如何防止 "longpress" 触摸事件监听器也被 "touch up" 事件调用？
How to prevent a "longpress" touch event listener from being called for a "touch up" event as well?
我有一个对象的以下事件侦听器。
canvas.on('touch:longpress', (e) => {
// Some Code
});
此侦听器在长按后被调用，并且还调用“修饰”事件。为什么会发生这种情况，如何绕过？
var isTouching = false;
canvas.on('mouse:down', function (e) {
console.log('touchstart');
isTouching = true;
});
canvas.on('touch:longpress', function (e) {
if (isTouching) {
// Some Code
console.log('longpress');
}
});
canvas.on('mouse:up', function (e) {
console.log('touchend');
isTouching = false;
});
您可以使用布尔变量解决这种情况。
我有一个对象的以下事件侦听器。
canvas.on('touch:longpress', (e) => {
// Some Code
});
此侦听器在长按后被调用，并且还调用“修饰”事件。为什么会发生这种情况，如何绕过？
var isTouching = false;
canvas.on('mouse:down', function (e) {
console.log('touchstart');
isTouching = true;
});
canvas.on('touch:longpress', function (e) {
if (isTouching) {
// Some Code
console.log('longpress');
}
});
canvas.on('mouse:up', function (e) {
console.log('touchend');
isTouching = false;
});
您可以使用布尔变量解决这种情况。