iOS Architecture with Multiplatform

Transcript

1. iOS Architecture with Multiplatform Kevin Galligan
3. Touchlab
4. Community community!
6. Doppl
7. JRE
 (lang, io, util, etc) J2ObjC JRE JUnit Mockito
8. JRE
 (lang, io, util, etc) Android
 (Context, SQLiteDatabase, Threading, Shared Preferences) J2ObjC Doppl JRE JUnit Mockito
9. JRE
 (lang, io, util, etc) Android
 (Context, SQLiteDatabase, Threading, Shared Preferences) Gradle Plugin Library Format Testing Support Xcode Support J2ObjC Doppl JRE JUnit Mockito
10. JRE
 (lang, io, util, etc) Android
 (Context, SQLiteDatabase, Threading, Shared Preferences) Gradle Plugin Library Format Retrofit RxJava RxAndroid Gson Dagger SQLDelight Room DB Android Architecture etc… Testing Support Xcode Support J2ObjC Doppl JRE JUnit Mockito
11. Fractivities Architecture Components Looper, Handler, Message Queue Retrofit SQLite
 (Room, etc) java.io.File Android Android Native Stuff
12. Fractivities Architecture Components Looper, Handler, Message Queue Retrofit SQLite
 (Room, etc) java.io.File Android Android Native Stuff ViewControllers Architecture Components Looper, Handler, Message Queue Retrofit SQLite
 (Room, etc) java.io.File iOS iOS Native Stuff
13. no thanks
15. https://medium.com/@kpgalligan/the-future-of-shared-code-is-kotlin-multiplatform-9aac94517f95
16. I approve!
19. still no thanks
20. swift is life!!!
21. the future? now
22. reach out for repos
23. chief hacking officer
24. kotlin
25. kotlin
26. SHARED ARHICTECTURE
27. Mobile & Web Architecture, not UI
28. Shared UI == Failure!
29. Shared Loigc == Computers
31. Web is more difficult No SQL :(
32. Advocate for new standards AKA The Long Game
33. mobile is MUCH simpler
34. DROIDCON WITH KOTLIN MULTIPLATFORM
35. Funky Code Testbed
36. Funky Code Testbed Kotlin in 2014!
37. Droidcon NYC & SF
38. Droidcon NYC & SF KotlinConf fork, but use the official :)
39. SQLite Knarch.db Android iOS
40. SQLite Knarch.db SQLDelight Android iOS
41. SQLite Knarch.db SQLDelight Logic! Reactive (LiveData) Android iOS
42. SQLite Knarch.db SQLDelight Logic! Reactive (LiveData) Android iOS
43. SQLite Knarch.db SQLDelight MP Settings Logic! Reactive (LiveData) Android iOS
44. val evenLiveData:EventLiveData init { val query = goFreeze(AppContext.dbHelper. queryWrapper.sessionQueries. sessionById(sessionId)) evenLiveData = EventLiveData(query) } fun shutDown(){ evenLiveData.removeListener() }
45. val evenLiveData:EventLiveData init { val query = goFreeze(AppContext.dbHelper. queryWrapper.sessionQueries. sessionById(sessionId)) evenLiveData = EventLiveData(query) } fun shutDown(){ evenLiveData.removeListener() }
46. override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? { eventViewModel.eventModel.evenLiveData. observe(viewLifecycleOwner, Observer { dataRefresh(it) }) return initView(inflater, container) }
47. override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? { eventViewModel.eventModel.evenLiveData. observe(viewLifecycleOwner, Observer { dataRefresh(it) }) return initView(inflater, container) }
48. fun registerForChanges(proc:(sessionInfo:SessionInfo)->Unit){ eventObserver = object : Observer<SessionInfo>{ override fun onChanged(t: SessionInfo?){ if(t != null) proc(t) } } eventModel.evenLiveData.observeForever(eventObserver!!) }
49. viewModel = EventViewModel(sessionId: sessionId) viewModel.registerForChanges(proc: updateUi)
50. viewModel = EventViewModel(sessionId: sessionId) viewModel.registerForChanges(proc: updateUi) func updateUi(sessionInfo:SessionInfo) -> KotlinUnit{ self.sessionInfo = sessionInfo styleButton() updateAllUi() return KotlinUnit() }
51. Droidcon App Kotlin Multiplatform https://www.youtube.com/watch?v=YAeDK3Ei0Lk https://github.com/touchlab/DroidconKotlin/ Now with 0.9.3!
