highlight selected preference

ankidroid · May 16, 2024 · 5f5c0b4 · 5f5c0b4
1 parent bc58dce
commit 5f5c0b4
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Showing 3 changed files with 59 additions and 3 deletions.
diff --git a/AnkiDroid/src/main/java/com/ichi2/anki/preferences/HeaderFragment.kt b/AnkiDroid/src/main/java/com/ichi2/anki/preferences/HeaderFragment.kt
@@ -19,19 +19,29 @@ import android.os.Bundle
 import android.view.View
 import android.view.ViewGroup
 import androidx.appcompat.app.AppCompatActivity
+import androidx.fragment.app.FragmentContainerView
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import com.bytehamster.lib.preferencesearch.SearchConfiguration
 import com.bytehamster.lib.preferencesearch.SearchPreference
 import com.ichi2.anki.BuildConfig
 import com.ichi2.anki.R
 import com.ichi2.compat.CompatHelper
+import com.ichi2.preferences.HeaderPreference
 import com.ichi2.utils.AdaptionUtil
 
 class HeaderFragment : PreferenceFragmentCompat() {
+    private var selectedHeaderPreference: HeaderPreference? = null
+    private var selectedHeaderPreferenceKey: String = KEY_SELECTED_HEADER_PREF
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         setPreferencesFromResource(R.xml.preference_headers, rootKey)
 
+        if (savedInstanceState != null) {
+            selectedHeaderPreferenceKey = savedInstanceState.getString(KEY_SELECTED_HEADER_PREF).toString()
+        }
+
+        highlightHeaderPreference(requirePreference<HeaderPreference>(selectedHeaderPreferenceKey))
+
         requirePreference<Preference>(R.string.pref_advanced_screen_key).apply {
             if (AdaptionUtil.isXiaomiRestrictedLearningDevice) {
                 isVisible = false
@@ -48,6 +58,35 @@ class HeaderFragment : PreferenceFragmentCompat() {
         )
     }
 
+    private fun highlightHeaderPreference(headerPreference: HeaderPreference) {
+        if (!hasLateralNavigation()) {
+            return
+        }
+        selectedHeaderPreference?.setHighlighted(false)
+        selectedHeaderPreference = headerPreference
+        selectedHeaderPreference?.setHighlighted(true)
+        selectedHeaderPreferenceKey = headerPreference.key
+    }
+
+    private fun hasLateralNavigation(): Boolean {
+        return requireActivity().findViewById<FragmentContainerView>(R.id.lateral_nav_container) != null
+    }
+
+    override fun onPreferenceTreeClick(preference: Preference): Boolean {
+        highlightHeaderPreference(preference as HeaderPreference)
+        return super.onPreferenceTreeClick(preference)
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putString(KEY_SELECTED_HEADER_PREF, selectedHeaderPreferenceKey)
+    }
+
+    override fun onViewStateRestored(savedInstanceState: Bundle?) {
+        super.onViewStateRestored(savedInstanceState)
+        highlightHeaderPreference(requirePreference<HeaderPreference>(selectedHeaderPreferenceKey))
+    }
+
     override fun onStart() {
         super.onStart()
         requireActivity().setTitle(R.string.settings)
@@ -66,6 +105,7 @@ class HeaderFragment : PreferenceFragmentCompat() {
     }
 
     companion object {
+        private const val KEY_SELECTED_HEADER_PREF = "generalScreen"
         fun configureSearchBar(activity: AppCompatActivity, searchConfiguration: SearchConfiguration) {
             with(searchConfiguration) {
                 setActivity(activity)

diff --git a/AnkiDroid/src/main/java/com/ichi2/preferences/HeaderPreference.kt b/AnkiDroid/src/main/java/com/ichi2/preferences/HeaderPreference.kt
@@ -19,6 +19,8 @@ import android.content.Context
 import android.util.AttributeSet
 import androidx.core.content.withStyledAttributes
 import androidx.preference.Preference
+import androidx.preference.PreferenceViewHolder
+import com.google.android.material.color.MaterialColors
 import com.ichi2.anki.LanguageUtils
 import com.ichi2.anki.R
 
@@ -33,6 +35,8 @@ constructor(
     defStyleAttr: Int = androidx.preference.R.attr.preferenceStyle,
     defStyleRes: Int = androidx.preference.R.style.Preference
 ) : Preference(context, attrs, defStyleAttr, defStyleRes) {
+    private var isHighlighted = false
+    private val highlightColor: Int = MaterialColors.getColor(context, R.attr.currentDeckBackgroundColor, 0)
 
     init {
         context.withStyledAttributes(attrs, R.styleable.HeaderPreference) {
@@ -43,6 +47,18 @@ constructor(
         }
     }
 
+    override fun onBindViewHolder(holder: PreferenceViewHolder) {
+        super.onBindViewHolder(holder)
+        if (isHighlighted) {
+            holder.itemView.setBackgroundColor(highlightColor)
+        }
+    }
+
+    fun setHighlighted(highlight: Boolean) {
+        isHighlighted = highlight
+        notifyChanged()
+    }
+
     companion object {
         /**
          * Join [entries] with ` • ` as separator

diff --git a/AnkiDroid/src/main/res/xml/preference_headers.xml b/AnkiDroid/src/main/res/xml/preference_headers.xml
@@ -104,15 +104,15 @@
         android:icon="@drawable/ic_tune_white"
         app:summaryEntries="@array/advanced_summary_entries">
     </com.ichi2.preferences.HeaderPreference>
-    <Preference
+    <com.ichi2.preferences.HeaderPreference
         android:key="@string/pref_dev_options_screen_key"
         android:title="@string/pref_cat_dev_options"
         android:icon="@drawable/ic_code"
         android:fragment="com.ichi2.anki.preferences.DevOptionsFragment"
         app:isPreferenceVisible="false">
-    </Preference>
+    </com.ichi2.preferences.HeaderPreference>
     <!-- About -->
-    <Preference
+    <com.ichi2.preferences.HeaderPreference
         android:key="@string/about_screen_key"
         android:icon="@drawable/ic_outline_info_24"
         android:title="@string/pref_cat_about_title"