Example of Image Picker in React Native

Example of Image Picker in React Native

Here is an Example of Image Picker in React Native. For picking the image we will use a very good library called react-native-image-picker. Which provides ImagePicker component to in which you can provide the image picking option from Gallery or Camera or From you custom source like Facebook posts.

How to Use

react-native-image-picker library provides an ImagePicker component in which you can set the options like the title of the picker, Your custom Buttons(Name and title of the button) and storage options like skipBackup or path.
Here is the code snippet of ImagePicker we have used in this Example

In this example below, we will open an Image picker on a click of a button and will show the selected image on the Image component. Selection options Camera and Gallery are by default but we have also added a custom button which will simply generate an alert when we click on it but You can do whatever you want. So Let’s get started with our Example.

To Make a React Native App

Getting started with React Native will help you to know more about the way you can make a React Native project. We are going to use react-native init to make our React Native App. Assuming that you have node installed, you can use npm to install the react-native-cli command line utility. Open the terminal and go to the workspace and run
npm install -g react-native-cli
Run the following commands to create a new React Native project
react-native init ProjectName
This will make a project structure with an index file named App.js in your project directory.

Installation of Dependency

To use ImagePicker we need to install react-native-image-picker dependency.

To install this open the terminal and jump into your project using

Run the following command

This command will copy all the dependencies into your node_module directory, You can find the directory in node_module the directory named react-native-image-picker.

Linking of Dependency

To use react-native-image-picker library we have to link some dependencies in Android and IOS project files. In order to link the library you have to run the following command:

After linking the dependency if you face  Could not Compile Settings File project/android/settings.gradle error while building and installing the project then you can find the solution here.

Android Permission to use the Camera and to Read the Storage

We are using a Native API Camera and also going to choose the image from the gallery so we need to add some permission to the AndroidManifest.xml file. We are going to add the following permissions in the AndroidManifest.xml

 

PermissionPurpose
CAMERATo access the camera
WRITE_EXTERNAL_STORAGETo Read and Write the content in the SD card


On devices before SDK version 23, the permissions are automatically granted if they appear in the manifest but after SDK version 23 we have to ask run time permission also, so we will ask for permission in code also. For more about the permission, you can see this post.

IOS Permission to use the Camera and to Read the Storage

1. Open the project ImagePickerExample>ios>ImagePickerExample.xcodeproj in XCode. Click on Project (ImagePickerExample in my case) from the left sidebar and you will see multiple options in the workspace.

2. Select info tab which is info.plist

3. Click on the plus button to add following permission key and value which will be visible when permission dialog pops up.

1. Key: Privacy – Photo Library Additions Usage Description, Value: App needs photo library Access.
2. Key: Privacy – Camera Usage Description, Value: App needs Camera Access Permission for testing.

Code For Image Picker

You can download the source code from Github

OR

Open App.js in any code editor and replace the code with the following code

App.js

To Run the React Native App

Open the terminal again and jump into your project using.
cd ProjectName
To run the project on an Android Virtual Device or on real debugging device
react-native run-android
or on the iOS Simulator by running
react-native run-ios (macOS only).

Android

            

            

IOS

            

This is how you can Pick an Image from the React Native Application. If you have any doubt or you want to share something about the topic you can comment below or contact us here. There will be more posts coming soon. Stay tuned!

Hope you liked it. 🙂

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6 thoughts on “Example of Image Picker in React Native”

  1. On some android phones When I press ‘Choose From Library’ It shows an app chooser rather than going to gallery directly, as a result if I choose any other app other than default photos app and select image the response object is {didCancel:true}

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