Felipe de Souza Longo felipeslongo

1. Go to `%LOCALAPPDATA%\Xamarin`

2. If it doesn't already exist, create a new folder named after the support library NuGet package, e.g. `Xamarin.Android.Support.v4`

3. Repeat for every support library package in your project:

4. Open the Xamarin Android SDK Manager and download the Android Support Repository (under Tools > Extras):

5. Go to `[Android SDK location]\extras\android\m2repository\com\android\support` and open the directory for the support library you need

6. Find the correct version and copy the entire folder to directory you created in step 2. The correct version is the one that matches or is nearest to the NuGet package version. For example, if the package version is `23.4.0.1` the support library version would be `23.4.0`. If you did not create a folder in

Enabling FTS4 on an Android project with Room

You can do a SQL text query by using the LIKE operator. The issue is that using it requires a lot of computation, as a complete string query is done. Also if you want to have more search options (more fields), your query will grow a lot in complexity. To solve this issue, there's a concept of virtual tables for full text search (FTS).

We will build our solution using Room (already set in the project). We're using version 2.2.0-rc01 for that.

Step 1 - Create new Virtual Table

With Room, the only thing we need is to create the new class with @FTS4 notation. By specifying contentEntity to be the Route class, it means that it will reuse the values from the Route table instead of populating this one with copies. The fields in question should match the ones from the Route table. In this example we only need the title.

	public class DumbViewHolder extends RecyclerView.ViewHolder {
	TextView textTitle;
	TextView textLocation;
	TextView textDate;
	ImageView mapIcon;

	public DumbViewHolder(View itemView) {
	super(itemView);
	textTitle = (TextView) itemView.findViewById(R.id.text_title);
	textLocation = (TextView) itemView.findViewById(R.id.text_location);

	/*
	* Copyright (C) 2017 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software

	<?xml version="1.0" encoding="utf-8"?>
	<LinearLayout
	xmlns:android="http://schemas.android.com/apk/res/android"
	xmlns:app="http://schemas.android.com/apk/res-auto"
	xmlns:tools="http://schemas.android.com/tools"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:orientation="vertical"
	tools:context="com.example.kelvinchandra.myapplication.MainActivity">