One Espresso with Kotlin, please

GDG DevFest Thailand.
07/10/2017

Transcript

1. #devfestbkk
2. #devfestbkk Android Studio 3 SDK > 21 Emulator https://github.com/VerachadW/sneaker-app/
3. #devfestbkk
4. #devfestbkk
5. #devfestbkk @RunWith(AndroidJUnit4.class) public class NotesActivityTest { @Rule public ActivityTestRule<Activity> activity = new ActivityTestRule<>(Activity.class); @Test public void notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
6. #devfestbkk @RunWith(AndroidJUnit4.class) public class NotesActivityTest { @Rule public ActivityTestRule<Activity> activity = new ActivityTestRule<>(Activity.class); @Test public void notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
7. #devfestbkk @RunWith(AndroidJUnit4.class) public class NotesActivityTest { @Rule public ActivityTestRule<Activity> activity = new ActivityTestRule<>(Activity.class); @Test public void notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
8. #devfestbkk @RunWith(AndroidJUnit4.class) public class NotesActivityTest { @Rule public ActivityTestRule<Activity> activity = new ActivityTestRule<>(Activity.class); @Test public void notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
9. #devfestbkk @RunWith(AndroidJUnit4.class) public class NotesActivityTest { @Rule public ActivityTestRule<Activity> activity = new ActivityTestRule<>(Activity.class); @Test public void notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } } onView check perform
10. #devfestbkk @RunWith(AndroidJUnit4.class) public class NotesActivityTest { @Rule public ActivityTestRule<Activity> activity = new ActivityTestRule<>(Activity.class); @Test public void notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
11. #devfestbkk
12. #devfestbkk @RunWith(AndroidJUnit4::class) class NotesActivityTest { @Rule var activity = ActivityTestRule<NotesActivity>(NotesActivity::class.java) @Test fun notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
13. #devfestbkk @RunWith(AndroidJUnit4::class) class NotesActivityTest { @Rule var activity = ActivityTestRule<NotesActivity>(NotesActivity::class.java) @Test fun notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
14. #devfestbkk @RunWith(AndroidJUnit4::class) class NotesActivityTest { @Rule var activity = ActivityTestRule<NotesActivity>(NotesActivity::class.java) @Test fun notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
15. #devfestbkk @RunWith(AndroidJUnit4::class) class NotesActivityTest { @Rule var activity = ActivityTestRule<NotesActivity>(NotesActivity::class.java) @Test fun notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
16. #devfestbkk @RunWith(AndroidJUnit4::class) class NotesActivityTest { @Rule var activity = ActivityTestRule<NotesActivity>(NotesActivity::class.java) @Test fun notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
17. #devfestbkk @RunWith(AndroidJUnit4::class) class NotesActivityTest { @Rule var activity = ActivityTestRule<NotesActivity>(NotesActivity::class.java) @Test fun notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } } @RunWith(AndroidJUnit4.class) public class NotesActivityTest { @Rule public ActivityTestRule<Activity> activity = new ActivityTestRule<>(Activity.class); @Test public void notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); } }
18. #devfestbkk
19. #devfestbkk DSL
20. #devfestbkk DSL Domain Specific Language
21. #devfestbkk <style> body { background-color: lightblue; } </style>
22. #devfestbkk apply plugin: 'com.android.application' apply plugin: 'kotlin-android' android { compileSdkVersion 25 buildToolsVersion "26.0.0" defaultConfig { applicationId "bkk.firebase.com.myapplication" minSdkVersion 15 targetSdkVersion 26 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } }
23. #devfestbkk verticalLayout { padding = dip(32) imageView(android.R.drawable.ic_menu_manage).lparams { margin = dip(16) gravity = Gravity.CENTER } val name = editText { hintResource = R.string.name } val password = editText { hintResource = R.string.password inputType = TYPE_CLASS_TEXT or TYPE_TEXT_VARIATION_PASSWORD } button("Log in") { onClick { ui.owner.tryLogin(ui, name.text, password.text) } } myRichView() }.applyRecursively(customStyle)
