I reproduce this issue with the most minimal React-Native app:
render() {
return View({style: {
flex: 1,
backgroundColor: 'black'
}})
}
When I rotate my phone, one side of the screen has a white section during the orientation transition. How can I color that area the same as the rest of the background?
In the RootView of your app, the default background color is white. You can change this to another color by using the following steps:
In this example we'll set the background color to black on iOS.
Open AppDelegate.m located in PROJECT_DIR/ios/Appname/ for editing.
Locate snippet that looks similar to the following:
RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
moduleName:#"Appname"
initialProperties:nil
launchOptions:launchOptions];
Add the following line of code immediately after the previous snippet:
rootView.backgroundColor = [UIColor blackColor];
The resulting code block should look like the following:
RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
moduleName:#"Appname"
initialProperties:nil
launchOptions:launchOptions];
rootView.backgroundColor = [UIColor blackColor];
BAM! RootView background color is set on iOS!
This information and more is available from this blog post: Changing the React Native RootView Background Color (iOS and Android) by Jay Garcia. (I believe the Android information in this post may be out of date, which is why I didn't include steps for Android).
Hope this helps!
I created a library, it allows you to do it from the level of JavaScript, and also allows you to do dynamic changes.
https://github.com/johniak/react-native-root-view-background
import { setRootViewBackgroundColor } from 'react-native-root-view-background';
export default class Main extends Component {
componentDidMount(){
setRootViewBackgroundColor('#ccc');
}
}
I am not sure what you are referring to here. But what ever is containing that view needs to have its background set also perhaps?
Related
In my App.js i have set :
import * as NavigationBar from "expo-navigation-bar";
...In my component
useEffect(() => {
if (android) {
NavigationBar.setBackgroundColorAsync("transparent");
}
}, []);
which sets my navigation bars transparent in all screens,but when a modal is visible :
<Modal
animationType="none"
transparent
visible={isVisible}
presentationStyle="overFullScreen"
hardwareAccelerated
>
...navigation bar becomes white,even when i try to set it also within my modal component as well,any known solutions for this ?
I had this problem in Android as well. What I believe is happening is the react-native modal is simply taking the default android:navigationBarColor in the styles.xml and so every time it pops up, it overwrites the current navigation bar color until it gets dismissed.
The flag statusBarTranslucent did not work for me.
I was able to fix this by navigating to /res/values/styles.xml in your app or src folder
It really helps if you change your view style to "Android"
then
Then in the AppTheme style I added navigationBarColor to be transparent.
It looks like this
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:textColor">#android:color/black</item>
<item name="android:navigationBarColor">#android:color/transparent</item> // <----This is what I added
</style>
Then in my react native code, I used react-native-navigation-bar-color. I believe this should work with expo-navigation-bar since the main issue is derived from react native modal trying to overlay the default navBarColor value.
import changeNavigationBarColor from "react-native-navigation-bar-color";
const setDarkMode = (isDarkMode: boolean) => {
// logic to change my app's themeProvider to dark mode
changeNavigationBarColor(isDarkMode ? "black" : "white"); // Then I change the navigation bar color.
};
Hopefully this helps someone!
I am trying to change the loading logo of babylon js however all the tutorials and documentation I found on the official website are not working for me.
I am using a basic babylon viewer using
<babylon id="babylon-viewer" model="mymodel.gltf" templates.main.params.fill-screen="true" observers.on-scene-init="globalSceneInitCallback"></babylon>
and some other javascript to control the camera.
I believe there is a simple way how to just change the loading-image, but cannot figure it out!
Regards and thanks
To change the default values of the babylon viewer's loading screen, you will need to modify the loading screen's template.
The configuration object looks like this:
loadingScreen: {
html: loadingScreen,
params: {
backgroundColor: "#000000",
loadingImage: images.loading,
staticLoadingImage: images.staticLoading
}
},
Just as you changed the fillScreen's parameter of the main template, you can change on of those 3 parameters - background color, loading image, and (better - OR) static loading image. Something along the lines of this:
<babylon id="babylon-viewer" model="mymodel.gltf" templates.loading-screen.params.loadingImage="http://LINK-TO-IMAGE" templates.main.params.fill-screen="true" observers.on-scene-init="globalSceneInitCallback"></babylon>
or:
<babylon id="babylon-viewer" model="mymodel.gltf" observers.on-scene-init="globalSceneInitCallback">
<templates>
<loading-screen>
<params loadingImage="IMAGEURL">
</params>
</loading-screen>
</templates>
</babylon>
As much as I have searched about file sizing for react-file-viewer I could not find anything.
I want to use the react-file-viewer to click on a filename hyperlink and open the file (image, document or excel sheeet) in a new page. The rendering works fine, except for the image/document sizing.
I have the following example:
import React from "react";
import FileViewer from "react-file-viewer";
import { Fragment } from "react";
import imGurPic from "./MainBody/imGurPic.ts";
const MainBody = () => {
const file =imGurPic;
const type = "jpeg";
return (
<Fragment>
<FileViewer fileType={type} filePath={file} />
</Fragment>
);
};
export default MainBody;
The imGurPic is an image I picked randomly from imGur because of its large size (3024x4032 pixels) (don't worry it is a cat image... link here... I converted into a base64 string that I use in the filePath prop of the FileViewer component. Ultimately, it will be a base64 string coming from a db as a byte array.
In the following sandbox I managed to create a demo, only to find out that it is WAY too small (72*96px). I do not really understand why it would take so little space. Also, any document or excelsheet I enter, the maximum height is 96px. How can I change it? It seems to inherit from a parent element but the Mainbody takes all the available space between header and footer.
Any help on this will be appreciated.
