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Rebecca Halsey

PEARSON

Boston Columbus Indianapolis ^{New York} San Francisco

Upper^{SaddleRiver Amsterdam} Cape^{Town Dubai London} Madrid Milan Munich Paris Montreal Toronto Delhi MexicoCity ^SaoPaulo Sydney

Hong Kong Seoul Singapore Taipei Tokyo

Chapter

Programming

App

1.1 Introduction 25

1.2 WhatIsaComputer Program? ²⁸

1.3 Introducing App ^{Inventor 32}

TUTORIAL 1-1: Starting App^Inventorand Creating^a

NewProject ³²

1.4 GettingHands-On with App ^{Inventor 46}

tutorial 1-2: Creatingthe Screen for the Hello WorldApp ⁶¹

tutorial 1-3: Completing the Hello WorldApp ⁷⁵

tutorial 1-4: Creating^{the Good} Morning^TranslatorApp ⁷⁹

ReviewQuestions 88

Chapter

Working

2.1 Displaying Images ⁹⁷

tutorial 2-1: Changing^{the Screen's}BackgroundImage ¹⁰⁰

tutorial2-2: Switchingthe Screen'sBackground Image

in Code 104

tutorial 2-3: Using^theImageComponent ¹⁰⁹

tutorial2-4: Creating^theFlags App ¹¹⁴

2.2 Duplicating ^{Blocks and} Using Dropdowns ¹²⁰

2.3 Sounds 123

tutorial 2-5: Creating^{the Guitar} App ¹²⁶

tutorial 2-6: Makingthe Phone Vibrate 130

2.4 Color Blocks 133

2.5 Layout Components ¹³⁶

tutorial 2-7: Using Layout Components ^andColor Blocks 140

2.6 Commenting ^{Blocks 143}

tutorial 2-8: Adding^{Comments 144}

ReviewQuestions 145

7

8 Contents

Chapter

Input, Variables,

3.1 The TextBoxComponent ¹⁵³

3.2 Performing Calculations 159

TUTORIAL 3-1: Calculating^FuelEconomy ¹⁶²

TUTORIAL 3-2: Creatingthe RestaurantTip^CalculatorApp ¹⁶⁸

3.3 Storing^Datawith Variables 173

TUTORIAL 3-3: Creatingthe KilometerConverterApp ¹⁸²

TUTORIAL 3-4: Creating^theChange ^CounterApp ¹⁹³

3.4 Creating Blocks withTypeblocking ¹⁹⁸

3.5 The SliderComponent ²⁰⁰

3.6 Math Functions 204

ReviewQuestions ²⁰⁶

Chapter

Logic

4.1 Introductionto Decision Blocks 211

4.2 Relational Operators ^{and the ifBlock. 216}

tutorial 4-1: TheTestAverage App ²¹⁸

4.3 The if then else Block 226

tutorial4-2: Modifying^{theTestAverage}App ²²⁷

tutorial 4-3: Creating ^{theWages App 229}

4.4 A FirstLookAtComparing Strings ²³⁶

4.5 Logical Operators ²³⁷

tutorial 4-4: Creating ^the Range^CheckerApp ²⁴⁰

4.6 Nested Decision Blocks 242

tutorial 4-5: Creating^{the Grader}App ²⁴³

4.7 The if then else if Block 245

4.8 Workingwith Random Numbers 248

tutorial 4-6: Simulating Coin Tosses 250

4.9 The Screen's initialize Event 253

4.10 The ListPickerComponent ²⁵⁴

tutorial 4-7: Creating^{the Time Zone}App ²⁵⁶

4.11 The CheckBoxComponent ²⁵⁹

ReviewQuestions ²⁶⁵

Chapter

Repetition ^Blocks,

5.1 The Notifier Component ²⁷¹

5.2 Thewhile Loop ²⁷⁹

TUTORIAL 5 1: TheEnding^BalanceApp ²⁸²

5.3 The for each Loop ²⁸⁷

tutorial 5-2: Calculating^{a Sum}of Consecutive Numbers 291

5.4 TheClockComponent ²⁹⁴

tutorial5-3: Creating^{a Clock} App ²⁹⁷

5.5 The DatePickerComponent ³⁰³

Review Questions ³⁰⁶

Chapter

6.1 ModularizingYour Code With Procedures 311

6.2 Procedures 312

tutorial6-1: Creating^theLights App ^{' 316}

6.3 Passing Arguments^{toProcedures 322}

tutorial6-2: Creatingthe AreaCircle App ³²⁷

6.4 ReturningValues From Procedures 331

tutorial 6-3: TheCups^{To Ounces}App ³³⁴

ReviewQuestions ³³⁸

Chapter

7.1 Creating ^{a List 343}

TUTORIAL 71: Creating^{aList 345}

7.2 Iterating ^{Over a}List with thefor each Loop ³⁵⁰

TUTORIAL 7-2: Iterating^{Over aListwith thefor each}Loop ³⁵³

7.3 Selecting ^{an Item 356}

tutorial 7-3: Selecting^{anItem ina List 356}

TUTORIAL 7-4: Using^thelength ^{of list} Function 361

7.4 Inserting ^andAppending ^{Items 365}

tutorial 7-5: AddItemstoaList 367

