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authorMike LeBeau <mlebeau@android.com>2009-08-11 18:11:28 -0700
committerAndroid Git Automerger <android-git-automerger@android.com>2009-08-11 18:11:28 -0700
commit6f82aa3f4d0731dbf03eee56a155b7387eed75e9 (patch)
treeb99b4cb90da55c25b720884e05eb723eda450e8f /core
parent8e235b7bac7c94a43fa67c7640b17ad43d6a4774 (diff)
parent021fa3fa6fe88c33ad11a3139ebcd3a5be8eb953 (diff)
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am 021fa3fa: Merge change 20665 into donut
Merge commit '021fa3fa6fe88c33ad11a3139ebcd3a5be8eb953' * commit '021fa3fa6fe88c33ad11a3139ebcd3a5be8eb953': First update of SearchManager docs to reflect the new Donut Quick Search Box feature.
Diffstat (limited to 'core')
-rw-r--r--core/java/android/app/SearchManager.java143
1 files changed, 56 insertions, 87 deletions
diff --git a/core/java/android/app/SearchManager.java b/core/java/android/app/SearchManager.java
index fd559d6..7ad6423 100644
--- a/core/java/android/app/SearchManager.java
+++ b/core/java/android/app/SearchManager.java
@@ -40,7 +40,7 @@ import java.util.List;
* methods and the the {@link android.content.Intent#ACTION_SEARCH ACTION_SEARCH}
* {@link android.content.Intent Intent}. This class does provide a basic
* overview of search services and how to integrate them with your activities.
- * If you do require direct access to the Search Manager, do not instantiate
+ * If you do require direct access to the SearchManager, do not instantiate
* this class directly; instead, retrieve it through
* {@link android.content.Context#getSystemService
* context.getSystemService(Context.SEARCH_SERVICE)}.
@@ -49,9 +49,10 @@ import java.util.List;
* <ol>
* <li><a href="#DeveloperGuide">Developer Guide</a>
* <li><a href="#HowSearchIsInvoked">How Search Is Invoked</a>
- * <li><a href="#QuerySearchApplications">Query-Search Applications</a>
- * <li><a href="#FilterSearchApplications">Filter-Search Applications</a>
+ * <li><a href="#ImplementingSearchForYourApp">Implementing Search for Your App</a>
* <li><a href="#Suggestions">Search Suggestions</a>
+ * <li><a href="#ExposingSearchSuggestionsToQuickSearchBox">Exposing Search Suggestions to
+ * Quick Search Box</a></li>
* <li><a href="#ActionKeys">Action Keys</a>
* <li><a href="#SearchabilityMetadata">Searchability Metadata</a>
* <li><a href="#PassingSearchContext">Passing Search Context</a>
@@ -62,37 +63,18 @@ import java.util.List;
* <h3>Developer Guide</h3>
*
* <p>The ability to search for user, system, or network based data is considered to be
- * a core user-level feature of the android platform. At any time, the user should be
+ * a core user-level feature of the Android platform. At any time, the user should be
* able to use a familiar command, button, or keystroke to invoke search, and the user
- * should be able to search any data which is available to them. The goal is to make search
- * appear to the user as a seamless, system-wide feature.
+ * should be able to search any data which is available to them.
*
- * <p>In terms of implementation, there are three broad classes of Applications:
- * <ol>
- * <li>Applications that are not inherently searchable</li>
- * <li>Query-Search Applications</li>
- * <li>Filter-Search Applications</li>
- * </ol>
- * <p>These categories, as well as related topics, are discussed in
- * the sections below.
+ * <p>To make search appear to the user as a seamless system-wide feature, the application
+ * framework centrally controls it, offering APIs to individual applications to control how they
+ * are searched. Applications can customize how search is invoked, how the search dialog looks,
+ * and what type of search results are available, including suggestions that are available as the
+ * user types.
*
- * <p>Even if your application is not <i>searchable</i>, it can still support the invocation of
- * search. Please review the section <a href="#HowSearchIsInvoked">How Search Is Invoked</a>
- * for more information on how to support this.
- *
- * <p>Many applications are <i>searchable</i>. These are
- * the applications which can convert a query string into a list of results.
- * Within this subset, applications can be grouped loosely into two families:
- * <ul><li><i>Query Search</i> applications perform batch-mode searches - each query string is
- * converted to a list of results.</li>
- * <li><i>Filter Search</i> applications provide live filter-as-you-type searches.</li></ul>
- * <p>Generally speaking, you would use query search for network-based data, and filter
- * search for local data, but this is not a hard requirement and applications
- * are free to use the model that fits them best (or invent a new model).
