Advanced Android Tutorial

[Pages:532]Advanced Android Tutorial

ADVANCED ANDROID TUTORIAL

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ABOUT THE TUTORIAL

Advanced Android Tutorial

Android is an open source and Linux-based operating system for mobile devices such as smartphones and tablet computers. Android was developed by the Open Handset Alliance, led by Google, and other companies. This tutorial will teach you basic Android programming and will also take you through some advance concepts related to Android application development.

Audience

This tutorial has been prepared for the beginners to help them understand basic Android programming. After completing this tutorial you will find yourself at a moderate level of expertise in Android programming from where you can take yourself to next levels.

Prerequisites

Android programming is based on Java programming language so if you have basic understanding on Java programming then it will be a fun to learn Android application development.

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Table of Content

Advanced Android Tutorial ....................................................... 2 Audience.................................................................................. 2 Prerequisites ............................................................................ 2 Copyright & Disclaimer Notice.................................................. 2 Drag and Drop ....................................................................... 12

The Drag/Drop Process............................................................................12 The DragEvent Class ...............................................................................13 CONSTANTS ...........................................................................................13 METHODS ...............................................................................................13 Listening for Drag Event...........................................................................14 Starting a Drag Event ...............................................................................14 Example ...................................................................................................14

Notifications ........................................................................... 19

Create and Send Notifications..................................................................20 STEP 1 - CREATE NOTIFICATION BUILDER ........................................20 STEP 2 - SETTING NOTIFICATION PROPERTIES ................................20 STEP 3 - ATTACH ACTIONS ..................................................................20 STEP 4 - ISSUE THE NOTIFICATION.....................................................21 The NotificationCompat.Builder Class......................................................21 Example ...................................................................................................22 Big View Notification ................................................................................28

Location Based Services........................................................ 31

The Location Object .................................................................................31 Get the Current Location ..........................................................................32 Get the Updated Location ........................................................................33 Location Quality of Service.......................................................................33 Displaying a Location Address .................................................................33 Example ...................................................................................................34 INSTALL THE GOOGLE PLAY SERVICES SDK ....................................34 CREATE ANDROID APPLICATION ........................................................34

Sending Email........................................................................ 43

Intent Object - Action to send Email .........................................................43 Intent Object - Data/Type to send Email...................................................43 Intent Object - Extra to send Email...........................................................43 Example ...................................................................................................44

Sending SMS ......................................................................... 49

Using SmsManager to send SMS ............................................................49

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Example ...................................................................................................50 Using Built-in Intent to send SMS.............................................................54 Intent Object - Action to send SMS ..........................................................54 Intent Object - Data/Type to send SMS....................................................54 Intent Object - Extra to send SMS............................................................54 Example ...................................................................................................54

Phone Calls ........................................................................... 59

Intent Object - Action to make Phone Call................................................59 Intent Object - Data/Type to make Phone Call .........................................59 Example ...................................................................................................59

Publishing Android Application ............................................. 64

Export Android Application .......................................................................65 Google Play Registration..........................................................................68

Android Alert Dialoges ........................................................... 70

Example ...................................................................................................71

Android Animations ................................................................ 81

Tween Animation .....................................................................................81 Zoom in animation....................................................................................82 Example ...................................................................................................82

Android Audio Capture........................................................... 93

Example ...................................................................................................94

Android AudioManager ........................................................ 103

Example .................................................................................................104

Android Auto Complete ........................................................ 113

Example .................................................................................................114

Android Best Practices......................................................... 121

Best Practices - User input.....................................................................121 Best Practices - Background jobs ..........................................................121 ASYNCTASK VS SERVICES.................................................................121 Best Practices - Performance.................................................................122 Best Practices - Security and privacy .....................................................122 Example .................................................................................................122

Android Bluetooth ................................................................ 131

Example .................................................................................................132

Android Camera................................................................... 143

Using existing android camera application in our application .................143 Example .................................................................................................144 Directly using Camera API provided by android in our application.........150 Example .................................................................................................152

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Android Clipboard ................................................................ 158

Copying data ..........................................................................................158 Pasting data ...........................................................................................159 Example .................................................................................................159

Android Custom Fonts ......................................................... 166

Example .................................................................................................167

Android Data Backup ........................................................... 170

Example .................................................................................................171 Test your BackupAgent ..........................................................................173 INSTALL YOUR APPLICATION ON A SUITABLE ANDROID SYSTEM IMAGE. 173 ENSURE DATA BACKUP IS ENABLED ................................................173 PERFORMING BACKUP .......................................................................173 UNINSTALL AND REINSTALL YOUR APPLICATION ..........................173

Android Developer Tools...................................................... 174

