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+0028 [数据] 如何获取一个Widget的坐标、所属矩形区域? #62

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toly1994328 opened this issue Sep 23, 2020 · 1 comment

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toly1994328 commented Sep 23, 2020 •

edited

有时需要根据Widget的坐标进行相应处理，可以通过GlobalKey的currentContext.findRenderObject()获取该组件的RenderBox,从而得到相关数据。

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toly1994328 commented Sep 23, 2020

RenderBox renderBox = youKey.currentContext.findRenderObject();
var offsetGlobal = renderBox.localToGlobal(Offset.zero);
Rect globalRect = Rect.fromPoints(
    offsetGlobal,
    offsetGlobal.translate(
        renderBox.size.width, renderBox.size.height));

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