Create ViewModel for AlbumActivity

app/src/main/java/org/pixeldroid/app/posts/AlbumActivity.kt

@@ -2,30 +2,36 @@ package org.pixeldroid.app.posts
 
 import android.os.Bundle
 import android.view.View
+import androidx.activity.viewModels
 import org.pixeldroid.app.databinding.ActivityAlbumBinding
 import org.pixeldroid.app.utils.BaseActivity
-import org.pixeldroid.app.utils.api.objects.Attachment
 
 class AlbumActivity : BaseActivity() {
+
+    private lateinit var model: AlbumViewModel
+    private var isActionBarHidden = false
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         val binding = ActivityAlbumBinding.inflate(layoutInflater)
 
+        val _model: AlbumViewModel by viewModels { AlbumViewModelFactory(application, intent) }
+        model = _model
+
         setContentView(binding.root)
-        val mediaAttachments = intent.getSerializableExtra("images") as ArrayList<Attachment>
-        val index = intent.getIntExtra("index", 0)
-        binding.albumPager.adapter = AlbumViewPagerAdapter(mediaAttachments,
+
+        binding.albumPager.adapter = AlbumViewPagerAdapter(model.uiState.value.mediaAttachments,
             sensitive = false,
             opened = true,
             //In the activity, we assume we want to show everything
             alwaysShowNsfw = true
         )
-        binding.albumPager.currentItem = index
+        binding.albumPager.currentItem = model.uiState.value.index
 
-        if(mediaAttachments.size == 1){
+        if (model.uiState.value.mediaAttachments.size == 1) {
             binding.albumPager.isUserInputEnabled = false
         }
-        else if((mediaAttachments.size) > 1) {
+        else if ((model.uiState.value.mediaAttachments.size) > 1) {
             binding.postIndicator.setViewPager(binding.albumPager)
             binding.postIndicator.visibility = View.VISIBLE
         } else {
@@ -35,5 +41,30 @@ class AlbumActivity : BaseActivity() {
         supportActionBar?.setDisplayHomeAsUpEnabled(true)
         supportActionBar?.setDisplayShowTitleEnabled(false)
         supportActionBar?.setBackgroundDrawable(null)
+
+        // TODO: Move from StatusViewHolder (877-893) to here
+        // TODO: Issue is that albumPager does not listen to the clicks
+        /*binding.albumPager.setOnClickListener {
+            val windowInsetsController =
+                WindowCompat.getInsetsController(this.window, it)
+            // Configure the behavior of the hidden system bars
+            if (isActionBarHidden) {
+                windowInsetsController.systemBarsBehavior =
+                    WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
+                // Hide both the status bar and the navigation bar
+                supportActionBar?.show()
+                windowInsetsController.show(WindowInsetsCompat.Type.systemBars())
+                isActionBarHidden = false
+            } else {
+                // Configure the behavior of the hidden system bars
+                windowInsetsController.systemBarsBehavior =
+                    WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
+                // Hide both the status bar and the navigation bar
+                supportActionBar?.hide()
+                windowInsetsController.hide(WindowInsetsCompat.Type.systemBars())
+                isActionBarHidden = true
+            }
+        }*/
+
     }
 }

app/src/main/java/org/pixeldroid/app/posts/AlbumViewModel.kt

@@ -0,0 +1,42 @@
+package org.pixeldroid.app.posts
+
+import android.app.Application
+import android.content.Intent
+import android.os.Build
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import org.pixeldroid.app.utils.api.objects.Attachment
+
+data class AlbumUiState(
+    val mediaAttachments: ArrayList<Attachment> = arrayListOf(),
+    val index: Int = 0
+)
+
+class AlbumViewModel(application: Application, intent: Intent) : AndroidViewModel(application) {
+
+    private val _uiState: MutableStateFlow<AlbumUiState>
+
+    init {
+        _uiState = MutableStateFlow(AlbumUiState(
+            mediaAttachments = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                intent.getSerializableExtra("images", arrayListOf<Attachment>()::class.java)!!
+            } else {
+                intent.getSerializableExtra("images") as ArrayList<Attachment>
+            },
+            index = intent.getIntExtra("index", 0)
+        ))
+    }
+
+    val uiState: StateFlow<AlbumUiState> = _uiState.asStateFlow()
+
+}
+
+class AlbumViewModelFactory(val application: Application, val intent: Intent) : ViewModelProvider.Factory {
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+        return modelClass.getConstructor(Application::class.java, Intent::class.java).newInstance(application, intent)
+    }
+}

gradle/verification-metadata.xml

@@ -4516,6 +4516,14 @@
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          </artifact>
       </component>
+      <component group="com.jakewharton.timber" name="timber" version="4.7.1">
+         <artifact name="timber-4.7.1.aar">
+            <sha256 value="2843b37d53ad5016ab7f7a1d02f7fad5cdf11f23ee5285dd2968787c696208e3" origin="Generated by Gradle"/>
+         </artifact>
+         <artifact name="timber-4.7.1.pom">
+            <sha256 value="e3313f03ac62bf4ff331bf3aea9db078625b03790bba49ce0a1def0500f91336" origin="Generated by Gradle"/>
+         </artifact>
+      </component>
       <component group="com.jakewharton.timber" name="timber" version="5.0.1">
          <artifact name="timber-5.0.1.aar">
             <sha256 value="c6edddfcc8eff42a1604c8577fcfa4b4ffd9f252122c52ea36cfe7967f512f71" origin="Generated by Gradle"/>
@@ -4820,6 +4828,9 @@
          <artifact name="okio-2.8.0.module">
             <sha256 value="17baab7270389a5fa63ab12811864d0a00f381611bc4eb042fa1bd5918ed0965" origin="Generated by Gradle"/>
          </artifact>
+         <artifact name="okio-jvm-2.8.0.jar">
+            <sha256 value="4496b06e73982fcdd8a5393f46e5df2ce2fa4465df5895454cac68a32f09bbc8" origin="Generated by Gradle"/>
+         </artifact>
       </component>
       <component group="com.squareup.okio" name="okio" version="3.2.0">
          <artifact name="okio-3.2.0.module">
@@ -6028,6 +6039,14 @@
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          </artifact>
       </component>
+      <component group="org.jetbrains" name="annotations" version="16.0.1">
+         <artifact name="annotations-16.0.1.jar">
+            <sha256 value="b11d2523ad1e1f25a13cfccd7b4bc05b89c34647f768183ce4084345574dc9c5" origin="Generated by Gradle"/>
+         </artifact>
+         <artifact name="annotations-16.0.1.pom">
+            <sha256 value="7680ddc26d6ae358e61972d1ae29ca2f575ad3413254e2dbb1d72dbd57ff1f9b" origin="Generated by Gradle"/>
+         </artifact>
+      </component>
       <component group="org.jetbrains" name="annotations" version="20.1.0">
          <artifact name="annotations-20.1.0.jar">
             <sha256 value="edc8e3ec9796a5f41c1ae44b2d318507ee6ac1212f121d93d33699b3d0aff638" origin="Generated by Gradle"/>