Add history for search

Gets deleted with all events from settings

app/src/main/java/com/akdev/nofbeventscraper/MainActivity.java

@@ -12,6 +12,8 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
+import android.widget.ArrayAdapter;
+import android.widget.AutoCompleteTextView;
 
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.view.menu.MenuBuilder;
@@ -23,13 +25,13 @@ import androidx.recyclerview.widget.RecyclerView;
 import com.google.android.material.appbar.AppBarLayout;
 import com.google.android.material.appbar.CollapsingToolbarLayout;
 import com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton;
-import com.google.android.material.textfield.TextInputEditText;
 import com.google.android.material.textfield.TextInputLayout;
 import com.google.gson.Gson;
 import com.google.gson.reflect.TypeToken;
 
 import java.lang.ref.WeakReference;
 import java.lang.reflect.Type;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
 
@@ -40,7 +42,7 @@ import static com.akdev.nofbeventscraper.FbEvent.createEventList;
 public class MainActivity extends AppCompatActivity {
 
     protected ExtendedFloatingActionButton paste_button;
-    protected TextInputEditText edit_text_uri_input;
+    protected AutoCompleteTextView edit_text_uri_input;
     protected TextInputLayout layout_uri_input;
 
 
@@ -49,6 +51,28 @@ public class MainActivity extends AppCompatActivity {
     EventAdapter adapter;
     LinearLayoutManager linear_layout_manager;
 
+    List<String> history;
+    ArrayAdapter<String> history_adapter;
+
+
+    private List<String> getHistory() {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
+
+        Gson gson = new Gson();
+        String json = prefs.getString("history", "");
+
+        Type history_type = new TypeToken<List<String>>() {
+        }.getType();
+        List<String> list = gson.fromJson(json, history_type);
+
+        if (list == null) {
+            list = new ArrayList<>();
+        }
+
+        return list;
+    }
+
+
     private List<FbEvent> getSavedEvents() {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 
@@ -81,6 +105,12 @@ public class MainActivity extends AppCompatActivity {
             adapter.notifyDataSetChanged();
         }
 
+        if (getHistory().isEmpty()) {
+            history.clear();
+            history_adapter.clear();
+            adapter.notifyDataSetChanged();
+        }
+
         /*
          * Intent from IntentReceiver - read only once
          */
@@ -106,6 +136,9 @@ public class MainActivity extends AppCompatActivity {
         Gson gson = new Gson();
         String json = gson.toJson(events);
         prefs_edit.putString("events", json);
+
+        json = gson.toJson(history);
+        prefs_edit.putString("history", json);
         prefs_edit.apply();
     }
 
@@ -132,6 +165,10 @@ public class MainActivity extends AppCompatActivity {
         linear_layout_manager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
         recycler_view.setLayoutManager(linear_layout_manager);
 
+        // restore history
+        this.history = getHistory();
+        history_adapter = new ArrayAdapter<>(this, android.R.layout.simple_expandable_list_item_1, history);
+
         recycler_view.setItemAnimator(new FadeInAnimator());
 
 
@@ -197,6 +234,14 @@ public class MainActivity extends AppCompatActivity {
         };
         layout_uri_input.setErrorIconOnClickListener(listener);
         layout_uri_input.setEndIconOnClickListener(listener);
+        edit_text_uri_input.setAdapter(history_adapter);
+
+        layout_uri_input.setStartIconOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                edit_text_uri_input.showDropDown();
+            }
+        });
 
 
         /*
@@ -235,6 +280,9 @@ public class MainActivity extends AppCompatActivity {
         scraper = new FbScraper(new WeakReference<>(this), url);
 
         scraper.run();
+
+        history_adapter.insert(url, 0);
+        history.add(0, url);
     }
 
     /**

app/src/main/java/com/akdev/nofbeventscraper/SettingsActivity.java

@@ -43,16 +43,20 @@ public class SettingsActivity extends AppCompatActivity {
 
                         final SharedPreferences prefs = preference.getSharedPreferences();
 
-                        final String undo = prefs.getString("events", "");
+                        final String events = prefs.getString("events", "");
                         prefs.edit().remove("events").apply();
 
+                        final String history = prefs.getString("history", "");
+                        prefs.edit().remove("history").apply();
+
                         Snackbar.make(getActivity().findViewById(android.R.id.content),
                                 getString(R.string.preferences_event_snackbar), Snackbar.LENGTH_SHORT)
                                 .setAction(R.string.undo, new View.OnClickListener() {
 
                                     @Override
                                     public void onClick(View v) {
-                                        prefs.edit().putString("events", undo).apply();
+                                        prefs.edit().putString("events", events).apply();
+                                        prefs.edit().putString("history", history).apply();
                                     }
                                 }).show();
 

app/src/main/res/drawable/ic_history_black.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M13,3c-4.97,0 -9,4.03 -9,9L1,12l3.89,3.89 0.07,0.14L9,12L6,12c0,-3.87 3.13,-7 7,-7s7,3.13 7,7 -3.13,7 -7,7c-1.93,0 -3.68,-0.79 -4.94,-2.06l-1.42,1.42C8.27,19.99 10.51,21 13,21c4.97,0 9,-4.03 9,-9s-4.03,-9 -9,-9zM12,8v5l4.25,2.52 0.77,-1.28 -3.52,-2.09L13.5,8z"
+      android:fillColor="#000000"/>
+</vector>

app/src/main/res/layout/content_main.xml

@@ -17,7 +17,7 @@
 
         <com.google.android.material.textfield.TextInputLayout
             android:id="@+id/layout_uri_input"
-            style="@style/Widget.MaterialComponents.TextInputLayout.FilledBox"
+            style="@style/Widget.MaterialComponents.TextInputLayout.FilledBox.ExposedDropdownMenu"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_margin="16dp"
@@ -26,9 +26,10 @@
             app:endIconMode="clear_text"
             app:errorIconDrawable="@drawable/ic_backspace_black"
             app:helperText="@string/helper_add_link"
-            app:helperTextEnabled="true">
+            app:helperTextEnabled="true"
+            app:startIconDrawable="@drawable/ic_history_black">
 
-            <com.google.android.material.textfield.TextInputEditText
+            <com.google.android.material.textfield.MaterialAutoCompleteTextView
                 android:id="@+id/edit_text_uri_input"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"