Android™ Application Development - Bahar Ali Khan

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400 Android, getting started Android, getting started, 19–44 application types, 29–30 creating fi rst activity, 24–29 developing for, 30–37 development tools, 42–43 overview, 19–20 summary, 44 to-do list example, 37–41 what you need to begin, 20–24 Android Asset Packaging Tool (AAPT), 42 Android Debug Bridge (ADB), 42–43 Android Developer Tool (ADT) plug-in, 21–24 Android Dialog, 143–147 Android Interface Defi nition Language (AIDL), 356–361 animations advanced development, 361–365 animating layouts and View Groups, 370–372 animating sliding user interface example, 365–370 Canvas drawing, best practices, 381 externalizing, 57–59 skinning applications with themes, 372–373 annotations. See Overlays anonymous actions, 130–132 answering calls, 339 anti-aliasing, 379–380 APIs (Application Programming Interfaces) Android libraries, 15–16 hardware. See hardware APIs SDK contents, 12 application layers vs. Android, 3 decoupling with Content Providers, 189 in software stack, 14 application manifest, 134 Application Programming Interfaces (APIs). See APIs (Application Programming Interfaces) Application Unresponsive dialog, 133 applications, 45–73 Activity classes, 73 Activity creation, 66–67 Activity life cycle, 68–73 application manifest, 46–49 architecture, 14–15 data storage, retrieval and sharing. See data storage, retrieval and sharing defi ned, 46 externalizing resources, 52–59 life-cycle, 50–51 Manifest Editor, 49–50 overview, 45 priority and process states, 51–52 resources for different languages and hardware, 63–64 running/debugging, 26–27 runtime confi guration changes, 64–65 skinning with themes, 372–373 summary, 73 to-do list example, 37–41 to-do list resources example, 62–63 types, 44 using resources, 59–62 applying tweened animations, 364 arc drawing, 374 Array List of Strings, 300 ArrayAdapter creating earthquake viewer, 152 defi ned, 136–141 Emergency Responder example, 300–301 setting preferences, 168–169 artifi cial horizons creating, 330–333 updating compass example, 385 at (@), 61 attributes application manifest, 47–49 Intent Filter, 121–122 managing with Manifest Editor, 50 referencing resources, 61 runtime confi guration changes, 65 audio alert Notifi cations, 270–271 audio recording, 317–319 authority, Content Provider, 190, 197 auto-retry functionality, 304–306 B background animations, 372 background processes, 52 background Services, 249–277 Alarms, 273–274 of Android, 6–7 binding Activities to, 258–259 creating and controlling, 250–252 defi ned, 29–30 earthquake monitoring service example, 252–258 environment considerations, 34 notifi cations, 265–273 overview, 249–250 summary, 276–277 toasts, 262–264 unique Android features, 10 updating earthquake example with Alarms, 274–276 worker threads, 259–262 bandwidth, 142 base classes, 27 binding Activities to Services, 258–259 adapters, 136–141 exposing IPC interface, 360–361 to GTalk Service, 281–282 bitmaps Bitmap object, 373 Canvas drawing, best practices, 381 externalizing, 56 black theme, 373 blocking contacts, 285 Bluetooth, 339–345 blurring Paint, 377–378 bonding Bluetooth devices, 341–342 Broadcast Intents communicating with Services, 259 defi ned, 132–136 enforcing permissions, 355 instant messaging, 280 listening for SMS messages, 294–296 P2P communication, 289–291 Broadcast Receivers Alarms and, 273 automating Emergency Responder, 311 defi ned, 46 Emergency Responder example, 301–302, 305–306 listening for broadcasts with, 133–135 listening for SMS messages, 295–296 monitoring network connectivity, 346–347 OTA Intents, 289–291 permissions, 355 receiver tags, 48 summary, 157 tracking SMS messages, 292–294 Browser Content Provider, 192 button interaction, 396–397 C caching Internet resources, 142 mobile device storage, 31 callbacks, 320–321 CallLog Content Provider, 192 calls, phone Android telephony, 333–339 using Bluetooth, 339–345 cameras Android features, 6 using, 319–321 canceling Alarms, 274 Canvas drawing Android, advanced development, 373–374 best practice, 380–381 compass face example, 381–389 controls, 89–90 hardware acceleration for 2D graphics, 380 improving paint quality with anti-aliasing, 379–380 map Overlays, 389–390 painting, 374–379 SurfaceView , 390–392 categories, Intent, 121 cell location, 336 Chat Listeners defi ned, 281 managing group chats, 288–289 receiving text messages, 287 chat rooms, 287–288
