FontMetrics fm = paint.getFontMetrics();
FontMetrics fm = paint.getFontMetrics();
float x = width/2;
//先把基准线调到格子高的中点,再往下移动,ascent - decent这么多距离,就居中了
//但是ascent是负值,所以fm.ascent+fm.decent,既是相减,得到的值也是负值
float y = height/2 - (fm.ascent+fm.decent)/2;
canvas.drawText("1";width + x,y,paint);
05.mp4
06.mp4