Symbols
?. 91
<application> 541
<fragment> 297
<fragment> element 297
<receiver> 510
<uses-permission> 490
Code Reformatting 69
@layout/toolbar_fragment 306
:: operator 93
.well-known folder 735
A
AbsoluteLayout 166
ACCESS_COARSE_LOCATION permission 682
ACCESS_FINE_LOCATION permission 682
ACTION_CREATE_DOCUMENT 649
ACTION_CREATE_INTENT 649
ACTION_DOWN 272
ACTION_MOVE 272
ACTION_OPEN_DOCUMENT 643
ACTION_OPEN_DOCUMENT intent 642
ACTION_POINTER_DOWN 272
ACTION_POINTER_UP 272
ACTION_UP 272
ACTION_VIEW 505
Active / Running state 140
adding to a project 225
adding views in Java code 249
class 143
creation 14
Entire Lifetime 147
Foreground Lifetime 147
lifecycle methods 145
lifecycles 137
returning data from 488
state change example 151
state changes 143
states 140
Visible Lifetime 147
ActivityCompat class 687
Activity Lifecycle 139
Activity Manager 76
Activity Stack 139
Actual screen pixels 236
adb
command-line tool 55
list devices 55
restart server 56
ADB
enabling on Android devices 55
Linux configuration 58
macOS configuration 56
overview 55
testing connection 58
Windows configuration 57
addCategory() method 509
addView() method 242
ADD_VOICEMAIL permission 682
Advanced Profiling 749
android
commandline tool 36
exported 541
gestureColor 291
layout_behavior property 471
onClick 299
uncertainGestureColor 291
Android
Activity 77
architecture 73
events 263
intents 78
onClick Resource 263
runtime 74
SDK Packages 6
android.app 74
Android Architecture Components 315
android.content 74
android.content.Intent 487
android.database 74
Android Debug Bridge. See ADB
Android Design Support Library 427
Android Development
System Requirements 3
Android Devices
designing for different 165
android.graphics 74
android.hardware 74
android.intent.action 515
android.intent.action.BOOT_COMPLETED 542
android.intent.action.MAIN 505
android.intent.category.LAUNCHER 505
Android Libraries 74
AndroidManifest.xml file 226
android.media 75
Android Monitor tool window 33, 155
Android Native Development Kit 75
android.net 75
android.opengl 75
android.os 75
android.permission.RECORD_AUDIO 691
android.print 75
Android Profiler 749
Android Project
create new 13
android.provider 75
Android SDK Location
identifying 8
Android SDK Packages
version requirements 7
Android SDK Tools
command-line access 8
Linux 9
macOS 10
Windows 7 8
Windows 8 9
Android Software Stack 73
Android Storage Access Framework 642
Android Studio
changing theme 53
downloading 3
Editor Window 48
installation 4
Linux installation 5
macOS installation 4
Main Window 47
Menu Bar 48
Navigation Bar 48
Project tool window 49
setup wizard 5
Status Bar 48
Toolbar 48
updating 11
Welcome Screen 47
Windows installation 4
android.text 75
Android tool window 51
android.util 75
android.view 75
android.view.View 168
android.view.ViewGroup 165, 168
Android Virtual Device. See AVD
overview 29
Android Virtual Device Manager 29
android.webkit 75
android.widget 75
APK analyzer 778
APK file 772
split 782
APK File
analyzing 778
APK Signing 810
APK Wizard dialog 770
App Architecture
modern 315
AppBar
anatomy of 469
appbar_scrolling_view_behavior 471
App Bundles 767
creating 772
overview 767
revisions 777
uploading 774
AppCompatActivity class 144
Application
stopping 33
Application Context 79
Application Framework 75
Application Manifest 79
Application Resources 79
App Link
Adding Intent Filter 742
Assistant 737
Digital Assets Link file 735
Intent Filter Handling 742
Intent Filters 733
Intent Handling 734
Testing 745
tutorial 737
URL Mapping 739
website association 745
App Link Assistant 737
App Links 733
overview 733
Apply Changes 257
Apply Changes and Restart Activity 257
Apply Code Changes 257
fallback settings 259
options 257
Run App 257
tutorial 259
Architecture Components 315
ART 74
as 93
as? 93
assetlinks.json 735
async 527
AsyncTask
