fix: remove unnecessary warnings (#1256)

demo/src/main/java/com/google/maps/android/utils/demo/BaseDemoActivity.java

@@ -25,6 +25,8 @@
 import com.google.android.gms.maps.OnMapReadyCallback;
 import com.google.android.gms.maps.SupportMapFragment;
 
+import java.util.Objects;
+
 public abstract class BaseDemoActivity extends FragmentActivity implements OnMapReadyCallback {
     private GoogleMap mMap;
     private boolean mIsRestore;
@@ -51,7 +53,7 @@ public void onMapReady(@NonNull GoogleMap map) {
     }
 
     private void setUpMap() {
-        ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMapAsync(this);
+        ((SupportMapFragment) Objects.requireNonNull(getSupportFragmentManager().findFragmentById(R.id.map))).getMapAsync(this);
     }
 
     /**

demo/src/main/java/com/google/maps/android/utils/demo/HeatmapsPlacesDemoActivity.java

@@ -115,7 +115,7 @@ public enum HeatmapColors {
     /**
      * Stores the TileOverlay corresponding to each of the keywords that have been searched for.
      */
-    private Hashtable<String, TileOverlay> mOverlays = new Hashtable<String, TileOverlay>();
+    private Hashtable<String, TileOverlay> mOverlays = new Hashtable<>();
 
     /**
      * A layout containing checkboxes for each of the heatmaps rendered.

demo/src/main/java/com/google/maps/android/utils/demo/KmlDemoActivity.java

@@ -140,9 +140,7 @@ private class LoadLocalKmlFile extends AsyncTask<String, Void, KmlLayer> {
         protected KmlLayer doInBackground(String... strings) {
             try {
                 return new KmlLayer(mMap, mResourceId, KmlDemoActivity.this);
-            } catch (XmlPullParserException e) {
-                e.printStackTrace();
-            } catch (IOException e) {
+            } catch (XmlPullParserException | IOException e) {
                 e.printStackTrace();
             }
             return null;

demo/src/main/java/com/google/maps/android/utils/demo/MultiLayerDemoActivity.java

@@ -117,9 +117,7 @@ protected void startDemo(boolean isRestore) {
             kmlPolygonLayer.setOnFeatureClickListener(feature -> Toast.makeText(MultiLayerDemoActivity.this,
                     "KML polygon clicked: " + feature.getProperty("name"),
                     Toast.LENGTH_SHORT).show());
-        } catch (XmlPullParserException e) {
-            e.printStackTrace();
-        } catch (IOException e) {
+        } catch (XmlPullParserException | IOException e) {
             e.printStackTrace();
         }
 

demo/src/main/java/com/google/maps/android/utils/demo/MyItemReader.java

@@ -37,7 +37,7 @@ public class MyItemReader {
     private static final String REGEX_INPUT_BOUNDARY_BEGINNING = "\\A";
 
     public List<MyItem> read(InputStream inputStream) throws JSONException {
-        List<MyItem> items = new ArrayList<MyItem>();
+        List<MyItem> items = new ArrayList<>();
         String json = new Scanner(inputStream).useDelimiter(REGEX_INPUT_BOUNDARY_BEGINNING).next();
         JSONArray array = new JSONArray(json);
         for (int i = 0; i < array.length(); i++) {

demo/src/main/java/com/google/maps/android/utils/demo/StreetViewDemoActivity.kt

@@ -19,11 +19,17 @@ class StreetViewDemoActivity : Activity() {
 
         GlobalScope.launch(Dispatchers.Main) {
             val response1 =
-                StreetViewUtils.fetchStreetViewData(LatLng(48.1425918, 11.5386121), BuildConfig.MAPS_API_KEY)
-            val response2 = StreetViewUtils.fetchStreetViewData(LatLng(8.1425918, 11.5386121), BuildConfig.MAPS_API_KEY)
+                StreetViewUtils.fetchStreetViewData(
+                    LatLng(48.1425918, 11.5386121),
+                    BuildConfig.MAPS_API_KEY
+                )
+            val response2 = StreetViewUtils.fetchStreetViewData(
+                LatLng(8.1425918, 11.5386121),
+                BuildConfig.MAPS_API_KEY
+            )
 
-            findViewById<TextView>(R.id.textViewFirstLocation).text = "Location 1 is supported in StreetView: $response1"
-            findViewById<TextView>(R.id.textViewSecondLocation).text = "Location 2 is  supported in StreetView: $response2"
+            findViewById<TextView>(R.id.textViewFirstLocation).text = getString(R.string.location_1_is_supported_in_streetview, response1)
+            findViewById<TextView>(R.id.textViewSecondLocation).text = getString(R.string.location_1_is_supported_in_streetview, response2)
         }
     }
 }

demo/src/main/java/com/google/maps/android/utils/demo/ZoomClusteringDemoActivity.java

@@ -156,7 +156,7 @@ protected boolean shouldRenderAsCluster(@NonNull Cluster<MyItem> cluster) {
          * certain zoom level and as a marker below a certain zoom level <i>even if the contents of
          * the clusters themselves did not change</i>. In this case, we need to override this method
          * to implement this new optimization behavior.
-         *
+         * <p>
          * Note that always returning true from this method could potentially have negative
          * performance implications as clusters will be re-rendered on each pass even if they don't
          * change.

demo/src/main/res/values/strings.xml

@@ -33,4 +33,6 @@
     <string name="button_radius">Radius</string>
     <string name="button_gradient">Gradient</string>
     <string name="button_opacity">Opacity</string>
+    <string name="location_1_is_supported_in_streetview">Location 1 is supported in StreetView: %1$s</string>
+    <string name="go">Go</string>
 </resources>