52. KOTLINCONF WITH KOTLIN MULTIPLATFORM (OBV)
53. Settings Android iOS Ktor
54. Settings Android iOS Ktor DataRepository
55. Settings Android iOS Ktor DataRepository SessionDetailsPresenter
56. Settings Android iOS Ktor DataRepository SessionDetailsPresenter SessionDetailsView
57. interface SessionDetailsView : BaseView { fun updateView(isFavorite: Boolean, session: SessionModel) fun setupRatingButtons(rating: SessionRating?) fun setRatingClickable(clickable: Boolean) } override fun updateView(isFavorite: Boolean, session: SessionModel) { collapsingToolbar.title = session.title speakersTextView.text = session.speakers.joinToString(separator = ", ") { it.fullName } timeTextView.text = session.timeString detailsTextView.text = listOfNotNull(session.roomText, session.category).joinToString(", ") descriptionTextView.text = session.descriptionText val online = context?.let { it.isConnected?.and(!it.isAirplaneModeOn) } ?: false for (button in listOf(votingButtonsLayout, favoriteButton)) { func updateView(isFavorite: Bool, session: SessionModel) { titleLabel.text = session.title let startsAt = session.startsAt let endsAt = session.endsAt if (startsAt != nil && endsAt != nil) { timeLabel.text = KotlinPair(first: startsAt, second: endsAt).toReadableString() } let image = UIImage(named: isFavorite ? "star_full" : "star_empty")! favoriteButton.image = image
58. Settings Android iOS Ktor DataRepository SessionDetailsPresenter SessionDetailsView
59. KotlinConf App https://github.com/JetBrains/kotlinconf-app
60. SHARED CODE FOR ANDROID & IOS
61. Common
62. Common mainThread?
63. expect val mainThread:Boolean
64. expect val mainThread:Boolean actual val mainThread: Boolean get() = Looper.myLooper() === Looper.getMainLooper()
65. expect val mainThread:Boolean actual val mainThread: Boolean get() = Looper.myLooper() === Looper.getMainLooper() actual val mainThread: Boolean get() = NSThread.isMainThread()
66. expect val mainThread:Boolean actual val mainThread: Boolean get() = Looper.myLooper() === Looper.getMainLooper() actual val mainThread: Boolean get() = NSThread.isMainThread() actual val mainThread: Boolean = true
67. expect fun currentTimeMillis():Long expect fun <B> backgroundTask(backJob:()-> B, mainJob:(B) -> Unit) expect fun backgroundTask(backJob:()->Unit) expect fun networkBackgroundTask(backJob:()->Unit) expect fun initContext():NativeOpenHelperFactory expect fun <T> goFreeze(a:T):T expect fun <T> T.freeze2(): T expect fun simpleGet(url:String):String expect fun logException(t:Throwable) expect fun settingsFactory(): Settings.Factory expect fun createUuid():String
68. expect class Date { fun toLongMillis():Long } expect class DateFormatHelper(format:String){ fun toDate(s:String):Date fun format(d:Date):String }
69. actual class Date(val date:java.util.Date) { actual fun toLongMillis(): Long = date.time } actual class DateFormatHelper actual constructor(format: String) { val dateFormatter = object : ThreadLocal<DateFormat>(){ override fun initialValue(): DateFormat = SimpleDateFormat(format) } actual fun toDate(s: String): Date = Date(dateFormatter.get()!!.parse(s)) actual fun format(d: Date): String = dateFormatter.get()!!.format(d.date) }
70. fun initPlatformClient( staticFileLoader: (filePrefix: String, fileType: String) -> String?, analyticsCallback: (name: String, params: Map<String, Any>) -> Unit, clLogCallback: (s: String) -> Unit) {
71. fun initPlatformClient( staticFileLoader: (filePrefix: String, fileType: String) -> String?, analyticsCallback: (name: String, params: Map<String, Any>) -> Unit, clLogCallback: (s: String) -> Unit) { AppContext.initPlatformClient ({filePrefix, fileType -> loadAsset("${filePrefix}.${fileType}")}, {name: String, params: Map<String, Any> -> val event = CustomEvent(name) //Loop Answers.getInstance().logCustom(event) }, { Log.w("MainApp", it) })
72. let appContext = AppContext() appContext.doInitPlatformClient(staticFileLoader: loadAsset, analyticsCallback: analyticsCallback, clLogCallback: csLog) func loadAsset(filePrefix:String, fileType:String) -> String?{ do{ let bundleFile = Bundle.main.path(forResource: filePrefix, ofType: fileType) return try String(contentsOfFile: bundleFile!) } catch { return nil } }
