Merge "Add filtering of preferences in developer options" into ub-launcher3-master
diff --git a/res/layout/home_settings.xml b/res/layout/home_settings.xml
new file mode 100644
index 0000000..0f2461a
--- /dev/null
+++ b/res/layout/home_settings.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <EditText
+        android:id="@+id/filter_box"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="@dimen/developer_options_filter_margins"
+        android:hint="@string/developer_options_filter_hint"
+        android:visibility="gone"
+        />
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:id="@android:id/list_container"/>
+</LinearLayout>
\ No newline at end of file
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 947e635..969765f 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -247,6 +247,9 @@
     <dimen name="snackbar_min_text_size">12sp</dimen>
     <dimen name="snackbar_max_text_size">14sp</dimen>
 
+<!-- Developer Options -->
+    <dimen name="developer_options_filter_margins">10dp</dimen>
+
 <!-- Theming related -->
     <dimen name="default_dialog_corner_radius">8dp</dimen>
 
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 935bb40..80b511a 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -348,7 +348,8 @@
     <!-- content description for paused work apps list -->
     <string name="work_apps_paused_content_description">Work profile is paused. Work apps can\’t send you notifications, use your battery, or access your location</string>
 
-
+    <!-- A hint shown in launcher settings develop options filter box -->
+    <string name="developer_options_filter_hint">Filter</string>
 
     <!-- A tip shown pointing at work toggle -->
     <string name="work_switch_tip">Pause work apps and notifications</string>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 25f21f3..3b9532e 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -149,6 +149,15 @@
 
     <style name="HomeSettingsTheme" parent="@android:style/Theme.DeviceDefault.Settings">
         <item name="android:navigationBarColor">@android:color/transparent</item>
+        <item name="preferenceTheme">@style/HomeSettingsPreferenceTheme</item>
+    </style>
+
+    <style name="HomeSettingsPreferenceTheme" parent="@style/PreferenceThemeOverlay.v14.Material">
+        <item name="preferenceFragmentCompatStyle">@style/HomeSettingsFragmentCompatStyle</item>
+    </style>
+
+    <style name="HomeSettingsFragmentCompatStyle" parent="@style/PreferenceFragment.Material">
+        <item name="android:layout">@layout/home_settings</item>
     </style>
 
     <!--
diff --git a/src/com/android/launcher3/settings/DeveloperOptionsFragment.java b/src/com/android/launcher3/settings/DeveloperOptionsFragment.java
index b12d04f..4baecb7 100644
--- a/src/com/android/launcher3/settings/DeveloperOptionsFragment.java
+++ b/src/com/android/launcher3/settings/DeveloperOptionsFragment.java
@@ -34,17 +34,23 @@
 import android.os.Build;
 import android.os.Bundle;
 import android.provider.Settings;
+import android.text.Editable;
+import android.text.TextWatcher;
 import android.util.ArrayMap;
 import android.util.Pair;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
+import android.widget.EditText;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceCategory;
 import androidx.preference.PreferenceDataStore;
 import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceGroup;
 import androidx.preference.PreferenceScreen;
 import androidx.preference.PreferenceViewHolder;
 import androidx.preference.SwitchPreference;
@@ -81,6 +87,7 @@
     private PreferenceCategory mPluginsCategory;
     private FlagTogglerPrefUi mFlagTogglerPrefUi;
 
+
     @Override
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
@@ -99,6 +106,50 @@
         maybeAddSandboxCategory();
     }
 
+    private void filterPreferences(String query, PreferenceGroup pg) {
+        int count = pg.getPreferenceCount();
+        int hidden = 0;
+        for (int i = 0; i < count; i++) {
+            Preference preference = pg.getPreference(i);
+            if (preference instanceof PreferenceGroup) {
+                filterPreferences(query, (PreferenceGroup) preference);
+            } else {
+                String title = preference.getTitle().toString().toLowerCase().replace("_", " ");
+                if (query.isEmpty() || title.contains(query)) {
+                    preference.setVisible(true);
+                } else {
+                    preference.setVisible(false);
+                    hidden++;
+                }
+            }
+        }
+        pg.setVisible(hidden != count);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        EditText filterBox = view.findViewById(R.id.filter_box);
+        filterBox.setVisibility(View.VISIBLE);
+        filterBox.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
+
+            }
+
+            @Override
+            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
+
+            }
+
+            @Override
+            public void afterTextChanged(Editable editable) {
+                String query = editable.toString().toLowerCase().replace("_", " ");
+                filterPreferences(query, mPreferenceScreen);
+            }
+        });
+    }
+
     @Override
     public void onDestroy() {
         super.onDestroy();