doInBackground() method 520
example 517
onPostExecute() method 520
onPreExecute() method 520
onProgressUpdate() method 520
publishProgress() method 521
subclassing 519
thread pool executor 522
Attribute Keyframes 394
Audio
supported formats 689
Audio Playback 689
Audio Recording 689
Autoconnect Mode 198
AVD
configuration files 38
creation 30
overview 29
renaming 38
running an application 31
starting 31
Startup size and orientation 31
B
Background Process 138
Barriers 192
adding 210
constrained views 192
Base APK file 782
Baseline Alignment 191
beginTransaction() method 298
Binding Expressions 339
one-way 339
two-way 340
bindService() method 540, 553, 558
Biometric Authentication 759
callbacks 763
overview 759
tutorial 759
Biometric Prompt 764
BitmapFactory 644
Bitwise AND 99
Bitwise Inversion 98
Bitwise Left Shift 100
Bitwise OR 99
Bitwise Right Shift 100
Bitwise XOR 99
black activity 14
Blank template 169
Blueprint view 197
BODY_SENSORS permission 682
Boolean 86
Bottom Up 753
adding to a project 554
Implementing the Binder 554
Interaction options 553
BoundService class 555
Broadcast Intent 509
example 512
sending 512
Sticky 511
Broadcast Receiver 509
adding to manifest file 514
creation 513
BroadcastReceiver class 510
BroadcastReceiver superclass 513
BufferedReader object 656
Build Variants 810
Build Variants tool window 51
Bundle class 160
Bundled Notifications 576
C
Calendar permissions 682
Call Chart 754
CALL_PHONE permission 682
CAMERA permission 682
Camera permissions 682
cancelAndJoin() 528
cancelChildren() 527
CancellationSignal 764
Canvas class 728
CardView
example 453
layout file 451
responding to selection of 459
CardView class 451
CATEGORY_OPENABLE 642
C/C++ Libraries 75
Chain bias 220
chain head 190
chains 190
Chains
creation of 217
Chain style
changing 219
chain styles 190
Char 86
CharSequence 161
CheckBox 165
checkSelfPermission() method 686
Code completion 64
Code Editor
basics 61
Code completion 64
Code Generation 66
Code Reformatting 69
Document Tabs 62
Editing area 62
Gutter Area 62
Live Templates 70
Splitting 63
Statement Completion 65
Status Bar 63
Code Generation 66
code samples
download 1
CollapsingToolbarLayout
example 472
introduction 472
parallax mode 472
pin mode 472
setting scrim color 475
setting title 475
with image 472
Color class 730
COLOR_MODE_MONOCHROME 704, 724
com.android.application 785
com.android.dynamic-feature 785
Common Gestures 279
detection 279
Communicating Sequential Processes 525
Companion Objects 123
Component tree 17
Configuration APK file 782
Constraint Bias 189
adjusting 203
ConstraintLayout
advantages of 195
Availability 196
Barriers 192
Baseline Alignment 191
chain bias 220
chain head 190
chains 190
chain styles 190
Constraint Bias 189
Constraints 187
conversion to 214
convert to MotionLayout 401
deleting constraints 202
guidelines 209
Guidelines 192
manual constraint manipulation 199
overview of 187
Spread chain 190
Spread inside 219
Spread inside chain 190
tutorial 225
using in Android Studio 197
Widget Group Alignment 213
ConstraintLayout chains
creation of 217
in layout editor 217
ConstraintLayout Chain style
changing 219
Constraints
deleting 202
ConstraintSet
addToHorizontalChain() method 244
addToVerticalChain() method 244
alignment constraints 243
apply to layout 242
applyTo() method 242
centerHorizontally() method 243
centerVertically() method 243
chains 243
clear() method 244
clone() method 243
connect() method 242
connect to parent 242
constraint bias 243
copying constraints 243
create 242
create connection 242
createHorizontalChain() method 243
createVerticalChain() method 243
guidelines 244
removeFromHorizontalChain() method 244
removeFromVerticalChain() method 244
removing constraints 244
rotation 245
scaling 244
setGuidelineBegin() method 244
setGuidelineEnd() method 244