73. Common
74. JVM Native Common
75. JVM Native Common Framework
76. JVM Native Common Framework
77. JVM Native Common Android Stuff Framework iOS Stuff
78. JVM Native Common
79. JVM Native Common Ktor-JVM Ktor-Native Ktor
80. iOS Dev Info
81. Reference Counting but not your reference counting
82. No Reference Cycles
83. Can call from Swift although some complaints
84. No bitcode support yet…
85. Threading is Different that’s for everybody
87. https://medium.com/@kpgalligan/kotlin-native-stranger-threads-c0cf0e0fb847
88. Episode 2 soon!
90. IDE TOOLS & GRADLE PLUGINS
91. ¯\_(ツ)_/¯
92. Multiplatform IDE Intellij community and Android Studio!
93. Multiplatform Gradle new and changing
94. Other Plugins?
95. LIBRARIES
96. Stdlib not exactly a library, but…
97. Kotlin/Native Runtime also not a library, still… https://github.com/JetBrains/kotlin-native
98. • kotlin/native/concurrent/Freezing.kt • kotlin/native/Annotations.kt • kotlin/native/concurrent/Worker.kt (maybe)
100. https://github.com/ktorio/ktor Ktor asynchronous server and client(s)
101. Kotlinx.serialization cross-platform / multi-format reflectionless serialization https://github.com/Kotlin/kotlinx.serialization
102. Kotlinx.coroutines makes coroutines usable https://github.com/Kotlin/kotlinx.coroutines
105. KNArch.db Kotlin Native Architecture - Database https://github.com/touchlab/knarch.db
109. Future Changes •Add multithreaded reads and WAL support •Coroutines aware api •CursorWindow? •Other stuff
110. https://github.com/square/sqldelight Sqldelight A Multiplatform Delight
111. CREATE TABLE session( id TEXT NOT NULL PRIMARY KEY, title TEXT NOT NULL, description TEXT NOT NULL, startsAt TEXT AS Date NOT NULL, endsAt TEXT AS Date NOT NULL, serviceSession INTEGER NOT NULL DEFAULT 0, rsvp INTEGER NOT NULL DEFAULT 0, roomId INTEGER, FOREIGN KEY (roomId) REFERENCES room(id) ); insert: INSERT INTO session(id, title, description, startsAt, endsAt, serviceSession, roomId) VALUES (?,?,?,?,?,?,?) ; update: UPDATE session SET title = ?, description = ?, startsAt = ?, endsAt = ?, serviceSession = ?, roomId = ?, rsvp = ? WHERE id = ?; deleteById: DELETE FROM session WHERE id = ?; allSessions: SELECT * FROM session; sessionById: SELECT * FROM session WHERE id = ?;
112. --Special query for schedule view sessionWithRoom: SELECT session.id, session.title, session.description, session.startsAt, session.endsAt, session.serviceSession, session.rsvp, session.roomId, room.name AS roomName, speakers.allNames FROM session LEFT JOIN ( SELECT sessionId,group_concat(fullName, ', ') AS allNames FROM sessionSpeaker JOIN userAccount ON userAccount.id = sessionSpeaker.userAccountId GROUP BY sessionId ) AS speakers ON speakers.sessionId = session.id JOIN room ON session.roomId = room.id ;
115. SQLDelight + KNArch.db
116. KNArch.threads Kotlin Native Architecture - Threads https://github.com/touchlab/knarch.threads
117. KNArch.threads • Temporary-ish until better tools emerge • Atomic support (deprecated) • ThreadLocal • LiveData
120. Multiplatform Settings Really Shared Preferences https://github.com/russhwolf/multiplatform-settings
121. public expect class PlatformSettings : Settings { /** * A factory that can produce [Settings] instances. */ public class Factory : Settings.Factory { public override fun create(name: String?): Settings } public override fun clear() public override fun remove(key: String) public override fun hasKey(key: String): Boolean public override fun putInt(key: String, value: Int) public override fun getInt(key: String, defaultValue: Int): Int public override fun putLong(key: String, value: Long) public override fun getLong(key: String, defaultValue: Long): Long public override fun putString(key: String, value: String) public override fun getString(key: String, defaultValue: String): String public override fun putFloat(key: String, value: Float) public override fun getFloat(key: String, defaultValue: Float): Float public override fun putDouble(key: String, value: Double) public override fun getDouble(key: String, defaultValue: Double): Double public override fun putBoolean(key: String, value: Boolean) public override fun getBoolean(key: String, defaultValue: Boolean): Boolean }
122. Timber Multiplatform logging https://github.com/JakeWharton/timber
123. Atomic Fu Atomic operation support https://github.com/Kotlin/kotlinx.atomicfu
124. Kotlinx.io multiplatform I/O library https://github.com/Kotlin/kotlinx-io
125. OKIO2 MULTIPLATFORM
127. MY WISH LIST
128. Stable Gradle Plugins I know, but
129. Significant Library Examples With publishing, for all targets
130. Multithreaded Native Coroutines If I get 1 thing for Christmas…
131. A Reactive Library Or maybe just coroutines?
132. Xcode Debugging? Asking a lot, but still
133. COMMUNITY WISH LIST
134. Mocking Library See mockk repo
135. Dependency Injection Or service locator I guess…
136. Build Instrumentation kapt, compiler plugins
137. Date Support JSR 310 or similar
138. UI Stuff Here be dragons
139. Getting Started
140. Build Samples Conference apps, several others
141. Kotlin/Native Docs Learn threads and state
142. For Libraries? Multiplatform Settings (then the rest)
143. Join the Kotlin Slack
144. When?
145. Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7 v0.8 v0.8.2 v0.9 Coroutines (and other libs)
146. Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7 v0.8 v0.8.2 v0.9.3 Coroutines?
147. Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7 v0.8 v0.8.2 v0.9.3 Coroutines? Other Libraries Docs/tutorials
148. Thanks for the Images! Source Links at: https://bit.ly/2O0c469
149. kevin@touchlab.co @kpgalligan
150. kevin@touchlab.co @kpgalligan Join the team !