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Dimitar Tachev a94ec9946f Improve ImageAsset scaling (#5110)
* Do not depend on current device screen while calculating Image Asset size.

* Scale the image asset to the exact requested size.

* Process image assets natively, pass keepAspectRatio based on the stretch property and Asset options.

* Fixed the splashscreen resource name as it cannot be read when containing a dot.

* Updated the Image Asset scale and rotate logic based on the Native one.

* Make the ImageAsset size more important than the Image decode size as its more specific.

* Fixed tslint errors.

* Added filePath support in the ImageAsset constructor for iOS in order to unify it with the Android implementation, support for relative files and file not found support errors.

* Added unit tests for ImageAssets.

* Added a sample app for UI testing of image-view with ImageAsset src.

* chore: apply PR comments
2018-02-28 14:04:01 +02:00

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TypeScript

import { EventData } from "tns-core-modules/data/observable";
import { SubMainPageViewModel } from "../sub-main-page-view-model";
import { WrapLayout } from "tns-core-modules/ui/layouts/wrap-layout";
import { Page } from "tns-core-modules/ui/page";
export function pageLoaded(args: EventData) {
const page = <Page>args.object;
const wrapLayout = <WrapLayout>page.getViewById("wrapLayoutWithExamples");
page.bindingContext = new SubMainPageViewModel(wrapLayout, loadExamples());
}
export function loadExamples() {
const examples = new Map<string, string>();
examples.set("roundbtn", "image-view/rounded-buttons");
examples.set("roundimg", "image-view/rounded-images");
examples.set("mode-matrix", "image-view/mode-matrix");
examples.set("stretch-modes", "image-view/stretch-modes");
examples.set("missing-image", "image-view/missing-image");
examples.set("image-asset", "image-view/image-asset/image-asset");
return examples;
}