Navigator.maxTouchPoints

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返回当前设备能够支持的最大同时触摸的点数。
 

语法

touchPoints = navigator.maxTouchPoints;

样例

if (navigator.maxTouchPoints > 1) {
  // 浏览器支持多点触控
}
Specification Status Comment
Pointer Events – Level 2
maxTouchPoints
Working Draft Non-stable version.
Pointer Events
maxTouchPoints
Recommendation Initial definition.

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 35[1] 29 (29)[2] 10 -ms
11
? 未实现
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? 35[1] 29.0 (29)[2] 10 -ms
11
? 未实现

[1] This was implemented in bug 248918.

[2] Gecko supports this feature behind the preference dom.w3c_pointer_events.enabled, defaulting to false.

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