David Defour - Université de Perpignan

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RES/VALUES/STRINGS.XML Event Handling Example Red Blue Yellow jeudi 26 janvier 12 main.xml refers to these names with @string/red_prompt, @string/ blue_prompt, and @string/yellow_prompt. Each string is used as label for one Button and one RadioButton.
jeudi 26 janvier 12 MAIN ACTIVITY CLASS public class Events1Example extends Activity { private View mColorRegion; @Overri<strong>de</strong> public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mColorRegion = findViewById(R.id.color_region); Button b1 = (Button)findViewById(R.id.button1); Button b2 = (Button)findViewById(R.id.button2); Button b3 = (Button)findViewById(R.id.button3); RadioButton r1 = (RadioButton)findViewById(R.id.radio_button1); RadioButton r2 = (RadioButton)findViewById(R.id.radio_button2); RadioButton r3 = (RadioButton)findViewById(R.id.radio_button3); This part just looks up the controls that were <strong>de</strong>fined in main.xml, and assigns them to variables. Note the Android coding convention that nonpublic instance variables (data members) start “m”.
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jeudi 26 janvier 12 PROGRAMMATION S
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jeudi 26 janvier 12 DESCRIPTION DU
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DESCRIPTION • Titre : Réalisatio
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jeudi 26 janvier 12 EXAMPLE: APP IN
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jeudi 26 janvier 12 DÉPLACEMENTS O
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GESTION DU CONTRÔLE Ordre Fonction
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RÉFÉRENCES: • http://lwh.free.f
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• Motivations RÉSUMÉ DU COURS
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AVANTAGES DES APPLI WEB • Accès
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AVANTAGES DES APPLI MOBILES • Plu
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INCONVÉNIENTS DES APPS • Pas d
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INSTALLATION • Apps génériques
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OS POUR LE DÉVELOPPEMENT DES APPS
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GOOGLE SEARCH: ANDROID jeudi 26 jan
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jeudi 26 janvier 12 PRÉSENCE SUR L
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jeudi 26 janvier 12 CONCLUSION Pré
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• Web apps vs. Android apps jeudi
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jeudi 26 janvier 12 ANDROID: INSTAL
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jeudi 26 janvier 12 INSTALLATION DE
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INSTALLATION DE JAVA SE 6 • http:
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INSTALLATION D’ECLIPSE • http:/
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ANDROID SDK • Présentation • B
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• Présentation PLUGIN ADT • AD
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CONFIGURATION DE ADT • Définisse
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ANDROID VIRTUAL DEVICES (AVDS) •
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LANCEMENT D’UNE APPS SUR jeudi 26
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LANCEMENT DE HELLOANDROID DANS L’
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jeudi 26 janvier 12 HELLO ANDROID
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DÉFINITION DES OPTIONS DU PROJETS
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LANCEMENT DE VOTRE APPS • Fonctio
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LES BASES DE DDMS • Concepts •
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LANCEMENT D’UNE APPS SUR jeudi 26
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VIA L’USB • Prérequis : il fau
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EXPORTER UN PACKAGE • A faire à
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jeudi 26 janvier 12 LANCEMENT DE L
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RÉSUMÉ • Installation des logic
Page 73 and 74: CONCEPTS DE BASE DE LA PROGRAMMATIO
Page 75 and 76: jeudi 26 janvier 12 RÉALISER UN PR
Page 77 and 78: RÉALISER VOTRE PROPRE PROJET ANDRO
Page 79 and 80: jeudi 26 janvier 12 DÉFINITION DES
Page 81 and 82: LANCER UNE NOUVELLE APP SUR UN DEVI
Page 83 and 84: jeudi 26 janvier 12 STRUCTURE D’U
Page 85 and 86: LES 3 APPROCHES PRINCIPALES • Jav
Page 87 and 88: APPROCHE XML: SCHÉMA • Java publ
Page 89 and 90: jeudi 26 janvier 12 LAYOUT JAVA
Page 91 and 92: jeudi 26 janvier 12 CODE (CORPS) pu
Page 93 and 94: RÉSULTAT SUR L’ ÉMULATEUR • c
Page 95 and 96: jeudi 26 janvier 12 LAYOUT XML
Page 97 and 98: PLUS DE DÉTAILS • res/layout/mai
Page 99 and 100: RES/LAYOUT/MAIN.XML jeudi 26 j
Page 101 and 102: } jeudi 26 janvier 12 CODE (JAVA) p
Page 103 and 104: jeudi 26 janvier 12 ECLIPSE ADT VIS
Page 105 and 106: jeudi 26 janvier 12 ECLIPSE VISUAL
Page 107 and 108: • Approches CONCEPTS • Utilisat
Page 109 and 110: RES/VALUES/STRINGS.XML Say Hello
Page 111 and 112: • Dans l’émulateur • Click-D
Page 113 and 114: jeudi 26 janvier 12 PROJECT LAYOUT
Page 115 and 116: jeudi 26 janvier 12 QUESTIONS?
