鸿蒙如何通过资源Id获取资源的方式(二)_harmony arkui 根据id获取元素

获取Vector矢量图片资源方式

 /**
     * get the vector drawable
     *
     * @param context the context
     * @param id      the drawable id
     * @return the vector drawable
     */
    public static VectorElement getVectorDrawable(Context context, int id) {
        Log.info(TAG, "Entering getVectorDrawable");
        if (context == null) {
            Log.info(TAG, "getVectorDrawable -> get null context");
            return null;
        }
        return new VectorElement(context, id);
    }
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获取图片资源方式且转为PixelMap

 /**
     * get the pixel map
     *
     * @param context the context
     * @param id      the id
     * @return the pixel map
     */
    public static Optional<PixelMap> getPixelMap(Context context, int id) {
        Log.info(TAG, "Entering getPixelMap");
        String path = getPathById(context, id);
        if (TextTool.isNullOrEmpty(path)) {
            return Optional.empty();
        }
        RawFileEntry assetManager = context.getResourceManager().getRawFileEntry(path);
        ImageSource.SourceOptions options = new ImageSource.SourceOptions();
        options.formatHint = "image/png";
        ImageSource.DecodingOptions decodingOptions = new ImageSource.DecodingOptions();
        try {
            Resource asset = assetManager.openRawFile();
            ImageSource source = ImageSource.create(asset, options);
            return Optional.ofNullable(source.createPixelmap(decodingOptions));
        } catch (IOException e) {
            Log.error("IOException", e.getMessage());
        }
        return Optional.empty();
    }

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获取图片资源方式且转为PixelMapElement

/**
     * get the Pixel Map Element
     *
     * @param context the context
     * @param resId   the res id
     * @return the Pixel Map Element
     */
    public static PixelMapElement getPixelMapDrawable(Context context, int resId) {
        Optional<PixelMap> optional = getPixelMap(context, resId);
        return optional.map(PixelMapElement::new).orElse(null);
    }
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通过Color设置组件背景色

public static Element buildDrawableByColor(int color) {
        ShapeElement drawable = new ShapeElement();
        drawable.setShape(ShapeElement.RECTANGLE);
        drawable.setRgbColor(RgbColor.fromArgbInt(color));
        return drawable;
    }
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通过Color设置组件带圆角的背景色

public static Element buildDrawableByColorRadius(int color, float radius) {
        ShapeElement drawable = new ShapeElement();
        drawable.setShape(ShapeElement.RECTANGLE);
        drawable.setRgbColor(RgbColor.fromArgbInt(color));
        drawable.setCornerRadius(radius);
        return drawable;
    }
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获取Color

 public static Color getNewColor(Context context, int id) {
        Log.info(TAG, "Entering getNewColor");
        Color result = new Color(getColor(context, id));
        return result;
    }
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