7.5 Removing ^{Items 372}

7.6 Replacing ^{Items 374}

tutorial 7-6: Replacing^andRemoving^{List Items 376}

7.7 Searching^{foran Item 384}

tutorial7-7: Creating^aNumber-Guessing^{Game 385}

7.8 Other List Functions 390

Review Questions ³⁹¹

Chapter

Storing

8.1 App ^Inventor Storage Components ³⁹⁵

8.2 TheApplication ^{Sandbox 396}

8.3 FileComponent ³⁹⁶

tutorial8-1: Creating^{a File 399}

8.4 Retrieving ^{a File 402}

TUTORIAL8-2:Retrieving^{a File 402}

tutorial 8-3: Appending^{aFile 405}

8.5 TinyDB ⁴⁰⁷

8.6 Tag-Value ^{Pairs 408}

8.7 Storing ^aTag-Value^{Pair 409}

10 Contents

tutorial 8-4: StoringNames and Phone Numbers 409

8.8 Retrieving^{a Value 410}

tutorial 8-5: Storing^and Retrieving^{Values 411}

8.9 Tag-ValuePairs when the Value isa List 413 tutorial 8-6: Storing^{a Listas a}Value in aTag-Value^{Pair 414}

8.10 TinyDB^Across Multiple^{Screens 421}

TUTORIAL 8-7: TinyDB^across Multiple^{Screens 423}

ReviewQuestions ⁴³³

Chapter

Graphics

9.1 The Canvas Component ⁴³⁹

tutorial 9-1:Drawing^{on the Canvas 442}

9.2 The Ball and ImageSprite Component ⁴⁴⁸

tutorial 9-2:Bouncing^{Ball 448}

tutorial 9-3: Fishbowl^- Using ^theImageSprite Component ⁴⁵⁶

9.3 Using^{the Clock}Component^to Create Animations 458

tutorial 9-4: Crack the Egg ⁴⁵⁸

9.4 Dragging Sprites ⁴⁶³

tutorial 9-5: Drag ^BallSpriteExample ⁴⁶³

tutorial 9 6: Drag ^{the Ballinto the Box 464}

9.5 Detecting^{Collisions 469}

tutorial 9-7: Popping^{Balloons 471}

ReviewQuestions ⁴⁷⁹

Chapter

^Working

10.1 Concatenating Strings ⁴⁸⁵

10.2 Comparing Strings ⁴⁹¹

tutorial10-1: Comparing Strings ⁴⁹⁴

10.3 Trimming ^a String ⁴⁹⁹

10.4 Converting ^{Case 500}

tutorial10-2: Trim and Convertto FormatTags ⁵⁰¹

10.5 Finding ^aSubstring ⁵⁰⁵

tutorial 10-3: ValidateanEmail Address 508

10.6 Replacing^a Substring ⁵¹³

10.7 Extracting ^a Substring ⁵¹³

10.8 Splitting^{a Substring 515}

tutorial 10-4: Validating ^Email-Valid Name andTop-Level^{Domain ... 519}

ReviewQuestions ^-529

Chapter

Speech

Messaging

11.1 TheTextToSpeech Component ⁵³³

tutorial il l: Textto Speech ⁵³⁶

11.2 TheTexting Component ⁵⁴⁰

11.3 Receiving^TextMessages ⁵⁴³

tutorial n-2: Creating^the Speak Messages^from FamilyApp ⁵⁴⁴

11.4 Sending ^Text Messages ⁵⁴⁷

tutorial 113: Reply^toFamily ⁵⁴⁸

ReviewQuestions 550

Chapter

12.1 The LocationSensor 555

tutorial 12-1: Display^{Location 559}

12.2 The OrientationSensor 566

tutorial12-2: Cat and Mouse 569

12.3 The Accelerometer 574

TUTORIAL 12-3: ShaketoClear Canvas 576

12.4 Using ^theActivityStarter Component^{to launch} Google Maps ⁵⁷⁸

tutorial 12-4: Open Google Maps ⁵⁸⁰

ReviewQuestions ⁵⁸¹

Chapter

App

Capabilities

13.1 Recording^{Audio 585}

tutorial 13-1: Record andPlayBack^{Audio 587}

13.2 Taking ^a Photo with the Phone's Camera 591

13.3 The Camcorder Component ⁵⁹²

13.4 Using ^the ImagePicker Component ⁵⁹³

tutorial 13-2: Using^theImagePicker ⁵⁹³

13.5 Playing^{Video 596}

tutorial 13-3: Playing^{Video 597}

13.6 Selecting Contacts from theContact List and Placing ^{PhoneCalls... 600}

tutorial 13-4: Usingthe Contact and Phone Number Pickers 601

tutorial 13-5: Usingthe PhoneCallcomponent ⁶⁰⁴

13.7 Scanning ^{a Barcode 608}

13.8 Using ^VoiceRecognition ⁶⁰⁹

tutorial 13-6: Speak ^aTextMessage ⁶⁰⁹

13.9 Connecting ^{to aTwitterAccount 613}

tutorial 13-7: Building^aTwitterApplication ⁶¹⁴

13.10TinyWebDB ⁶¹⁶

ReviewQuestions 617

Appendix

Setting Up App

Appendix

Connecting

App

12 Contents

Appendix

Uploading

Application

App

Gallery

Google Play

Appendix

Component

Appendix

Checkpoints

Index 685