Sharetap settings screen animation and text.

Change-Id: Ia19426be5a38a191a2786c1e75c4c5833a7c155f

res/drawable/sharetap_anim.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2011, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+<animation-list
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:oneshot="false">
+    <item android:drawable="@drawable/tap1" android:duration="200" />
+    <item android:drawable="@drawable/tap2" android:duration="200" />
+    <item android:drawable="@drawable/tap3" android:duration="200" />
+    <item android:drawable="@drawable/tap4" android:duration="200" />
+    <item android:drawable="@drawable/tap5" android:duration="200" />
+    <item android:drawable="@drawable/tap6" android:duration="600" />
+</animation-list>

res/layout/sharetap.xml

@@ -30,15 +30,31 @@
             android:layout_height="wrap_content"
             android:orientation="vertical">
 
-            <TextView android:id="@+id/zeroclick_explained"
+            <TextView android:id="@+id/sharetap_explained"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="20dip"
                 android:gravity="top"
                 android:text="@string/zeroclick_explained"
             />
-
-
+            <ImageView android:id="@+id/sharetap_image"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+            />
+            <TextView android:id="@+id/sharetap_safety"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="20dip"
+                android:gravity="top"
+                android:text="@string/zeroclick_top"
+            />
+            <TextView android:id="@+id/sharetap_safety"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="20dip"
+                android:gravity="top"
+                android:text="@string/zeroclick_safety"
+            />
         </LinearLayout>
 
     </ScrollView>

res/values/strings.xml

@@ -1098,15 +1098,16 @@
     <!-- NFC settings -->
     <!-- Used in the 1st-level settings screen to turn on NFC -->
     <string name="nfc_quick_toggle_title">NFC</string>
-    <!-- Used to enter the Zero-click sharing preferences screen -->
-    <string name="zeroclick_settings_title">Tap to share</string>
+    <!-- Used to enter the ShareTap sharing preferences screen -->
+    <string name="zeroclick_settings_title">ShareTap</string>
     <string name="zeroclick_settings_summary"></string>
     <string name="zeroclick_on_summary">On</string>
     <string name="zeroclick_off_summary">Off</string>
     <!-- Used in the zero-click sharing preferences screen -->
-    <string name="zeroclick_label">Zero-click sharing</string>
-    <string name="zeroclick_explained">Tap to share allows you to share content from applications, just by tapping your NFC-enabled device to another.</string>
-
+    <string name="zeroclick_label">ShareTap</string>
+    <string name="zeroclick_explained">Share content by touching two NFC-enabled devices back to back.</string>
+    <string name="zeroclick_top">The app on the top device\'s screen sends content to the bottom device.</string>
+    <string name="zeroclick_safety">Your data is safe: nothing is shared unless both devices are on and unlocked.</string>
     <!-- Wi-Fi Settings --> <skip />
     <!-- Used in the 1st-level settings screen to turn on Wi-Fi -->
     <string name="wifi_quick_toggle_title">Wi-Fi</string>

res/xml/wireless_settings.xml

@@ -39,7 +39,7 @@
         android:persistent="false" />
 
     <PreferenceScreen
-        android:fragment="com.android.settings.nfc.ZeroClick"
+        android:fragment="com.android.settings.nfc.ShareTap"
         android:key="zeroclick_settings"
         android:title="@string/zeroclick_settings_title"
         android:summary="@string/zeroclick_settings_summary" >

src/com/android/settings/nfc/ShareTap.java

@@ -19,20 +19,25 @@ package com.android.settings.nfc;
 import android.app.ActionBar;
 import android.app.Activity;
 import android.app.Fragment;
+import android.graphics.drawable.AnimationDrawable;
 import android.nfc.NfcAdapter;
 import android.os.Bundle;
+import android.os.Handler;
 import android.preference.PreferenceActivity;
 import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.CompoundButton;
+import android.widget.ImageView;
 import android.widget.Switch;
 import com.android.settings.R;
 
-public class ZeroClick extends Fragment
+public class ShareTap extends Fragment
         implements CompoundButton.OnCheckedChangeListener {
     private View mView;
+    private AnimationDrawable mAnimation;
+    private ImageView mImageView;
     private NfcAdapter mNfcAdapter;
     private Switch mActionBarSwitch;
 
@@ -69,25 +74,42 @@ public class ZeroClick extends Fragment
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
             Bundle savedInstanceState) {
-        mView = inflater.inflate(R.layout.zeroclick, container, false);
+        mView = inflater.inflate(R.layout.sharetap, container, false);
         initView(mView);
         return mView;
     }
 
     private void initView(View view) {
-        mNfcAdapter = NfcAdapter.getDefaultAdapter(getActivity());
         mActionBarSwitch.setOnCheckedChangeListener(this);
         mActionBarSwitch.setChecked(mNfcAdapter.isZeroClickEnabled());
     }
 
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        mImageView = (ImageView) getActivity().findViewById(R.id.sharetap_image);
+        mImageView.setBackgroundResource(R.drawable.sharetap_anim);
+        mAnimation = (AnimationDrawable) mImageView.getBackground();
+
+    }
+
     @Override
     public void onPause() {
         super.onPause();
+        mAnimation.stop();
     }
 
     @Override
     public void onResume() {
         super.onResume();
+        // This is nasty: the animation can only be started once the fragment
+        // is attached to the window, and there are no callbacks for that.
+        mImageView.post(new Runnable() {
+            public void run() {
+                mAnimation.start();
+            }
+        });
     }
 
     @Override