setGuidelinePercent() method 244
setHorizonalBias() method 243
setRotationX() method 245
setRotationY() method 245
setScaleX() method 244
setScaleY() method 244
setTransformPivot() method 245
setTransformPivotX() method 245
setTransformPivotY() method 245
setVerticalBias() method 243
sizing constraints 243
tutorial 249
view IDs 251
ConstraintSet.PARENT_ID 242
Constraint Sets 242
ConstraintSets
configuring 390
Contacts permissions 682
container view 165
Content Provider 76
overview 79
Context class 79
CoordinatorLayout 166, 469, 471
Coroutine Builders 527
async 527
coroutineScope 527
launch 527
runBlocking 527
supervisorScope 527
withContext 527
Coroutine Dispatchers 526
Coroutines 525
adding libraries 533
channel communication 531
GlobalScope 526
returning results 529
Suspend Functions 526
suspending 528
tutorial 533
ViewModelScope 526
vs. Threads 525
coroutineScope 527
Coroutine Scope 526
CPU Profiler 752
createPrintDocumentAdapter() method 719
Custom Accessors 121
Custom Attribute 391
Custom Document Printing 707, 719
Custom Gesture
recognition 285
Custom Print Adapter
implementation 721
Custom Print Adapters 719
Cycle Editor 419
Cycle Keyframe 399
Cycle Keyframes
overview 415
D
dangerous permissions 681
list of 682
Dark Theme 33
enable on device 33
Data Access Object (DAO) 606
live updates 636
SQL query 636
Database Rows 600
Database Schema 599
Database Tables 599
Data binding
binding expressions 339
Data Binding 318
binding classes 338
enabling 344
event and listener binding 340
key components 335
overview 335
tutorial 343
variables 338
with LiveData 318
DDMS 33
Debugging
enabling on device 55
Default Function Parameters 113
deltaRelative 395
Density-independent pixels 235
Density Independent Pixels
converting to pixels 254
Device Definition
custom 182
Digital Asset Link file 746
Digital Assets Link file 735
Direct Reply Input 586
Direct Reply Notification 581
Dispatchers.Default 527
Dispatchers.IO 526
Dispatchers.Main 526
document provider 641
dp 235
Dynamic Delivery 784
Dynamic Feature APK 782
Dynamic Feature Module
architecture 781
overview 781
removal 806
tutorial 791
Dynamic Feature Modules
deferred installation 787
handling of large 788
Dynamic Feature Support
adding to project 791
Dynamic State 145
saving 159
E
Elvis Operator 93
Empty Process 139
Empty template 169
Emulator
battery simulation 42
cellular configuration 42
configuring fingerprints 44
creation 30
directional pad 42
extended control options 41
Extended controls 41
fingerprint 42
location configuration 41
phone settings 42
resize 41
rotate 40
Screen Record 42
Snapshots 42
starting 31
take screenshot 40
toolbar 39
toolbar options 39
Virtual Sensors 42
zoom 40
enabling ADB support 55
Energy Profiler 758
Escape Sequences 87
Event Handling 263
example 264
Event Listener 266
Event Listeners 264
Event Log tool window 51
Events
consuming 267
explicit
intent 78
explicit intent 487
Explicit Intent 487
Extended Control
options 41
F
Favorites tool window 51
Files
switching between 62
findPointerIndex() method 272
findViewById() 133
Fingerprint
emulation 44
Fingerprint authentication
device configuration 760
permission 760
steps to implement 759
Fingerprint Authentication
overview 759
tutorial 759
FLAG_INCLUDE_STOPPED_PACKAGES 509
Flame Chart 754
flexible space area 469
Float 86
floating action button 14, 170, 427
changing appearance of 431
margins 428
overview of 427
removing 171
sizes 428
Foldable Devices 147
multi-resume 147
Foldable Emulator 592
Foldables 591
Foreground Process 138
Fragment
creation 295
event handling 299
FragmentActivity class 144
Fragment Communication 299
FragmentPagerAdapter class 442
Fragments 295
adding in code 298
duplicating 439
example 303
overview 295
FrameLayout 166
Function Parameters
variable number of 113
Functions 111
G
Gesture Builder Application 285
