Refactoring

app/src/main/java/eu/faircode/email/Helper.java

@@ -422,13 +422,14 @@ public class Helper {
     }
 
     static Boolean isIgnoringOptimizations(Context context) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M)
-            PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
+            return null;
-            if (pm == null)
+
-                return null;
+        PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
-            return pm.isIgnoringBatteryOptimizations(BuildConfig.APPLICATION_ID);
+        if (pm == null)
-        }
+            return null;
-        return null;
+
+        return pm.isIgnoringBatteryOptimizations(BuildConfig.APPLICATION_ID);
     }
 
     static Integer getBatteryLevel(Context context) {