使用Paint绘制HTML

Question

我正在尝试通过生成位图并将其作为标记放置在Google地图片段上来绘制文本。但是，文本需要通过HTML进行风格化。我想知道这是否可行。

public static Bitmap createPureTextIcon(String text){

    Paint textPaint = new Paint();
    //textPaint.setTypeface(TypefaceUtil.get(m))
    textPaint.setTextSize(MAP_DISPLAY_TEXT_SIZE);
    textPaint.setAntiAlias(true);
    textPaint.setTextAlign(Paint.Align.LEFT);

    float baseline = -textPaint.ascent(); // ascent() is negative
    int width = (int) (textPaint.measureText(text) + 0.5f); // round
    int height = (int) (baseline + textPaint.descent() + 0.5f);

    CharSequence m = ViewUtil.noTrailingwhiteLines(Html.fromHtml(text));

    //height * 2
    Bitmap image = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(image);
    canvas.drawText(m.toString(), 0, baseline, textPaint);
    //canvas.translate(0, height*4);
    return image;
}

示例HTML

我主要需要它来渲染<br />

<p style=\"text-align: center;\">Looking<br />at Earth </p>

Answer 1

使用StaticLayout

    StaticLayout layout = new StaticLayout(Html.fromHtml(m.toString()), textPaint, width, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);
    layout.draw(canvas);

Answer 2

尝试canvas.drawText(HTML.fromHtml(text), 0, baseline, textPaint); fromHTML将HTML字符串转换为可绘制的Spannable。