LatinIME: Add icons to settings items

Change-Id: I858ae6d8a25d0f6e7d5eac204b813a45c869d642

java/res/drawable/ic_settings_advanced.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-FileCopyrightText: Material Design Authors / Google LLC
+    SPDX-License-Identifier: Apache-2.0
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?android:attr/textColorPrimary"
+      android:pathData="M240,560Q207,560 183.5,536.5Q160,513 160,480Q160,447 183.5,423.5Q207,400 240,400Q273,400 296.5,423.5Q320,447 320,480Q320,513 296.5,536.5Q273,560 240,560ZM480,560Q447,560 423.5,536.5Q400,513 400,480Q400,447 423.5,423.5Q447,400 480,400Q513,400 536.5,423.5Q560,447 560,480Q560,513 536.5,536.5Q513,560 480,560ZM720,560Q687,560 663.5,536.5Q640,513 640,480Q640,447 663.5,423.5Q687,400 720,400Q753,400 776.5,423.5Q800,447 800,480Q800,513 776.5,536.5Q753,560 720,560Z"/>
+</vector>

java/res/drawable/ic_settings_appearance.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-FileCopyrightText: Material Design Authors / Google LLC
+    SPDX-License-Identifier: Apache-2.0
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?android:attr/textColorPrimary"
+      android:pathData="M480,880Q398,880 325,848.5Q252,817 197.5,762.5Q143,708 111.5,635Q80,562 80,480Q80,397 112.5,324Q145,251 200.5,197Q256,143 330,111.5Q404,80 488,80Q568,80 639,107.5Q710,135 763.5,183.5Q817,232 848.5,298.5Q880,365 880,442Q880,557 810,618.5Q740,680 640,680L566,680Q557,680 553.5,685Q550,690 550,696Q550,708 565,730.5Q580,753 580,782Q580,832 552.5,856Q525,880 480,880ZM480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480L480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480Q480,480 480,480ZM260,520Q286,520 303,503Q320,486 320,460Q320,434 303,417Q286,400 260,400Q234,400 217,417Q200,434 200,460Q200,486 217,503Q234,520 260,520ZM380,360Q406,360 423,343Q440,326 440,300Q440,274 423,257Q406,240 380,240Q354,240 337,257Q320,274 320,300Q320,326 337,343Q354,360 380,360ZM580,360Q606,360 623,343Q640,326 640,300Q640,274 623,257Q606,240 580,240Q554,240 537,257Q520,274 520,300Q520,326 537,343Q554,360 580,360ZM700,520Q726,520 743,503Q760,486 760,460Q760,434 743,417Q726,400 700,400Q674,400 657,417Q640,434 640,460Q640,486 657,503Q674,520 700,520ZM480,800Q489,800 494.5,795Q500,790 500,782Q500,768 485,749Q470,730 470,692Q470,650 499,625Q528,600 570,600L640,600Q706,600 753,561.5Q800,523 800,442Q800,321 707.5,240.5Q615,160 488,160Q352,160 256,253Q160,346 160,480Q160,613 253.5,706.5Q347,800 480,800Z"/>
+</vector>

java/res/drawable/ic_settings_gesture.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-FileCopyrightText: Material Design Authors / Google LLC
+    SPDX-License-Identifier: Apache-2.0
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?android:attr/textColorPrimary"
+      android:pathData="M554,842Q501,842 463.5,805.5Q426,769 426,716Q426,686 439,652Q452,618 478.5,587.5Q505,557 545.5,533.5Q586,510 641,501Q638,461 622,444.5Q606,428 582,428Q552,428 517,453Q482,478 434,535Q356,628 319.5,656Q283,684 241,684Q190,684 155,646.5Q120,609 120,556Q120,503 143.5,447Q167,391 223,313Q241,287 250.5,269Q260,251 260,240Q260,233 257.5,229.5Q255,226 250,226Q240,226 225,238.5Q210,251 190,276L120,206Q152,167 185,146.5Q218,126 250,126Q297,126 328.5,158.5Q360,191 360,238Q360,267 345,301.5Q330,336 295,384Q257,438 238.5,479Q220,520 220,549Q220,566 225.5,575Q231,584 241,584Q253,584 274.5,563.5Q296,543 361,467Q424,392 475,360Q526,328 582,328Q659,328 697.5,379Q736,430 741,496L840,496L840,596L741,596Q735,684 692,763Q649,842 554,842ZM556,742Q595,742 614.5,697.5Q634,653 640,603Q584,617 555,651.5Q526,686 526,712Q526,726 534,734Q542,742 556,742Z"/>
+</vector>

