I need to integrate CKeditor in react-native app - react-native

I need to integrate ckeditor or any editor alike inside react native,I found documentation for reactjs but not getting exact way to how to use inside RN app.

try this
https://github.com/vitalyliber/react-native-ckeditor
React Native CKEditor component with no native code for React Native apps built using WebView
here is the complete code.
import CKEditor from 'react-native-ckeditor'
const App = () => {
const [description, setdescription] = useState(`<p>The <code class=" language-php">firstOrNew</code> method, like <code class=" language-php">firstOrCreate</code> will attempt to locate a record in the database matching the given attributes. However, if a model is not found, a new model instance will be returned. Note that the model returned by <code class=" language-php">firstOrNew</code> has not yet been persisted to the database. You will need to call <code class=" language-php">save</code> manually to persist it:</p>`);
const setFieldValue = (value) => {
console.log(value);
}
return (
<>
<StatusBar barStyle="dark-content" />
<SafeAreaView>
<ScrollView
contentInsetAdjustmentBehavior="automatic"
style={styles.scrollView}>
<View style={styles.body}>
<View style={styles.sectionContainer}>
<CKEditor
content={description}
onChange={value => {
setFieldValue(value);
}}
style={{flex:1}}
/>
</View>
</View>
</ScrollView>
</SafeAreaView>
</>
);
};

Related

React native List footer component not rendering(funtion component)

I am trying to achieve pagination for infinite scrolling in react native. When loading, I want to render the loading spinner at the bottom of the Flat list component. (Note: I'm using Expo for this app)
const renderFooter = () => {
if (!category.loading) return null;
return (
<View style={spinnerStyles.container}>
<ActivityIndicator animating size="large" color="#0000ff" />
</View>
);
};
return (
<View style={styles.container}>
<FlatList
columnWrapperStyle={{ justifyContent: "space-between" }}
numColumns={2}
data={category.data}
renderItem={categoryItem}
keyExtractor={(item) => item._id + item.sub_category}
onEndReachedThreshold={0}
listFooterComponent={renderFooter}
onEndReached={() => loadMore()}
/>
</View>
);
The loading spinner not correctly working with the flat list footer.
Has anyone run into this issue before, or does anyone have a solution?
Sorry, it's my simple syntax error. It's actually ListFooterComponent not listFooterComponent. Now it's working fine, Thank you.
Instead of calling the refrence, call the function. It should look something like this.
ListFooterComponent={renderFooter()}

React Native - VirtualizedLists should never be nested inside plain ScrollViews with the same orientation

I'm working on an app for existing web application with expo cli.
I have completed the home screen but I'm getting this warning when using ScrollView
VirtualizedLists should never be nested inside plain ScrollViews with
the same orientation - use another VirtualizedList-backed container
instead.
I have a folder screens where I've all the pages of the website. so currently I have Home.js where I have different sections.
<View>
<Showcase />
<StepsList />
<HomeInfo />
<HomeCorporateMenu />
<HomeMonthlyMenus />
</View>
Then rendeing this component in the root component App.js. but I was not able to scroll down to see other sections.
So I've added SafeAreaView and ScrollView components. now I'm able to scroll but sometimes I get that warning in the console.
I have looked it up SO and found some solutions.
Added style={{ flex: 1 }} and keyboardShouldPersistTaps='always' to ScrollView component
But Still getting the same warning. Any suggestions?
<SafeAreaView style={styles.container}>
<ScrollView>
<Header />
<HomeScreen />
</ScrollView>
</SafeAreaView>
The warning is, obviously, telling you that you shouldn't nest multiple VirtualizedList (FlatList and SectionList) components with the same orientation (the orientation of your lists is probably vertical).
To do it properly, and for the warning to disappear, you have to use the ListHeaderComponent or ListFooterComponent prop of the VirtualizedList and nest them like this:
const App = () => {
const ListFooterComponent = (
<>
<FlatList
// other FlatList props
data={stepsListData}
/>
<FlatList
// other FlatList props
data={homeInfoData}
/>
<FlatList
// other FlatList props
data={homeCorporateMenuData}
/>
{/* ... */}
</>
);
return (
<FlatList
// other FlatList props
data={showcaseData}
ListFooterComponent={ListFooterComponent}
/>
);
};
Or another possible workaround (and not an official resolution) would be to use a FlatList with empty data and renderItem props instead of using a ScrollView. Instead of this:
const App = () => {
return (
<SafeAreaView style={styles.container}>
<ScrollView>
<Header />
<HomeScreen />
</ScrollView>
</SafeAreaView>
);
};
You can use this:
const emptyData = [];
const renderNullItem = () => null;
const App = () => {
const ListFooterComponent = (
<>
<Header />
<HomeScreen />
</>
);
return (
<SafeAreaView style={styles.container}>
<FlatList
data={emptyData}
renderItem={renderNullItem}
ListFooterComponent={ListFooterComponent}
/>
</SafeAreaView>
);
};

