Support TextSwitcher (#73)

* Support text switcher

* Support text switcher

kakao/src/main/kotlin/io/github/kakaocup/kakao/common/matchers/SwitcherCurrentViewMatcher.kt

@@ -0,0 +1,21 @@
+@file:Suppress("unused")
+
+package io.github.kakaocup.kakao.common.matchers
+
+import android.view.View
+import android.widget.ViewSwitcher
+import androidx.test.espresso.matcher.BoundedMatcher
+import org.hamcrest.Description
+
+/**
+ * Matches current view in View Switcher
+ */
+class SwitcherCurrentViewMatcher : BoundedMatcher<View, View>(View::class.java) {
+    override fun matchesSafely(view: View?) = view?.let {
+        (it.parent as ViewSwitcher).currentView.equals(it)
+    } ?: false
+
+    override fun describeTo(description: Description) {
+        description.appendText("Can't match current view for Switcher")
+    }
+}

kakao/src/main/kotlin/io/github/kakaocup/kakao/common/matchers/ViewGroupPositionMatcher.kt

@@ -21,4 +21,3 @@ class ViewGroupPositionMatcher(private val position: Int) : BoundedMatcher<View,
         description.appendText("Can't match view on $position position")
     }
 }
-

sample/src/androidTest/kotlin/io/github/kakaocup/sample/SwitchersViewTest.kt

@@ -0,0 +1,31 @@
+package io.github.kakaocup.sample
+
+import androidx.test.ext.junit.rules.ActivityScenarioRule
+import androidx.test.internal.runner.junit4.AndroidJUnit4ClassRunner
+import io.github.kakaocup.kakao.screen.Screen
+import io.github.kakaocup.sample.screen.SwitchersScreen
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4ClassRunner::class)
+class SwitchersViewTest {
+    @Rule
+    @JvmField
+    val rule = ActivityScenarioRule(SwitchersActivity::class.java)
+
+    @Test
+    fun testTextSwitcher() {
+        Screen.onScreen<SwitchersScreen> {
+            textSwitcher {
+                hasText("Counter: 1")
+            }
+
+            nextButton.click()
+
+            textSwitcher {
+                hasText("Counter: 2")
+            }
+        }
+    }
+}

sample/src/androidTest/kotlin/io/github/kakaocup/sample/screen/SwitchersScreen.kt

@@ -0,0 +1,23 @@
+package io.github.kakaocup.sample.screen
+
+import io.github.kakaocup.kakao.common.matchers.SwitcherCurrentViewMatcher
+import io.github.kakaocup.kakao.screen.Screen
+import io.github.kakaocup.kakao.text.KButton
+import io.github.kakaocup.kakao.text.KTextView
+import io.github.kakaocup.sample.R
+
+class SwitchersScreen : Screen<SwitchersScreen>() {
+    val textSwitcher: KTextView
+        get() {
+            return KTextView {
+                withParent {
+                    withId(R.id.text_switcher)
+                }
+                withMatcher(SwitcherCurrentViewMatcher())
+            }
+        }
+
+    val nextButton = KButton {
+        withId(R.id.next)
+    }
+}

sample/src/main/AndroidManifest.xml

@@ -87,7 +87,10 @@
         android:name="io.github.kakaocup.sample.TabLayoutActivity"
         android:label="Tab Layout Activity"
         android:theme="@style/MaterialAppTheme" />
-
+    <activity
+        android:name="io.github.kakaocup.sample.SwitchersActivity"
+        android:label="Text Switcher Activity"
+        android:theme="@style/MaterialAppTheme" />
     <activity
         android:name="io.github.kakaocup.sample.LinearLayoutActivity"
         android:label="Linear Layout activity"

sample/src/main/kotlin/io/github/kakaocup/sample/SwitchersActivity.kt

@@ -0,0 +1,38 @@
+package io.github.kakaocup.sample
+
+import android.graphics.Color
+import android.os.Bundle
+import android.view.Gravity
+import android.widget.Button
+import android.widget.TextSwitcher
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+
+class SwitchersActivity : AppCompatActivity() {
+
+    private val textSwitcher: TextSwitcher by lazy { findViewById(R.id.text_switcher) }
+    private val nextButton: Button by lazy { findViewById(R.id.next) }
+
+    private var counter = 0
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_textswitcher)
+        textSwitcher.setFactory {
+            val textView = TextView(this)
+            textView.textSize = 24f
+            textView.gravity = Gravity.CENTER_HORIZONTAL
+            textView.setTextColor(Color.parseColor("#0F9D58"))
+            textView
+        }
+        textSwitcher.setCurrentText(getNextText())
+        nextButton.setOnClickListener {
+            textSwitcher.setText(getNextText())
+        }
+    }
+
+    private fun getNextText(): String {
+        counter++
+        return "Counter: $counter"
+    }
+}

sample/src/main/kotlin/io/github/kakaocup/sample/TestActivity.kt

@@ -40,6 +40,7 @@ class TestActivity : AppCompatActivity() {
         addRoute(R.id.slider_button, SliderActivity::class.java)
         addRoute(R.id.text_input_layout, TextInputLayoutActivity::class.java)
         addRoute(R.id.text_activity, TextActivity::class.java)
+        addRoute(R.id.switchers_button, SwitchersActivity::class.java)
 
         findViewById<Button>(R.id.snackbar_button).setOnClickListener {
             val snackbar = Snackbar.make(

sample/src/main/res/layout/activity_test.xml

@@ -153,6 +153,12 @@
           android:layout_height="wrap_content"
           android:text="TEXT VIEWS" />
 
+      <Button
+          android:id="@+id/switchers_button"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:text="SWITCHERS"/>
+
       <RatingBar
           android:id="@+id/rating_bar"
           android:layout_width="wrap_content"

sample/src/main/res/layout/activity_textswitcher.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:orientation="vertical"
+              android:id="@+id/top_layout">
+
+  <TextSwitcher android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:id="@+id/text_switcher"/>
+
+  <Button android:layout_width="wrap_content" android:layout_height="wrap_content"
+          android:id="@+id/next"
+          android:text="Next"/>
+
+</LinearLayout>