Chat Sessions, 281, 286–289 checkboxes menu items, 102–103 preferences, 168–169 child threads, 259–262 circle drawing, 374 CLAMP, 377 classes Activity, 73 animating layouts and View Groups, 370 Animation, 362–364 BluetoothDevice, 339–345 CAMERA, 319–321 Canvas. See Canvas drawing Content Providers, 192–193 Cursor, 176–177 Dialog, 144–147 extending Activity, 66–67 layout, 79 Linkify, 116–117 map, 224 Overlay. See Overlays passing custom objects, 356–358 Phone, 338–339 Service. See Services Vibrator, 350–351 View and SurfaceView, 88 clear text functionality, 86–87 click handling. See Overlays click listeners contact example, 127–128 menu items, 103 coarse permissions, 213–214 code registering Broadcast Receivers in, 134–135 using resources in, 59–60 ColorFilters, 378 colors creating simple values, 55 updating compass example, 382–384 using translucency, 375 column defi nitions, 176 communication Bluetooth, 342–344 interapplication, 7 P2P communication. See P2P (peer-to-peer) communication compasses Canvas drawing example, 381–389 Compass View example, 93–98 creating, 330–333 defi ned, 323 determining orientation, 329–330 orientation sensors, 329–330 components, application, 46–49 compound controls, 85–87 condensed titles, 103 confi gurations, Wi-Fi, 350 confi rmation of SMS delivery, 292–294 connectivity Bluetooth, 339–345 GTalk Connections, 281, 282–286 Internet resources, 141–143 mobile device limitations, 32–33 monitoring mobile data, 337–338 network and Wi-Fi, 345–350 consistency externalizing strings to maintain, 54 with themes, 372–373 contacts Content Provider, 192–194 example, 124–129 roster, 283–286 Content Providers contact roster, 283–286 creating earthquake, 197–205 creating new, 194–197 defi ned, 7, 46, 160 introducing, 189–192 Media Store, 318 native, 192–194 permissions, 355 provider tags, 48 updating with Services, 256–258 Content Resolvers creating new Content Provider, 195 defi ned, 190 using earthquake Content Provider, 203–204 Content Values, 176–177 ContentSlider Activity, 365–370 Context Menus defi ned, 105–107 to-do list example, 107–112 Controller, Map, 227–228 controls Android widgets, 78–79 background Services, 250–252 Bluetooth, 340 creating compound, 85–87 creating custom, 88 device vibration, 350–351 interactive, 393–398 Map View, 224–226 phone, 338–339 specialist Dialog boxes, 146 SurfaceView , 390–393 using custom, 98–99 Views. See Views costs fi nding Location Providers based on, 212–213 mobile device limitations, 33 Criteria fi nding Location Providers based on, 212–213 updating location example, 217–218 current themes, 62 Cursors binding Views to, 136, 141 Content Values and, 176–177 extracting results, 181–182 querying Content Providers, 190 querying databases, 181 data storage, retrieval and sharing custom actions, 290 custom class objects, 356–358 custom controls Compass View example, 93–98 creating, 88 using, 98–99 custom link strings, 116–117 custom Toasts, 263–264 D Dalvik, 11–12 Dalvik Debug Monitoring Service (DDMS) ADT features, 22 defi ned, 42–43 Dalvik Virtual Machine (VM), 14 data AIDL support types, 356 binding, 136–141 monitoring connectivity, 337–338 tags, 122 transmitting with Bluetooth, 343–344 data messaging with Google Talk, 8 handling SMS, 296–297 sending and receiving, 289–291 sending SMS, 294 data sources Content Providers as, 189 exposing access to, 195–197 playing media, 316–317 data storage, retrieval and sharing, 159–206 Content Providers, 189–192 Content Providers, creating earthquake, 197–205 Content Providers, creating new, 194–197 Cursors and content values, 176–177 database design considerations, 180 database querying, 181 databases, 175 databases, working with, 177–179 developing for mobile devices, 31 extracting Cursor results, 181–182 native Content Providers, 192–194 overview, 159–160 preferences, creating and saving, 161 preferences, creating for earthquake viewer, 165–174 retrieving Shared Preferences, 161–162 rows, adding/updating/removing, 182–183 saving Activity state, 162–165 saving and loading fi les, 174–175 saving application data, 160–161 saving techniques, 160 saving to-do list example, 183–189 SQLite, 7, 176 SQLiteOpenHelper, 179–180 summary, 205–206 401
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Professional Android Application su
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Professional Android Application D
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Professional Android Application D
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About the Author Originally from Pe
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Acknowledgments A big thank you goe
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Contents Chapter 2: Getting Started
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Contents xii Saving and Loading Fil
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Contents Chapter 10: Accessing Andr
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Introduction Now is an exciting tim
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Introduction covered, you can move
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Introduction At http://p2p.wrox.com
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Chapter 1: Hello, Android 2 Using t
