UE4 Android Screen Orientation

https://answers.unrealengine.com/questions/789383/how-do-i-switch-from-a-landscape-widget-to-portrai.html?sort=oldest 

how do I switch from a landscape widget to portrait via Blueprint - UE4 AnswerHub

This is going to be a little bit complicated as unreal engine 4 does not support orientation change via blueprint by default. You will need the Mobile Utils plugin by gameDNA

NOTE - This code is not perfect. I have been trying to extend android functionality using this plugin however the code is not refined. Follow these instructions to the last letter. I am not that good with C++ yet, you might have to change some code according to your need here and there.

This was done in quite a rush and I never got back to it.

1. Find the file MobileUtils_APL in that and add this code -
   1. public boolean AndroidThunkJava_ToggleOrientation()
   2. {
   3. boolean result=false;
   4. int orientation=getResources().getConfiguration().orientation;
   5. if(orientation==Configuration.ORIENTATION_PORTRAIT){
   6. setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
   7. result=true;
   8. }
   9. else if(orientation==Configuration.ORIENTATION_LANDSCAPE)
   10. {
   11. setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
   12. result=false;
   13. }
   14. return result;
   15. }
   16.  
2. in Plugins\MobileUtils-master\Source\MobileUtils\Classes\Interfaces\MobileUtilsInterface.h - add this
3. virtual bool ToggleOrientation() = 0;
4. in Plugins\MobileUtils-master\Source\MobileUtils\Classes\MobileUtilsBlueprintLibrary.h
   1. UFUNCTION(BlueprintCallable, Category = MobileUtils)
   2. static bool ToggleOrientation();
   3.  
5. In Plugins\MobileUtils-master\Source\MobileUtils\Private\Android\MobileUtilsPlatform.cpp

First Add this -

1. jmethodID FMobileUtilsPlatform::ToggleOrientationMethod;
2.  

Then inside the constructor -

1. FMobileUtilsPlatform::FMobileUtilsPlatform()
2. {
3. if (JNIEnv* Env = FAndroidApplication::GetJavaEnv())
4. {
5. ToggleOrientationMethod = FJavaWrapper::FindMethod(Env, FJavaWrapper::GameActivityClassID, "AndroidThunkJava_ToggleOrientation", "()Z", false);
6. }
7. }
8.  

Then the method implementatio -

1. bool FMobileUtilsPlatform::ToggleOrientation()
2. {
3. bool tResult = false;
4. if (JNIEnv* Env = FAndroidApplication::GetJavaEnv())
5. {
6. tResult = FJavaWrapper::CallBooleanMethod(Env, FJavaWrapper::GameActivityThis, FMobileUtilsPlatform::ToggleOrientationMethod);
7. }
8. return tResult;
9. }
10.  

1. Now go to Plugins\MobileUtils-master\Source\MobileUtils\Private\Android\MobileUtilsPlatform.h

add the signatures of the method -

virtual bool ToggleOrientation() override;

static jmethodID ToggleOrientationMethod;

1. Now in Plugins\MobileUtils-master\Source\MobileUtils\Private\MobileUtilsBlueprintLibrary.cpp
2. bool UMobileUtilsBlueprintLibrary::ToggleOrientation() { #if PLATFORM_ANDROID || PLATFORM_IOS return IMobileUtils::Get().GetPlatformInterface()->ToggleOrientation(); #else return false; #endif }

Save and compile.

Now in blueprint you should have a method called "Toggle Orientation" if everything is done right -

 

 

1. import android.net.ConnectivityManager;
2. import android.net.NetworkInfo;
3. import com.google.android.gms.common.ConnectionResult;
4. import android.telephony.TelephonyManager;
5. import android.provider.Settings.Secure;
6. import android.net.wifi.WifiManager;
7. import java.security.MessageDigest;
8. import java.security.NoSuchAlgorithmException;
9. import android.content.pm.ActivityInfo;

유틸 깃허브

https://github.com/gameDNAstudio/MobileUtils

gameDNAstudio/MobileUtils

 

4.23.0 버전이 마지막이라 실행시 경고가 떠서 

플러그인 파일 수정

MobileUtils.uplugin

 

버전을 4.26.0 으로 변경함 

4.23.0 이상이면 정상동작 하는듯