When I debug, I am getting touch position of the object, not the X and Y position of the object. I used draggable class for creating an object Draggable. Here is my Question: 1. I used react-native-draggable in a project too. You didn't specify how you're rendering the shapes, but for instance if you're rendering an image to drag, you can get the exact top-left coordinates by getting pageX-locationXpageY-locationY. And you can pull them out of nativeEvent like this:.
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am creating an app in React Native. Part of the app is a geofence represented by a polygon, and I want the user to be able to easily drag and resize the polygon with their finger. However, as integrating straight Google Maps into React doesn't seem to really work, I am using react-native-maps.
It seems the draggable property of polygons is not available there. A marker can be draggable, and I presumably can re-render the polygon based on the marker's new location, but 1 the marker dragging is slow and necessitates pushing down on the marker for a second or so before it lifts, and 2 the re-render would not be fluid.
This is what dragging the marker looks like please note I have not yet coded the polygon re-rendering :.
Draggable item for react native
It's clunky--you usually have to press it several times in order to actually pick up the marker. The animations are slow.
And if you haven't turned off the mapview scrolling I have, but it'll need to be on in productionyou frequently end up scrolling the map instead of moving the marker. I know what I want is possiblebecause an app I frequently use does a similar thing. See below:. How can I achieve the same fluidity and ease of use? EDIT 1: Given that the time-wasting animation of picking up and dropping the marker seems hardcoded in, I'm fairly certain that a successful resolution to my problem will not use markers at all.
The working example from another app doesn't seem to use them either. It should be possible to store these points in an object that defines the polygon's shape. The problem then becomes 1 how to re-render the polygon and only the polygon fluidly, and 2 the MapView API doesn't feature an event that fires continuously on press when you're not using a marker.React Drag and Drop Examples
On the other hand, the API does feature an event, onMarkerDragthat fires continuously while dragging a marker. Your example and proposal made me wonder whether or not you should just have the draggable markers be invisible but large and on the corners of the polygon.
How are we doing?
Creating the views
Please help us improve Stack Overflow.With this we can track gesture as an abstracted state and update our UI accordingly. I found the documentation for PanResponder API is a bit hard to follow, but this example and animation guide helped get me going.
After importing PanResponder class, you initiate it with. You could also write it in the constructor. Inside the PanResponder. Then we pass an Animated. View circle component that the user is gesturing with. At this point we have a draggable circle that the user can interact with:. We want the circle to return to its original location when they release the component.
DraggableDrawer component for React Native
Our circle now returns to its initial location:. Now that we have the drag, we need the drop. We create another component with our drop area and use our Draggable component within it:.
Our Screen should now look like this:. To see the source code and play with the live demo check out the Expo Snack I created for this demo. I hope this article has helped you out, reach out in the comments with questions or concerns. Thanks for reading, and happy coding! Sign in. Bi Yoo Follow. React Native Coach Follow. To submit stories for review or for inquiries about sponsorship: wyatt reactnativecoach.
See responses More From Medium. Related reads. Lewis Barnes. Artur Yorsh in Akveo Engineering. Discover Medium. Make Medium yours. Become a member. About Help Legal.Open BuilderX. Share BuilderX. A quick demo to show how we can build a Reddit clone in minutes using BuilderX. Built something amazing? Share it with the team! Be it a developer or someone who you want to share your progress with, the projects can be shared by a simple link.
Developers like it Flex. Designers like it Absolute. Take what you need. Not every developer is a fan of the folder structure we generate. So why compromise? Just export the parts what you like as Components. BuilderX has a range of components to make design process easier.
Create custom UI and use them across the project. Use from a list of Open Source icons for your need, right from the tool. Building complete apps with navigation with just a sketch board! That's insane. You guys pulled off an incredible job.
Congratulations sanketsahu and the team for this big release. We are in the era of nocode tools.It is updated per-release only. This bundle is also what is loaded when installing from npm. At the. Here's how to use it:. It does not create a wrapper element in the DOM. Draggable items are moved using CSS Transforms. This allows items to be dragged regardless of their current positioning relative, absolute, or static.
Elements can also be moved between drags without incident. View the Demo and its source for more. DOM elements support the above properties by default, so you may use those elements as children without any changes.
If you wish to use a React component you created, you'll need to be sure to transfer prop. Note that sending classNamestyleor transform as properties will error - set them on the child element directly.
Alternatively, you can seed the position using defaultPosition. We make one modification to the React philosophy here - we still allow dragging while a component is controlled. We then expect you to use at least an onDrag or onStop handler to synchronize state. This is useful as an abstraction over touch and mouse events, but with full control. It does not set styles or transforms on itself and thus must have callbacks attached to be useful.
Note that there is no start position. Proof of concept for doing a nested drag and drop in React. Features smooth, animated drop and cancel. React-Draggable A simple component for making elements draggable. Draggable Usage View the Demo and its source for more. Note : Only a single child is allowed or an Error will be thrown.
Draggable item for react native
Callbacks will still include all values. Controlled vs. Touch Backend for react-dnd. Initially built for use in KeystoneJS.However, when you want to add nice animations and effects it can be tricky, especially because the documentation for animations is limited, and it might be difficult to grasp the concepts.
Once we have the perfect layout, it is time to add some interaction. In this tutorial, we will learn how to animate an element, drag it around, and drop it.
The idea here is to understand how animations in React Native works. Type the following command:. Inside this app folder create a new file called Viewport. This is where we will write all our code. This way, we can share this component for both iOS and Android apps. Open the index.
This will import React Native and our Viewport, and then register the app. If we want to create an Android app, we can do exactly the same for the index. Now we can create the UI for this example. We are going to create a simple container at the top of the screen and a circle at the middle.
We will allow the user to drag the circle and drop it on the top area. If the user drags the circle somewhere else, then we will animate the circle back to the middle of the screen. For now, we are just going to create the elements and the required styles. Add the following code inside the Viewport. First, we have to import all the components we are going to need. If you have been following my previous posts about the layout systemyou should be familiar with the Component, StyleSheet, View and Text components.
Inside the render method we will create the drop zone which is just a view with some text inside. We will also create the circle that we will drag around. Notice that we are using the Animated. View to display the circle. If we want to animate an element, we need to use the Animated. React Native give us three animatable components: Animated. ViewAnimated. Image and Animated. These classes add the needed support to run fluid animations on these three components. Nothing complicated here, simply adding styles and setting the center of the circle using the size of the device.
As you can see, the same code works great on both devices. For that, we need to use the PanResponder class. Once we have the configurations ready, we need to set these handlers and the animation values to the element that we want to animate. We are ready to test our code, save the changes, and run the simulator.
You should be able to move the circle around the screen.DraggableView is a component for react-native, it allows you have a vertical draggable view that you can drag up or drag down. So, if you drag and release that component, then it keeps moving until reach either initial position or container border. React Native Touch Through View is a simple component library that allows for scroll views and table views to scroll over interactable content without poor performing size and bounds animations.
React Native Example. A drag-and-drop-enabled FlatList for React Native. Drag and drop sort control for react-native. Template react native typescript project with Redux, Saga, React Navigation. If you pass a function as parameter it will be notified when the user drag down the drawer. If you pass a function as parameter it will be notified when the user release the drawer after drag it.
It's the initial position or size for Drawer component. Pass as parameter a renderable react component to show as view can draggable. The height position that the drawer will stop starting from top.