Android - CommonsWare

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If you are interested in a Warescription, visit the Warescription section of the CommonsWare Web site. You can find out when new releases of this book are available via: • The cw-android Google Group, which is also a great place to ask questions about the book and its examples • The commonsguy Twitter feed • The Warescription newsletter, which you can subscribe to off of your Warescription page Book Bug Bounty Find a problem in one of our books? Let us know! Be the first to report a unique concrete problem in the current digital edition, and we'll give you a coupon for a six-month Warescription as a bounty for helping us deliver a better product. You can use that coupon to get a new Warescription, renew an existing Warescription, or give the coupon to a friend, colleague, or some random person you meet on the subway. By "concrete" problem, we mean things like: • Typographical errors • Sample applications that do not work as advertised, in the environment described in the book • Factual errors that cannot be open to interpretation By "unique", we mean ones not yet reported. Each book has an errata page on the CommonsWare Web site; most known problems will be listed there. One coupon is given per email containing valid bug reports. We appreciate hearing about "softer" issues as well, such as: • Places where you think we are in error, but where we feel our interpretation is reasonable xxi Subscribe to updates at http://commonsware.com Special Creative Commons BY-SA 3.0 License Edition
• Places where you think we could add sample applications, or expand upon the existing material • Samples that do not work due to "shifting sands" of the underlying environment (e.g., changed APIs with new releases of an SDK) However, those "softer" issues do not qualify for the formal bounty program. Questions about the bug bounty, or problems you wish to report for bounty consideration, should be sent to bounty@commonsware.com. Source Code And Its License The source code samples shown in this book are available for download from the CommonsWare Web site – just choose the tab of the book version you want, and click on the Source Code link for that tab. All of the Android projects are licensed under the Apache 2.0 License, in case you have the desire to reuse any of it. If you wish to use the source code from the CommonsWare Web site, bear in mind a few things: 1. The projects are set up to be built by Ant, not by Eclipse. If you wish to use the code with Eclipse, you will need to create a suitable Android Eclipse project and import the code and other assets. 2. You should delete build.xml, then run android update project -p ... (where ... is the path to a project of interest) on those projects you wish to use, so the build files are updated for your Android SDK version. Creative Commons and the Four-to-Free (42F) Guarantee Each CommonsWare book edition will be available for use under the Creative Commons Attribution-Noncommercial-Share Alike 3.0 license as of the fourth anniversary of its publication date, or when 4,000 copies of the edition have been sold, whichever comes first. That means that, once xxii Subscribe to updates at http://commonsware.com Special Creative Commons BY-SA 3.0 License Edition
Page 1 and 2: The Busy Coder's Guide to Android D
Page 3 and 4: The Busy Coder's Guide to Android D
Page 5 and 6: GPS................................
Page 7 and 8: Using Selection Widgets............
Page 9 and 10: Embedding the WebKit Browser.......
Page 11 and 12: Styled Text........................
Page 13 and 14: query()............................
Page 15 and 16: You Make the Call!.................
Page 17 and 18: Handling API Changes...............
Page 19 and 20: your operating system does not supp
Page 21: The book does not cover in any deta
Page 25 and 26: Subscribe to updates at http://comm
Page 29 and 30: The Big Picture • Keyboards, if t
Page 31 and 32: Content Providers The Big Picture C
Page 35 and 36: Projects and Targets To test your a
Page 37 and 38: Projects and Targets • libs/, whi
Page 39 and 40: Projects and Targets You also indic
Page 41 and 42: Projects and Targets In the preced
Page 43 and 44: Projects and Targets ... At the
Page 45 and 46: Projects and Targets You can create
Page 47 and 48: Projects and Targets • Only ask f
Page 51 and 52: Creating a Skeleton Application For
Page 53 and 54: Creating a Skeleton Application The
Page 55 and 56: Creating a Skeleton Application Fig
Page 59 and 60: Using XML-Based Layouts Android's S
Page 61 and 62: Using XML-Based Layouts Since this
Page 63 and 64: } public void onClick(View view) {
Page 67 and 68: Employing Basic Widgets • android
Page 69 and 70: Employing Basic Widgets Each widget
Page 71 and 72: Employing Basic Widgets For this pr
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Employing Basic Widgets The corresp
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Turn the Radio Up Employing Basic W
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It's Quite a View Employing Basic W
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Subscribe to updates at http://comm
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Thinking Linearly Working with Cont
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Working with Containers • Set all
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Example Working with Containers Let
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} } } Working with Containers case
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Working with Containers If we toggl
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Working with Containers Positions R
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Working with Containers android:lay
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Working with Containers first in th
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Putting Cells in Rows Working with
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Working with Containers You can als
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Working with Containers
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Working with Containers the remaini
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Using Selection Widgets listbox. Th
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Using Selection Widgets android:lay
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Using Selection Widgets Then, rathe
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Using Selection Widgets the setDrop
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Using Selection Widgets Figure 24.
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Using Selection Widgets For example
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Using Selection Widgets TextView, w
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Using Selection Widgets something n
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Using Selection Widgets Figure 28.
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Using Selection Widgets • android
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Getting Fancy With Lists For exampl
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Getting Fancy With Lists A Dynamic
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Getting Fancy With Lists In the sam
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And you want happy users, right? Ge
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Using the Holder Pattern Getting Fa
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Getting Fancy With Lists super.onCr
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} Getting Fancy With Lists public v
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Getting Fancy With Lists So, let's
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Getting Fancy With Lists 1. While w
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Getting Fancy With Lists Figure 33.