java/res/drawable/ic_settings_languages.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-FileCopyrightText: Material Design Authors / Google LLC
+    SPDX-License-Identifier: Apache-2.0
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?android:attr/textColorPrimary"
+      android:pathData="M480,880Q398,880 325,848.5Q252,817 197.5,762.5Q143,708 111.5,635Q80,562 80,480Q80,397 111.5,324.5Q143,252 197.5,197.5Q252,143 325,111.5Q398,80 480,80Q563,80 635.5,111.5Q708,143 762.5,197.5Q817,252 848.5,324.5Q880,397 880,480Q880,562 848.5,635Q817,708 762.5,762.5Q708,817 635.5,848.5Q563,880 480,880ZM480,798Q506,762 525,723Q544,684 556,640L404,640Q416,684 435,723Q454,762 480,798ZM376,782Q358,749 344.5,713.5Q331,678 322,640L204,640Q233,690 276.5,727Q320,764 376,782ZM584,782Q640,764 683.5,727Q727,690 756,640L638,640Q629,678 615.5,713.5Q602,749 584,782ZM170,560L306,560Q303,540 301.5,520.5Q300,501 300,480Q300,459 301.5,439.5Q303,420 306,400L170,400Q165,420 162.5,439.5Q160,459 160,480Q160,501 162.5,520.5Q165,540 170,560ZM386,560L574,560Q577,540 578.5,520.5Q580,501 580,480Q580,459 578.5,439.5Q577,420 574,400L386,400Q383,420 381.5,439.5Q380,459 380,480Q380,501 381.5,520.5Q383,540 386,560ZM654,560L790,560Q795,540 797.5,520.5Q800,501 800,480Q800,459 797.5,439.5Q795,420 790,400L654,400Q657,420 658.5,439.5Q660,459 660,480Q660,501 658.5,520.5Q657,540 654,560ZM638,320L756,320Q727,270 683.5,233Q640,196 584,178Q602,211 615.5,246.5Q629,282 638,320ZM404,320L556,320Q544,276 525,237Q506,198 480,162Q454,198 435,237Q416,276 404,320ZM204,320L322,320Q331,282 344.5,246.5Q358,211 376,178Q320,196 276.5,233Q233,270 204,320Z"/>
+</vector>

java/res/drawable/ic_settings_preferences.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-FileCopyrightText: Material Design Authors / Google LLC
+    SPDX-License-Identifier: Apache-2.0
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?android:attr/textColorPrimary"
+      android:pathData="M427,840L427,615L487,615L487,698L840,698L840,758L487,758L487,840L427,840ZM120,758L120,698L367,698L367,758L120,758ZM307,592L307,510L120,510L120,450L307,450L307,366L367,366L367,592L307,592ZM427,510L427,450L840,450L840,510L427,510ZM593,345L593,120L653,120L653,202L840,202L840,262L653,262L653,345L593,345ZM120,262L120,202L533,202L533,262L120,262Z"/>
+</vector>

