locationrest.blogg.se - React native photo view

React native photo view for android#
React native photo view android#
React native photo view free#

To enable polling for a query, pass a pollInterval configuration option to the useQuery hook with an interval in milliseconds: Polling provides near-real-time synchronization with your server by executing your query periodically at a specified interval. Apollo Client supports two strategies for this: polling and refetching. Sometimes, you want to make sure that your query's cached data is up to date with your server's data. Next, let's learn some techniques for ensuring that our cached data is fresh. You'll notice that the bulldog photo loads instantly the second time around. Then switch to another breed, and then switch back to bulldog.

Select bulldog from the dropdown to see its photo appear. In this case, we want to pass the currently selected breed from the dropdown. The variables option is an object that contains all of the variables we want to pass to our GraphQL query. Notice that we're providing a configuration option ( variables) to the useQuery hook this time. DogPhoto accepts a prop called breed that reflects the current value of the dropdown menu in our Dogs component: To see this caching in action, let's build a new component called DogPhoto. This makes later executions of that same query extremely fast. Whenever Apollo Client fetches query results from your server, it automatically caches those results locally. In the next step, we'll associate the dropdown with a more sophisticated query that uses GraphQL variables. When the user selects a dog breed from the populated dropdown, the selection is sent to the parent component via the provided onDogSelected function. The component renders a dropdown menu that's populated with the list of dog breeds returned by the server.

When loading is false and there is no error, the query has completed.

As long as loading is true (indicating the query is still in flight), the component presents a Loading.

Project( ':react-native-photo-view-ex').projectDir = new File(rootProject.projectDir, './node_modules/react-native-photo-view-ex/android')Īdd the dependency to android/app/build.As our query executes and the values of loading, error, and data change, the Dogs component can intelligently render different UI elements according to the query's state: React-native link react-native-photo-view-exĪdd these lines to android/adle include ':react-native-photo-view-ex' Just two simple steps: yarn add react-native-photo-view-ex

It is possible to use PhotoView as a container (currently iOS only)!.

PhotoView is written in the same manner as default React Image, and it supports most of the features Image has (the goal is to be fully compaitable with Image and support absolutely everything).

PhotoView has more options like fadeDuration and minimumZoomScale/maximumZoomScale and more important callbacks.

It works better, it supports several important callbacks out-of-box and it is, actually, recommended by Chris Banes, because his PhotoView (base for react-native-image-zoom) doesn't completely support Facebook Fresco.

PhotoView is based on PhotoDraweeView which is the "PhotoView For Fresco".

React-native-image-zoom functionality is similar, but there are several major differencies: Invoked when load either succeeds or fails.Ĭallback function called on scale changes.Ĭallback function called on tap outside of the image. Invoked when load completes successfully. The default value is true.Īndroid only: Double-tap zoom transition duration, in milliseconds.

IOS only: When true, shows a vertical scroll indicator. IOS only: When true, shows a horizontal scroll indicator. The default value is 1.0Īndroid only: One of "center", "contain", "cover", "fitStart", "fitEnd", "stretch". Similarly to source, but used to render the loading indicator. The same as source for other React images, except that it does not handle arrays. Usage import PhotoView from 'react-native-photo-view-ex'

React native photo view free#

Changes to some properties, mainly androidScaleType replaced by resizeMode.Īll this is to adapt it better to my current project (it is not tested on iOS), but feel free to use it.Changes to gradle config to support the new version.Using the same version of fresco included by react-native.Peer dependent on react-native v0.57 and above.

React native photo view android#

Android Build Tools 28.0.3 and targetSdkVersion 28 (configurable).

This fork is based on the great work of (Alexander Pantyuhov) and has this changes:

React native photo view for android#

This component uses PhotoDraweeView for Android and MWPhotobrowser on iOS. Provides custom Image view for React Native that allows to perform pinch-to-zoom on images.