In React Native, using the following:
<StatusBar backgroundColor={config.colors.backgroundGray} barStyle="dark-content" />
works well. However when navigating to a different screen, even though the above is the only instance of StatusBar used in the entire app, the status bar style turns to what essentially is "light-content" on its own. Rendering the StatusBar component deeper in again seems to yield no results.
The backgroundColor is controllable however. Any ideas?
You can apply Statusbar's own function to App.js.
App.js
import { StatusBar } from 'react-native';
StatusBar.setBarStyle('dark-content', true);
static setBarStyle(style: StatusBarStyle, [animated]: boolean)
Related
I am experiencing some behavior of a ReactNative Switch that I cannot explain.
I have a very simple switch (see code below). It has a fixed value prop and its onValueChange-callback is only a log. As a switch is a controlled component, I thought the UI is only rerendered when the value prop changes.
Despite my assumptions the switch shows a quick animation of toggling to false and then jumps back to true. Why is that happening? Does it have to do with the iOS specific component that is used by ReactNative?
import React from "react";
import { Switch, View } from "react-native";
export const SwitchCell = () => {
return (
<View>
<Switch onValueChange={() => console.log("Test")} value={true} />
</View>
);
};
If you want to block the event there is a prop for switch called "onChange" where as parameter you will receive the event and the new value, you can execute a check to decide if will be necessary to set the new property o if it won't change.
In case you doesn't want to change the value of switch you have to call the methods "preventDefault()"
I create a bottom navigation in my react native project. But its not looking good in Iphone10.
It showing extra space in bottom.Please help me how to resolve this.
This is below code i tried.
import BottomNavigation,{FullTab} from 'react-native-material-bottom-navigation'
<BottomNavigation
onTabPress={newTab => this.clickoftab(newTab.key)}
renderTab={this.renderTab}
tabs={this.tabs}
/>
My render tab part is this
renderTab = ({ tab, isActive }) => {
return (
<FullTab
style={{padding:0,margin:0}}
key={tab.key}
isActive={isActive}
label={tab.label}
renderIcon={this.renderIcon(tab.icon)}
/>
)
}
This is my output which i want to change in bottom navigation
Depending of your architecture app, if like you say in the comments, if you use SafeAreaView I thought in create the BottomNavigation at the same level of the SafeAreaView. I mean (sorry my english), I suppose that you have the SafeAreaView in your "Father file" like App.js. So, at the same time you can manage the BottomNavigation from there. So, you could put SafeAreaView inside of BottomNavigation making BottomNavigation the father of your app I guess. I don't know if I am explaining well. The conclusion could be that
just apply SafeArea To things that are inside of Navigation instead of
full application.
I'm new to React Native and I'm trying to have icons that are able to have their color changed based on json data received. I've been able to use React Native Vector Icons. However, I have my own icons that I would like to use. On the linked repo page there is something that talks about generating your own icons, but I'm not familiar enough to know how it is supposed to work. My icons are .png files and I'd like to make them so I can give them a color attribute on the fly in my app. I wanted to see what the process was to be able to do that if it was even possible. Can I use the process described in the repo?
Thanks in advance!
So, to create your own icon component, this could be a simple representation:
import React from 'react'
import { View, Image } from 'react-native'
export default class Example extends React.Component{
renderIcon = (iconName, color) => {
iconName = this.props.iconName
color = this.props.color
return<Image source={require(`/example/icons/${exampleIcon}${color}.png`)}/>
}
render(){
return(
<View>
{this._renderIcon}
</View>
)
}
}
For example, your .png Icon is called IconHomeFocused, and it's an icon of the home icon when it's focused...then you would put, in your component that you want your Icon to be in: <Example iconName = 'IconHome' color = 'Focused'/>. Of course, this requires you to name your icons carefully. I didn't want to write a million if statements so this seemed like the easiest sort of integration for me. I'm sure there are much better interpretations out there though. Good luck.
I'm not using the native navigation for my app. I have these SVGIcon that I want the user to tap and have the new page slide in from the right moving left. On that page when they tap the back, the page should slide back out to right. In other cases, I want the page to slide in from the left, or from the top, etc... Each time, the "back" button should just reverse that transition.
I found this package where I was able to get pages to slide in from the right. The issue I have is that the back button also slides the page off to the left. Here's a sample code I have doing this.
import React from 'react';
import { createTransition, SlideLeft, SlideRight } from 'react-native-transition';
const Transition = createTransition(SlideLeft);
export default class App extends React.Component {
//... some code to decide what page is CurrentScreen
render() {
return (
<Transition>
<CurrentScreen navigate={this.navigate} />
</Transition>
)
}
}
From this code, I'm not sure how I would implement SlideRight if the Transition node is already using SlideLeft. Maybe there's a better package, or a built in way to handle what I want?
Have a look at the following:
https://reactnavigation.org/docs/en/
https://github.com/fram-x/FluidTransitions
the react navigation lib is the simplest to implement, and there is a recommended community extension for fluid transitions, which would allow you to set an an appear and disappear animation:
<Transition appear='scale' disappear='bottom'>
<View style={styles.circle}/>
</Transition>
for native transitions have a look at the excellent library from the wix team: https://wix.github.io/react-native-navigation/#/third-party-libraries-support
I'm using onLayout to detect screen orientation and it's working fine inside my root view, but when I implemented inside the drawer it didn't work, any reason why this happens ?
code :
import Drawer from 'react-native-drawer'
...
onLayout(e) {
console.log('onLayout');
}
<Drawer onLayout={this.onLayout}
It didn't log any thing when orientation changed!
This is because the Drawer component doesn't take onLayout as a prop. You can see in the source code that the rendered View does use onLayout, but it's not pulling from something like this.props.onLayout.
I'm not exactly sure what you're looking to do, but maybe this issue will help you. As it shows, you can pass a function into openDrawerOffset instead of an integer or a ratio in order to be a little more dynamic with how you set your offset:
openDrawerOffset={(viewport) => {
if (viewport.width < 400) {
return viewport.width * 0.1;
}
return viewport.width - 400;
}}
You might also benefit from the Event handlers that react-native-drawer has to offer.