android - 在 Canvas 中旋转文本

Question

如何旋转 Canvas 中的文本？我需要翻转我颠倒的文字。

paint.setTextSize(20); 
canvas.drawText("3AM", xStored, yStored, paint);

Answer 1

引用这个link

 int x = 75;
    int y = 185;
    paint.setColor(Color.GRAY);
    paint.setTextSize(25);
    String rotatedtext = "Rotated helloandroid :)";

    //Draw bounding rect before rotating text:

    Rect rect = new Rect();
    paint.getTextBounds(rotatedtext, 0, rotatedtext.length(), rect);
    canvas.translate(x, y);
    paint.setStyle(Paint.Style.FILL);

    canvas.drawText(rotatedtext , 0, 0, paint);
    paint.setStyle(Paint.Style.STROKE);
    canvas.drawRect(rect, paint);

    canvas.translate(-x, -y);


    paint.setColor(Color.RED);
    canvas.rotate(-45, x + rect.exactCenterX(),y + rect.exactCenterY());
    paint.setStyle(Paint.Style.FILL);
    canvas.drawText(rotatedtext, x, y, paint);