Prevent the load of the slice again if it is already

in the cache.

loadSlice just fills Slice read from the DB into a
map, if there is already such slice in the map, we
could skip the async load process.

Change-Id: I6e96ef72a9dc5a833ae158492134f4a6c94a7465
Bug: 249101421
Test: robotest

src/com/android/settings/slices/SettingsSliceProvider.java

@@ -385,6 +385,10 @@ public class SettingsSliceProvider extends SliceProvider {
 
     @VisibleForTesting
     void loadSlice(Uri uri) {
+        if (mSliceWeakDataCache.containsKey(uri)) {
+            Log.d(TAG, uri + " loaded from cache");
+            return;
+        }
         long startBuildTime = System.currentTimeMillis();
 
         final SliceData sliceData;