Search with suggestion

/* configure Search */
private void configureSearch() {
        // add text change listener for searchView
        searchView.addTextChangedListener(searchTextWatcher);


        // set search Suggestion Adapter
        searchSuggestionAdapter = new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line);
        searchView.setAdapter(searchSuggestionAdapter);
        searchView.setThreshold(2);
        searchView.setOnItemClickListener((parent, view, position, id) -> {
            //TODO get data for search keyword and show in UI
        });


        // get suggestion data
        getSuggestionData();


        // handle keyboard search btn click
        searchView.setOnEditorActionListener((v, actionId, event) -> {
            if (actionId == EditorInfo.IME_ACTION_SEARCH) {
                // disappear suggestions box
                searchView.dismissDropDown();

                // close keyboard
                closeKeyboard();

                // save search keyword in db
                saveSearchKeywordInDb(searchKeyword);
                
                // get search keyword
                String searchKeyword = v.getText().toString().trim();

                // TODO get data for search keyword

                return true;
            }
            return false;
        });
    }


    /* search text watcher*/
    private TextWatcher searchTextWatcher = new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            // TODO anything
        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            // TODO anything
            if (TextUtils.isEmpty(s)) {
                searchClearIcon.setVisibility(View.GONE);
            } else {
                searchClearIcon.setVisibility(View.VISIBLE);
            }
        }

        @Override
        public void afterTextChanged(Editable s) {
            // TODO anything
        }
    };
    
    
    /* get Suggestion Data */
    private void getSuggestionData() {
            //TODO get suggestion data
            searchSuggestionsList = ...;
            
            suggestions.clear();
            for (Data suggestion : searchSuggestionsList) {
                suggestions.add(suggestion.getTitle());
            }
            searchSuggestionAdapter.clear();
            searchSuggestionAdapter.addAll(suggestions);
        });
    }
    
    /* close keyboard */
    private void closeKeyboard() {
        //Find the currently focused view, so we can grab the correct window token from it.
        View view = this.getCurrentFocus();

        //If no view currently has focus, create a new one, just so we can grab a window token from it
        if (view == null) {
            view = new View(this);
        }

        InputMethodManager imm = (InputMethodManager) this.getSystemService(Context.INPUT_METHOD_SERVICE);
        Objects.requireNonNull(imm).hideSoftInputFromWindow(view.getWindowToken(), 0);
    }
    
    /* save search keyword in db */
    private void saveSearchKeywordInDb(String searchKeyword) {
        //TODO save in db
    }

xml

 <!-- SearchView Container -->
    <RelativeLayout
        android:id="@+id/searchContainer"
        android:layout_width="match_parent"
        android:layout_height="56dp"
        android:layout_gravity="center_horizontal">

        <AutoCompleteTextView
            android:id="@+id/searchView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@drawable/search_view_background"
            android:hint="Search in movie title"
            android:imeOptions="actionSearch"
            android:inputType="text"
            android:maxLines="1"
            android:paddingLeft="48dp"
            android:paddingRight="48dp"
            android:singleLine="true"
            android:textColor="@android:color/black" />

        <ImageView
            android:id="@+id/searchIcon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"
            android:layout_centerVertical="true"
            android:layout_marginStart="16dp"
            android:tint="@color/searchViewIconTint"
            app:srcCompat="@drawable/ic_search" />

        <ImageView
            android:id="@+id/searchClearIcon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_centerVertical="true"
            android:layout_marginEnd="16dp"
            android:tint="@color/searchViewIconTint"
            app:srcCompat="@drawable/ic_clear" />

    </RelativeLayout>

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