Page 117 and 118: RÉSUMÉ DU COURS • Utilisation d
Page 119 and 120: CONCEPTS • Buts • Changer la co
Page 123: RES/LAYOUT/MAIN.XML jeudi 26 janv
Page 127 and 128: } jeudi 26 janvier 12 EVENT HANDLER
Page 129 and 130: jeudi 26 janvier 12 RÉSULTATS SUR
Page 131 and 132: IDÉE • Buts • Changer la coule
Page 133 and 134: jeudi 26 janvier 12 MAIN ACTIVITY C
Page 135 and 136: EVENT HANDLER CLASS (PARTIE DE MAIN
Page 137 and 138: jeudi 26 janvier 12 RÉSULTAT SUR U
Page 139 and 140: CONCEPT • Buts • Changer la cou
Page 141 and 142: RES/VALUES/STRINGS.XML Event Hand
Page 143 and 144: } } jeudi 26 janvier 12 ACTIVITY CL
Page 145 and 146: jeudi 26 janvier 12 ACTIVITY CLASS
Page 147 and 148: jeudi 26 janvier 12 RÉSULTATS SUR
Page 149 and 150: CONCEPT • Buts • Changer la cou
Page 153 and 154: jeudi 26 janvier 12 RÉSULTAT SUR L
Page 155 and 156: jeudi 26 janvier 12 GESTION DES ÉV
Page 161 and 162: jeudi 26 janvier 12 RÉSULTAT SUR L
Page 163 and 164: jeudi 26 janvier 12 COPIE D’UN PR
Page 165 and 166: jeudi 26 janvier 12 CONCLUSION
Page 167 and 168: APPROCHES: CONTRÔLE SIMPLE • Sit
Page 169 and 170: • Buttons RÉSUMÉ DU COURS • I
Page 171 and 172: WIDGET LECTURES COMBINED IN SINGLE
Page 173 and 174: SWITCHING ACTIVITIES: SUMMARY • S
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jeudi 26 janvier 12 APPROACH FOR BU
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XML: LAYOUT FILE (RES/LAYOUT/BUTTON
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JAVA (BUTTONACTIVITY.JAVA) public c
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BUTTON • Idea • A push button d
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XML: STRINGS FILE ENTRIES (PART OF
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jeudi 26 janvier 12 Emulator RESULT
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IMAGEBUTTON, VARIATION 1 • Idea
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jeudi 26 janvier 12 RESULTS (EMULAT
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IMAGEBUTTON, VARIATION 2 • Idea
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IMAGE DESCRIPTOR FILE (RES/ DRAWABL
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RADIOBUTTON • Idea • A button f
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FIRST EXAMPLE: EVENT HANDLERS ATTAC
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STRINGS FILE AND JAVA • Nothing n
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jeudi 26 janvier 12 RADIOBUTTON (WI
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XML: LAYOUT FILE ENTRY (PART OF RES
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JAVA (RELEVANT PARTS) public class
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JAVA (RELEVANT PARTS, CONTINUED) }
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jeudi 26 janvier 12 CHECKBOX
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TOGGLEBUTTON • Idea • A button
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JAVA (RELEVANT PARTS, CONTINUED) Th
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jeudi 26 janvier 12 WRAP-UP
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jeudi 26 janvier 12 WIDGETS: SPINNE
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jeudi 26 janvier 12 GENERAL APPROAC
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LAYOUT FILES FOR WIDGET LECTURES
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SWITCHING ACTIVITIES: SUMMARY • S
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SWITCHING ACTIVITIES: WIDGETSINITIA
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jeudi 26 janvier 12 OVERALL WIDGET
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SPINNER WITH PREDEFINED • Idea CH
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ONITEMSELECTEDLISTENER • onItemSe
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JAVA (RELEVANT PARTS, CONTINUED) pr
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jeudi 26 janvier 12 SPINNER APPROAC
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SPINNER (CONTINUED) • Key XML att
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JAVA (RELEVANT PARTS) public class
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SUMMARY • Spinner with fixed entr
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Topics in This Section • LinearLa
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Main Layout Strategies • XML-base
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Commonly Used Attributes • Size -
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Commonly Used Attributes (Continued
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LinearLayout • Idea -Put componen
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Example Details 271 jeudi 26 janvie
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Colors • Idea - Although colors c
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Layout File (res/layouts/ nested_la
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Localization Preview • Idea -You
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Setting Locale Programmatically •
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Localized Color File (res/values-qq
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Results 287 jeudi 26 janvier 12 Loc
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Using android:layout_weight • Ide
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Java Code public class LayoutWeight
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jeudi 26 janvier 12 RelativeLayout
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Referring to Existing IDs • First
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jeudi 26 janvier 12 TableLayout ©
