有有画线的功能吗？类似Android里面的path

好嘞，谢啦

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参考您给的连接以及开发文档里面的view自绘画出来了。
"use strict";
const LogicView = require("lego/framework/ui/LogicView");
const RelativeLayout = require("yunos/ui/layout/RelativeLayout");
const TapRecognizer = require("yunos/ui/gesture/TapRecognizer");
const sysprop = require("sysprop/sysprop");
const AlertPopup = require("lego/control/AlertPopup");
const TAG = "First::";
const CompositeView = require("yunos/ui/view/CompositeView");
const TextView = require("yunos/ui/view/TextView");
const ImageView = require("yunos/ui/view/ImageView");
const Resource = require("yunos/content/resource/Resource");
const PropertyAnimation = require("yunos/ui/animation/PropertyAnimation");

const View = require("yunos/ui/view/View");
const Context = require("yunos/graphics/Context");
// const WebGLView = require("yunos/ui/view/WebGLView");
const Image = require("yunos/multimedia/Image");
const R_360 = 2 * Math.PI;
class MyCanvasView extends View {
    onDraw(context) {
        context.beginPath();
        context.fillStyle = "#FFB144";
        context.moveTo(2400, 600);
        context.lineTo(0, 600);
        context.lineTo(0, 200);
        context.bezierCurveTo(300, 0, 700, 500, 1280, 200);
        context.bezierCurveTo(1580, 0, 1980, 500, 2560, 200);
        context.lineTo(2560, 600);
        context.closePath();
        context.fill();
    }
}

class Wave extends LogicView {
    constructor(options) {
        super(options);
        this._init();
        Logger.D("nnv3",options.info);
    }

    _init() {
        log(TAG, "_init");
        // require("../../rule/FlameoutRuleHandler").getInstance();
    }

    bindModel() {
        Logger.D(TAG, "bindModel");
    }
    onCreate() {
        let c1=this.rootView.findViewById("indexTabViewContainer")

        let view = new MyCanvasView();
        view.left = -1280;
        view.top = 0;
        view.width = 2560;
        view.height = 600;
        // view.background = "black";
        // view.borderColor = "blue";
        // view.borderWidth = 10;
        // view.borderRadius = 20;
        this.animation = new PropertyAnimation(view);
        this.animation.from = {translationX: 0, opacity: 0.7};
        this.animation.to = {translationX: 1280, opacity: 0.7};
        this.animation.duration = 3000;
        this.animation.iterationCount = "infinite";
        // this.animation.timingFunction = "cubic-bezier(0.42, 0, 0.58, 1.0)";
        this.animation.start();

        let view2 = new MyCanvasView();
        view2.left = -1280;
        view2.top = 0;
        view2.width = 2560;
        view2.height = 600;

        this.animation2 = new PropertyAnimation(view2);
        this.animation2.from = {translationX: 0, opacity: 0.4};
        this.animation2.to = {translationX: 1280, opacity: 0.4};
        this.animation2.duration = 4000;
        this.animation2.iterationCount = "infinite";
        // this.animation.timingFunction = "cubic-bezier(0.42, 0, 0.58, 1.0)";
        this.animation2.start();

        c1.addChild(view);
        c1.addChild(view2);


    }

    onShow(data) {
        Logger.D("abc", data);
    }
    onHide(data) {
        Logger.D(TAG, "onHide", data);
    }
    destroy(){
        Logger.D(TAG, "destroy method called");
        super.destroy();
    }
}


module.exports = Wave;

请查看关于yunos.graphics.Context中有关于Canvas 2D API的介绍： https://developer.alios.cn/#/%2Fdevelop%2FReference%2Fauto%2Fgraphics%2Fyunos.graphics.Context?docversion=3

可以使用CAF 框架提供的Canvas2D API 绘制矢量图形