- * <p>It should be clear that the search implementation decouples "search
- * invocation" from "searchable". This satisfies the goal of making search appear
- * to be "universal". The user should be able to launch any search from
- * almost any context.
+ * <p>Even applications which are not searchable will by default support the invocation of
+ * search to trigger Quick Search Box, the system's 'global search'.
*
* <a name="HowSearchIsInvoked"></a>
* <h3>How Search Is Invoked</h3>
@@ -100,14 +82,15 @@ import java.util.List;
* <p>Unless impossible or inapplicable, all applications should support
* invoking the search UI. This means that when the user invokes the search command,
* a search UI will be presented to them. The search command is currently defined as a menu
- * item called "Search" (with an alphabetic shortcut key of "S"), or on some devices, a dedicated
+ * item called "Search" (with an alphabetic shortcut key of "S"), or on many devices, a dedicated
* search button key.
- * <p>If your application is not inherently searchable, you can also allow the search UI
- * to be invoked in a "web search" mode. If the user enters a search term and clicks the
- * "Search" button, this will bring the browser to the front and will launch a web-based
+ * <p>If your application is not inherently searchable, the default implementation will cause
+ * the search UI to be invoked in a "global search" mode known as Quick Search Box. As the user
+ * types, search suggestions from across the device and the web will be surfaced, and if they
+ * click the "Search" button, this will bring the browser to the front and will launch a web-based
* search. The user will be able to click the "Back" button and return to your application.
* <p>In general this is implemented by your activity, or the {@link android.app.Activity Activity}
- * base class, which captures the search command and invokes the Search Manager to
+ * base class, which captures the search command and invokes the SearchManager to
* display and operate the search UI. You can also cause the search UI to be presented in response
* to user keystrokes in your activity (for example, to instantly start filter searching while
* viewing a list and typing any key).
@@ -124,7 +107,7 @@ import java.util.List;
* button or menu item - and invoking the search UI directly.</li>
* <li>You can provide a <i>type-to-search</i> feature, in which search is invoked automatically
* when the user enters any characters.</li>
- * <li>Even if your application is not inherently searchable, you can allow web search,
+ * <li>Even if your application is not inherently searchable, you can allow global search,
* via the search key (or even via a search menu item).
* <li>You can disable search entirely. This should only be used in very rare circumstances,
* as search is a system-wide feature and users will expect it to be available in all contexts.</li>
@@ -148,21 +131,23 @@ import java.util.List;
* setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL); // search within your activity
* setDefaultKeyMode(DEFAULT_KEYS_SEARCH_GLOBAL); // search using platform global search</pre>
*
- * <p><b>How to enable web-based search.</b> In addition to searching within your activity or
- * application, you can also use the Search Manager to invoke a platform-global search, typically
- * a web search. There are two ways to do this:
+ * <p><b>How to enable global search with Quick Search Box.</b> In addition to searching within
+ * your activity or application, you can also use the Search Manager to invoke a platform-global
+ * search, which uses Quick Search Box to search across the device and the web. There are two ways
+ * to do this:
* <ul><li>You can simply define "search" within your application or activity to mean global search.
* This is described in more detail in the
* <a href="#SearchabilityMetadata">Searchability Metadata</a> section. Briefly, you will
* add a single meta-data entry to your manifest, declaring that the default search
* for your application is "*". This indicates to the system that no application-specific
* search activity is provided, and that it should launch web-based search instead.</li>
- * <li>You can specify this at invocation time via default keys (see above), overriding
- * {@link android.app.Activity#onSearchRequested}, or via a direct call to
- * {@link android.app.Activity#startSearch}. This is most useful if you wish to provide local
- * searchability <i>and</i> access to global search.</li></ul>
+ * <li>Simply do nothing and the default implementation of
+ * {@link android.app.Activity#onSearchRequested} will cause global search to be triggered.
+ * (You can also always trigger search via a direct call to {@link android.app.Activity#startSearch}.