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TableRow • Idea - Goes inside Tab
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Hierarchy Viewer • Idea -The Andr
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jeudi 26 janvier 12 Wrap-Up © 2011
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More Reading • Tutorial: Declarin
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jeudi 26 janvier 12 © 2011 Marty H
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jeudi 26 janvier 12 Overview © 201
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Pros and Cons of Following Conventi
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Indentation: blocks that are nested
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Break Things into Small Pieces •
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Use JavaDoc • Use JavaDoc from th
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Use Other Standard Annotations when
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Initialize Local Variables when Dec
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Use TODO Comments for Temporary Cod
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Indent 4 Spaces for Blocks • Inde
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Fully Qualify Imports • List each
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Start JavaDoc Comments with 3 rd Pe
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Start Instance Variables with “m
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Never Ignore Exceptions • Avoid e
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Why Ignoring Exceptions Rule is Too
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Why Generic Exception Rule is (Argu
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Summary • Strictly follow convent
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Topics in This Section • Part I -
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Idea • Android philosophy -Activi
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Page 355 and 356:
Summary of Layout 355 jeudi 26 janv
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XML: Layout File: Divider (res/layo
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XML: Colors File (res/values/colors
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Java (LoanCalculatorActivity.java)
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Java (PaymentInfo.java) public clas
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Example: Results 365 jeudi 26 janvi
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Summary • Idea - Specify class na
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Example: Overview • Initial Activ
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XML: Manifest File Template (Androi
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XML: Strings File (res/values/strin
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Summary • Idea - Attach a Bundle
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Option 1: Attaching Entire Bundle t
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XML: Layout File (res/layout/main.x
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Java (IntentFilter1Activity.java) p
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Java (LoanBundler.java, Continued)
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Java (LoanCalculatorActivity, Conti
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More Reading • Tutorial: Intents
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jeudi 26 janvier 12 Intents, Intent
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jeudi 26 janvier 12 Invoking Activi
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Registering to Handle URIs • Matc
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Page 407 and 408:
Java (IntentFilter2Activity.java) p
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Summary • Idea - Embed query para
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XML: Manifest File Action Declarati
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Java (IntentFilter2Activity, Contin
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jeudi 26 janvier 12 Intents, Intent
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Page 431 and 432:
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Using TabActivity: Outline public c
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Option 1: A Single Image • Pros -
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XML Code for Dual-Image Icon
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Example: Overview • Initial Activ
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XML: Manifest File Action Declarati
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Java (TabbedActivity: Tab 2) 443 je
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Page 447 and 448:
Summary • Java (extends TabActivi
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Topics in This Section • Localiza
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Big Idea • Good news - Android’
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jeudi 26 janvier 12 Language © 201
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Steps • Make multiple folders wit
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How User Changes Device Language
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Example: The Android Resort • Ide
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Strings File: Spanish (res/values-e
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Manifest File (No Language-Based Ve
