Query Device attributes, etc?

[jaygarcia]

Hi,

How does one query Device attributes like screen dimensions via the JS bridge?

[vjeux]

There's a Dimensions module that's not exposed yet. We're working on getting our synchronization in order to be able to expose it

[sahrens]

We're actually re-thinking how this works because it's usually not the right thing to simply grab the screen dimensions (not robust to device rotation, in-call notification bar, etc). We definitely need to provide a solution soon though!

On Feb 16, 2015, at 10:30 AM, Christopher Chedeau notifications@github.com wrote:

There's a Dimensions module that's not exposed yet. We're working on getting our synchronization in order to be able to expose it

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Reply to this email directly or view it on GitHub.

[jaygarcia]

Thanks guys. I imagine people are going to want to do query the device as they are used to doing this with HTML5 apps :)

[stefalda]

I think some sort of access to the device screen size and capabilities is badly needed.

[chirag04]

+1

[brentvatne]

@chirag04 @stefalda - What capabilities did you have in mind? In terms of screen size, what information do you want to have access to beyond the width/height and pixel ratio?

width/height are currently available with require('Dimensions').get('window') which returns {width: x, height: y} and pixel ratio which you can access directly with the PixelRatio module or require('Dimensions').get('window').scale.

So I think this issue is more about being able to watch the device for events that might change the dimensions eg rotation: #426. We can watch for changes in status bar size using react-native-status-bar-size. What else am I missing?

[ide]

There is also https://github.com/pjjanak/react-native-viewport for viewport sizes.

[stefalda]

@brentvatne I didn't know about those methods, but I think they'd be enough for now.
Thank you for the clarification.

[chirag04]

@brentvatne We only need width/height and pixel ratio and for now we are using Dimensions.

But as i read in github issues, dimensions is going to go and is a bad practice. Documented component/module for this would be helpful.

[brentvatne]

@chirag04 - check out the Viewport module that @ide mentioned above, it seems like a good alternative 😄

I'm going to close this issue, let's create a new one when we have some specific attributes that we want to be able to query for so we can handle those on a case-by-case basis.