Dynamic color setting

app/src/main/java/org/tasks/injection/ActivityModule.kt

@@ -1,6 +1,8 @@
 package org.tasks.injection
 
 import android.app.Activity
+import android.util.TypedValue
+import com.google.android.material.color.DynamicColors
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
@@ -23,6 +25,19 @@ class ActivityModule {
 
     @Provides
     @ActivityScoped
-    fun getThemeColor(colorProvider: ColorProvider, preferences: Preferences): ThemeColor
-            = colorProvider.getThemeColor(preferences.defaultThemeColor, true)
-}
+    fun getThemeColor(
+        colorProvider: ColorProvider,
+        preferences: Preferences,
+        activity: Activity
+    ): ThemeColor {
+        return if (preferences.dynamicColor && DynamicColors.isDynamicColorAvailable()) {
+            val context = DynamicColors.wrapContextIfAvailable(activity)
+            val typedValue = TypedValue()
+            context.theme.resolveAttribute(com.google.android.material.R.attr.colorPrimary, typedValue, true)
+            val dynamicColor = typedValue.data
+            ThemeColor(context, dynamicColor)
+        } else {
+            colorProvider.getThemeColor(preferences.defaultThemeColor, true)
+        }
+    }
+}

app/src/main/java/org/tasks/preferences/Preferences.kt

@@ -549,6 +549,9 @@ class Preferences @JvmOverloads constructor(
     val defaultThemeColor: Int
         get() = getInt(R.string.p_theme_color, BLUE_500)
 
+    val dynamicColor: Boolean
+        get() = getBoolean(R.string.p_dynamic_color, false)
+
     val markdown: Boolean
         get() = getBoolean(R.string.p_markdown, false)
 

app/src/main/java/org/tasks/preferences/fragments/LookAndFeel.kt

@@ -11,6 +11,8 @@ import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.os.LocaleListCompat
 import androidx.lifecycle.lifecycleScope
 import androidx.preference.Preference
+import androidx.preference.SwitchPreferenceCompat
+import com.google.android.material.color.DynamicColors
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.launch
 import org.tasks.LocalBroadcastManager
@@ -89,6 +91,14 @@ class LookAndFeel : InjectingPreferenceFragment() {
         }
 
         openUrl(R.string.translations, R.string.url_translations)
+        val themeColor = findPreference(R.string.p_theme_color)
+        val dynamicColor = findPreference(R.string.p_dynamic_color) as SwitchPreferenceCompat
+        themeColor.isVisible = !dynamicColor.isChecked
+        dynamicColor.setOnPreferenceChangeListener { _, newValue ->
+            themeColor.isVisible = !(newValue as Boolean)
+            true
+        }
+        requires(DynamicColors.isDynamicColorAvailable(), R.string.p_dynamic_color)
     }
 
     override fun onResume() {
@@ -101,6 +111,19 @@ class LookAndFeel : InjectingPreferenceFragment() {
             REQUEST_COLOR_PICKER
         )
         updateLauncherPreference()
+
+        if (DynamicColors.isDynamicColorAvailable()) {
+            (findPreference(R.string.p_dynamic_color) as SwitchPreferenceCompat).apply {
+                if (inventory.hasPro) {
+                    summary = null
+                    isEnabled = true
+                } else {
+                    summary = getString(R.string.requires_pro_subscription)
+                    isEnabled = false
+                    isChecked = false
+                }
+            }
+        }
     }
 
     private fun updateLauncherPreference() {

app/src/main/res/values/keys.xml

@@ -436,4 +436,5 @@
   <string name="p_last_sync">last_sync_time</string>
   <string name="p_microsoft_sync">microsoft_sync</string>
   <string name="p_multiline_title">multiline_title</string>
+  <string name="p_dynamic_color">dynamic_color</string>
 </resources>

app/src/main/res/xml/preferences_look_and_feel.xml

@@ -7,6 +7,11 @@
     android:key="@string/p_theme"
     android:title="@string/theme" />
 
+  <SwitchPreferenceCompat
+    android:defaultValue="false"
+    android:key="@string/p_dynamic_color"
+    android:title="@string/theme_dynamic" />
+
   <Preference
     android:key="@string/p_theme_color"
     android:title="@string/color" />