From review - do not export broadcast receivers in LockScreenManager and SDLLockScreenActivity

Author: JulianKast

android/sdl_android/src/main/java/com/smartdevicelink/managers/lockscreen/LockScreenManager.java

@@ -57,6 +57,7 @@
 import com.smartdevicelink.proxy.rpc.enums.PredefinedWindows;
 import com.smartdevicelink.proxy.rpc.enums.RequestType;
 import com.smartdevicelink.proxy.rpc.listeners.OnRPCNotificationListener;
+import com.smartdevicelink.util.AndroidTools;
 import com.smartdevicelink.util.DebugTool;
 
 import java.lang.ref.WeakReference;
@@ -333,11 +334,9 @@ private void launchLockScreenActivity() {
             // pass in icon, background color, and custom view
             if (lockScreenEnabled && isApplicationForegrounded && context.get() != null) {
                 if (isLockscreenDismissible && !lockscreenDismissReceiverRegistered) {
-                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
-                        context.get().registerReceiver(mLockscreenDismissedReceiver, new IntentFilter(SDLLockScreenActivity.KEY_LOCKSCREEN_DISMISSED), Context.RECEIVER_EXPORTED);
-                    } else {
-                        context.get().registerReceiver(mLockscreenDismissedReceiver, new IntentFilter(SDLLockScreenActivity.KEY_LOCKSCREEN_DISMISSED));
-                    }
+                    AndroidTools.registerReceiver(context.get(), mLockscreenDismissedReceiver,
+                            new IntentFilter(SDLLockScreenActivity.KEY_LOCKSCREEN_DISMISSED),
+                            Context.RECEIVER_NOT_EXPORTED);
                     lockscreenDismissReceiverRegistered = true;
                 }
                 LockScreenStatus status = getLockScreenStatus();

android/sdl_android/src/main/java/com/smartdevicelink/managers/lockscreen/SDLLockScreenActivity.java

@@ -53,6 +53,7 @@
 import android.widget.TextView;
 
 import com.smartdevicelink.R;
+import com.smartdevicelink.util.AndroidTools;
 
 public class SDLLockScreenActivity extends Activity {
 
@@ -106,11 +107,8 @@ protected void onCreate(Bundle savedInstanceState) {
         lockscreenFilter.addAction(CLOSE_LOCK_SCREEN_ACTION);
         lockscreenFilter.addAction(LOCKSCREEN_DEVICE_LOGO_DOWNLOADED);
         // register broadcast receivers
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
-            registerReceiver(lockScreenBroadcastReceiver, lockscreenFilter, RECEIVER_EXPORTED);
-        } else {
-            registerReceiver(lockScreenBroadcastReceiver, lockscreenFilter);
-        }
+        AndroidTools.registerReceiver(this, lockScreenBroadcastReceiver, lockscreenFilter,
+                RECEIVER_NOT_EXPORTED);
     }
 
     @Override