NativeScript Image Picker
Imagepicker plugin supporting both single and multiple selection.
Plugin supports iOS8+ and uses Photos Framework.
For Android it uses Intents to open the stock images or file pickers. For Android 6 (API 23) and above the permissions to read file storage should be explicitly required. See demo for implementation details.
Installation
In Command prompt / Terminal navigate to your application root folder and run:
tns plugin add nativescript-imagepicker
tns run
Configuration
No additional configuration required!
Migrating from 4.x.x to 5.x.x
With version 5.x.x major update to the plugin there is a related dependency which needs to be updated inside your project. The plugin uses internally the nativescript-ui-listview
plugin (part of the NativeScript Pro UI components). Recently the monolithic NativeScript Pro UI plugin was split in multiple plugins, each of them representing a single component. Now, instead of the monolithic package, nativescript-imagepicker uses only the component it needs. To use version 5.x.x of the plugin, you need to update any dependencies to nativescript-pro-ui
in your project with the single component alternatives as described in the migration guide.
Migrating from 3.x.x to 4.x.x
With the 4.x.x major update to the plugin there is a related dependency which needs to be updated inside your project. The plugin uses internally the nativescript-pro-ui
plugin (previously known as nativescript-telerik-ui
) which has bee updated and made 100% free. This means that if your project is using the deprecated nativescript-telerik-ui
/pro
plugins adding the latest version of the nativescript-imagepicker
plugin will cause your project to throw an build error when working with iOS. This is because the nativescript-imagepicker
has a dependency to the new nativescript-pro-ui
plugin and when your project also depends on the old nativescript-telerik-ui
plugin there is a native frameworks collision.
In order to solve this you simply have to update to the latest nativescript-pro-ui
, more details on how to migrate from nativescript-telerik-ui
/pro
to nativescript-pro-ui
can be found here.
Usage
The best way to explore the usage of the plugin is to inspect both demo apps in the plugin repository.
In demo
folder you can find the usage of the plugin for TypeScript non-Angular application. Refer to demo/app/main-page.ts
.
In demo-angular
is the usage in an Angular app. Refer to demo-angular/app/app.component.ts
.
In addition to the plugin usage, both apps are webpack configured.
In short here are the steps:
Import the plugin
TypeScript
import * as imagepicker from "nativescript-imagepicker";
Javascript
var imagepicker = require("nativescript-imagepicker");
Create imagepicker
Create imagepicker in single
or multiple
mode to specifiy if the imagepicker will be used for single or multiple selection of images
TypeScript
let context = imagepicker.create({
mode: "single" // use "multiple" for multiple selection
});
Javascript
var context = imagepicker.create({ mode: "single" }); // use "multiple" for multiple selection
Request permissions, show the images list and process the selection
context
.authorize()
.then(function() {
return context.present();
})
.then(function(selection) {
selection.forEach(function(selected) {
// process the selected image
});
list.items = selection;
}).catch(function (e) {
// process error
});
NOTE: To request permissions for Android 6+ (API 23+) we use nativescript-permissions.
API
Methods
- create(options) - creates instance of the imagepicker. Possible options are:
Option | Platform | Default | Description |
---|
mode | both | multiple | The mode if the imagepicker. Possible values are single for single selection and multiple for multiple selection. |
doneText | iOS | Done | The text of the "Done" button on top right. |
cancelText | iOS | Cancel | The text of the "Cancel" button on top left. |
albumsText | iOS | Albums | The title of the "Albums" screen from where the selection of album and images can be done. |
newestFirst | iOS | false | Set to true to sort the images in an album by newest first. |
- authorize() - request the required permissions.
- present() - show the albums to present the user the ability to select images. Returns an array of the selected images.
- cancel() - cancel selection. iOS only.
- done() - confirm the selection is ready. iOS only.
Properties
Property | Default | Description |
---|
selection | null | An array of selected image assets. |
albums | null | Albums from where the images are picked. |
Image properties
Once image is picked some options can be applied to it before it is used:
Option | Default | Description |
---|
maxWidth | null | Image max width |
maxHeight | null | Image max height |
aspectRatio | fit | iOS only. Possible values are fit and fill . Read more |
Contribute
We love PRs! Check out the contributing guidelines. If you want to contribute, but you are not sure where to start - look for issues labeled help wanted
.
Get Help
Please, use github issues strictly for reporting bugs or requesting features. For general questions and support, check out the NativeScript community forum or ask our experts in NativeScript community Slack channel.