Fix various bugs with KitKat preventing stories from launching.

app/src/main/java/org/thoughtcrime/securesms/animation/transitions/FabElevationFadeTransform.kt

@@ -3,15 +3,14 @@ package org.thoughtcrime.securesms.animation.transitions
 import android.animation.Animator
 import android.animation.ValueAnimator
 import android.content.Context
-import android.transition.Transition
-import android.transition.TransitionValues
 import android.util.AttributeSet
 import android.view.ViewGroup
-import androidx.annotation.RequiresApi
+import androidx.core.view.ViewCompat
+import androidx.transition.Transition
+import androidx.transition.TransitionValues
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 
-@RequiresApi(21)
+class FabElevationFadeTransform(context: Context, attrs: AttributeSet) : Transition(context, attrs) {
-class FabElevationFadeTransform(context: Context, attrs: AttributeSet?) : Transition(context, attrs) {
 
   companion object {
     private const val ELEVATION = "CrossfaderTransition.ELEVATION"
@@ -19,23 +18,23 @@ class FabElevationFadeTransform(context: Context, attrs: AttributeSet?) : Transi
 
   override fun captureStartValues(transitionValues: TransitionValues) {
     if (transitionValues.view is FloatingActionButton) {
-      transitionValues.values[ELEVATION] = transitionValues.view.elevation
+      transitionValues.values[ELEVATION] = ViewCompat.getElevation(transitionValues.view)
     }
   }
 
   override fun captureEndValues(transitionValues: TransitionValues) {
     if (transitionValues.view is FloatingActionButton) {
-      transitionValues.values[ELEVATION] = transitionValues.view.elevation
+      transitionValues.values[ELEVATION] = ViewCompat.getElevation(transitionValues.view)
     }
   }
 
-  override fun createAnimator(sceneRoot: ViewGroup?, startValues: TransitionValues?, endValues: TransitionValues?): Animator? {
+  override fun createAnimator(sceneRoot: ViewGroup, startValues: TransitionValues?, endValues: TransitionValues?): Animator? {
     if (startValues?.view !is FloatingActionButton || endValues?.view !is FloatingActionButton) {
       return null
     }
 
-    val startElevation = startValues.view.elevation
+    val startElevation = ViewCompat.getElevation(startValues.view)
-    val endElevation = endValues.view.elevation
+    val endElevation = ViewCompat.getElevation(endValues.view)
     if (startElevation == endElevation) {
       return null
     }
@@ -46,7 +45,7 @@ class FabElevationFadeTransform(context: Context, attrs: AttributeSet?) : Transi
     ).apply {
       addUpdateListener {
         val elevation = it.animatedValue as Float
-        endValues.view.elevation = elevation
+        ViewCompat.setElevation(endValues.view, elevation)
       }
     }
   }

app/src/main/java/org/thoughtcrime/securesms/main/MainActivityListHostFragment.kt

@@ -9,6 +9,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.ActionMenuView
 import androidx.appcompat.widget.Toolbar
 import androidx.core.content.ContextCompat
+import androidx.core.view.ViewCompat
 import androidx.core.view.children
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
@@ -108,6 +109,9 @@ class MainActivityListHostFragment : Fragment(R.layout.main_activity_list_host_f
       val cameraFab = requireView().findViewById<View>(R.id.camera_fab)
       val newConvoFab = requireView().findViewById<View>(R.id.fab)
 
+      ViewCompat.setTransitionName(cameraFab, "camera_fab")
+      ViewCompat.setTransitionName(newConvoFab, "new_convo_fab")
+
       val extras: Navigator.Extras? = if (cameraFab == null || newConvoFab == null) {
         null
       } else {

app/src/main/java/org/thoughtcrime/securesms/stories/landing/StoriesLandingFragment.kt

@@ -4,7 +4,6 @@ import android.Manifest
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
-import android.transition.TransitionInflater
 import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
@@ -16,6 +15,7 @@ import androidx.core.app.SharedElementCallback
 import androidx.core.view.ViewCompat
 import androidx.fragment.app.viewModels
 import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.transition.TransitionInflater
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 import com.google.android.material.snackbar.Snackbar
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
@@ -129,6 +129,10 @@ class StoriesLandingFragment : DSLSettingsFragment(layoutId = R.layout.stories_l
     lifecycleDisposable.bindTo(viewLifecycleOwner)
     emptyNotice = requireView().findViewById(R.id.empty_notice)
     cameraFab = requireView().findViewById(R.id.camera_fab)
+    val sharedElementTarget: View = requireView().findViewById(R.id.camera_fab_shared_element_target)
+
+    ViewCompat.setTransitionName(cameraFab, "new_convo_fab")
+    ViewCompat.setTransitionName(sharedElementTarget, "camera_fab")
 
     sharedElementEnterTransition = TransitionInflater.from(requireContext()).inflateTransition(R.transition.change_transform_fabs)
     setEnterSharedElementCallback(object : SharedElementCallback() {
@@ -139,6 +143,7 @@ class StoriesLandingFragment : DSLSettingsFragment(layoutId = R.layout.stories_l
             .observeOn(AndroidSchedulers.mainThread())
             .subscribeBy {
               cameraFab.setImageResource(R.drawable.ic_camera_outline_24)
+              sharedElementTarget.alpha = 0f
             }
         }
       }

app/src/main/java/org/thoughtcrime/securesms/stories/landing/StoriesLandingItem.kt

