fix(android): interface orientation value changes even with auto rotation off (#7)

Author: gladiuscode

android/src/main/java/com/orientationdirector/implementation/OrientationAutoRotationObserver.kt

@@ -0,0 +1,45 @@
+package com.orientationdirector.implementation
+
+import android.database.ContentObserver
+import android.os.Handler
+import android.provider.Settings
+import android.util.Log
+import com.facebook.react.bridge.ReactContext
+
+class OrientationAutoRotationObserver(val context: ReactContext, handler: Handler?) : ContentObserver(handler) {
+  private var lastAutoRotationStatus: Boolean = isAutoRotationEnabled()
+
+  fun getLastAutoRotationStatus(): Boolean {
+    return lastAutoRotationStatus
+  }
+
+  override fun onChange(selfChange: Boolean) {
+    super.onChange(selfChange)
+    val status = isAutoRotationEnabled()
+    lastAutoRotationStatus = status
+  }
+
+  fun enable() {
+    context.contentResolver.registerContentObserver(
+      Settings.System.getUriFor(Settings.System.ACCELEROMETER_ROTATION),
+      true,
+      this,
+    )
+  }
+
+  fun disable() {
+    context.contentResolver.unregisterContentObserver(this)
+  }
+
+  private fun isAutoRotationEnabled(): Boolean {
+    return try {
+      Settings.System.getInt(context.contentResolver, Settings.System.ACCELEROMETER_ROTATION) == 1;
+    } catch (ex: Settings.SettingNotFoundException) {
+      false
+    }
+  }
+
+  companion object {
+    const val NAME = "AutoRotationObserver"
+  }
+}

android/src/main/java/com/orientationdirector/implementation/OrientationDirectorImpl.kt

@@ -1,12 +1,20 @@
 package com.orientationdirector.implementation
 
 import android.content.pm.ActivityInfo
+import android.os.Handler
+import android.os.Looper
+import android.util.Log
 import com.facebook.react.bridge.ReactApplicationContext
 
 class OrientationDirectorImpl internal constructor(private val context: ReactApplicationContext) {
   private var mUtils = OrientationDirectorUtilsImpl(context)
   private var mEventEmitter = OrientationEventManager(context)
   private var mSensorListener = OrientationSensorListener(context)
+  private var mAutoRotationObserver = OrientationAutoRotationObserver(
+    context, Handler(
+      Looper.getMainLooper()
+    )
+  )
   private var mLifecycleListener = OrientationLifecycleListener()
 
   private var initialSupportedInterfaceOrientations = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
@@ -27,19 +35,25 @@ class OrientationDirectorImpl internal constructor(private val context: ReactApp
       mSensorListener.disable()
     }
 
+    mAutoRotationObserver.enable()
+
     context.addLifecycleEventListener(mLifecycleListener)
     mLifecycleListener.setOnHostResumeCallback {
       if (mSensorListener.canDetectOrientation()) {
         mSensorListener.enable()
       }
+
+      mAutoRotationObserver.enable()
     }
     mLifecycleListener.setOnHostPauseCallback {
       if (initialized) {
         mSensorListener.disable()
+        mAutoRotationObserver.disable()
       }
     }
     mLifecycleListener.setOnHostDestroyCallback {
       mSensorListener.disable()
+      mAutoRotationObserver.disable()
     }
 
     initialSupportedInterfaceOrientations =
@@ -106,6 +120,10 @@ class OrientationDirectorImpl internal constructor(private val context: ReactApp
   }
 
   private fun adaptInterfaceTo(deviceOrientation: Orientation) {
+    if (!mAutoRotationObserver.getLastAutoRotationStatus()) {
+      return
+    }
+
     if (isLocked) {
       return
     }

android/src/main/java/com/orientationdirector/implementation/OrientationDirectorUtilsImpl.kt

@@ -3,6 +3,7 @@ package com.orientationdirector.implementation
 import android.content.Context
 import android.content.pm.ActivityInfo
 import android.os.Build
+import android.provider.Settings
 import android.view.Surface
 import android.view.WindowManager
 import com.facebook.react.bridge.ReactContext