Add splash screen for read receipts

// FREEBIE

res/drawable/read_receipt_vector.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="96dp"
+        android:height="96dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="@color/textsecure_primary"
+        android:pathData="M18,7l-1.41,-1.41 -6.34,6.34 1.41,1.41L18,7zM22.24,5.59L11.66,16.17 7.48,12l-1.41,1.41L11.66,19l12,-12 -1.42,-1.41zM0.41,13.41L6,19l1.41,-1.41L1.83,12 0.41,13.41z"/>
+</vector>

res/layout/experience_upgrade_preference_fragment.xml

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
+              xmlns:app="http://schemas.android.com/apk/res-auto"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              tools:background="#FF2090ea">
+
+        <TextView android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:textAppearance="?android:attr/textAppearanceMedium"
+                  android:id="@+id/blurb"
+                  android:textSize="@dimen/onboarding_title_size"
+                  android:textIsSelectable="false"
+                  android:gravity="center_horizontal"
+                  android:paddingLeft="20dp"
+                  android:paddingRight="20dp"
+                  android:fontFamily="sans-serif-light"
+                  android:text="@string/experience_upgrade_preference_fragment__read_receipts_are_here"
+                  android:layout_marginTop="20dp"
+                  android:textColor="@android:color/white" />
+
+        <FrameLayout android:layout_width="wrap_content"
+                     android:layout_height="wrap_content"
+                     android:layout_gravity="center"
+                     android:layout_marginBottom="20dp"
+                     android:layout_marginTop="20dp">
+
+            <ImageView android:layout_width="170dp"
+                       android:layout_height="170dp"
+                       android:src="@drawable/circle_tintable"
+                       android:scaleType="fitCenter"/>
+
+            <ImageView android:layout_width="100dp"
+                       android:layout_height="100dp"
+                       android:layout_gravity="center"
+                       app:srcCompat="@drawable/read_receipt_vector"/>
+        </FrameLayout>
+
+        <TextView android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:id="@+id/subblurb"
+                  android:textSize="@dimen/onboarding_subtitle_size"
+                  android:textIsSelectable="false"
+                  android:gravity="center_horizontal"
+                  android:paddingLeft="20dp"
+                  android:paddingRight="20dp"
+                  android:fontFamily="sans-serif-light"
+                  android:text="@string/experience_upgrade_preference_fragment__optionally_see_and_share_when_messages_have_been_read"
+                  android:textColor="@android:color/white" />
+
+            <android.support.v7.widget.SwitchCompat
+                    android:id="@+id/preference"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center_horizontal"
+                    android:layout_marginTop="20dp"
+                    android:enabled="true"
+                    android:checked="true"
+                    android:text="@string/experience_upgrade_preference_fragment__enable_read_receipts"
+                    android:textSize="20sp"
+                    android:textColor="@android:color/white"
+                    app:theme="@style/Color1SwitchStyle"/>
+
+</LinearLayout>

res/values/strings.xml

@@ -1476,6 +1476,9 @@
     <string name="MediaOverviewActivity_Media">Media</string>
     <string name="MediaOverviewActivity_Documents">Documents</string>
     <string name="media_overview_documents_fragment__no_documents_found">No documents found</string>
+    <string name="experience_upgrade_preference_fragment__read_receipts_are_here">Read receipts are here</string>
+    <string name="experience_upgrade_preference_fragment__optionally_see_and_share_when_messages_have_been_read">Optionally see and share when messages have been read</string>
+    <string name="experience_upgrade_preference_fragment__enable_read_receipts">Enable read receipts</string>
 
 
     <!-- EOF -->

res/values/styles.xml

@@ -259,4 +259,8 @@
     <style name="PreferenceThemeOverlay.Fix" parent="PreferenceThemeOverlay.v14.Material">
     </style>
 
+    <style name="Color1SwitchStyle">
+        <item name="colorControlActivated">@color/white</item>
+    </style>
+
 </resources>

src/org/thoughtcrime/securesms/ExperienceUpgradeActivity.java

@@ -61,7 +61,14 @@ public class ExperienceUpgradeActivity extends BaseActionBarActivity {
              R.string.ExperienceUpgradeActivity_signal_profiles_are_here,
              R.string.ExperienceUpgradeActivity_now_you_can_share_a_profile_photo_and_name_with_friends_on_signal,
              R.string.ExperienceUpgradeActivity_now_you_can_share_a_profile_photo_and_name_with_friends_on_signal,
-             CreateProfileActivity.class);
+             CreateProfileActivity.class),
+    READ_RECEIPTS(299,
+                  new IntroPage(0xFF2090EA,
+                                ReadReceiptsIntroFragment.newInstance()),
+                  R.string.ExperienceUpgradeActivity_signal_profiles_are_here,
+                  R.string.ExperienceUpgradeActivity_now_you_can_share_a_profile_photo_and_name_with_friends_on_signal,
+                  R.string.ExperienceUpgradeActivity_now_you_can_share_a_profile_photo_and_name_with_friends_on_signal,
+                  null);
 
     private            int             version;
     private            List<IntroPage> pages;

src/org/thoughtcrime/securesms/ReadReceiptsIntroFragment.java

@@ -0,0 +1,41 @@
+package org.thoughtcrime.securesms;
+
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v7.widget.SwitchCompat;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import org.thoughtcrime.securesms.util.TextSecurePreferences;
+import org.thoughtcrime.securesms.util.ViewUtil;
+
+public class ReadReceiptsIntroFragment extends Fragment {
+
+  public static ReadReceiptsIntroFragment newInstance() {
+    ReadReceiptsIntroFragment fragment = new ReadReceiptsIntroFragment();
+    Bundle args = new Bundle();
+    fragment.setArguments(args);
+    return fragment;
+  }
+
+  public ReadReceiptsIntroFragment() {}
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    View         v          = inflater.inflate(R.layout.experience_upgrade_preference_fragment, container, false);
+    SwitchCompat preference = ViewUtil.findById(v, R.id.preference);
+
+    preference.setChecked(TextSecurePreferences.isReadReceiptsEnabled(getContext()));
+    preference.setOnCheckedChangeListener((buttonView, isChecked) -> TextSecurePreferences.setReadReceiptsEnabled(getContext(), isChecked));
+
+    return v;
+  }
+}