getTextWidth function

Size getTextWidth({
  1. String text = "",
  2. double fontsize = 0,
})

获取字体的宽高，放在size中

Implementation

Size getTextWidth({String text = "", double fontsize = 0}) {
  //此���主要是拿到text的宽高，然后给个约束，同时把text准确的放到某个位置上
  final textPainter = TextPainter(
    textDirection: TextDirection.ltr,
    text: TextSpan(
      text: text,
      style: TextStyle(fontSize: fontsize),
    ),
  );
  textPainter.layout();
  return Size(textPainter.width, textPainter.height);
}