Fix mRequiredPersmission not present on SDK < 20

(Prepare hotfix v1.32)

Author: frazew

app/build.gradle

@@ -8,8 +8,8 @@ android {
         applicationId "fr.frazew.virtualgyroscope"
         minSdkVersion 16
         targetSdkVersion 23
-        versionCode 131
-        versionName "1.31"
+        versionCode 132
+        versionName "1.32"
     }
     buildTypes {
         release {

app/src/main/java/fr/frazew/virtualgyroscope/hooks/SystemSensorManagerHook.java

@@ -41,7 +41,7 @@ public static List<Object> fillSensorLists(ArrayList<Sensor> fullSensorList, Spa
         XposedHelpers.findField(Sensor.class, "mMinDelay").setAccessible(true);
         XposedHelpers.findField(Sensor.class, "mMaxRange").setAccessible(true);
         if (Build.VERSION.SDK_INT > 19) XposedHelpers.findField(Sensor.class, "mStringType").setAccessible(true);
-        XposedHelpers.findField(Sensor.class, "mRequiredPermission").setAccessible(true);
+        if (Build.VERSION.SDK_INT > 19) XposedHelpers.findField(Sensor.class, "mRequiredPermission").setAccessible(true);
 
         for (int i = 0; i < XposedMod.sensorsToEmulate.size(); i++) {
             SensorModel model = XposedMod.sensorsToEmulate.valueAt(i);
@@ -59,7 +59,7 @@ public static List<Object> fillSensorLists(ArrayList<Sensor> fullSensorList, Spa
                 if (model.maxRange != -1)
                     XposedHelpers.setObjectField(s, "mMaxRange", model.maxRange);
 
-                if (!model.permission.equals("none"))
+                if (!model.permission.equals("none") && Build.VERSION.SDK_INT > 19)
                     XposedHelpers.setObjectField(s, "mRequiredPermission", model.permission);
 
                 fullSensorList.add(s);