React native Flatlist inside modal does not show data sometime

I am trying to to data using Flatlist inside a Modal. But sometimes (Not always) data is not displayed at all. Just empty screen. I am using expo client for test. Below is my code. This render() method is actually in a custom component. So, Modal is inside a custom component. I am not sure Modal has to cause any issue here.
// sometime flatlist does not work when inside a modal
render(){
return (
<View>
{ this.props.visible && this.renderChildModal()}
{ this.props.visible &&
<Modal
animationType="slide"
transparent={false}
visible={true}
onRequestClose={() => {
//Alert.alert('Modal has been closed.');
}}>
<View>
<View style={this.styles.buttonContainer}>
<TouchableOpacity style={this.styles.button}
onPress={this.props.onDone}>
<Text style={styles.labelButton}>Done</Text>
</TouchableOpacity>
</View>
<FlatList
data={this.state.items}
extraData ={this.state}
renderItem={({ item }) => (
<CheckBox
title={item.name}
checked={item.checked}
onPress={()=>this.onSelect(item.id-1)}
/>
)}
keyExtractor={item => item.id.toString()}
/>
</View>
</Modal>
}
</View>
)
}
It was not a problem with Modal. I was calling component named MultiSelect in screen as below,
<MultiSelect
items={specialities}
selectedItems={profile.specialities}
onItemSelected={this.onSelectedSpecialitiesChange}
visible={this.state.specialitiesModalVisible}
onDone={this.specialityMultiSelectDone}
>
</MultiSelect>
Sometime specialities is empty as it is retrieved from server asynchronously.
So, I changed my code as below,
{specialities.length>0 &&
<MultiSelect
items={specialities}
selectedItems={profile.specialities}
onItemSelected={this.onSelectedSpecialitiesChange}
visible={this.state.specialitiesModalVisible}
onDone={this.specialityMultiSelectDone}
>
</MultiSelect> }
That solves the issue.

How to hide the statusBar when react-native modal shown?

I want to hide the status bar, when modal window is shown.
My setup is as following, but it won't work as expected:
<StatusBar animated={true} hidden={true} translucent={true}>
Use statusBarTranslucent
If your status bar is translucent, you can set statusBarTranslucent to the modal.
Added since React Native 0.62
<Modal {...props} statusBarTranslucent>...</Modal>
Credit: https://github.com/react-native-modal/react-native-modal/issues/50#issuecomment-607535322
This is a known issue and there seems to be no official/React way to fix it yet. You can follow the discussion here:
https://github.com/facebook/react-native/issues/7474
I saw a post in this discussion which proposes a hack to hide it, but I haven't tried it on my project. You can also upvote this trick if it works for you.
<View style={styles.outerContainer}
<View style={styles.container}>
<StatusBar hidden={true}/>
<View style={styles.content}>
</View>
<Modal animation={fade} transparent={true}>
{/*Modal Contents Here*/}
</Modal>
</View>
A more solid fix may be changing the theme of activity in native android code.
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.ReactNative.AppCompat.Light.NoActionBar.FullScreen">
<!-- Customize your theme here. -->
</style>
<style name="AppTheme.Launcher">
<item name="android:windowBackground">#drawable/launch_screen</item>
</style>
</resources>
Credits go to Traviskn and mbashiq who proposed fixes above. I recommend you to subscribe that issue.
According to the documentations, you should be able to hide status bar in both iOS and Android using this
import {StatusBar} from 'react-native';
StatusBar.setHidden(true);
We can use the background of StatusBar to solve this problem easily but may not the best.
<Modal transparent>
{Platform.OS === 'android' ?
<StatusBar backgroundColor="rgba(0,0,0,0.5)"/>
: null
}
<View style={{backgroundColor: 'rgba(0,0,0,0.5)'}}>
// ModalContent here
</View>
</Modal>
Just use the same background and this problem can be solved.
I am actually facing the same issue for some time, I tried many solutions but I didn't get rid of this problem. I also tried to use native Android code to hide the StatusBar for a single component it works in other component but when I use it in modal it just not working. So, at last, I got a solution that works for me. I remove the modal view and replace it with react-navigation to navigate to a specific path and handle the back button using BackHandler component.
i achieve this creating a custom status bar component with a modal prop:
import React from 'react'
import { StatusBar } from 'react-native'
const MyStatusBar = (props) => {
const { backgroundColor } = props
const { barStyle } = props
const { translucent } = props
const { hidden } = props
const { showHideTransition } = props
const { modal } = props;
(modal !== undefined) ? StatusBar.setHidden(true) : StatusBar.setHidden(false)
return (
<StatusBar showHideTransition={showHideTransition} hidden={hidden} translucent={translucent} backgroundColor={backgroundColor} barStyle={barStyle} />
)
}
export default MyStatusBar
inside my base component modal prop is undefined so custom status bar is shown:
<MyStatusBar backgroundColor={theme.colors.primary} barStyle={'light-content'} />
and then calling inside the component who call the modal:
<MyStatusBar modal={modalVisible ? true : undefined} />
I think the root of my problem is the same, but it appeared a little different than how it is described above.
Expected behaviour: When the Modal becomes visible the StatusBar should hide.
const [showModal, setShowModal] = useState(false)
...
<Modal
visible={showModal}
>
<StatusBar hidden={showModal} />
...
Actual bahviour: Sometimes the StatusBardissapears as expected, other times just the StatusBar background color goes away and the actual StatusBar remains.
Workaround: Due to the flickering behaviour I think the problem is a racing condition of the native Android dialog. Therefore, I built a custom Modal component that uses the StatusBar imperative api to make sure the StatusBar hide call is made before the Modal appears. So far the Problem has not reappeared.
Here is the custom Modal component:
const Modal = ({ visible, children, ...rest }) => {
const [modalVisibility, setModalVisibility] = useState(false);
useEffect(() => {
if (visible) {
StatusBar.setHidden(true);
setModalVisibility(true);
} else {
StatusBar.setHidden(false);
setModalVisibility(false);
}
}, [visible]);
return (
<RNModal
visible={modalVisibility}
{...rest}
>
{children}
</RNModal>
);
};
export default Modal;
Hello you can try this
<View style={styles.outerContainer}
<View style={styles.container}>
<StatusBar hidden={true}/>
<View style={styles.content}>
</View>
<Modal animation={fade} transparent={true}>
{/* Contents Here*/}
</Modal>
</View>
<StatusBar backgroundColor={'transparent'} translucent={true} />

