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Created attachment 8368 [details]
When launching a Forms app with a MasterDetailPage to an iPad in Landscape, the Master page is shown as expected without a Navigation item in the Navigation bar, as expected. When you rotate to portrait the Master page is hidden as expected but the Navigation item to open the Master page is still not shown so the only way to open the Master page is with a swipe. When launching in Portrait the Navigation item that opens the Master page is shown, but is still shown when rotated to Landscape even though it is now not necessary as the Master page is open in landscape mode.
## Steps to reproduce
1. Open attached test project and restore packages.
2. Set the iOS project as the startup project and launch to an iPad simulator (I used an iPad Retina 8.0 simulator).
3. Rotate the device to landscape
Expected result: The Navigation item "Master Page" will disappear in Landscape.
Actual result: The Navigation item "Master Page" is still visible.
4. Stop debugging and relaunch to the iPad in Landscape orientation.
5. Note that there is no Navigation item "Master Page" as expected.
6. Rotate device to Portrait.
Expected result: The Navigation item "Master Page" will appear in Portrait.
Actual result: The Navigation item "Master Page" is not visible in Portrait.
In native iOS apps using a SplitViewController, I do know that you have to manually handle adding and removing the Navigation item on rotation so I suspect this is not being done by forms.
I have checked this issue, And I am able to reproduce this To reproduce this issue I have followed steps defined in the bug description.
=== Xamarin Studio ===
Version 5.5 (build 227)
Installation UUID: 1a096c6f-0678-402e-89b2-a2c10f7e80e4
Mono 3.10.0 ((detached/47db868)
GTK+ 2.24.23 (Raleigh theme)
Package version: 310000019
=== Apple Developer Tools ===
Xcode 6.0.1 (6528)
=== Xamarin.iOS ===
Version: 126.96.36.199 (Business Edition)
Build date: 2014-10-03 00:25:37-0400
=== Xamarin.Android ===
Version: 4.18.0 (Business Edition)
Android SDK: /Users/360_macmini/Desktop/android-sdk-macosx
Supported Android versions:
2.1 (API level 7)
2.2 (API level 8)
2.3 (API level 10)
3.1 (API level 12)
3.2 (API level 13)
4.0 (API level 14)
4.0.3 (API level 15)
4.1 (API level 16)
4.2 (API level 17)
4.3 (API level 18)
4.4 (API level 19)
4.4.87 (API level 20)
Java SDK: /usr
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)
=== Xamarin.Mac ===
Version: 188.8.131.52 (Business Edition)
=== Build Information ===
Release ID: 505000227
Git revision: 7b721eeec7a2fa4c4f4de0ecd2aed4dc25edac95
Build date: 2014-10-02 15:53:38-04
Xamarin addins: 99ed56b428b31eba1efaace4d82188d6f334e6ca
=== Operating System ===
Mac OS X 10.9.4
Darwin ShrutiMac.local 13.3.0 Darwin Kernel Version 13.3.0
Tue Jun 3 21:27:35 PDT 2014
Thank you for taking the time to submit this report. After reviewing the description of this bug, we no longer believe it affects the current version of Xamarin.Forms. If you are still experiencing the issue after updating your packages, please reopen this report with an attached reproduction.
For your convenience, we have created some reproduction best practices viewable here: https://gist.github.com/jassmith/92405c300e54a01dcc6d
Xamarin Forms Team