SDK tools ...............................................................................................174 Android ................................................................................................... 175 DDMS ..................................................................................................... 175 RUNNING DDMS ...................................................................................175 HOW IT WORKS....................................................................................175 USING DDMS ........................................................................................175 MAKING SMS ........................................................................................175 MAKING CALL .......................................................................................176 CAPTURING SCREENSHOT ................................................................178 Sqlite3 ....................................................................................................179 USE SQLITE3 FROM A REMOTE SHELL.............................................179 USING SQLITE3 DIRECTLY .................................................................179 Platform tools .........................................................................................180

Android Emulator ................................................................. 181

Creating AVD .........................................................................................181 Creating Snapshots................................................................................181 Changing Orientation .............................................................................182 Emulator Commands..............................................................................183 Emulator - Sending SMS........................................................................184 SENDING SMS THROUGH TELNET. ...................................................184 Emulator - Making Call ...........................................................................185 Emulator - Transferring files ...................................................................186

Android Facebook Integration .............................................. 187

Integrating Facebook SDK .....................................................................187 GENERATING APPLICATION SIGNATURE .........................................187

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REGISTERING YOUR APPLICATION...................................................188 DOWNLOADING SDK AND INTEGRATING IT .....................................188 CREATING FACEBOOK LOGIN APPLICATION ...................................188 Intent share ............................................................................................189 Example .................................................................................................190

Android Gestures ................................................................. 197

Handling Pinch Gesture .........................................................................197 Example .................................................................................................198

Android Google Maps .......................................................... 205

Adding Google Map ...............................................................................205 GOOGLE MAP - ACTIVITY FILE ...........................................................205 GOOGLE MAP - LAYOUT FILE.............................................................205 GOOGLE MAP - ANDROIDMANIFEST FILE.........................................205 Customizing Google Map .......................................................................206 ADDING MARKER .................................................................................206 CHANING MAP TYPE............................................................................206 ENABLE/DISABLE ZOOM .....................................................................206 Example .................................................................................................207 Integrating Google Maps ........................................................................207 Download and configure. Google Play Services SDK ............................208 INSTALL GOOGLE SERVICES SDK.....................................................208 IMPORT SDK TO ECLIPSE...................................................................208 CONFIGURE YOUR PROJECT WITH SDK ..........................................208 Obtaining the API key.............................................................................209 GETTING CERTIFICATE FROM KEYTOOL .........................................209

GETTING KEY FROM GOOGLE CONSOLE .......................................210

Specify Android Manifest settings ..........................................................210 Adding Google Maps to your application................................................211

Android Image Effects.......................................................... 215

Example .................................................................................................216

Android Image Switcher ....................................................... 224

Example .................................................................................................225

Android Internal Storage ...................................................... 231

Writing file ..............................................................................................231 Reading file ............................................................................................231 Example .................................................................................................232

Android JetPlayer................................................................. 239

Example .................................................................................................240 Using JetCreator ....................................................................................240

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INSTALLING PYTHON ..........................................................................240

INSTALLING WXPYTHON ...................................................................241

RUUNING JETCREATOR ....................................................................241

CREATING JETCONTENT ...................................................................242

Verifying Results ....................................................................................243

Android JSON Parser........................................................... 244

JSON - Elements ...................................................................................244 JSON - Parsing ......................................................................................245 Example .................................................................................................246

Android Linkedin Integration ................................................ 254

Integrating Linkedin SDK........................................................................254

REGISTERING YOUR APPLICATION ................................................. 254

DOWNLOADING SDK AND INTEGRATING IT....................................255

POSTING UPDATES ON LINKEDIN APPLICATION ...........................255

Intent share ............................................................................................255 Example .................................................................................................256

Android Loading Spinner...................................................... 263

Example .................................................................................................264

Android Localization............................................................. 268

LOCALIZING STRINGS ........................................................................268

ITALY, RES/VALUES-IT/STRINGS.XML..............................................268

SPANISH, RES/VALUES-IT/STRINGS.XML ........................................269

FRENCH, RES/VALUES-IT/STRINGS.XML.........................................269

Example .................................................................................................269

Android Login Screen........................................................... 274

Example .................................................................................................275

Android MediaPlayer............................................................ 283

Example .................................................................................................284

Android Multitouch ............................................................... 295

Example .................................................................................................296

Android Navigation............................................................... 305

Providing Up Navigation.........................................................................305 Handling device back button ..................................................................305 Example .................................................................................................306

Android Network Connection................................................ 314

Checking Network Connection ...............................................................314 Performing Network Operations .............................................................315 Example .................................................................................................315

Android NFC Guide.............................................................. 324

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