java/res/drawable/ic_settings_privacy.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-FileCopyrightText: Material Design Authors / Google LLC
+    SPDX-License-Identifier: Apache-2.0
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?android:attr/textColorPrimary"
+      android:pathData="M240,880Q207,880 183.5,856.5Q160,833 160,800L160,400Q160,367 183.5,343.5Q207,320 240,320L280,320L280,240Q280,157 338.5,98.5Q397,40 480,40Q563,40 621.5,98.5Q680,157 680,240L680,320L720,320Q753,320 776.5,343.5Q800,367 800,400L800,800Q800,833 776.5,856.5Q753,880 720,880L240,880ZM240,800L720,800Q720,800 720,800Q720,800 720,800L720,400Q720,400 720,400Q720,400 720,400L240,400Q240,400 240,400Q240,400 240,400L240,800Q240,800 240,800Q240,800 240,800ZM480,680Q513,680 536.5,656.5Q560,633 560,600Q560,567 536.5,543.5Q513,520 480,520Q447,520 423.5,543.5Q400,567 400,600Q400,633 423.5,656.5Q447,680 480,680ZM360,320L600,320L600,240Q600,190 565,155Q530,120 480,120Q430,120 395,155Q360,190 360,240L360,320ZM240,800Q240,800 240,800Q240,800 240,800L240,400Q240,400 240,400Q240,400 240,400L240,400Q240,400 240,400Q240,400 240,400L240,800Q240,800 240,800Q240,800 240,800L240,800Z"/>
+</vector>

java/res/drawable/ic_settings_spellcheck.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    SPDX-FileCopyrightText: Material Design Authors / Google LLC
+    SPDX-License-Identifier: Apache-2.0
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?android:attr/textColorPrimary"
+      android:pathData="M564,880L394,710L450,654L564,768L790,542L846,598L564,880ZM120,640L314,120L408,120L602,640L510,640L464,508L254,508L208,640L120,640ZM282,432L438,432L362,216L358,216L282,432Z"/>
+</vector>

java/res/xml/prefs.xml

@@ -21,25 +21,31 @@
     <PreferenceScreen
         android:fragment="com.android.inputmethod.latin.settings.PreferencesSettingsFragment"
         android:title="@string/settings_screen_preferences"
-        android:key="screen_preferences" />
+        android:key="screen_preferences"
+        android:icon="@drawable/ic_settings_preferences" />
     <PreferenceScreen
         android:fragment="com.android.inputmethod.latin.settings.AccountsSettingsFragment"
         android:title="@string/settings_screen_accounts"
-        android:key="screen_accounts" />
+        android:key="screen_accounts"
+        android:icon="@drawable/ic_settings_privacy" />
     <PreferenceScreen
         android:fragment="com.android.inputmethod.latin.settings.AppearanceSettingsFragment"
         android:title="@string/settings_screen_appearance"
-        android:key="screen_appearance" />
+        android:key="screen_appearance"
+        android:icon="@drawable/ic_settings_appearance" />
     <PreferenceScreen
         android:fragment="com.android.inputmethod.latin.settings.GestureSettingsFragment"
         android:title="@string/settings_screen_gesture"
-        android:key="screen_gesture" />
+        android:key="screen_gesture"
+        android:icon="@drawable/ic_settings_gesture" />
     <PreferenceScreen
         android:fragment="com.android.inputmethod.latin.settings.CorrectionSettingsFragment"
         android:title="@string/settings_screen_correction"
-        android:key="screen_correction" />
+        android:key="screen_correction"
+        android:icon="@drawable/ic_settings_spellcheck" />
     <PreferenceScreen
         android:fragment="com.android.inputmethod.latin.settings.AdvancedSettingsFragment"
         android:title="@string/settings_screen_advanced"
-        android:key="screen_advanced" />
+        android:key="screen_advanced"
+        android:icon="@drawable/ic_settings_advanced" />
 </PreferenceScreen>

java/src/com/android/inputmethod/latin/settings/SettingsFragment.java

@@ -50,6 +50,7 @@ public final class SettingsFragment extends InputMethodSettingsFragment {
         setHasOptionsMenu(true);
         setInputMethodSettingsCategoryTitle(R.string.language_selection_title);
         setSubtypeEnablerTitle(R.string.select_language);
+        setSubtypeEnablerIcon(R.drawable.ic_settings_languages);
         addPreferencesFromResource(R.xml.prefs);
         final PreferenceScreen preferenceScreen = getPreferenceScreen();
         preferenceScreen.setTitle(