In VideoStreamManager, Added two list to hold hmi Levels

In VideoStreamManager, Added two list:
streamableLevels to hold hmi Levels that allow videoStreaming
nonStreamableLevels to hold hmi levels that do not allow streaming
Changed logic in class to use new list to check hmi states

Author: Julian Kast

android/sdl_android/src/main/java/com/smartdevicelink/managers/video/VideoStreamManager.java

@@ -73,7 +73,9 @@
 import com.smartdevicelink.util.Version;
 
 import java.lang.ref.WeakReference;
+import java.lang.reflect.Array;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.FutureTask;
@@ -95,6 +97,8 @@ public class VideoStreamManager extends BaseVideoStreamManager {
 	private IVideoStreamListener streamListener;
 	private boolean isTransportAvailable = false;
 	private boolean hasStarted;
+	private List<HMILevel> streamableLevels = new ArrayList<>(Arrays.asList(HMILevel.HMI_FULL, HMILevel.HMI_LIMITED));
+	private List<HMILevel> nonStreamableLevels = new ArrayList<>(Arrays.asList(HMILevel.HMI_NONE, HMILevel.HMI_BACKGROUND));
 
 	// INTERNAL INTERFACES
 
@@ -151,10 +155,10 @@ public void onNotified(RPCNotification notification) {
 				}
 				HMILevel prevHMILevel = hmiLevel;
 				hmiLevel = onHMIStatus.getHmiLevel();
-				if(hmiLevel.equals(HMILevel.HMI_FULL)){
+				if (streamableLevels.contains(hmiLevel)) {
 					checkState();
 				}
-				if (hasStarted && (prevHMILevel == HMILevel.HMI_FULL || prevHMILevel == HMILevel.HMI_LIMITED) && (hmiLevel == HMILevel.HMI_NONE || hmiLevel == HMILevel.HMI_BACKGROUND)){
+				if (hasStarted && (streamableLevels.contains(prevHMILevel)) && (nonStreamableLevels.contains(hmiLevel))) {
 					internalInterface.stopVideoService();
 				}
 			}
@@ -205,7 +209,7 @@ private synchronized void checkState(){
 		if(this.getState() == SETTING_UP
 				&& isTransportAvailable
 				&& hmiLevel != null
-				&& (hmiLevel.equals(HMILevel.HMI_FULL) || hmiLevel.equals(HMILevel.HMI_LIMITED))
+				&& streamableLevels.contains(hmiLevel)
 				&& parameters != null){
 			stateMachine.transitionToState(StreamingStateMachine.READY);
 			transitionToState(READY);
@@ -303,7 +307,7 @@ public void onError(String info) {
 	 */
 	protected void startStreaming(VideoStreamingParameters parameters, boolean encrypted){
 		this.parameters = parameters;
-		if(hmiLevel != HMILevel.HMI_FULL && hmiLevel != HMILevel.HMI_LIMITED){
+		if (nonStreamableLevels.contains(hmiLevel)) {
 			Log.e(TAG, "Cannot start video service if HMILevel is not FULL or LIMITED.");
 			return;
 		}
@@ -399,15 +403,15 @@ public boolean isServiceActive(){
 	 * @return boolean (true = yes, false = no)
 	 */
 	public boolean isStreaming(){
-		return (stateMachine.getState() == StreamingStateMachine.STARTED) && (hmiLevel == HMILevel.HMI_FULL);
+		return (stateMachine.getState() == StreamingStateMachine.STARTED) && (streamableLevels.contains(hmiLevel));
 	}
 
 	/**
 	 * Check if video streaming has been paused due to app moving to background or manually stopped
 	 * @return boolean (true = not paused, false = paused)
 	 */
 	public boolean isPaused(){
-		return (hasStarted && stateMachine.getState() == StreamingStateMachine.STOPPED) || (hmiLevel != HMILevel.HMI_FULL);
+		return (hasStarted && stateMachine.getState() == StreamingStateMachine.STOPPED) || (nonStreamableLevels.contains(hmiLevel));
 	}
 
 	/**