: 'otp', 
    label: 'Enter OTP',
    helper: '(optional) but try to enter incorrect date', 
    templateOptions: {
      noOfTextInput: 5,
    }
  }]
  
  const App: () => React$Node = () => {

  const justLogDataFromForms = (index, key, currentValue,  payload) => {
     console.log('Logging from Parent log')
    console.log(index, key, currentValue, payload)
  }

  return (
    <>
      <SignupFormComponent 
      inputFields={inputFields}
      globalButtonText={'Next'}
      onButtonClick={justLogDataFromForms}
      defaultColor={'green'}
      progressBarProps={{
        blink: false
      }}
      /> 
    </>
  );
};

Example usage of all the component can be seen using this file

Required Props

SNO	Prop	Type	Default	Required	description
1.	inputFields	Array	Nope	Yes	Click here
2.	onButtonClick	Async function	Nope	Yes	Passed function receives index of the element in array, key associated with it and the complete payload, This is triggered after user have clicked on the Next button, and before the iteration happens, you can throw errors here to prevent from incrementing to the text state

This is how error handling is done behind the scene: if (error.message) setErrorData({status: true, message: error.message})

Optional Props

Important Props are highlighted.

General Optional Props

SNO	Prop	Type	Default	Required	description
1.	textStyle	TextStyle	none	No	Heading text style (style for your label key in inputFields props)
2.	progressBar	ProgressBarProps	blink: false	No	click here to know more about ProgressBar Component
3.	helperTextStyle	TextStyle	none	No	Helper text style (style for your helper key in inputFields )
4.	backgroundViewColor	string	'white'	No	background for the view of your form
5.	defaultColor	string	'black'	no	Formats button color, text color and sub component color accordingly (can be override by passing styles for individual component)
6.	onFinish	function	none	No	Function which is triggered after user have itterated over all the elements in the passed inputFields
7.	backIconStyle	TextStyle	none	No	Styling for the back button <
8.	startingIndex	number	0 (inital number of your inputfields	no	which object to start with your input fields array

Button Optional props

Validation and Error throwing are done in inputFields array. See inputFields section to know more

SNO	Prop	Type	Default	Required	description
1.	buttonSelectedStyle	ViewStyle	none	No	Styling of the button when a user is allowed to move to the next field
2.	buttonNotSelectedStyle	ViewStyle	none	No	styling of the button when a user is not allowed to move to the next field
3.	buttonSelectedTextStyle	TextStyle	none	No	styling of the text inside the button when a user is allowed to move to the next field
4.	buttonNotSelectedTextStyle	TextStyle	none	no	styling of the text inside the button when a user is not allowed to move to the next field
5.	globalButtonText	string	"Next"	no	button Text to move to next screen (can be overwritten by passing button text in inputArray field object

Error Props

Validation and Error throwing is done in the inputFields array. See inputFeilds section to know more.

SNO	Prop	Type	Default	Required	description
1.	defaultErrorMessage	string	'Sorry Something went wrong'	No	Error message for user when error occurs but the error does not contain a message for failure
2.	errorStyle	stylesheet object	none	No	Text Styling for error message

Note

1. for stylesheet object type props. you need to pass props like this

const styles = StyleSheet.create({
  someStyle: {
    ....
    ....
  }, 
})

and then pass styles.someStyle in props

2. For stylesheet object, Default None does not mean that element won't have any styles; the props provided by the user would override the default styling.

inputFields Props

inputFields Props supports most of the popular components you would need in a form. If we are missing any component, create an issue, and we should be able to add within 2-4 days.

Currently Supported Component

1. Text
2. dataTyper
3. checkboxes
4. picker
5. image,
6. images
7. AutoComplete
8. otp

Structuring your Array Object

  {
    key: 'name', 
    type: 'text', 
    label: 'Your Full Name',
    helper: 'Using your real name would make it more likely for you to get a match',
    templateOptions: { 
      componentProps: {
        placeholder: 'Frank Murphy'
      },
      templateStyle: styles.textStyle // refer to the style component
    }
  }

Global Properties for each object

S.NO	key	type	description	Required
1.	key	string	Unique key to identify the object	Yes
2.	type	string	type of component you want to use (should be one of the above)	Yes
3.	label	string	Heading for the field	Yes
4.	helper	string	Helper for the field	No
5.	templateOptions	object	props for specific components	No
6.	Validator	function	sometimes you want to do validation in the real-time and not after the next button is clicked, in this case, pass the validator function. A validator function would receive the following data in its argument index, key, currentData, payload	No
7.	required	Boolean	if required: true the field cannot be empty i.e. button to iterate to the next component will be disabled	no
8.	buttonText	string	passing buttonText in your key object will overwrite your globalText for that particular screen only	no
3.	defaultValue	(based on component)	this is default value (usually the value user have entered before)	no