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Project Layout 466 jeudi 26 janvier
Page 468 and 469:
Results: Spanish 468 jeudi 26 janvi
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Graphical Layout Editor in Eclipse
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Changing the Language Programmatica
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Idea • Values can be specific to
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Page 478 and 479:
Strings File: General Spanish (res/
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Project Layout 480 jeudi 26 janvier
Page 482 and 483:
jeudi 26 janvier 12 Screen Orientat
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Steps • Make two folders: default
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Precedence of Folder Names • Idea
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Layout File: Landscape Mode (res/la
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Dimensions File: Landscape (res/val
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Results: English (Really Non-Spanis
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Results: Mexican Spanish 496 jeudi
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Example: Screen from Widgets Lectur
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jeudi 26 janvier 12 Display Resolut
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Common Approaches • Alternative 1
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Best Practices • For small icons
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More Reading • Developer’s Guid
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jeudi 26 janvier 12 Handling Screen
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Reminder: Preventing Screen Rotatio
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Summary: Saving Data • Override o
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The Bundle Class: Details • Putti
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Loan Payment Comparisons • Idea -
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Core Java Code public class Rotatio
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Core Java Code (Continued) 528 jeud
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Java Code: Saving State 530 jeudi 2
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Java Code: PaymentInfo public class
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Lifecycle Summary onSaveInstanceSta
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More Reading • JavaDoc: Activity
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jeudi 26 janvier 12 Network Program
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jeudi 26 janvier 12 Socket Basics
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Steps for Implementing a Client (Co
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Helper Class: SocketUtils • Idea
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jeudi 26 janvier 12 Example: NIST T
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Manifest File (AndroidManifest.xml)
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Values Files • res/values/strings
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} Main Activity, Continued (NistTim
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jeudi 26 janvier 12 Aside: String F
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Formatted Output: printf • Takes
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Controlling Formatting • Differen
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Printf Example: Controlling Width a
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Parsing Strings Using StringTokeniz
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Interactive Tokenizer: Example impo
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Parsing Strings using the split met
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Interactive Tokenizer: Example publ
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Example Welcome Messages • ftp.mi
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Manifest File (AndroidManifest.xml)
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Main Activity (FtpMessageActivity.j
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} Main Activity, Continued (FtpMess
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Page 588 and 589:
HTTP Request/Response: GET • Requ
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Using Telnet to Test Server Command
Page 592 and 593:
Example: Larry Ellison’s Home Pag
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Layout File: Portrait Mode (res/lay
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Values Files • res/values/strings
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Main Activity, Continued (UrlChecke
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Main Activity, Continued (UrlChecke
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Helper Classes • StatusLineParser
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Page 606 and 607:
Summary • Basics - Socket socket
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Topics in This Section • Part I (
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Big Idea • Many ways to communica
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URL and HttpURLConnection: Overview
Page 614 and 615:
Simple URL Methods: Example import
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HttpURLConnection: Details • Gett
Page 618 and 619:
URL Searcher • Idea -Print out al
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Layout File (res/layout/ url_search