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Getting Fancy With Lists So if we w
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Getting Fancy With Lists layout.set
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Getting Fancy With Lists public Rat
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Getting Fancy With Lists Details of
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Employing Fancy Widgets and Contain
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The Input Method Framework Of cours
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The Input Method Framework H
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The Input Method Framework Numbers
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The Input Method Framework android:
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The Input Method Framework Figure 5
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Applying Menus will appear, showing
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Applying Menus appropriate behavior
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Applying Menus @Override public voi
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Applying Menus Figure 56. The MenuD
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Applying Menus Figure 59. The same
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Applying Menus • You must
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Applying Menus In the layout XML sh
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Fonts 178 Subscribe
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The results? Fonts Figure 61. The F
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Fonts And, of course, Android's int
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android:layout_width="fill_parent"
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Embedding the WebKit Browser on the
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Embedding the WebKit Browser • go
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Running this activity gives us: Emb
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Showing Pop-Up Messages from the cu
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Showing Pop-Up Messages android:lay
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Showing Pop-Up Messages Figure 66.
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Dealing with Threads - merely creat
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Dealing with Threads super.onCreate
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Runnables Dealing with Threads If y
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Dealing with Threads AsyncTask, Gen
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import android.widget.ArrayAdapter;
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Dealing with Threads Since we elect
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Dealing with Threads Figure 68. The
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Handling Activity Lifecycle Events
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onPause() and onResume() Handling A
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What's Your Intent? Creating Intent
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Creating Intent Filters Basically,
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Narrow Receivers Creating Intent Fi
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Launching Activities and Sub-Activi
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} }); } } Launching Activities and
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Handling Rotation control over the
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Uri contact=null; Handling Rotation
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Handling Rotation Figure 74. The Ro
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Handling Rotation viewButton.setOnC
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Handling Rotation android:versionNa
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Handling Rotation To block Android
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Handling Rotation Note that Android
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Working with Resources • Strings,
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Working with Resources ((TextView)f
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@Override public void onCreate(Bund
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Got the Picture? Working with Resou
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Working with Resources Figure 79. T
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Working with Resources public void
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10px 1in Working with Resources In
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Working with Resources Different St
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Working with Resources • There ca
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Working with Resources 2. Next, And
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Using Preferences 3. getDefaultShar
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Using Preferences allowing users to
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Using Preferences Figure 81. The Si
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Using Preferences The fields for
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Using Preferences Any children of P
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Using Preferences Figure 85. The ch
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Philadelphia Pittsburgh Allentown/B
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Using Preferences Figure 88. Editin
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Managing and Accessing Local Databa
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Accessing Files application package
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} } Accessing Files .makeText(this,
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android:text="Close" /> Accessing
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Accessing Files openFileInput() to
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Leveraging Java Libraries • Size:
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android:layout_height="wrap_content
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Leveraging Java Libraries Figure 96
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Reviewing the Script Leveraging Jav
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Communicating via the Internet styl
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Communicating via the Internet We h
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Communicating via the Internet for
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Pieces of Me Using a Content Provid
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Using a Content Provider This metho
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Using a Content Provider • The pr
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Using a Content Provider To delete
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First, Some Dissection Building a C
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onCreate() Building a Content Provi
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Building a Content Provider } else
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Building a Content Provider WHERE c
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getType() Building a Content Provid
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Building a Content Provider
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Mother, May I? Requesting and Requi
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Requesting and Requiring Permission
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Requesting and Requiring Permission
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Service with Class Creating a Servi
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Creating a Service immune to garbag
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Creating a Service For example, the
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Creating a Service @Override protec
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The Ties That Bind Invoking a Servi
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Invoking a Service private void upd
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Alerting Users Via Notifications In
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import android.app.Activity; import
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Alerting Users Via Notifications 4.
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Accessing Location-Based Services L
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Accessing Location-Based Services
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Accessing Location-Based Services
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Mapping with MapView and MapActivit
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Rugged Terrain Mapping with MapView
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Handling Telephone Calls Report To
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Handling Telephone Calls The activi
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Development Tools Figure 105. ReadW
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Development Tools Figure 107. Hiera
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Development Tools Figure 109. Hiera
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Development Tools What may not be i
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Logging Development Tools Figure 11
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Development Tools Figure 114. DDMS
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Development Tools Figure 116. DDMS
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Development Tools Figure 118. Simul
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Put It On My Card Development Tools
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Taking the Default Handling Multipl
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Handling Multiple Screen Sizes •
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Handling Multiple Screen Sizes Thes
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Density-Based Sets Handling Multipl
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Handling Multiple Screen Sizes •
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Handling Multiple Screen Sizes size
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Handling Multiple Screen Sizes Repl
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Handling Multiple Screen Sizes scal
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Handling Multiple Screen Sizes R.st
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Handling Multiple Screen Sizes Figu
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Handling Multiple Screen Sizes />
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Handling Multiple Screen Sizes Now
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super.onCreate(savedInstanceState);
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Handling Multiple Screen Sizes In s
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Dealing With Devices Fortunately, s
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Dealing With Devices Market are tes
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Dealing With Devices The CLIQ also
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Not all devices will be this way. H
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The lessons to take from this: Hand
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Handling Platform Changes Note that
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Wrapping the API Handling Platform
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Handling Platform Changes } else {
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} } Handling Platform Changes publi
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You might also consider: Where Do W
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ContentManager.....................
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PreferenceCategory.................
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INTEGER............................
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getSpeed().........................
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setColumnShrinkable()..............
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android:paddingBottom..............
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