calling setSystemUiVisibility

Hi,

On Ice Cream Sandwich there is a set of on-screen controls which are always there stealing screen space even when inside a fullscreen game. They can be made to be less obtrusive by setting the view's ui visibility to "low profile mode", like this:

Code (csharp):

1.  
2. getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);
3.  

My question is; how can I do this from within Unity? I've looked at AndroidJavaClass and AndroidJavaObject but it's not clear to me how (or if) I can get reference to the correct view instance like above.

 

I got a bit of help on this one, thanks Erik!

The buildVersion check makes my device crash, not sure what went wrong there, so I took it out. I need to test it on a <11 device.

Code (csharp):

1. using UnityEngine;
2.  
3. public class ICSDim : MonoBehaviour
4. {
5. #if UNITY_ANDROID  !UNITY_EDITOR
6.  
7.     void Start()
8.     {
9.         Dim();
10.     }
11.    
12.     void OnApplicationFocus(bool focus)
13.     {
14.         if (focus)
15.         {
16.             Dim();
17.         }
18.     }
19.  
20.     private void Dim()
21.     {
22.         //var buildVersion = new AndroidJavaClass("android.os.Build.VERSION");
23.         //if (buildVersion.GetStatic<int>("SDK_INT") >= 11)
24.         {
25.             using (var unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
26.             {
27.                 using (var activity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity"))
28.                 {
29.                     activity.Call("runOnUiThread", new AndroidJavaRunnable(DimRunable));
30.                 }
31.             }
32.         }
33.     }
34.  
35.     public static void DimRunable()
36.     {
37.         using (var unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
38.         {
39.             using (var activity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity"))
40.             {
41.                 using (var window = activity.Call<AndroidJavaObject>("getWindow"))
42.                 {
43.                     using (var view = window.Call<AndroidJavaObject>("getDecorView"))
44.                     {
45.                         const int SYSTEM_UI_FLAG_LOW_PROFILE = 1;
46.  
47.                         view.Call("setSystemUiVisibility", SYSTEM_UI_FLAG_LOW_PROFILE);
48.                     }
49.                 }
50.             }
51.         }
52.     }
53.  
54. #endif //UNITY_ANDROID  !UNITY_EDITOR
55. }
56.  

 

It's not pretty, but it doesn't crash pre 11

Code (csharp):

1. E/Unity   ( 9086): getMethodID("setSystemUiVisibility", "(I)V") FAILED!
2.  
3. D/dalvikvm( 9086): GetMethodID: method not found: Lcom/android/internal/policy/impl/PhoneWindow$DecorView;.setSystemUiVisibility:(I)V
4.  
5. I/Unity   ( 9086): JNI: Unable to find method id for 'setSystemUiVisibility'
6.  
7. I/Unity   ( 9086):  
8.  
9. I/Unity   ( 9086): (Filename: ./Runtime/ExportGenerated/AndroidManaged/UnityEngineDebug.cpp Line: 43)
10.  
11. I/Unity   ( 9086):
12.  

 

Thanks for posting this!! This works for me on SONY Xperia SP

 

It is built in to Unity 4 and up

 

Hey, I know this is an old thread, but if anyone can help me out that would be great.

Using DanTreble's code gave me this error:
I/Unity (30153): Exception: No such proxy method: UnityEngine.AndroidJavaRunnableProxy.run()
I/Unity (30153): at UnityEngine.AndroidJavaProxy.Invoke (System.String methodName, System.Object[] args) [0x00000] in <filename unknown>:0
I/Unity (30153): at UnityEngine.AndroidJavaProxy.Invoke (System.String methodName, UnityEngine.AndroidJavaObject[] javaArgs) [0x00000] in <filename unknown>:0
I/Unity (30153): at UnityEngine._AndroidJNIHelper.InvokeJavaProxyMethod (UnityEngine.AndroidJavaProxy proxy, IntPtr jmethodName, IntPtr jargs) [0x00000] in <filename unknown>:0

However, calling the setSystemUiVisibility directly (without running it on the UI thread) worked, but I got an exception that it shouldn't be called from the Unity thread and the game got stuck.

Any ideas?

 

Can you use Screen.SetResolution ? It has SYSTEM_UI_FLAG_LOW_PROFILE support when you use fullscreen flag.
https://docs.unity3d.com/Documentation/ScriptReference/Screen.SetResolution.html

 

rejwan1 ,I have the same problem as you,How did you to solve the problem?