feat: amoled dark mode (#58)

app/src/main/assets/lang/en_US.json

@@ -67,7 +67,8 @@
         "preview_resolution": "Override Preview Resolution",
         "picture_resolution": "Override Picture Resolution",
         "force_highest_frame_rate": "Force Highest Frame Rate",
-        "force_camera_source_encoding": "Force Camera Source Encoding"
+        "force_camera_source_encoding": "Force Camera Source Encoding",
+        "amoled_dark_mode": "AMOLED Dark Mode"
     },
 
     "option": {

app/src/main/kotlin/me/rhunk/snapenhance/config/ConfigProperty.kt

@@ -346,6 +346,12 @@ enum class ConfigProperty(
     "description.meo_passcode_bypass",
         ConfigCategory.EXPERIMENTAL_DEBUGGING,
         ConfigStateValue(false)
+    ),
+    AMOLED_DARK_MODE(
+        "property.amoled_dark_mode",
+        "description.amoled_dark_mode",
+        ConfigCategory.EXPERIMENTAL_DEBUGGING,
+        ConfigStateValue(false)
     );
 
     companion object {

app/src/main/kotlin/me/rhunk/snapenhance/features/impl/experiments/AmoledDarkMode.kt

@@ -0,0 +1,49 @@
+package me.rhunk.snapenhance.features.impl.experiments
+
+import android.annotation.SuppressLint
+import android.content.res.TypedArray
+import android.graphics.drawable.ColorDrawable
+import me.rhunk.snapenhance.Constants
+import me.rhunk.snapenhance.config.ConfigProperty
+import me.rhunk.snapenhance.features.Feature
+import me.rhunk.snapenhance.features.FeatureLoadParams
+import me.rhunk.snapenhance.hook.HookStage
+import me.rhunk.snapenhance.hook.Hooker
+import me.rhunk.snapenhance.hook.hook
+
+class AmoledDarkMode : Feature("Amoled Dark Mode", loadParams = FeatureLoadParams.ACTIVITY_CREATE_SYNC) {
+    @SuppressLint("DiscouragedApi")
+    override fun onActivityCreate() {
+        if (!context.config.bool(ConfigProperty.AMOLED_DARK_MODE)) return
+        val attributeCache = mutableMapOf<String, Int>()
+
+        fun getAttribute(name: String): Int {
+            if (attributeCache.containsKey(name)) return attributeCache[name]!!
+            return context.resources.getIdentifier(name, "attr", Constants.SNAPCHAT_PACKAGE_NAME).also { attributeCache[name] = it }
+        }
+
+        context.androidContext.theme.javaClass.getMethod("obtainStyledAttributes", IntArray::class.java).hook(HookStage.AFTER) { param ->
+            val array = param.arg<IntArray>(0)
+            val result = param.getResult() as TypedArray
+
+            fun ephemeralHook(methodName: String, content: Any) {
+                Hooker.ephemeralHookObjectMethod(result::class.java, result, methodName, HookStage.BEFORE) {
+                    it.setResult(content)
+                }
+            }
+
+            when (array[0]) {
+                getAttribute("sigColorTextPrimary") -> {
+                    ephemeralHook("getColor", 0xFFFFFFFF.toInt())
+                }
+                getAttribute("sigColorBackgroundMain") -> {
+                    ephemeralHook("getColor", 0xFF000000.toInt())
+                }
+                getAttribute("actionSheetBackgroundDrawable"),
+                getAttribute("actionSheetRoundedBackgroundDrawable") -> {
+                    ephemeralHook("getDrawable", ColorDrawable(0xFF000000.toInt()))
+                }
+            }
+        }
+    }
+}

app/src/main/kotlin/me/rhunk/snapenhance/features/impl/ui/menus/ViewAppearanceHelper.kt

@@ -16,19 +16,17 @@ object ViewAppearanceHelper {
     )
     fun applyTheme(viewModel: View, view: TextView) {
         val sigColorTextPrimary = viewModel.context.theme.obtainStyledAttributes(
-            intArrayOf(
+            intArrayOf(viewModel.resources.getIdentifier("sigColorTextPrimary", "attr", Constants.SNAPCHAT_PACKAGE_NAME))
-                viewModel.resources.getIdentifier(
+        ).getColor(0, 0)
-                    "sigColorTextPrimary",
+
-                    "attr",
+        val sigColorBackgroundMain = viewModel.context.theme.obtainStyledAttributes(
-                    Constants.SNAPCHAT_PACKAGE_NAME
+            intArrayOf(viewModel.resources.getIdentifier("sigColorBackgroundMain", "attr", Constants.SNAPCHAT_PACKAGE_NAME))
-                )
+        ).getColor(0, 0)
-            )
-        )
 
         val snapchatFontResId = view.context.resources.getIdentifier("avenir_next_medium", "font", "com.snapchat.android")
         //remove the shadow
-        view.setBackgroundColor(0x00000000)
+        view.setBackgroundColor(sigColorBackgroundMain)
-        view.setTextColor(sigColorTextPrimary.getColor(0, 0))
+        view.setTextColor(sigColorTextPrimary)
         view.setShadowLayer(0F, 0F, 0F, 0)
         view.outlineProvider = null
         view.gravity = Gravity.LEFT or Gravity.CENTER_VERTICAL
@@ -49,7 +47,7 @@ object ViewAppearanceHelper {
                     view.setBackgroundColor(0x5395026)
                 }
                 MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> {
-                    view.setBackgroundColor(0x00000000)
+                    view.setBackgroundColor(sigColorBackgroundMain)
                 }
             }
             false

app/src/main/kotlin/me/rhunk/snapenhance/manager/impl/FeatureManager.kt

@@ -9,6 +9,7 @@ import me.rhunk.snapenhance.features.impl.ConfigEnumKeys
 import me.rhunk.snapenhance.features.impl.Messaging
 import me.rhunk.snapenhance.features.impl.downloader.AntiAutoDownload
 import me.rhunk.snapenhance.features.impl.downloader.MediaDownloader
+import me.rhunk.snapenhance.features.impl.experiments.AmoledDarkMode
 import me.rhunk.snapenhance.features.impl.experiments.AppPasscode
 import me.rhunk.snapenhance.features.impl.experiments.InfiniteStoryBoost
 import me.rhunk.snapenhance.features.impl.experiments.MeoPasscodeBypass
@@ -81,6 +82,7 @@ class FeatureManager(private val context: ModContext) : Manager {
         register(AutoUpdater::class)
         register(CameraTweaks::class)
         register(InfiniteStoryBoost::class)
+        register(AmoledDarkMode::class)
 
         initializeFeatures()
     }