building and running 286
Gesture Detector class 279
GestureDetectorCompat 282
instance creation 282
GestureDetectorCompat class 279
GestureDetector.OnDoubleTapListener 279, 280
GestureDetector.OnGestureListener 280
GestureLibrary 285
GestureLibrary class 285
GestureOverlayView 285
configuring color 291
configuring multiple strokes 291
GestureOverlayView class 285
GesturePerformedListener 285
Gestures
interception of 291
Gestures File
creation 286
extract from SD card 287
loading into application 288
GET_ACCOUNTS permission 682
getAction() method 515
getId() method 242
getIntent() method 488
getPointerCount() method 272
getPointerId() method 272
getService() method 557
GlobalScope 526
GNU/Linux 74
Google Cloud Print 702
Google Drive 642
printing to 702
Google Play Developer Console 768
Gradle
APK signing settings 814
Build Variants 810
command line tasks 815
dependencies 809
Manifest Entries 810
overview 809
sensible defaults 809
Gradle Build File
top level 810
Gradle Build Files
module level 812
Gradle tool window 51
GridLayout 166
GridLayoutManager 449
H
Handler class 562
Higher-order Functions 115
HP Print Services Plugin 701
HTML printing 705
HTML Printing
example 709
I
Image Printing 704
Immutable Variables 88
implicit
intent 78
implicit intent 487
Implicit Intent 489
Implicit Intents
example 501
in 235
Initializer Blocks 121
In-Memory Database 612
Inner Classes 122
Instant Dynamic Feature Module 782
IntelliJ IDEA 81
Intent 78
explicit 78
implicit 78
Intent Availability
checking for 491
Intent.CATEGORY_OPENABLE 649
intent filters 487
Intent Filters 490
App Link 733
intent resolution 490
Intents 487
overview 487
Intent Service 539
IntentService 546
IntentService class 539, 542, 543
Intent URL 503
is 93
isInitialized property 93
J
Java
convert to Kotlin 81
Java Native Interface 75
JetBrains 81
Jetpack 315
overview 315
join() 527
K
KeyAttribute 394
Keyboard Shortcuts 52
Cycle Editor 419
tutorial 415
Keyframe 407
Keyframes 394
KeyFrameSet 424
KeyPosition 395
deltaRelative 395
parentRelative 395
pathRelative 396
Keystore File
creation 770
KeyTrigger 399
Killed state 140
Kotlin
accessing class properties 121
and Java 81
arithmetic operators 95
assignment operator 95
augmented assignment operators 96
bitwise operators 98
Boolean 86
break 106
breaking from loops 105
calling class methods 121
Char 86
class declaration 117
class initialization 118
class properties 118
Companion Objects 123
conditional flow control 107
continue labels 106
continue statement 106
convert from Java 81
Custom Accessors 121
data types 85
decrement operator 96
Default Function Parameters 113
defining class methods 118
do ... while loop 105
Elvis Operator 93
equality operators 97
Escape Sequences 87
expression syntax 95
Float 86
flow control 103
for-in statement 103
function calling 112
Functions 111
Higher-order Functions 115
if ... else ... expressions 108
if expressions 107
Immutable Variables 88
increment operator 96
inheritance 127
Initializer Blocks 121
Inner Classes 122
introduction 81
Lambda Expressions 114
let Function 91
Local Functions 112
logical operators 97
looping 103
Mutable Variables 88
Not-Null Assertion 91
Nullable Type 90
Overriding inherited methods 130
playground 82
Primary Constructor 118
properties 121
range operator 98
Safe Call Operator 90
Secondary Constructors 118
Single Expression Functions 112
String 86
subclassing 127
Type Annotations 89
Type Casting 93
Type Checking 93
Type Inference 89
variable parameters 113
when statement 108
while loop 104
L
Lambda Expressions 114
lateinit 92
Late Initialization 92
launch 527
launcher activity 226
layout_collapseMode
parallax 474
pin 474
layout_constraintDimentionRatio 222
layout_constraintHorizontal_bias 220
layout_constraintVertical_bias 220
layout editor
ConstraintLayout chains 217
Autoconnect Mode 198
