Essential Books

Download Implement

suggest change

Download the latest JAR or grab via Maven: 

<dependency>
    <groupId>com.squareup.okio</groupId>
    <artifactId>okio</artifactId>
    <version>1.12.0</version>
</dependency>

or Gradle: 

compile 'com.squareup.okio:okio:1.12.0'
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Okio:
*Okio
*Download Implement
*PNG decoder
*ByteStrings and Buffers
Table Of Contents
0Getting Started
1Layouts
2Gradle
3RecyclerView onClickListeners
4NavigationView
5Intent
6JSON handling with org.json
7Android Studio
8Resources
9Data Binding Library
10Exceptions
11Getting Calculated View Dimensions
12AsyncTask
13SharedPreferences
14Emulator
15Material Design
16Lint Warnings
17Service
18Storing Files in Internal and External Storage
19WebView
20Project SDK versions
21RecyclerView
22Google Maps
23PorterDuff Mode
249-Patch images
25Android NDK
26RecyclerView Decorations
27Camera 2 API
28ViewPager
29CardView
30HttpURLConnection
31SQLite
32ADB Android Debug Bridge
33ButterKnife
34Supporting different screen resolutions
35Glide
36Retrofit2
37Dialog
38ACRA
39GreenDAO
40Formatting Strings
41Notifications
42AlarmManager
43Fragments
44Handler
45Creating Custom Views
46BroadcastReceiver
47Activity
48Snackbar
49Runtime Permissions in API-23
50Logging and using Logcat
51VectorDrawable and AnimatedVectorDrawable
52Tools Attributes
53Toast
54Interfaces
55Animators
56Location
57Theme Style Attribute
58The Manifest File
59Parcelable
60MediaPlayer
61Multidex and the Dex Method Limit
62Data Synchronization with Sync Adapter
63Menu
64Instant Run in Android Studio
65Picasso
66Bluetooth LE API
67RoboGuice
68Memory Leaks
69Universal Image Loader
70Volley
71Widgets
72Date and Time Pickers
73Integrate Google Sign In
74In-app billing
75FloatingActionButton
76ContentProvider
77Dagger 2
78Realm
79Unit testing in Android with JUnit
80Android Versions
81Wi-Fi Connections
82SensorManager
83Localization with resources
84ProgressBar
85Custom Fonts
86Vibration
87Google Awarness APIs
88Text to Speech (TTS)
89UI Lifecycle
90Spinner
91Data Encryption / Decryption
92Testing UI with Espresso
93Writing UI tests
94GreenRobot EventBus
95OkHttp
96Enhancing Performance Using Icon Fonts
97Handling Depp Links
98Canvas drawing using SurfaceView
99Firebase
100Crash Reporting Tools
101Check Internet Connectivity
102Facebook SDK
103Unzip File
104Android Places API
105Creating your own libraries
106Handling JSON with Gson
107Device Display Metrics
108TextView
109ListView
110Building Backwards Compatible Apps
111Loader
112ProGuard - Obfuscating and Shrinking your code
113Detect Shake Event
114Typedef Annotations
115Capturing Screenshots
116MVP Architecture
117Orientation Changes
118Xposed
119Security
120PackageManager
121ImageView
122Gesture Detection
123Doze Mode
124Android Sound and Media
125SearchView
126Camera and Gallery
127Callback URL
128Twitter APIs
129SqlCipher integration
130Drawables
131Colors
132ConstraintLayout
133RenderScript
134Fresco
135Swipe to Refresh
136AutoCompleteTextView
137Installing apps with ADB
138IntentService
139AdMob
140Implicit Intents
141Publish to Play Store
142Firebase Realtime Database
143Image Compression
144Email Validation
145Keyboard
146Button
147TextInputLayout
148Bottom Sheets
149CoordinatorLayout and Behaviors
150EditText
151Paypal Gateway Integration
152Firebase App Indexing
153Firebase Crash Reporting
154Displaying Google Ads
155Vk SDK
156Localized DateTime
157Count Down Timer
158Reading Barcode and QR codes
159Otto Event Bus
160TransitionDrawable
161Port Mapping using Cling
162Creating Overlay always-on-top Windows
163ExoPlayer
164Inter-app UI testing with UIAutomator
165MediaSession
166Speech to Text Conversion
167FileProvider
168Publish .aar file to Apache Archive with Gradle
169XMPP
170Authenticator
171RecyclerView and LayoutManagers
172AudioManager
173Job Scheduling
174Accounts and AccountManager
175OpenCV
176Split Screen Multi-Screen Activities
177Threads
178MediaStore
179Time Utils
180Touch Events
181Fingerprint API
182MVVM Architecture
183BottomNavigationView
184ORMLite
185YouTube API
186TabLayout
187Retrofit2 with RxJava
188DayNight Theme AppCompat
189ShortcutManager
190LruCache
191Using Jenkins CI
192Zip files
193Vector Drawables
194Fastlane
195Define step value for RangeSeekBar
196Getting started with OpenGL ES 2.0
197Check Data Connection
198Java Native Interface (JNI)
199FileIO
200Perfomance Optimization
201Robolectric
202Moshi
203Strick Mode Policy
204Internalization and localization
205Retrolambda
206SparseArray
207Firebase Cloud Messaging
208Shared Element Transitions
209Android Things
210VideoView
211ViewFlipper
212Dependency Injection with Dagger 2
213Formatting phone numbers
214Storing password securely
215Android Kernel Optimization
216Paint
217AudioTrack
218ProGuard
219Create Android Custom ROMs
220Java on Android
221Pagination in RecyclerVi
222Genymotion for Android
223Handling touch and motion events
224Creating Splash screen
225ConstraintSet
226CleverTap
227Publish library to Maven repositories
228ADB shell
229Ping ICMP
230AIDL
231Using Kotlin
232Autosizing TextView
233Signing apps for release
234Context
235Activity Recognition
236Secure SharedPreferences
237Secure SharedPreferences
238Bitmap Cache
239Android x86 in VirtualBox
240JCodec
241Design Patterns
242Okio
243Google SignIn integration
244TensorFlow
245Game developmen
246Notification Channel
247Bluetooth Low Energy (LE)
248Leak Canary
249FuseView
250SQLite using ContentValues
251Enhancing Alert Dialogs
252Hardware Button Events, Intents PTT
253SpannableString
254Looper
255Optimized VideoView
256Google Drive API
257Animated AlertDialog Box
258Annotation Processor
259SyncAdapter with periodically do sync of data
260Singleton Class for Toast Message
261Fastjson
262Android Architecture Components
263Jackson
264Play Store
265Loading Bitmaps Effectively
266Getting system font names
267Smartcard
268Convert vietnamese string to english
269Contributors