How to get the html source of WebView object in react native

I'm trying to access the HTML source code of a 3rd party web page to read a specific DOM element value of a page which is loaded in WebView component in react-native.
<WebView
source={{uri: 'https://www.amazon.com'}}
/>
and Suppose there's a DOM element like this:
<span class="price bold some-class-name">$459.00</span>
I also tried this component but could not do that:
https://github.com/alinz/react-native-webview-bridge
Is there any way to get the current HTML source code of page inside a WebView and Read specific DOM element value?
Looks like this functionality was added in React Native v0.37. Adding an onMessage parameter will inject a postMessage variable into your WebView. You can then just inject JavaScript as normal, select your element and postMessage it back.
render (
const jsCode = "window.postMessage(document.getElementsByClassName("price bold some-class-name"))"
return (
<View style={styles.container}>
<WebView
source={{uri: "http://..."}}
onMessage={this._onMessage}
injectedJavaScript={jsCode}
/>
</View>
);
)
The answer by Brian F is great and helped me a lot. There is just one thing missing. You need to append ReactNativeWebView to the postMessage function.
So it would look like
render (
const jsCode = "window.ReactNativeWebView.postMessage(document.getElementsByClassName("price bold some-class-name"))"
return (
<View style={styles.container}>
<WebView
source={{uri: "http://..."}}
onMessage={this._onMessage}
injectedJavaScript={jsCode}
/>
</View>
);
)
In my experience, It will work well, because I've tried to get product information from Amazon and Taobao, Rakuten.
_onMessage = (message) => {
// you can put processing code here.
}
render (
const jsCode = "window.ReactNativeWebView.postMessage(document.getElementsByClassName("class name"))"
// or you can use `document.querySelector("element query")` instead of `document.getElementsByClassName("class name")`
return (
<View style={styles.container}>
<WebView
source={{uri: "url here"}}
onMessage={this._onMessage}
injectedJavaScript={jsCode}
/>
</View>
);
)
For those who are still not getting then try this for the latest react-native
window.ReactNativeWebView.postMessage(document.getElementById('id_here').innerHTML);
const INJECT_JS = `window.ReactNativeWebView.postMessage(document.getElementById('id_here').innerHTML);
alert("Hel0....")
`
return (
<View style={styles.container}>
<WebView
source={{uri: "http://..."}}
onMessage={event => {
console.log(event.nativeEvent.data);
}}
injectedJavaScript={INJECT_JS }
/>
</View>
);
<WebView
source={{html: "<span class="price bold some-class-name">$459.00</span>"
/>
or you can right your template into a constant, then do this:
const HTMLTemplate = `<span class="price bold some-class-name">$459.00</span>`;
<WebView
source={{html: HTMLTemplate}}
/>