Design and implementation of an Android application (MobilitApp+) to analyze the mobility patterns of citizens in the Metropolitan Region of Barcelona

3 LIST OF FIGURES 6 LIST OF TABLES 7 GLOSSARY OF ACRONYMS 8 I. INTRODUCTION 9 I.1. Introduction 10 II. MOBILITAPP MAIN DESIGN 11 II.1. Application Fundamentals 12 II.1.1. Activity 12 II.1.2. Fragment 15 II.1.3. Service 17 II.1.4. Localization 19 II.1.5. Shared Preferences 21 II.1.6. Upload MobilitApp data to a Cloud Server 23 II.2. API 25 II.2.1. Location Services API 25 II.2.1.1. Location Sources in Android devices 25 II.2.1.2. Android Location Tools 27 Fused Location Provider 27 Location Request 28 II.2.2. Activity Recognition API 29 II.2.2.1. Activity Recognition Sources in Android devices 29 II.2.2.2. Activity Recognition's Tools 29 Activity Recognition Result 29 Detected Activity 29 II.2.3. Google Places API 30 II.2.3.1. Places Requests 30 II.2.3.2. Places Response 31 II.2.3.3. Find Places Algorithm 32 II.2.4. Google Directions API 33 II.2.4.1. Directions Requests 33 II.2.4.2. Directions Response 34 II.2.4.3. Find Bus or Tram Algorithm 36 III. MOBILITAPP ARCHITECTURE 37 III.1. Location Service 38 III.1.1. Starting Location Service 38 III.1.2. Activity Processing Algorithm 40 III.1.3. Location Processing Algorithm 42 III.1.3.1. First Stage: GPS activator algorithm 42 III.1.3.2. Second Stage: Underground Recognition 44 III.1.3.3. Third Stage: Mobility Data Parameters 44 III.1.3.4. Fourth Stage: Creating Mobility Data Segments 45 III.2. Activity Recognition Service 47 III.2.1. Starting Activity Recognition Service 47 III.2.2. Architecture 47 III.2.3. Activity Detection 48 III.3. Map 49