docs: fix some notification code for wear stacks

Change-Id: Iea6b444480b161ab08a9ba02dbabb22773862cf0

3 files changed, 178 insertions, 19 deletions

diff --git a/docs/html/guide/topics/resources/string-resource.jd b/docs/html/guide/topics/resources/string-resource.jd
index 5a96ba1..e2326ec 100644
--- a/docs/html/guide/topics/resources/string-resource.jd
+++ b/docs/html/guide/topics/resources/string-resource.jd
@@ -20,9 +20,6 @@ your application with strings:</p>
 information about styling and formatting strings, see the section about <a
 href="#FormattingAndStyling">Formatting and Styling</a>.</p>
 
-
-
-
 <h2 id="String">String</h2>
 
 <p>A single string that can be referenced from the application or from other resource files (such
@@ -433,7 +430,7 @@ java.lang.Object...)">format</a>(res.getString(R.string.welcome_messages), usern
 
 
 
-<h3>Styling with HTML markup</h3>
+<h3 id="StylingWithHTML">Styling with HTML markup</h3>
 
 <p>You can add styling to your strings with HTML markup. For example:</p>
 <pre>
@@ -497,5 +494,107 @@ java.lang.Object...)">format</a>(res.getString(R.string.welcome_messages), escap
 CharSequence styledText = Html.fromHtml(text);
 </pre>
 
+<h2 id="StylingWithSpannables">Styling with Spannables</h2>
+<p>
+A {@link android.text.Spannable} is a text object that you can style with
+typeface properties such as color and font weight. You use
+{@link android.text.SpannableStringBuilder} to build
+your text and then apply styles defined in the {@link android.text.style}
+package to the text.
+</p>
+
+<p>You can use the following helper methods to set up much of the work
+of creating spannable text:</p>
+
+<pre style="pretty-print">
+/**
+ * Returns a CharSequence that concatenates the specified array of CharSequence
+ * objects and then applies a list of zero or more tags to the entire range.
+ *
+ * @param content an array of character sequences to apply a style to
+ * @param tags the styled span objects to apply to the content
+ *        such as android.text.style.StyleSpan
+ *
+ */
+private static CharSequence apply(CharSequence[] content, Object... tags) {
+    SpannableStringBuilder text = new SpannableStringBuilder();
+    openTags(text, tags);
+    for (CharSequence item : content) {
+        text.append(item);
+    }
+    closeTags(text, tags);
+    return text;
+}
+
+/**
+ * Iterates over an array of tags and applies them to the beginning of the specified
+ * Spannable object so that future text appended to the text will have the styling
+ * applied to it. Do not call this method directly.
+ */
+private static void openTags(Spannable text, Object[] tags) {
+    for (Object tag : tags) {
+        text.setSpan(tag, 0, 0, Spannable.SPAN_MARK_MARK);
+    }
+}
+
+/**
+ * "Closes" the specified tags on a Spannable by updating the spans to be
+ * endpoint-exclusive so that future text appended to the end will not take
+ * on the same styling. Do not call this method directly.
+ */
+private static void closeTags(Spannable text, Object[] tags) {
+    int len = text.length();
+    for (Object tag : tags) {
+        if (len > 0) {
+            text.setSpan(tag, 0, len, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+        } else {
+            text.removeSpan(tag);
+        }
+    }
+}
+</pre>
 
+<p>
+The following <code>bold</code>, <code>italic</code>, and <code>color</code>
+methods show you how to call the helper methods to apply
+styles defined in the {@link android.text.style} package. You
+can create similar methods to do other types of text styling.
+</p>
+
+<pre style="pretty-print">
+/**
+ * Returns a CharSequence that applies boldface to the concatenation
+ * of the specified CharSequence objects.
+ */
+public static CharSequence bold(CharSequence... content) {
+    return apply(content, new StyleSpan(Typeface.BOLD));
+}
+
+/**
+ * Returns a CharSequence that applies italics to the concatenation
+ * of the specified CharSequence objects.
+ */
+public static CharSequence italic(CharSequence... content) {
+    return apply(content, new StyleSpan(Typeface.ITALIC));
+}
+
+/**
+ * Returns a CharSequence that applies a foreground color to the
+ * concatenation of the specified CharSequence objects.
+ */
+public static CharSequence color(int color, CharSequence... content) {
+    return apply(content, new ForegroundColorSpan(color));
+}
+</pre>
 
+<p>
+Here's an example of how to chain these methods to create a character sequence
+with different types of styling applied to individual words:
+</p>
+
+<pre style="pretty-print">
+// Create an italic "hello, " a red "world",
+// and bold the entire sequence.
+CharSequence text = bold(italic(res.getString(R.string.hello)),
+    color(Color.RED, res.getString(R.string.world)));
+</pre>
\ No newline at end of file
diff --git a/docs/html/wear/images/notif_summary_framed.png b/docs/html/wear/images/notif_summary_framed.png
new file mode 100644
index 0000000..17b1703
--- /dev/null
+++ b/docs/html/wear/images/notif_summary_framed.png
diff --git a/docs/html/wear/notifications/stacks.jd b/docs/html/wear/notifications/stacks.jd
index 7f955f6..a2d34ce 100644
--- a/docs/html/wear/notifications/stacks.jd
+++ b/docs/html/wear/notifications/stacks.jd
@@ -2,8 +2,8 @@ page.title=Stacking Notifications
 
 @jd:body
 
-<img src="{@docRoot}wear/images/11_bundles_B.png" height="200" width="169" style="float:right;margin:0 0 20px 40px" />
-<img src="{@docRoot}wear/images/11_bundles_A.png" height="200" width="169" style="float:right;margin:0 0 20px 40px" />
+<img src="{@docRoot}wear/images/11_bundles_B.png" height="200" width="169" style="float:right;margin:0 0 20px 40px" alt="" />
+<img src="{@docRoot}wear/images/11_bundles_A.png" height="200" width="169" style="float:right;margin:0 0 20px 40px" alt="" />
 