code mode 175
Component Tree 173
design mode 173
device screen 173
example project 225
Inference Mode 199
palette 173
properties panel 173
Sample Data 182
Setting Properties 177
toolbar 173
user interface design 227
view conversion 181
Layout Editor Tool
changing orientation 16
overview 172
Layout Managers 165
LayoutResultCallback object 725
Layouts 165
layout_scrollFlags
enterAlwaysCollapsed mode 471
enterAlways mode 471
exitUntilCollapsed mode 471
scroll mode 471
Layout Validation 184
let Function 91
libc 75
Lifecycle
awareness 359
components 318
observers 360
owners 359
states and events 360
tutorial 363
Lifecycle-Aware Components 359
Lifecycle Methods 145
Lifecycle Observer 363
creating a 363
Lifecycle Owner
creating a 366
Lifecycles
modern 318
LinearLayout 166
LinearLayoutManager 449
LinearLayoutManager layout 457
Linux Kernel 74
list devices 55
ListView
adaptor 432
adding items 432
example 431
adding to ViewModel 329
observer 331
tutorial 329
Live Templates 70
Local Bound Service 553
example 553
Local Functions 112
Location Manager 76
Location permission 682
LogCat
enabling 155
filter configuration 155
M
Main Thread 517
Manifest File
permissions 505
Master/Detail Flow
anatomy of 479
creation 478
two pane mode 477
match_parent properties 235
Material design 427
MediaController
adding to VideoView instance 663
MediaController class 660
methods 660
MediaPlayer class 689
methods 689
MediaRecorder class 689
methods 690
recording audio 690
Memory Profiler 755
Messenger object 562
Microphone
checking for availability 692
Microphone permissions 682
mm 235
getActionMasked() 272
MotionLayout 389
arc motion 394
Attribute Keyframes 394
ConstraintSets 390
Custom Attribute 410
Custom Attributes 391
Cycle Editor 419
Cycle Keyframes 399
Editor 401
KeyAttribute 394
KeyCycle 415
Keyframes 394
KeyFrameSet 424
KeyPosition 395
KeyTimeCycle 415
KeyTrigger 399
OnSwipe 393
overview 389
Position Keyframes 395
previewing animation 405
starting animation 392
Trigger Keyframe 399
Tutorial 401
MotionScene
ConstraintSets 390
Custom Attributes 391
file 390
overview 389
transition 390
Multiple Touches
handling 272
multi-resume 148
Multi-Touch
example 273
Multi-touch Event Handling 271
Multi-Window
attributes 595
Multi-Window Mode
detecting 596
entering 593
launching activity into 597
Multi-Window Notifications 596
multi-window support 148
Multi-Window Support
enabling 594
Mutable Variables 88
N
Navigation 369
adding destinations 379
overview 369
pass data with safeargs 385
passing arguments 374
safeargs 374
stack 369
tutorial 375
Navigation Action
triggering 373
Navigation Architecture Component 369
Navigation Component
tutorial 375
Navigation Controller
accessing 373
adding actions 382
creating a 376
Navigation Host 370
declaring 377
Network Profiler 756
non-thread-safe code 517
normal permissions 681
Notification
adding actions 576
direct reply 581
Direct Reply Input 586
issuing a basic 572
launch activity from a 574
PendingIntent 583
Reply Action 584
updating direct reply 588
Notifications 567
bundled 576
overview 567
Notifications Manager 76
Not-Null Assertion 91
Nullable Type 90
O
Observer
implementing a LiveData 331
onActivityResult() method 489, 498, 648, 650
onAttach() method 300
onBind() method 540, 546, 553, 561
onBindViewHolder() method 457
OnClick 393
onClick() method 263
onCreateContextMenuListener 264
onCreate() method 138, 145, 540
on-demand modules 781
onDoubleTap() method 279
onDown() method 279
onFling() method 279
onFocusChangeListener 264
OnFragmentInteractionListener
implementation 383
onGesturePerformed() method 285
onHandleIntent() method 539, 540, 544
onKeyListener 264
onLayoutFailed() method 725
onLayoutFinished() method 725
onLongPress() method 279
onPageFinished() callback 710
onPause() method 146
onReceive() method 138, 510, 511, 513
