Create new thread on search and show progress bar

Listify/app/src/main/java/com/example/listify/SearchResults.java

@@ -9,6 +9,7 @@ import android.widget.EditText;
 import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.ListView;
+import android.widget.ProgressBar;
 import android.widget.SearchView;
 import com.example.listify.adapter.SearchResultsListAdapter;
 import com.example.listify.data.ItemSearch;
@@ -23,7 +24,7 @@ import java.util.Properties;
 import static com.example.listify.MainActivity.am;
 
 public class SearchResults extends AppCompatActivity implements SortDialogFragment.OnSortingListener, Requestor.Receiver {
-    private ListView listView;
+    private ProgressBar loadingSearch;
     private SearchResultsListAdapter searchResultsListAdapter;
     private List<Product> resultsProductList = new ArrayList<>();
     private List<Product> resultsProductListSorted = new ArrayList<>();
@@ -31,6 +32,7 @@ public class SearchResults extends AppCompatActivity implements SortDialogFragme
     private int storeSelection;
     private int sortMode;
     private boolean descending;
+    boolean doneLoading = false;
 
     @Override
     public void sendSort(int storeSelection, int sortMode, boolean descending) {
@@ -47,6 +49,8 @@ public class SearchResults extends AppCompatActivity implements SortDialogFragme
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
 
+        loadingSearch = (ProgressBar) findViewById(R.id.progress_loading_search);
+
         // Back button closes this activity and returns to previous activity (MainActivity)
         ImageButton backButton = (ImageButton) findViewById(R.id.backToHomeButton);
         backButton.setOnClickListener(new View.OnClickListener() {
@@ -77,7 +81,7 @@ public class SearchResults extends AppCompatActivity implements SortDialogFragme
             }
         });
 
-        listView = (ListView) findViewById(R.id.search_results_list);
+        ListView listView = (ListView) findViewById(R.id.search_results_list);
         searchResultsListAdapter = new SearchResultsListAdapter(this, resultsProductListSorted);
         listView.setAdapter(searchResultsListAdapter);
         listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@@ -96,7 +100,15 @@ public class SearchResults extends AppCompatActivity implements SortDialogFragme
         searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
             @Override
             public boolean onQueryTextSubmit(String query) {
+                // Show progress bar
+                loadingSearch.setVisibility(View.VISIBLE);
+                Thread t = new Thread(new Runnable() {
+                    @Override
+                    public void run() {
                         doSearch(query);
+                    }
+                });
+                t.start();
                 return false;
             }
 
@@ -122,12 +134,8 @@ public class SearchResults extends AppCompatActivity implements SortDialogFragme
                 sortDialog.show(getSupportFragmentManager(), "Sort");
             }
         });
-
     }
 
-
-
-
     // Override default phone back button to add animation
     @Override
     public void onBackPressed() {
@@ -136,10 +144,13 @@ public class SearchResults extends AppCompatActivity implements SortDialogFragme
     }
 
     private void doSearch(String query) {
-
         // Clear the old search results
         resultsProductList.clear();
 
+        // Clear old search results from the view
+        resultsProductListSorted.clear();
+        searchResultsListAdapter.notifyDataSetChanged();
+
         Properties configs = new Properties();
         try {
             configs = AuthManager.loadProperties(this, "android.resource://" + getPackageName() + "/raw/auths.json");
@@ -178,7 +189,6 @@ public class SearchResults extends AppCompatActivity implements SortDialogFragme
                 });
                 break;
 
-            // TODO: May need to change this depending on if price is stored as a string or a double
             case 2:
                 resultsProductListSorted.sort(new Comparator<Product>() {
                     @Override
@@ -238,7 +248,13 @@ public class SearchResults extends AppCompatActivity implements SortDialogFragme
         runOnUiThread(new Runnable() {
             @Override
             public void run() {
+                if (doneLoading) {
+                    doneLoading = false;
                     searchResultsListAdapter.notifyDataSetChanged();
+
+                    // Hide progress bar
+                    loadingSearch.setVisibility(View.GONE);
+                }
             }
         });
     }
@@ -280,5 +296,7 @@ public class SearchResults extends AppCompatActivity implements SortDialogFragme
 
         // Apply selected sorting to the list
         sortResults();
+
+        doneLoading = true;
     }
 }

Listify/app/src/main/res/layout/content_search_results.xml

@@ -12,6 +12,16 @@
     tools:context=".SearchResults"
     tools:showIn="@layout/activity_search_results">
 
+    <ProgressBar
+        android:id="@+id/progress_loading_search"
+        style="?android:attr/progressBarStyleLarge"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerHorizontal="true"
+        android:layout_centerVertical="true"
+        android:indeterminate="true"
+        android:visibility="gone"/>
+
     <ListView
         android:id="@+id/search_results_list"
         android:layout_width="fill_parent"