@@ -7,6 +7,7 @@ import android.view.View
 import android.widget.ImageView
 import android.widget.TextView
 import androidx.core.content.ContextCompat
+import androidx.core.view.ViewCompat
 import com.bumptech.glide.load.DataSource
 import com.bumptech.glide.load.engine.GlideException
 import com.bumptech.glide.request.RequestListener
@@ -116,6 +117,7 @@ object StoriesLandingItem {
     private val badgeView: BadgeImageView = itemView.findViewById(R.id.badge)
     private val storyPreview: ImageView = itemView.findViewById<ImageView>(R.id.story).apply {
       isClickable = false
+      ViewCompat.setTransitionName(this, "story")
     }
     private val storyBlur: ImageView = itemView.findViewById<ImageView>(R.id.story_blur).apply {
       isClickable = false

app/src/main/java/org/thoughtcrime/securesms/stories/viewer/StoryViewerFragment.kt

@@ -6,6 +6,7 @@ import android.os.Build
 import android.os.Bundle
 import android.view.View
 import androidx.core.app.ActivityCompat
+import androidx.core.view.ViewCompat
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
 import androidx.viewpager2.widget.ViewPager2
@@ -51,6 +52,7 @@ class StoryViewerFragment :
     storyCrossfader = view.findViewById(R.id.story_content_crossfader)
     storyPager = view.findViewById(R.id.story_item_pager)
 
+    ViewCompat.setTransitionName(storyCrossfader, "story")
     storyCrossfader.callback = this
 
     val adapter = StoryViewerPagerAdapter(

app/src/main/java/org/thoughtcrime/securesms/stories/viewer/StoryViewerViewModel.kt

@@ -1,5 +1,6 @@
 package org.thoughtcrime.securesms.stories.viewer
 
+import android.os.Build
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
@@ -30,7 +31,7 @@ class StoryViewerViewModel(
         storyViewerArgs.storyThumbUri != null -> StoryViewerState.CrossfadeSource.ImageUri(storyViewerArgs.storyThumbUri, storyViewerArgs.storyThumbBlur)
         else -> StoryViewerState.CrossfadeSource.None
       },
-      skipCrossfade = storyViewerArgs.isFromNotification || storyViewerArgs.isFromQuote
+      skipCrossfade = storyViewerArgs.isFromNotification || storyViewerArgs.isFromQuote || Build.VERSION.SDK_INT < 21
     )
   )
 

app/src/main/java/org/thoughtcrime/securesms/stories/viewer/first/StoryFirstTimeNavigationFragment.kt

@@ -10,6 +10,7 @@ import android.view.WindowManager
 import androidx.core.app.ActivityCompat
 import androidx.fragment.app.DialogFragment
 import androidx.fragment.app.viewModels
+import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
 import org.thoughtcrime.securesms.R
 import org.thoughtcrime.securesms.keyvalue.SignalStore
 import org.thoughtcrime.securesms.stories.StoryFirstTimeNavigationView
@@ -51,7 +52,7 @@ class StoryFirstTimeNavigationFragment : DialogFragment(R.layout.story_viewer_fi
     view.callback = this
     viewModel.setIsDisplayingFirstTimeNavigation(true)
 
-    disposables += viewModel.state.subscribe { state ->
+    disposables += viewModel.state.observeOn(AndroidSchedulers.mainThread()).subscribe { state ->
       when (state.crossfadeSource) {
         is StoryViewerState.CrossfadeSource.ImageUri -> {
           view.setBlurHash(state.crossfadeSource.imageBlur)

app/src/main/java/org/thoughtcrime/securesms/util/adapter/mapping/LayoutFactory.java

@@ -7,6 +7,8 @@ import android.view.ViewGroup;
 import androidx.annotation.LayoutRes;
 import androidx.annotation.NonNull;
 
+import org.signal.core.util.logging.Log;
+
 import java.util.function.Function;
 
 

app/src/main/res/drawable/stories_my_story_add_background.xml

@@ -1,11 +1,5 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
+<?xml version="1.0" encoding="utf-8"?>
-    android:width="24dp"
+<shape android:shape="oval" xmlns:android="http://schemas.android.com/apk/res/android">
-    android:height="24dp"
+    <solid android:color="@color/signal_colorPrimary" />
-    android:viewportWidth="24"
+    <stroke android:color="@color/signal_colorOnPrimary" android:width="3dp" />
-    android:viewportHeight="24">
+</shape>
-  <path
-      android:pathData="M12,12m-10.5,0a10.5,10.5 0,1 1,21 0a10.5,10.5 0,1 1,-21 0"
-      android:strokeWidth="3"
-      android:fillColor="@color/signal_colorPrimary"
-      android:strokeColor="@color/signal_colorBackground"/>
-</vector>