onRequestPermissionsResult() method 685, 697
onRestart() method 145
onRestoreInstanceState() method 146
onSaveInstanceState() method 146
onScaleBegin() method 291
onScaleEnd() method 291
onScale() method 291
onScroll() method 279
OnSeekBarChangeListener 308
onServiceConnected() method 553, 557, 563
onServiceDisconnected() method 553, 557, 563
onShowPress() method 279
onSingleTapUp() method 279
onStartCommand() method 540, 546, 548
onStart() method 145
onStop() method 146
onTabSelectedListener 444
onTouchEvent() method 279, 291
openFileDescriptor() method 642, 643
P
Package Explorer 15
Package Manager 76
PackageManager class 692
PackageManager.FEATURE_MICROPHONE 692
PackageManager.PERMISSION_DENIED 683
PackageManager.PERMISSION_GRANTED 683
Package Name 14
Paint class 730
parentRelative 395
parent view 167
pathRelative 396
Paused state 140
PdfDocument 707
PendingIntent class 583
Permission
checking for 683
permissions
dangerous 681
normal 681
Persistent State 145
Phone permissions 682
picker 641
Pinch Gesture
detection 291
example 292
Pinch Gesture Recognition 285
Position Keyframes 395
Primary Constructor 118
PrintAttributes 724
PrintDocumentInfo 724
Printing
color 704
monochrome 704
Printing framework
architecture 701
Printing Framework 701
Print Job
starting 730
Print Manager 701
PrintManager service 711
PROCESS_OUTGOING_CALLS permission 682
Process States 137
Profiler 749
Bottom Up 753
Call Chart 754
CPU Profiler 752
enable advanced profiling 749
Energy Profiler 758
Flame Chart 754
Instrumented 752
Memory 755
Network 756
Sampled 752
Sessions Panel 751
Top Down 753
ProgressBar 165
proguard-rules.pro file 814
ProGuard Support 810
Project Name 14
pt 235
px 236
Q
Quick Documentation 68
R
RadioButton 165
Range Operator 98
ratios 221
READ_CALENDAR permission 682
READ_CALL_LOG permission 682
READ_CONTACTS permission 682
READ_EXTERNAL_STORAGE permission 683
READ_PHONE_STATE permission 682
READ_SMS permission 682
RECEIVE_MMS permission 682
RECEIVE_SMS permission 682
RECEIVE_WAP_PUSH permission 682
Recent Files Navigation 52
RECORD_AUDIO permission 682
Recording Audio
permission 691
RecyclerView 449
adding to layout file 450
example 453
GridLayoutManager 449
initializing 457
LinearLayoutManager 449
StaggeredGridLayoutManager 449
RecyclerView Adapter
creation of 455
getItemCount() method 450
onBindViewHolder() method 450
onCreateViewHolder() method 450
RecyclerView.ViewHolder
getAdapterPosition() method 460
registerReceiver() method 511
RelativeLayout 166
release mode 767
releasePersistableUriPermission() method 645
Release Preparation 767
Remote Bound Service 561
client communication 561
implementation 562
manifest file declaration 563
RemoteInput.Builder() method 583
RemoteInput Object 583
Remote Service
launching and binding 563
sending a message 565
Repository
tutorial 623
Repository Modules 318
requestPermissions() method 685
Resource
string creation 19
Resource File 21
Resource Management 137
Resource Manager 76
result receiver 511
Room
Data Access Object (DAO) 606
In-Memory Database 612
Repository 606
Room Database 606
tutorial 623
Room Database Persistence 605
Room Persistence Library 603, 605
root element 165
root view 167
runBlocking 527
Runtime Permission Requests 681
Run tool window 51
S
Safe Call Operator 90
tutorial 461
library dependencies 355
contains() method 355
keys() method 355
remove() method 355
Saved State module 353
SavedStateViewModelFactory 354
ScaleGestureDetector class 291
Scale-independent 236
SD Card storage 691
SDK Manager 47
SDK Packages 6
SDK Settings 6
Secondary Constructors 118
Secure Sockets Layer (SSL) 75
SeekBar 303
sendBroadcast() method 509, 511
sendOrderedBroadcast() method 509, 511
SEND_SMS permission 682
sendStickyBroadcast() method 509
Sensor permissions 682
Service
anatomy 540
launch at system start 542