24. #devfestbkk DSL +
25. #devfestbkk Kotin in Action
26. #devfestbkk Lambdas
27. #devfestbkk { x : Int, y: Int -> x + y } Lambdas
28. buttonSend.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View v){ send(); } }); #devfestbkk
29. buttonSend.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View v){ send(); } }); buttonSend.setOnClickListener(object :OnClickListener{ override fun onClick(view : View){ send(); } }) #devfestbkk
30. buttonSend.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View v){ send(); } }); buttonSend.setOnClickListener(object :OnClickListener{ override fun onClick(view : View){ send(); } }) buttonSend.setOnClickListener(View.OnClickListener { view : View -> doSomething() } #devfestbkk
31. #devfestbkk /** * Calls the specified function [block] with `this` value as its receiver and returns `this` value. */ @kotlin.internal.InlineOnly public inline fun <T> T.apply(block: T.() -> Unit): T { block(); return this }
32. #devfestbkk /** * Calls the specified function [block] with `this` value as its receiver and returns `this` value. */ @kotlin.internal.InlineOnly public inline fun <T> T.apply(block: T.() -> Unit): T { block(); return this } fun alphabet() = StringBuilder().apply { for (letter in 'A'..'Z') { append(letter) } append("\nNow I know the alphabet!") }.toString()
33. #devfestbkk /** * Calls the specified function [block] with `this` value as its receiver and returns `this` value. */ @kotlin.internal.InlineOnly public inline fun <T> T.apply(block: T.() -> Unit): T { block(); return this } /** * Calls the specified function [block] with the given [receiver] as its receiver and returns its result. */ @kotlin.internal.InlineOnly public inline fun <T, R> with(receiver: T, block: T.() -> R): R = receiver.block()
34. #devfestbkk /** * Calls the specified function [block] with `this` value as its receiver and returns `this` value. */ @kotlin.internal.InlineOnly public inline fun <T> T.apply(block: T.() -> Unit): T { block(); return this } /** * Calls the specified function [block] with the given [receiver] as its receiver and returns its result. */ @kotlin.internal.InlineOnly public inline fun <T, R> with(receiver: T, block: T.() -> R): R = receiver.block() fun alphabet() = with(StringBuilder()) { for (letter in 'A'..'Z') { append(letter) } append("\nNow I know the alphabet!") toString() }
35. #devfestbkk infix fun <T: Fragment> T.execute(fn: T.() -> Unit) = this.fn()
36. #devfestbkk infix fun <T: Fragment> T.execute(fn: T.() -> Unit) = this.fn() val myFragment = Fragment() myFragment execute { onPause() onDestroy() }
37. #devfestbkk infix fun <T: Fragment> T.execute(fn: T.() -> Unit) = this.fn() val myFragment = Fragment() myFragment execute { onPause() onDestroy() }
38. #devfestbkk Kakao
39. #devfestbkk Kakao Ilya Ivan Konstantin Zoey
40. #devfestbkk @Test fun test() { screen { content { isVisible() } textViewLarge { click() isVisible() hasAnyText() } } }
41. #devfestbkk androidTestCompile 'com.agoda.kakao:kakao:1.0.0'
42. #devfestbkk class TestActivityScreen: Screen<TestActivityScreen>()
43. #devfestbkk class TestActivityScreen: Screen<TestActivityScreen>() val content: KView = KView { withId(R.id.content) } val textViewLarge: KTextView = KTextView { withId(R.id.text_view_small) }
44. #devfestbkk @Test fun test() { screen { content { isVisible() } textViewLarge { click() isVisible() hasAnyText() } } }
45. #devfestbkk @Test fun test() { screen { content { isVisible() } textViewLarge { click() isVisible() hasAnyText() } } } @Test fun notesActivityTest2() { onView(allOf(withParent(withId(R.id.my_button)),isDisplayed())) .perform(click()); }
46. #devfestbkk https://github.com/agoda-com/Kakao
47. #devfestbkk https://github.com/agoda-com/Kakao
48. #devfestbkk Birth/Ju/Inaki