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Chapter 1: Hello, Android An Open P
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Chapter 1: Hello, Android 6 ❑ ❑
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Chapter 1: Hello, Android 8 When ma
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Chapter 1: Hello, Android 10 In mar
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Chapter 1: Hello, Android 12 Each A
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Chapter 1: Hello, Android 14 ❑ Da
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Chapter 1: Hello, Android 16 ❑ an
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Getting Started All you need to sta
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Chapter 2: Getting Started Unless o
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Installing the ADT Plug-in Install
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Chapter 2: Getting Started 3. In th
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Chapter 2: Getting Started If every
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} lp = new LinearLayout.LayoutParam
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❑ ❑ ❑ ❑ ❑ Small screens w
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Chapter 2: Getting Started on how t
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Chapter 2: Getting Started To start
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Ensuring a Seamless User Experience
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Figure 2-11 Chapter 2: Getting Star
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} myListView.setAdapter(aa); Chapte
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Chapter 2: Getting Started A number
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Creating Applications and Activitie
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Chapter 3: Creating Applications an
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Creating Resources Chapter 3: Creat
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❑ ❑ #ARGB #ARRGGBB Chapter 3: C
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android:startOffset=”500” andro
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Referencing Resources in Resources
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} } Chapter 3: Creating Application
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Chapter 4: Creating User Interfaces
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Chapter 5: Intents, Broadcast Recei
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Data Storage, Retrieval, and Sharin
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Chapter 6: Data Storage, Retrieval,
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} Chapter 6: Data Storage, Retrieva
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} } } Chapter 6: Data Storage, Retr
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Querying Your Database Chapter 6: D
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} // Open or create the database to
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Adding, Updating, and Deleting Cont
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} } Chapter 6: Data Storage, Retrie
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} } break; Chapter 6: Data Storage,
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Maps, Geocoding, and Location-Based
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Chapter 7: Maps, Geocoding, and Loc
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} Chapter 7: Maps, Geocoding, and L
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Summary Chapter 7: Maps, Geocoding,
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Chapter 8: Working in the Backgroun
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Peer-to-Peer Communication In this
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Chapter 9: Peer-to-Peer Communicati
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} Chapter 9: Peer-to-Peer Communica
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Handling Subscription Requests Chap
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Figure 9-4 Chapter 9: Peer-to-Peer
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Accessing Android Hardware Android
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Chapter 10: Accessing Android Hardw
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content.put(Audio.AudioColumns.DATE
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public void onShutter() { // TODO D
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public void setPitch(float pitch) {
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Android™ Application Development - Bahar Ali Khan

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