Implement fake chat view

src/org/thoughtcrime/securesms/loki/redesign/FakeChatView.kt

@@ -0,0 +1,74 @@
+package org.thoughtcrime.securesms.loki.redesign
+
+import android.content.Context
+import android.content.Context.LAYOUT_INFLATER_SERVICE
+import android.os.Handler
+import android.util.AttributeSet
+import android.view.LayoutInflater
+import android.view.View
+import android.widget.ScrollView
+import kotlinx.android.synthetic.main.fake_chat_content_view.view.*
+import network.loki.messenger.R
+
+
+class FakeChatView : ScrollView {
+
+    // region Settings
+    private val spacing = context.resources.getDimension(R.dimen.medium_spacing)
+    private val startDelay: Long = 2000
+    private val delayBetweenMessages: Long = 3000
+    private val animationDuration: Long = 400
+    // endregion
+
+    // region Lifecycle
+    constructor(context: Context) : super(context) {
+        setUpViewHierarchy()
+    }
+
+    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {
+        setUpViewHierarchy()
+    }
+
+    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {
+        setUpViewHierarchy()
+    }
+
+    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int, defStyleRes: Int) : super(context, attrs, defStyleAttr, defStyleRes) {
+        setUpViewHierarchy()
+    }
+
+    private fun setUpViewHierarchy() {
+        val inflater = context.applicationContext.getSystemService(LAYOUT_INFLATER_SERVICE) as LayoutInflater
+        val contentView = inflater.inflate(R.layout.fake_chat_content_view, null)
+        addView(contentView)
+        isVerticalScrollBarEnabled = false
+    }
+    // endregion
+
+    // region Animation
+    fun startAnimating() {
+        listOf( bubble1, bubble2, bubble3, bubble4, bubble5 ).forEach { it.alpha = 0.0f }
+        fun show(view: View) {
+            view.animate().alpha(1.0f).setDuration(animationDuration).start()
+        }
+        Handler().postDelayed({
+            show(bubble1)
+            Handler().postDelayed({
+                show(bubble2)
+                Handler().postDelayed({
+                    show(bubble3)
+                    smoothScrollTo(0, (bubble1.height + spacing).toInt())
+                    Handler().postDelayed({
+                        show(bubble4)
+                        smoothScrollTo(0, (bubble1.height + spacing).toInt() + (bubble2.height + spacing).toInt())
+                        Handler().postDelayed({
+                            show(bubble5)
+                            smoothScrollTo(0, (bubble1.height + spacing).toInt() + (bubble2.height + spacing).toInt() + (bubble3.height + spacing).toInt())
+                        }, delayBetweenMessages)
+                    }, delayBetweenMessages)
+                }, delayBetweenMessages)
+            }, delayBetweenMessages)
+        }, startDelay)
+    }
+    // endregion
+}

src/org/thoughtcrime/securesms/loki/redesign/LandingActivity.kt

@@ -11,6 +11,7 @@ class LandingActivity : BaseActionBarActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_landing)
+        fakeChatView.startAnimating()
         registerButton.setOnClickListener { register() }
         restoreButton.setOnClickListener { restore() }
     }