react-native-image-picker-with-bytes
v0.9.0
Published
A React Native module that allows you to use the native UIImagePickerController UI to select a photo from the device library or directly from the camera.
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react-native-image-picker
A React Native module that allows you to use the native UIImagePickerController UI to either select a photo from the device library or directly from the camera, like so:
Requires iOS 8 or higher
Install
npm install react-native-image-picker@latest --save
- In the XCode's "Project navigator", right click on your project's Libraries folder ➜
Add Files to <...>
- Go to
node_modules
➜react-native-image-picker
➜ select theUIImagePickerManager
folder Make sure you have 'Create Groups' selected - Make sure
UIImagePickerManager.m
is listed under 'Compile Sources' in your project's 'Build Phases' tab - Compile and have fun!
Usage
- In your React Native javascript code, bring in the native module:
var UIImagePickerManager = require('NativeModules').UIImagePickerManager;
- Use it like so:
When you want to display the picker:
// Specify any or all of these keys
var options = {
title: 'Select Avatar', // specify null or empty string to remove the title
cancelButtonTitle: 'Cancel',
takePhotoButtonTitle: 'Take Photo...', // specify null or empty string to remove this button
chooseFromLibraryButtonTitle: 'Choose from Library...', // specify null or empty string to remove this button
customButtons: {
'Choose Photo from Facebook': 'fb', // [Button Text] : [String returned upon selection]
},
maxWidth: 100,
maxHeight: 100,
quality: 0.2,
allowsEditing: false, // Built in iOS functionality to resize/reposition the image
noData: false, // Disables the base64 `data` field from being generated (greatly improves performance on large photos)
storageOptions: { // if this key is provided, the image will get saved in the documents directory (rather than a temporary directory)
skipBackup: true, // image will NOT be backed up to icloud
path: 'images' // will save image at /Documents/images rather than the root
}
};
// The first arg will be the options object for customization, the second is
// your callback which sends bool: didCancel, object: response.
//
// response.data is the base64 encoded image data
// response.uri is the uri to the local file asset on the device
// response.isVertical will be true if the image is vertically oriented
// response.width & response.height give you the image dimensions
UIImagePickerManager.showImagePicker(options, (didCancel, response) => {
console.log('Response = ', response);
if (didCancel) {
console.log('User cancelled image picker');
}
else {
if (response.customButton) {
console.log('User tapped custom button: ', response.customButton);
}
else {
// You can display the image using either:
const source = {uri: 'data:image/jpeg;base64,' + response.data, isStatic: true};
const source = {uri: response.uri.replace('file://', ''), isStatic: true};
this.setState({
avatarSource: source
});
}
}
});
Then later, if you want to display this image in your render() method:
<Image source={this.state.avatarSource} style={styles.uploadAvatar} />
Directly Launching the Camera or Image Library
To Launch the Camera or Image Library directly (skipping the alert dialog) you can do the following:
// Launch Camera:
UIImagePickerManager.launchCamera(options, (didCancel, response) => {
// Same code as in above section!
});
// Open Image Library:
UIImagePickerManager.launchImageLibrary(options, (didCancel, response) => {
// Same code as in above section!
});