manifest file entry 541
overview 78
run in separate process 542
starting 545
ServiceConnection class 563
Service Process 138
Service Restart Options 541
setAudioEncoder() method 690
setAudioSource() method 690
setBackgroundColor() 242
setContentView() method 241, 249
setId() method 242
setOnClickListener() method 263, 266
setOnDoubleTapListener() method 279, 282
setOutputFile() method 690
setOutputFormat() method 690
setResult() method 489
setText() method 162
setTransition() 399
setVideoSource() method 690
shouldOverrideUrlLoading() method 710
shouldShowRequestPermissionRationale() method 687
SimpleOnScaleGestureListener 291
SimpleOnScaleGestureListener class 293
SMS permissions 682
adding an action item 434
overview of 428
Snapshots
emulator 43
sp 236
Space class 166
split APK files 782
SplitCompatApplication 786
SplitInstallManager 787
Spread chain 190
Spread inside 219
Spread inside chain 190
SQL 600
SQLite 599
AVD command-line use 601
Columns and Data Types 599
overview 600
Primary keys 600
StaggeredGridLayoutManager 449
startActivityForResult() method 488, 498
startActivity() method 487
Started Service 539
example 543
startForeground() method 138
START_NOT_STICKY 541
START_REDELIVER_INTENT 541
startService() method 539, 545
START_STICKY 541
State
restoring 162
State Change
handling 141
Statement Completion 65
status bar 469
Sticky Broadcast Intents 511
Stopped state 140
stopSelf() method 539
stopService() method 539
Storage Access Framework 641
ACTION_CREATE_DOCUMENT 642
ACTION_OPEN_DOCUMENT 642
deleting a file 645
example 647
file creation 649
file filtering 642
file reading 644
file writing 644
intents 642
MIME Types 643
Persistent Access 645
picker 641
Storage permissions 683
String 86
StringBuilder object 656
strings.xml file 23
Structured Query Language 600
Structure tool window 51
supervisorScope 527
Suspend Functions 526
Switcher 52
syncTask 517
synthetic properties 133
System Broadcasts 515
system requirements 3
T
tab bar 469
TabLayout 437
adding to layout 440
addTab() method 446
app
tabGravity property 446
tabMode property 446
example 438
fixed mode 445
getCount() method 437
getItem() method 437
onTabSelectedListener 444
overview 437
scrollable mode 445
setIcon() method 446
setting tab icons 446
TableRow 615
Telephony Manager 76
Templates
blank vs. empty 169
Terminal tool window 51
Thread Handlers 517
Threads 517
creating 519
overview 517
Time Cycle Keyframes 399
TODO tool window 51
toolbar 469
ToolbarListener 300
tools
layout 297
tool window bars 49
Tool Windows 49
Top Down 753
Touch Actions 272
Touch Event Listener
implementation 274
Touch Events
intercepting 271
Touch handling 271
Type Annotations 89
Type Casting 93
Type Checking 93
Type Inference 89
U
unbindService() method 540
unregisterReceiver() method 511
URL Mapping 739
USB debugging
enabling 56
USE_BIOMETRIC 760
user interface state 145
USE_SIP permission 682
V
Video Playback 659
VideoView class 659
methods 659
supported formats 659
view bindings 133
enabling 134
using 135
View class
setting properties 250
view conversion 181
ViewGroup 165
View Groups 165
View Hierarchy 167
ViewHolder class 450
sample implementation 456
ViewModel
adding LiveData 329
data access 326
fragment association 325
overview 316
saved state 353
tutorial 321
ViewModelProvider 325
ViewModel Saved State 353
ViewModelScope 526
adapter 441
adding to layout 440
example 438
Views 165
Java creation 241
View System 76
Virtual Device Configuration dialog 30
Virtual Sensors 42
Visible Process 138
W
WebView view 503
while Loop 104
Widget Dimensions 191
Widget Group Alignment 213
Widgets palette 228
wrap_content properties 238
WRITE_CALENDAR permission 682
WRITE_CALL_LOG permission 682
WRITE_CONTACTS permission 682
WRITE_EXTERNAL_STORAGE permission 683
X
XML Layout File
manual creation 235
vs. Java Code 241