Creating Input TextField at precise position on Ca

2019-05-02 08:59发布

问题:

Canvas can draw text but it cannot create input textfield. This would mean one have to do it in html but then how can you be sure to position that textfield exactly where you want ?

I want to be able to do this programmatically at runtime.

回答1:

Create following HTML structure to place inputbox on canvas.

<div id="container" style="width:500px; height:500px; position:relative;">
    <canvas id="drawing-surface" width="500px" height="500px"></canvas>
    <input type="text" style="position:absolute; left=?; top=?;" />
</div>

Hope this solves your problem. Replace left=? and top=? with appropriate positions.