Here is the sandbox -->sandbox demo
And in case someone cannot open it, here is a screenshot -->
Had to figure this out as well. If you want your image to scale to fit your sizing requirements, just make height=100% in the surrounding div. E.g.
<div style={{ height: '100%' }}>
<ReactFileViewer />
</div>
If you don't want the image scaled at all, then it's a little trickier. I've had to resort to some messy CSS to override the hardwired width and height settings:
.pg-viewer-wrapper {
overflow-y: unset !important;
}
.photo-viewer-container {
width: unset !important;
height: unset !important;
}
.photo-viewer-container > img {
width: unset !important;
height: unset !important;
}
It would be great if this component had features like scaling (e.g. fit, fill, percentage) but I don't think the library is being maintained any more (looking at the old PRs that are still waiting), so would recommend forking and implementing a cleaner solution than what I have done.
I'm using startTabBasedApp API with three tabs but I need to change the tabBar background color for some of my screens. Is it possible to change the tabBar background color at runtime?
Example:
Screen 1 -> tabBar { tabBarBackgroundColor: "red" }
Screen 2 -> tabBar { tabBarBackgroundColor: "Blue" }
Screen 2 -> tabBar { tabBarBackgroundColor: "yellow" }
I found this section in the documentation: Doc but it doesn't support tabBarBackgroundColor property. Is there a way of doing this functionality?
PS: I am quite new to React / React-native.
Styling BottomTabs during runtime should be possible now that #2524 was merged. Try upgrading to v1.1.339
I am wondering if anyone knows how to toggle between full screen and normal mode in Galleria
The only way I can think of is to switch between themes : default, and Fullscreen theme (which i bought from there)
If you know an even better way, I would appreciate your help.
I’m just going to add to #Ohgodwhy’s answer:
The best way to get the Galleria instance and use the API is to use the Galleria.ready function:
Galleria.ready(function() {
var gallery = this; // galleria is ready and the gallery is assigned
$('#fullscreen').click(function() {
gallery.toggleFullscreen(); // toggles the fullscreen
});
});
Or, you can access the instance via the $.data object if you know that the gallery is initialized:
$('#fullscreen').click(function() {
$('#galleria').data('galleria').toggleFullscreen(); // toggles the fullscreen
});
I am assuming you have a link/button with the ID 'fullscreen' and the gallery is at ID 'galleria'.
I'm using:
lightbox: true,
before Galleria.run(). This allows you to display fullscreen Overlay after clicking on image in the gallery.
This should work:
JS
Galleria.loadTheme('http://aino.github.com/galleria/demos/categories/themes/classic/galleria.classic.min.js');
$('#galleria').galleria();
Galleria.ready(function() {
var gallery = this;
this.addElement('fscr');
this.appendChild('stage','fscr');
var fscr = this.$('fscr')
.click(function() {
gallery.toggleFullscreen();
});
this.addIdleState(this.get('fscr'), { opacity:0 });
});
CSS
.galleria-fscr{
width:20px;
height:20px;
position:absolute;
bottom:0px;
right:10px;
background:url('fullscreen.png');
z-index:4;
cursor: pointer;
opacity: .3;
}
.galleria-fscr:hover{
opacity:1;
}
Where fullscreen.png is an appropriate image of your choice.
The approach from Richard is working very well.
You could also do it by extending Galleria with-out the ready function:
JS
Galleria.run('.galleria', {
// configure
autoplay: true,
lightbox: true,
idleMode: true,
// extend theme
extend: function() {
var gallery = this; // "this" is the gallery instance
//fullscreen button
this.addElement('fscr');
this.appendChild('stage','fscr');
var fscr = this.$('fscr').click(function() {
gallery.toggleFullscreen();
});
// this.addIdleState(this.get('fscr'), { opacity:0 });
}
});`
And if you'd like to use a fontAwesome icon for the maximize icon you can implement it as following (other CSS styles see Richard's post):
CSS
.galleria-fscr:before {
content: "\f065"; /* char code for fa-expand */
position: absolute;
font-family: FontAwesome;
color: #fff;
}
(keep in mind to include the style sheet of fontAwesome with <link rel="stylesheet" href="css/font-awesome.min.css">)
I'm still having one problem with the maximize button. If I'm hovering over it, it doesn't get white and stays gray. Maybe something with the IDLE state is wrong, but I haven't found a solution yet. (If I remove the code line with this.addIdleState(...) the hovering works. I need to do more tests here.)
I'd also like to change the icon from maximize to the minimize icon once the screen is on fullscreen, but I don't know how to do that yet. That's also on my todo list.
Update 07.02.2014
I figured out how to solve these two issues:
For the "IDLE state" issue - I've removed the IDLE state. Because I don't care if these controls are permanently there and now hovering works as expected. Maybe I check another solution later.
To change an icon on click you can do it with CSS and jQuery:
Add an overriding CSS rule below the first before filter of the maximize icon in your CSS e.g.:
.galleria-fscr.minimize:before{
content: "\f066";
}
Add these JS line after gallery.toggleFullscreen() - that toggles the icon with every click between the normal before style and the minimize before style:
$(".galleria-fscr").toggleClass("minimize");
This works also for a play / resume button (rest of the code is the simillar to the fullscreen code):
JS
...
gallery.playToggle();
$('.galleria-pauseResumeBtn').toggleClass("resume");
From the Galleria documentation.
.enterFullscreen( [callback] )
This will set the gallery in fullscreen mode. It will temporary manipulate some document styles and blow up the gallery to cover the browser screen. Note that it will only fill the browser window, not the client screen (javascript can’t do that).
.toggleFullscreen( [callback] )
Toggles fullscreen mode.
If you need any further explanation of the use of these, please don't hesitate to ask.