the font family for react native picker is not working
<Picker itemStyle={{backgroundColor: "red",fontFamily:'ArbFONTS-GE_SS_TEXT_LIGHT',}} >
<Picker.Item fontFamily="ArbFONTS-GE_SS_TEXT_LIGHT" label={I18n.translate("reclamation_sujet")} value={I18n.translate("reclamation_sujet")} />
<Picker.Item label={I18n.translate("reclamation_sujet")} value={I18n.translate("reclamation_sujet")} />
</Picker>
I'm using Native base's Picker component and rendering using .map:
Tried everything the Internet has suggested!! Didn't get it fixed yet
<Item rounded style={{marginBottom:20}}>
<Picker selectedValue={this.state.district} onValueChange={(val)=>this.setDistrict(val)}>
<Picker.Item label='Select District' value='0'/>
{this.state.districtsList.map((item,index) => {
return (<Picker.Item label={item.name} value={item.id} key={index+1}/>) //if you have a bunch of keys value pair
})}
</Picker>
Experiencing the same thing!
You can use like this:
<SafeAreaView> Your code block </SafeAreaView>
I'm trying to make a dropdown select box. I'm using react-native's Picker.
I'm using the following code:
<Picker mode={"dropdown"} selectedValue={"test2"} style={{height: 50, width: 125}}>
<Picker.Item label="test" value="test"/>
<Picker.Item label="test2" value="test2"/>
<Picker.Item label="test3" value="test3"/>
<Picker.Item label="test4" value="test4"/>
</Picker>
The Picker still appears to not be a dropdown.
I'm using a IPhone X on the simulator.
The mode props is only supported on Android. From the docs:
mode
On Android, specifies how to display the selection items when the user taps on the picker:
'dialog': Show a modal dialog. This is the default.
'dropdown': Shows a dropdown anchored to the picker view
https://facebook.github.io/react-native/docs/picker#mode
I found out that mode only applies to Android. https://www.npmjs.com/package/react-native-picker-select did the job.
I'm trying to display a dropdown menu in a React Native android app. I used React Native Picker for the purpose, and it seems very limited in styling and positioning the dropdown menu. I cannot get the menu to pop up below the carret (the down arrow button) position.
I tried setting the margin with hope to push the menu down, to no avail.
<Picker
// selectedValue={stateValue}
style={{
height: 36,
width: 261,
}}
onValueChange={itemValue => {
console.log('item value ', itemValue);
}}
>
<Picker.Item key={-1} label={'Search By...'} value="first" />
{this.searchCategory.map((item, index) => (
<Picker.Item key={index} label={item} value={item} />
))}
</Picker>
</View>
The menu always covers the Picker component. I want it to appear below the Picker.
Actual behavior:
Expected behavior:
After some research, this is an Android limitation and it seems there's little we can do with React Native Picker. Some custom packages may give us more control such as https://www.npmjs.com/package/react-native-picker-select, or https://github.com/sohobloo/react-native-modal-dropdown.
I'm trying to add some styling to react-native picker, like underlying and set placeholder, but unable to do so.
const styles = StyleSheet.create({
picker: {
textDecorationLine: 'underline'
}
});
<Picker
style={[styles.picker]}>
<Picker.Item label="Country" value="" />
<Picker.Item label="United States" value="US" />
<Picker.Item label="India" value="IN" />
</Picker>
If i use value="", then it shows country as a selectable value, which i don't want.
textDecorationLine is not able to set the underline styling to picker.
Basically, i am looking to create something like this,
where, i can set the color of placeholder as well.
Thanks in adv.
Picker and Picker item's styling is handled natively on Android. You need to define style for Android's SpinnerItem in android/app/src/res/styles.xml see: How to style the standard react-native android picker?
I tried to test the underline but couldn't seem to find anything that worked. Here is couple of workarounds Android spinner with underline appcompat
However, I would simply use react native's components to our advantage. I'd create a new component that wraps React Native's Picker and put the picker in a View with the underline style that renders a placeholder if the Picker's value is undefined.
You can also use this one for make more attractive to your react-native picker.You can add styles to your view so it can easily make changes to your picker.
import React, { Component } from 'react';
import { View, Picker } from 'react-native';
export default class DropdownDemo extends Component{
state = { user: '' }
updateUser = (user) => {
this.setState({ user: user })
}
render(){
return(
<View
style={{
width: 300,
marginTop: 15,
marginLeft:20,
marginRight:20,
borderColor: 'black',
borderBottomWidth:1,
borderRadius: 10,
alignSelf: 'center'
}}>
<Picker
selectedValue={this.state.user}
onValueChange={this.updateUser}
>
<Picker.Item label="Male" value="Male" />
<Picker.Item label="Female" value="Female" />
<Picker.Item label="Other" value="Other" />
</Picker>
</View>
);
}
}
You need to modify your activity theme as follows:
<!-- Base application theme. -->
<style name="AppTheme">
<!-- Customize your theme here. -->
<item name="colorAccent">#color/colorAccent</item>
<item name="android:spinnerStyle">#style/Base.Widget.AppCompat.Spinner.Underlined</item>
...
</style>
The colorAccent controls the color of the underline, and using #style/Base.Widget.AppCompat.Spinner.Underline provides the underline on your Picker.
You can use this technique to set the styling on almost any android component in React. android:editTextStyle, android:textViewStyle, etc.
Unfortunately, because the React Picker extends Spinner and not AppCompatSpinner, the styling will be a bit different if you're running on API < 21.
The issue here is an assumption that Picker has the properties and styling of TextInput, which it does not. There's a related question here: Have a placeholder for react native picker where a comment outlines what you'll need to render something akin to placeholder text.
In order to achieve something like to textDecorationLine you might apply a borderBottomWidth style to the component.
Also, remember to bind the selectedValue and onValueChange props:
selectedValue={this.state.country} onValueChange={(country) => this.setState({country: country})}>
This is the closest I can get on iOS: https://snack.expo.io/r1L7DGb1Z
Few things to note:
1) there is itemStyle property for setting the specific style for single picker item
2) In order to get down arrow, you have to mimic it manually. You would probably like to attach it's functionality with TouchableHighlight (which isn't done in the example)
3) This doesn't look similar in the Android, so you probably need to append additional, platform specific styling.
This piece of the code is working on my machine:
<View style={{borderBottomWidth:1, borderColor: 'rgb(204, 204,
204)',width: "28%"}}>
<Picker
selectedValue={this.state.pickerValue}
style={[styles.textInputBox]}
onValueChange={this.onChange}>
<Picker.Item label="+31" value="+31" />
<Picker.Item label="+41" value="+41" />
<Picker.Item label="+51" value="+51" />
<Picker.Item label="+61" value="+61" />
</Picker>
</View>