Text Component

{
    key: 'name', 
    type: 'text', 
    label: 'Your Full Name',
    helper: 'Using your real name would make it more likely for you to get a match',
    templateOptions: { 
      componentProps: {
        placeholder: 'Frank Murphy'
      },
      templateStyle: styles.textStyle // refer to the style component
    }
  }

Component level Props are mostly passed in templateOptions

Default Value type: string

TemplateOptions keys with value

S.NO	key	type	description	Required
1.	componentProps	object	Can pass all the props for TextInput	no
2.	templateStyle	style object	stying for text input	no

dateTyper

  {
    key: 'dob', 
    type: 'dateTyper', //change this to Dob component
    label: 'Your Date of birth',
    helper: 'Your Birthdate will help us in connecting you with people of similar age',
    required: true
  }, 

TemplateOptions key/value

S.NO	key	type	description	Required	Default
1.	dateFormat	string	should be either DDMMYYYY, or MMDDYYYY or YYYYMMDD	No
2.	componentProps	NextInputProps	Read more about next input dependency which we use here	no

Default Value type: Array of strings or string

checkboxes

  {
    key: "gender", 
    type: 'checkboxes',
    label: 'Select your Gender', 
    helper: '(Optional), Please select a gender', 
    templateOptions: {
      options: [
  {
  key: 'male',
  label: 'Male',
  value: false 
  },
  {
    key: 'female', 
    label: 'Female',
    value: false
  },
  {
    key: 'others', 
    label: 'Others',
    value: false
  }
]
    }
  }, 

TemplateOptions key/value

S.NO	key	type	description	Required	Default
1.	options	Array	should contain key, label and value	Yes	None

image (single image)

  {
    key: 'image',
    type:'image', 
    label: "Upload your cover image", 
    helper: 'You can change your profile pic anytime from settings',
    templateOptions: {
     cropHeight: 200,
     cropWidth: 300
    }
  },

defaultValue type: ImageType;

TemplateOptions key/value

S.NO	key	type	description	Required	Default
1.	cropWidth	number	width of the image user is allowed to crop/select	no	none
2.	cropHeight	number	heoght of the image user is allowed to crop/select	no	none
3.	imageComponentStyle	ImageStyle	styling your image component	no

images

  {
    key: 'image',
    type:'images', 
    label: "Upload your cover image", 
    helper: 'You can change your profile pic anytime from settings',
    templateOptions: {
     cropHeight: 200,
     cropWidth: 300
    }
  },

defaultValue type: Array of ImageType;

TemplateOptions key/value

S.NO	key	type	description	Required	Default
1.	cropWidth	number	width of the images user is allowed to crop/select	no	none
2.	cropHeight	number	heoght of the images user is allowed to crop/select	no	none

OTP

   {
    key: 'otp', 
    type: 'otp', 
    label: 'Enter OTP',
    helper: '(optional) but try to enter incorrect date', 
    templateOptions: {
      noOfTextInput: 5,
    }
  }, 

TemplateOptions key/value

S.NO	key	type	description	Required	Default
1.	noOfTextInput	number	number of character in your otp	yes	none
2.	componentProps	NextInputProps	Read more about next input dependency which we use here	no

AutoComplete

{
    key: 'autoComplete', 
    type: 'autoComplete', 
    label: 'Type Programming language',
    helper: "This is an example of Auto Complete Component, Don't try to make sense out of the returned data",
    templateOptions: { 
      asyncFunction: async function (text) {
        return async data
      }
    }
  }

Where data should be object Array containg id, value, title

 [{
    { 
      id: 1,
      title: "Javascript",
      value: "javascript"
    },
    { 
      id: 2,
      title: "Java",
      value: "java"
  },
}]

Click here to see the example da

TemplateOptions key/value

S.NO	key	type	description	Required	Default
1.	componentProps	NextInputProps	Read more about next input dependency which we use here	no
2.	asyncFunction	async function	this function will recive the input text and should return suggestions accordingly (via making some api call etc)	yes	none
3.	loaderRequired	Boolean	shows loader until user recieves the data from async function	no	false
4.	listViewStyle	styling object	styling for the list list view	no	nope
5.	listTextStyle	styling object	styling for the text in the list view	no	nope
6.	textInputStyle	TextStyleObject	Input box text style	no	nope
7.	debouncingEnable	boolean	enable debouncing to fetch data	no	true
8.	debouncingTime	number	debouncing time to make request	500	false

Picker

  {
    key: "gender", 
    type: 'picker',
    label: 'Select your Gender', 
    helper: '(Optional), Please select a gender', 
    templateOptions: {
      options: [
  {
  key: 'male',
  label: 'Male',
  value: false 
  },
  {
    key: 'female', 
    label: 'Female',
    value: false
  },
  {
    key: 'others', 
    label: 'Others',
    value: false
  }
]
    }
  }, 

TemplateOptions key/value

S.NO	key	type	description	Required	Default
1.	options	Array	should contain key, label and value	Yes	None