[Android] Add DeX mode detection

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Wed Feb 21 10:28:59 2018 +0100| [6750db189c7249e017270804f775a242c7e42203] | committer: Geoffrey Métais

Add DeX mode detection

> https://code.videolan.org/videolan/vlc-android/commit/6750db189c7249e017270804f775a242c7e42203
---

 vlc-android/src/org/videolan/vlc/util/AndroidDevices.java | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/vlc-android/src/org/videolan/vlc/util/AndroidDevices.java b/vlc-android/src/org/videolan/vlc/util/AndroidDevices.java
index f696fa846..4f4d65580 100644
--- a/vlc-android/src/org/videolan/vlc/util/AndroidDevices.java
+++ b/vlc-android/src/org/videolan/vlc/util/AndroidDevices.java
@@ -24,6 +24,7 @@ import android.annotation.TargetApi;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.pm.PackageManager;
+import android.content.res.Configuration;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Build.VERSION_CODES;
@@ -228,6 +229,18 @@ public class AndroidDevices {
         return false;
     }
 
+    public static boolean isDex(Context ctx) {
+        if (!AndroidUtil.isNougatOrLater) return false;
+        try {
+            final Configuration config = ctx.getResources().getConfiguration();
+            final Class configClass = config.getClass();
+            return configClass.getField("SEM_DESKTOP_MODE_ENABLED").getInt(configClass)
+                    == configClass.getField("semDesktopModeEnabled").getInt(config);
+        } catch(Exception ignored) {
+            return false;
+        }
+    }
+
     public static class MediaFolders {
         public final static File EXTERNAL_PUBLIC_MOVIES_DIRECTORY_FILE = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
         public final static File EXTERNAL_PUBLIC_MUSIC_DIRECTORY_FILE = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC);