Translucent Nav Bar now follows app background instead of just being black/white

Cleanup of warnings

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryView.kt

@@ -232,7 +232,7 @@ class LibraryCategoryView @JvmOverloads constructor(context: Context, attrs: Att
 
     override fun dispatchTouchEvent(ev: MotionEvent?): Boolean {
         when (ev?.action) {
-            MotionEvent.ACTION_UP -> lastTouchUpY = ev?.y
+            MotionEvent.ACTION_UP -> lastTouchUpY = ev.y
         }
         return super.dispatchTouchEvent(ev)
     }

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt

@@ -227,7 +227,7 @@ class LibraryController(
           View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
         val statusScrim = view.findViewById(R.id.status_bar_scrim) as View
         statusScrim.setOnApplyWindowInsetsListener(HeightTopWindowInsetsListener)
-        view.doOnApplyWindowInsets { v, insets, padding ->
+        view.doOnApplyWindowInsets { _, insets, _ ->
             view.recycler.updatePaddingRelative(
                 bottom = view.recycler.marginBottom + insets.systemWindowInsetBottom,
                 top = view.recycler.marginTop + insets.systemWindowInsetTop

app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt

@@ -16,6 +16,7 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.FrameLayout
 import android.widget.LinearLayout
+import androidx.core.graphics.ColorUtils
 import com.bluelinelabs.conductor.*
 import com.google.android.material.snackbar.Snackbar
 import eu.kanade.tachiyomi.Migrations
@@ -33,8 +34,8 @@ import eu.kanade.tachiyomi.ui.manga.MangaController
 import eu.kanade.tachiyomi.ui.recent_updates.RecentChaptersController
 import eu.kanade.tachiyomi.ui.recently_read.RecentlyReadController
 import eu.kanade.tachiyomi.ui.setting.SettingsMainController
-import eu.kanade.tachiyomi.util.NoopWindowInsetsListener
 import eu.kanade.tachiyomi.util.doOnApplyWindowInsets
+import eu.kanade.tachiyomi.util.getResourceColor
 import eu.kanade.tachiyomi.util.launchUI
 import eu.kanade.tachiyomi.util.marginBottom
 import eu.kanade.tachiyomi.util.marginTop
@@ -141,12 +142,6 @@ class MainActivity : BaseActivity() {
             true
         }
 
-        /*nav_view.doOnApplyWindowInsets { v, insets, padding ->
-            v.updatePaddingRelative(
-              start = padding.left + insets.systemWindowInsetLeft
-            )
-        }*/
-
         val container: ViewGroup = findViewById(R.id.controller_container)
 
         val content: LinearLayout = findViewById(R.id.main_content)
@@ -156,13 +151,32 @@ class MainActivity : BaseActivity() {
         content.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_STABLE or
           View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN or
           View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
-        nav_view.doOnApplyWindowInsets { v, insets, padding ->
+        nav_view.doOnApplyWindowInsets { v, _, _ ->
             v.updatePaddingRelative(
                 bottom = v.marginBottom,
                 top = v.marginTop
             )
         }
-        content.setOnApplyWindowInsetsListener(NoopWindowInsetsListener)
+        content.setOnApplyWindowInsetsListener { v, insets ->
+            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
+                if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M &&
+                    (v.rootWindowInsets.systemWindowInsetLeft > 0 ||
+                        v.rootWindowInsets.systemWindowInsetRight > 0))
+                    window.navigationBarColor = Color.BLACK
+                else window.navigationBarColor = Color.argb(179, 0, 0, 0)
+            } else if (v.rootWindowInsets.systemWindowInsetLeft > 0
+                || v.rootWindowInsets.systemWindowInsetRight > 0) {
+                window.navigationBarColor =
+                    v.context.getResourceColor(android.R.attr.colorBackground)
+            } else if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q
+                || insets.tappableElementInsets.bottom > 0) {
+                window.navigationBarColor = ColorUtils.setAlphaComponent(
+                    v.context.getResourceColor(android.R.attr.colorBackground), 179)
+            } else window.navigationBarColor = getColor(android.R.color.transparent)
+            v.setPadding(insets.systemWindowInsetLeft, insets.systemWindowInsetTop,
+                insets.systemWindowInsetRight, 0)
+            insets
+        }
         val currentNightMode = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
         if (Build.VERSION.SDK_INT >= 26 && currentNightMode == Configuration.UI_MODE_NIGHT_NO) {
             content.systemUiVisibility = View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsAboutController.kt

@@ -174,7 +174,7 @@ class SettingsAboutController : SettingsController() {
         try {
             val inputDf = SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'", Locale.US)
             inputDf.timeZone = TimeZone.getTimeZone("UTC")
-            val date = inputDf.parse(BuildConfig.BUILD_TIME)
+            val date = inputDf.parse(BuildConfig.BUILD_TIME) ?: return BuildConfig.BUILD_TIME
 
             val outputDf = DateFormat.getDateTimeInstance(
                     DateFormat.MEDIUM, DateFormat.SHORT, Locale.getDefault())

app/src/main/java/eu/kanade/tachiyomi/util/ViewExtensions.kt

@@ -136,14 +136,6 @@ inline val View.marginRight: Int
 inline val View.marginLeft: Int
     get() = (layoutParams as? ViewGroup.MarginLayoutParams)?.leftMargin ?: 0
 
-object NoopWindowInsetsListener : View.OnApplyWindowInsetsListener {
-    override fun onApplyWindowInsets(v: View, insets: WindowInsets): WindowInsets {
-        v.setPadding(insets.systemWindowInsetLeft,insets.systemWindowInsetTop,insets.systemWindowInsetRight,0)
-        //insets.consumeSystemWindowInsets()
-        return insets
-    }
-}
-
 object RecyclerWindowInsetsListener : View.OnApplyWindowInsetsListener {
     override fun onApplyWindowInsets(v: View, insets: WindowInsets): WindowInsets {
         v.setPadding(0,0,0,insets.systemWindowInsetBottom)