Wallpaper size... something weird going on here?

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Hi guys,

So I was hunting around to figure out what the wallpaper size is for the Nexus One... most people seem to state it is 960x800, or 2 times wider than the standard 480 resolution.

I did a test to see how it would look on the device by creating a 960x800 image with red vertical lines every 192 pixels (which will divide it horizontally 5 times to match with the 5 home screens on the N1). Much to my dismay, it actually renders it differently (showing almost 3 of the 192px blocks on the center screen).

When swiping back and forth, it seems like there is some sort of parallax scrolling going on. You can see a full screen of apps/widgets (480px wide) scroll to the side, but you will see the background move some other amount of pixels. It's almost as though the background is scaled in some fashion horizontally. I was assuming it would somehow work like the home screens on the N900, where each screen has 1 block of 800x480 wallpaper space...

Anyone have some insight into what is going on here?

Originally Posted by technogecko6

Hi guys,

So I was hunting around to figure out what the wallpaper size is for the Nexus One... most people seem to state it is 960x800, or 2 times wider than the standard 480 resolution.

I did a test to see how it would look on the device by creating a 960x800 image with red vertical lines every 192 pixels (which will divide it horizontally 5 times to match with the 5 home screens on the N1). Much to my dismay, it actually renders it differently (showing almost 3 of the 192px blocks on the center screen).

When swiping back and forth, it seems like there is some sort of parallax scrolling going on. You can see a full screen of apps/widgets (480px wide) scroll to the side, but you will see the background move some other amount of pixels. It's almost as though the background is scaled in some fashion horizontally. I was assuming it would somehow work like the home screens on the N900, where each screen has 1 block of 800x480 wallpaper space...

Anyone have some insight into what is going on here?

I'm not exactly sure what resolution the backgrounds are, but the "parallax scrolling" has been used in Android since the G1.

If you pick an off-sized background, the OS will tell you to crop it, and the height width ratio is almost square. Anyway, each panel of the home screen will share a bit of the background with the adjacent home screens.

Yup, each homscreens background overlaps with the ones on either side of it.

I believe the correct resolution for the N1 is 960x854

The resolution should be 960x800, because the Nexus is not the droid, it's 800 pixels not 854.

And for there to be 5 home screens on 960 wide, it's only going to scroll 1/5th of the image on each home screen. The parallax scrolling is a cool feature.

Of course it's going to show almost 3 of the 192px blocks on the center screen, because the center screen is 480px wide.

960x800 is correct. Additionally, you could've sorted this quickly by pulling the Launcher2.apk from /system/app, then extracting it and checking the size of the default wallpapers.

So here is another question. Does anyone think its possible to change the scrolling of the background (and size) such that it would be 1 480x800 size block PER home screen?

Originally Posted by technogecko6

So here is another question. Does anyone think its possible to change the scrolling of the background (and size) such that it would be 1 480x800 size block PER home screen?

When I had my g1 the Photoshop app would set wallpapers without asking for cropping even 480x800 so I would use iPhone wallpapers cause we allow know most Mac useres are have some skill in graphics design. Anywho when I tried to use this work around on my nexus it did not work, I'm looking further into this!

Originally Posted by jmotyka

When I had my g1 the Photoshop app would set wallpapers without asking for cropping even 480x800 so I would use iPhone wallpapers cause we allow know most Mac useres are have some skill in graphics design. Anywho when I tried to use this work around on my nexus it did not work, I'm looking further into this!

Came across this. I want to disable scrolling on the background wallpaper too and have a static image. Any updates?

Wallpaper Set & Save is a basic free app from the market that works wonders with hi-res and off-sized images...