 <p>When creating notifications for a handheld device, you should always aggregate similar
 notifications into a single summary notification. For example, if your app creates notifications
@@ -29,20 +29,44 @@ Wear</a>.</p>
 
 <p>To create a stack, call <a
 href="{@docRoot}reference/android/preview/support/wearable/notifications/WearableNotifications.Builder.html#setGroup(java.lang.String, int)">
-<code>setGroup()</code></a> for each notification you want in the stack, passing the same
-group key. For example:</p>
+<code>setGroup()</code></a> for each notification you want in the stack and specify a
+group key. Then call <a href="{@docRoot}reference/android/preview/support/v4/app/NotificationManagerCompat.html#notify(int, android.app.Notification)"><code>notify()</code></a> to send it to the wearable.</p>
 
 <pre style="clear:right">
 final static String GROUP_KEY_EMAILS = "group_key_emails";
 
+// Build the notification and pass this builder to WearableNotifications.Builder
 NotificationCompat.Builder builder = new NotificationCompat.Builder(mContext)
-         .setContentTitle("New mail from " + sender)
-         .setContentText(subject)
+         .setContentTitle("New mail from " + sender1)
+         .setContentText(subject1)
          .setSmallIcon(R.drawable.new_mail);
 
-Notification notif = new WearableNotifications.Builder(builder)
+Notification notif1 = new WearableNotifications.Builder(builder)
          .setGroup(GROUP_KEY_EMAILS)
          .build();
+
+// Issue the notification
+NotificationManagerCompat notificationManager =
+        NotificationManagerCompat.from(this);
+notificationManager.notify(notificationId1, notif);
+</pre>
+
+<p>Later on, when you create another notification, specify
+the same group key. When you call <a href="{@docRoot}reference/android/preview/support/v4/app/NotificationManagerCompat.html#notify(int, android.app.Notification)"><code>notify()</code></a>, this notification appears
+in the same stack as the previous notification, instead of as a new card:</p>
+
+<pre style="clear:right">
+builder = new NotificationCompat.Builder(mContext)
+         .setContentTitle("New mail from " + sender2)
+         .setContentText(subject2)
+         .setSmallIcon(R.drawable.new_mail);
+
+// Use the same group as the previous notification
+Notification notif2 = new WearableNotifications.Builder(builder)
+         .setGroup(GROUP_KEY_EMAILS)
+         .build();
+
+notificationManager.notify(notificationId2, notif);
 </pre>
 
 <p>By default, notifications appear in the order in which you added them, with the most recent
@@ -54,19 +78,55 @@ href="{@docRoot}reference/android/preview/support/wearable/notifications/Wearabl
 
 <h2 id="AddSummary">Add a Summary Notification</h2>
 
+<img src="{@docRoot}wear/images/notif_summary_framed.png" height="242" width="330" style="float:right;margin:0 0 20px 40px" alt="" />
+
 <p>It's important that you still provide a summary notification that appears on handheld devices.
 So in addition to adding each unique notification to the same stack group, also add a summary
 notification, but set its order position to be <a
 href="{@docRoot}reference/android/preview/support/wearable/notifications/WearableNotifications.html#GROUP_ORDER_SUMMARY"><code>GROUP_ORDER_SUMMARY</code></a>.</p>
 
-<pre>
-Notification summaryNotification = new WearableNotifications.Builder(builder)
-         .setGroup(GROUP_KEY_EMAILS, WearableNotifications.GROUP_ORDER_SUMMARY)
-         .build();
-</pre>
+<p>This notification does not appear in your stack of notifications on the wearable, but
+appears as the only notification on the handheld device.</p>
 
-<p>This notification will not appear in your stack of notifications on the wearable, but
-appears as the only notification on the handheld device.
+<pre style="clear:right">
+Bitmap largeIcon = BitmapFactory.decodeResource(getResources(),
+        R.drawable.ic_large_icon);
+
+builder = new NotificationCompat.Builder(this)
+        .setSmallIcon(R.drawable.ic_small_icon)
+        .setLargeIcon(largeIcon);
+
+// Use the same group key and pass this builder to InboxStyle notification
+WearableNotifications.Builder wearableBuilder = new WearableNotifications
+        .Builder(builder)
+        .setGroup(GROUP_KEY_EMAILS,
+                WearableNotifications.GROUP_ORDER_SUMMARY);
+
+// Build the final notification to show on the handset
+Notification summaryNotification = new NotificationCompat.InboxStyle(
+        wearableBuilder.getCompatBuilder())
+        .addLine("Alex Faaborg   Check this out")
+        .addLine("Jeff Chang   Launch Party")
+        .setBigContentTitle("2 new messages")
+        .setSummaryText("johndoe@gmail.com")
+        .build();
+
+notificationManager.notify(notificationId3, summaryNotification);
+</pre>
 
+<p>
+This notification uses {@link android.support.v4.app.NotificationCompat.InboxStyle},
+which gives you an easy way to create notifications for email or messaging apps.
+You can use this style, another one defined in {@link android.support.v4.app.NotificationCompat},
+or no style for the summary notification.
+</p>
+
+<p class="note"><b>Tip:</b>
+To style the text like in the example screenshot, see
+<a href="{@docRoot}guide/topics/resources/string-resource.html#StylingWithHTML">Styling
+with HTML markup</a> and
+<a href="{@docRoot}guide/topics/resources/string-resource.html#StylingWithSpannables">Styling
+with Spannables</a>.
+</p>
 </body>
-</html>
+</html>
\ No newline at end of file