# Is on('pointerdown') alway call twice on mobile?

**URL:** https://phaser.discourse.group/t/is-on-pointerdown-alway-call-twice-on-mobile/10087
**Category:** Phaser 3
**Created:** [August 9, 2021, 10:13am UTC](https://phaser.discourse.group/t/is-on-pointerdown-alway-call-twice-on-mobile/10087 "2021-08-09T10:13:05Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![msssliang](https://yyz2.discourse-cdn.com/free1/user_avatar/phaser.discourse.group/msssliang/32/5361_2.png) [@msssliang](https://phaser.discourse.group/u/msssliang)
#### Post date: [August 9, 2021, 10:13am UTC](https://phaser.discourse.group/t/is-on-pointerdown-alway-call-twice-on-mobile/10087/1 "2021-08-09T10:13:05Z")

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Hello ! I’m making a interactive game object, there is my code:

```javascript
key.setInteractive()
key.on('pointerout', OnNote_up)
key.on('pointerup', release)
key.on('pointerdown', press)
key.on('pointerover', hover)

```

In press() function, I make it record presstime, so it can detect player is double click or not.  
It’s working well on PC, but on mobile, press() function was called twice, so I can’t record the right time, it always return a number very close 0… Q\_Q

so I want to know – on(‘pointerdown’) – is alway call twice on mobile or not? If It is, is there any event can listen when I just want call once on pointerdown? (or another solution?)

thanks !!! \>\_\<

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<div class="post-metadata">

### Author: ![samme](https://yyz2.discourse-cdn.com/free1/user_avatar/phaser.discourse.group/samme/32/5275_2.png) [@samme](https://phaser.discourse.group/u/samme)
#### Post date: [August 9, 2021, 4:12pm UTC](https://phaser.discourse.group/t/is-on-pointerdown-alway-call-twice-on-mobile/10087/2 "2021-08-09T16:12:08Z")

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That sounds not normal.

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<div class="post-metadata">

### Author: ![msssliang](https://yyz2.discourse-cdn.com/free1/user_avatar/phaser.discourse.group/msssliang/32/5361_2.png) [@msssliang](https://phaser.discourse.group/u/msssliang)
#### Post date: [August 10, 2021, 2:42am UTC](https://phaser.discourse.group/t/is-on-pointerdown-alway-call-twice-on-mobile/10087/3 "2021-08-10T02:42:10Z")

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Thanks for replying !  
I think the problem is about performance 🤔 when game running on mobile.  
I’ll do some research, then if I have any performance problem I’ll post new discussion here \>\_\<