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Main Activity (UrlSearcher1Activity
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Main Activity, Continued (UrlSearch
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Main Activity, Continued (UrlSearch
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Results 628 jeudi 26 janvier 12
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HttpClient • Idea -A popular clas
Page 632 and 633:
HttpClient: Reading Result of POST
Page 634 and 635:
HttpUtils 634 jeudi 26 janvier 12 p
Page 636 and 637:
Page 638 and 639:
XML Files • AndroidManifest.xml -
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} Main Activity, Continued (UrlSear
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jeudi 26 janvier 12 Aside: JSON For
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JSON: Example in JavaScript var per
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Popular Web Services that Send JSON
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JSONObject • Idea -A popular JSON
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Extracting Data From a JSONObject
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jeudi 26 janvier 12 Using JSONObjec
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JSONObject’s Algorithm for JSONif
Page 656 and 657:
Bean Properties: Examples Method Na
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Drawbacks of JSONification • Send
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JSONObject from Bean: Example Resul
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JSON-Based Loan Calculator Service
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Servlet, Continued 664 jeudi 26 jan
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Android Activity, Continued 666 jeu
Page 668 and 669:
Results 668 jeudi 26 janvier 12 htt
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Double Translate App • Idea - The
Page 672 and 673:
Main Activity, Continued 672 jeudi
Page 674 and 675:
Key Helper Class (TranslationUtils)
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Results: Medium-Difficulty Text 676
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Results: More Deliberately-Tricky T
Page 680 and 681:
More Reading • JavaDoc -HttpURLCo
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jeudi 26 janvier 12 Multithreaded P
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684 jeudi 26 janvier 12 Overview ©
Page 686 and 687:
Steps for Concurrent Programming
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Thread Mechanism One: Separate Runn
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Thread Mechanism One: Example publi
Page 692 and 693:
Helper Class public class ThreadUti
Page 694 and 695:
Pros and Cons of Approach • Advan
Page 696 and 697:
Review of Interfaces: Syntax • Sh
Page 698 and 699:
Thread Mechanism Two: Main App Impl
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Thread Mechanism Two: Example publi
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Page 704 and 705:
Review of Inner Classes • Class c
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Inner Class Implements Runnable: Te
Page 708 and 709:
} Thread Mechanism Three: Example (
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Page 712 and 713:
Pros and Cons • Separate class th
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Race Conditions • Idea - You writ
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} Race Conditions: Example (Continu
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Race Conditions: Solution? • Do t
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Arbitrating Contention for Shared R
Page 722 and 723:
722 jeudi 26 janvier 12 © 2011 Mar
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Methods in ExecutorService Class
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Lower-Level Threading • Use Threa
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Types of Task Queues • Executors.
Page 730 and 731:
Nasty Synchronization Bug public cl
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Synchronization Solution (Continued
Page 734 and 735:
Other Advanced Topics • wait/wait
Page 736 and 737:
More Reading • Books -Java Concur
Page 738 and 739:
Page 740 and 741:
740 jeudi 26 janvier 12 Overview ©
Page 742 and 743:
Nonresponsive GUI Controls • Prob
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jeudi 26 janvier 12 Updating UI Aft
Page 746 and 747:
Example: Multi-URL Validator • Id
Page 748 and 749:
Main Activity: Setup Code (Continue
Page 750 and 751:
Main Activity: Button Handler (Afte
Page 752 and 753:
Main Activity: Helper Methods 752 j
Page 754 and 755:
Page 756 and 757:
Displaying a Network Image • Idea
Page 758 and 759:
Making a View for an Image • Idea
Page 760 and 761:
Example: Unthreaded Image Viewer
Page 762 and 763:
Page 764 and 765:
View.post • Scenario -Total wait
Page 766 and 767:
Main Activity: Setup Code public cl
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Main Activity: Runnable Inner Class
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AsyncTask • Scenario - Total wait
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AsyncTask Details: Constructor •
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AsyncTask Details: doPostExecute
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Example: Multithreaded Image Viewer
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More Reading • JavaDoc -AsyncTask
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David Defour - Université de Perpignan

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