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M
MarkJ
Known Participant
January 31, 2014
Question

Wrong DPI on iPad

  • January 31, 2014
  • 2 replies
  • 2300 views

Hi,

I have recently updated to AIR 4.0 from AIR 3.6, but now the DPI is wrong on iPad (3, with retina display). I have tried with and without <requestedDisplayResolution>high</requestedDisplayResolution>, but it's with the same result: all buttons, lists etc. are too small. Does anyone know of a solution?

Thanks.

Mark

This topic has been closed for replies.

2 replies

S
srbick2
Participant
April 16, 2014

I'm having a similar issue where an iPad Mini w/ Retina display appears to be a low res deivce:

  • Apache SDK 4.12
  • FlashBuilder 4.7
  • .ipa compiled on both Mac and PC
  • tried pointing to an iOS 5.1 SDK during compile on both Mac and PC

app descriptor:

<iPhone>

        <InfoAdditions><![CDATA[

             <key>UIDeviceFamily</key>

             <array>

                    <string>1</string>

                    <string>2</string>

               </array>

               ]]>

        </InfoAdditions>

        <requestedDisplayResolution>high</requestedDisplayResolution>

</iPhone>

Test app reports -

Capabilities.screenResolutionX: 768

Capabilities.screenResolutionY: 1024

Capabilities.screenDPI: 132

stage.fullScreenWidth: 1024

stage.fullScreenHeight: 768

I'm expecting higher resolution and DPI. Any ideas why?

Test code is here:

https://www.dropbox.com/s/u072ou6enxa54k9/src.zip

Please let me know what else I can provide in order to help troubleshoot.

M
MarkJAuthor
Known Participant
April 16, 2014

I'm not sure this will help, but maybe it can help someone else then :). I solved my problem by adding CSS stuff and icons for the new dpi that were added in the new sdk.

S
srbick2
Participant
April 16, 2014

The problem is that the iPad Mini w/ Retina is incorrectly reporting a low DPI of 132 so low res icons and fonts sizes are being used in the app.

M
MarkJAuthor
Known Participant
February 3, 2014

I have found out why my icons were gone. The value of Capabilities.screenDPI seems to be different now, so I just had to create new assets for that DPI. But all my buttons etc. are still pretty small and difficult to hit when using fingers.

N
Adobe Employee
nimitja
Adobe Employee
February 4, 2014

Hi,

I tried Capabiliites.screenDPI with iPad 3 with build(4.0.0.139) available at http://www.adobe.com/devnet/air/air-sdk-download.html and the values(264 and 132) are correct for both requestedDisplayResolution as high and standard respectively. Could you please share the AIR SDK version you are using.

Regards,

Nimit

M
MarkJAuthor
Known Participant
February 4, 2014

Hi,

Thanks for your reply.

My sdk version is

<name>AIR 4.0.0</name>

<version>4.0.0</version>

<build>1619</build>

I will get back to you when I have a sample application with the problem. The problem also arises in the simulator btw, and now that I test it in the iPhone simulator, I can see there is a minor difference as well. If I set my applicationDPI to 160 in MXML, the iPhone version seems to be correct, but on iPad everything is still too small. When I took over the responsibility of the app (which was AIR 3.5, not 3.6 like I stated previously), applicationDPI was not specified. This seemed to work, but when I updated to 4.0, it didn't work anymore. I have tried different values, but none of them seem to change much in the iPad case.

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