Why isn't the UI Root the same size as the camera

[gamedivisionuk]

ive created new scene with a new 2D UI then adding a sprite to the screen added an anchor
my first question is why is the root UI different size to the actuall screen size
seconds question why does the anchor attach itsself to the root UI rather than the actual screen size

the reason i ask this is because the uiRoot never changes its dimensions whereas the screen size changes depending on the screen size of your phone,ipad or whatever device you have
so with this scenario the sprite never actually moves, therefore i could never make an app that will work on all devices
Unity UI works straight out the bag with no problems

[ArenMook]

When you target UIRoot, it just falls through to targeting the camera used to draw the UI. In your case the game view is hidden, and I'm venturing a guess that you're on a mac -- and there is a Unity bug preventing the screen size from being determinable on a retina mac. This is why the purple border is off.

Make sure you're on the latest NGUI. Open NGUITools.cs, go to line 1907 and add [System.NonSerialized] in front of it:

1. [System.NonSerialized] static Vector2 mGameSize = Vector2.one;

[gamedivisionuk]

working perfectly thank you

When you target UIRoot, it just falls through to targeting the camera used to draw the UI. In your case the game view is hidden, and I'm venturing a guess that you're on a mac -- and there is a Unity bug preventing the screen size from being determinable on a retina mac. This is why the purple border is off.

Make sure you're on the latest NGUI. Open NGUITools.cs, go to line 1907 and add [System.NonSerialized] in front of it:

1. [System.NonSerialized] static Vector2 mGameSize = Vector2.one;

[gamedivisionuk]

that victory was short lived as soon as i press play to test, it goes straight back to a huge canvas when i press stop it stays large any more ideas please its completely unusable at the moment because i can't build my UI

thank you for the help received

[gamedivisionuk]

does anyone have a permanent fix for this issue basically the fix @ArenMook gave works until you press play then it goes straight back to how it was

thanks

[ArenMook]

I wish I didn't have to work around this silly Unity bug...

Open up NGUITOols.cs, and got o line 1957:

1. #if UNITY_EDITOR_OSX
2.                                         // There seems to be a Unity 5.4 bug that returns invalid screen size when the mouse is clicked (wtf?) on OSX
3.                                         if (mGameSize.x == 1f && mGameSize.y == 1f) mGameSize = s_GetSizeOfMainGameView();
4. #else
5.                                         mGameSize = s_GetSizeOfMainGameView();
6. #endif

Try removing the #if UNITY_EDITOR_OSX section so it always retrieves the game view size like on other platforms. This was broken on OSX whith Unity 5.4 and only on retina screen devices. Try playing around with stuff there and try printing the returned value to see what it prints.

From what I remember, it was working fine until a user pressed a button, at which point the function returned a completely different value from before, which is why I #ifdef'd it out.

[gamedivisionuk]

that seems to be doing the trick so far thanks for the help

[ArenMook]

So removing the #ifdef section, leaving just mGameSize = s_GetSizeOfMainGameView(); makes it work fine, even when you hit Play and click some button?

[Eze]

I had exact same issue when I upgraded to Unity 5.5.0f3 with NGUI 3.11.0, and I can confirm that removing #ifdef section from NGUITools.cs fixed this issue.

OS: macOS 10.12.2 (with retina display).

[ArenMook]

I'm getting conflicting reports. http://www.tasharen.com/forum/index.php?topic=15023.0

[Eze]

I upgraded NGUI to the latest release - 3.11.1 and it's working as intended without necessity to change anything in NGUITools.cs.

To be clear, my issue was with UIRoot not adapting to game window when resolution was changed.

[clevekim]

I solved this problem.
I use camera for anchor.