nativescript-canvas-plugin
by Osei Fortune | v0.9.0-alpha05
Html Canvas Shim
npm i --save nativescript-canvas-plugin

NativeScript Canvas

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Installation

tns plugin add nativescript-canvas-plugin

Note min ios support atm 11 | min android support 17

IMPORTANT: ensure you include xmlns:canvas="nativescript-canvas-plugin" on the Page element for core {N}

Usage

<canvas:TNSCanvas id="canvas" width="100%" height="100%" ready="canvasReady"/>

2D

let ctx;
let canvas;
export function canvasReady(args) {
console.log('canvas ready');
canvas = args.object;
console.log(canvas);
ctx = canvas.getContext('2d');
ctx.fillStyle = 'green';
ctx.fillRect(10, 10, 150, 100);
}

WEBGL

let gl;
let canvas;
export function canvasReady(args) {
console.log('canvas ready');
canvas = args.object;
gl = canvas.getContext('webgl'); // 'webgl' || 'webgl2'
gl.viewport(0, 0,
gl.drawingBufferWidth, gl.drawingBufferHeight);
// Set the clear color to darkish green.
gl.clearColor(0.0, 0.5, 0.0, 1.0);
// Clear the context with the newly set color. This is
// the function call that actually does the drawing.
gl.clear(gl.COLOR_BUFFER_BIT);
canvas.flush(); // must be called to draw on screen
}

API