我们可以使用 off() 方法从图形移除事件，方法需要传入一个事件类型例如：click、mousedown。
说明：点击圆形将会看见事件绑定的提示框弹出，移除事件后再次点击，提示框不再弹出，表示事件已被移除。
Konva Remove_Event Demoview raw<!DOCTYPE html>
<html>
<head>
<script src="https://unpkg.com/konva@4.0.18/konva.min.js"></script>
<meta charset="utf-8" />
<title>Konva Remove Event Listener Demo</title>
<style>
body {
margin: 0;
padding: 0;
overflow: hidden;
background-color: #f0f0f0;
}
#buttons {
position: absolute;
top: 5px;
left: 10px;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="buttons">
<button id="removeClick">
Remove onclick
</button>
</div>
<script>
function writeMessage(message) {
text.text(message);
layer.draw();
}
var stage = new Konva.Stage({
container: 'container',
width: window.innerWidth,
height: window.innerHeight
});
var layer = new Konva.Layer();
var circle = new Konva.Circle({
x: stage.width() / 2,
y: stage.height() / 2 + 10,
radius: 70,
fill: 'red',
stroke: 'black',
strokeWidth: 4
});
circle.on('click', function() {
alert('You clicked on the circle');
});
layer.add(circle);
stage.add(layer);
document.getElementById('removeClick').addEventListener(
'click',
function() {
circle.off('click');
alert('onclick removed');
},
false
);
</script>
</body>
</html>
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