+ * This is most useful if you wish to provide local searchability <i>and</i> access to global
+ * search.)</li></ul>
*
- * <p><b>How to disable search from your activity.</b> search is a system-wide feature and users
+ * <p><b>How to disable search from your activity.</b> Search is a system-wide feature and users
* will expect it to be available in all contexts. If your UI design absolutely precludes
* launching search, override {@link android.app.Activity#onSearchRequested onSearchRequested}
* as shown:
@@ -172,7 +157,7 @@ import java.util.List;
* return false;
* }</pre>
*
- * <p><b>Managing focus and knowing if Search is active.</b> The search UI is not a separate
+ * <p><b>Managing focus and knowing if search is active.</b> The search UI is not a separate
* activity, and when the UI is invoked or dismissed, your activity will not typically be paused,
* resumed, or otherwise notified by the methods defined in
* <a href="{@docRoot}guide/topics/fundamentals.html#actlife">Application Fundamentals:
@@ -194,17 +179,10 @@ import java.util.List;
* the search UI. More details on searchable activities and search intents are provided in the
* sections below.
*
- * <a name="QuerySearchApplications"></a>
- * <h3>Query-Search Applications</h3>
- *
- * <p>Query-search applications are those that take a single query (e.g. a search
- * string) and present a set of results that may fit. Primary examples include
- * web queries, map lookups, or email searches (with the common thread being
- * network query dispatch). It may also be the case that certain local searches
- * are treated this way. It's up to the application to decide.
+ * <a name="ImplementingSearchForYourApp"></a>
+ * <h3>Implementing Search for Your App</h3>
*
- * <p><b>What you need to do:</b> The following steps are necessary in order to
- * implement query search.
+ * <p>The following steps are necessary in order to implement search.
* <ul>
* <li>Implement search invocation as described above. (Strictly speaking,
* these are decoupled, but it would make little sense to be "searchable" but not
@@ -220,16 +198,16 @@ import java.util.List;
* {@link #QUERY getStringExtra(SearchManager.QUERY)}.</li>
* <li>To identify and support your searchable activity, you'll need to
* provide an XML file providing searchability configuration parameters, a reference to that
- * in your searchable activity's <a href="{@docRoot}guide/topics/manifest/manifest-intro.html">manifest</a>
- * entry, and an intent-filter declaring that you can
- * receive ACTION_SEARCH intents. This is described in more detail in the
- * <a href="#SearchabilityMetadata">Searchability Metadata</a> section.</li>
- * <li>Your <a href="{@docRoot}guide/topics/manifest/manifest-intro.html">manifest</a> also needs a metadata entry
- * providing a global reference to the searchable activity. This is the "glue" directing the search
- * UI, when invoked from any of your <i>other</i> activities, to use your application as the
- * default search context. This is also described in more detail in the
+ * in your searchable activity's
+ * <a href="{@docRoot}guide/topics/manifest/manifest-intro.html">manifest</a> entry, and an
+ * intent-filter declaring that you can receive ACTION_SEARCH intents. This is described in more
+ * detail in the <a href="#SearchabilityMetadata">Searchability Metadata</a> section.</li>
+ * <li>Your <a href="{@docRoot}guide/topics/manifest/manifest-intro.html">manifest</a> also needs a
+ * metadata entry providing a global reference to the searchable activity. This is the "glue"
+ * directing the search UI, when invoked from any of your <i>other</i> activities, to use your
+ * application as the default search context. This is also described in more detail in the
* <a href="#SearchabilityMetadata">Searchability Metadata</a> section.</li>
- * <li>Finally, you may want to define your search results activity as with the
+ * <li>Finally, you may want to define your search results activity as single-top with the
* {@link android.R.attr#launchMode singleTop} launchMode flag. This allows the system
* to launch searches from/to the same activity without creating a pile of them on the
* activity stack. If you do this, be sure to also override
@@ -255,25 +233,10 @@ import java.util.List;
* doSearchWithQuery(queryString);
* }</pre>
*
- * <a name="FilterSearchApplications"></a>
- * <h3>Filter-Search Applications</h3>
- *
- * <p>Filter-search applications are those that use live text entry (e.g. keystrokes)) to
- * display and continuously update a list of results. Primary examples include applications
- * that use locally-stored data.
- *
- * <p>Filter search is not directly supported by the Search Manager. Most filter search
- * implementations will use variants of {@link android.widget.Filterable}, such as a
- * {@link android.widget.ListView} bound to a {@link android.widget.SimpleCursorAdapter}. However,
- * you may find it useful to mix them together, by declaring your filtered view searchable. With
- * this configuration, you can still present the standard search dialog in all activities
- * within your application, but transition to a filtered search when you enter the activity
- * and display the results.
- *
* <a name="Suggestions"></a>
* <h3>Search Suggestions</h3>
*
- * <p>A powerful feature of the Search Manager is the ability of any application to easily provide
+ * <p>A powerful feature of the search system is the ability of any application to easily provide
* live "suggestions" in order to prompt the user. Each application implements suggestions in a
* different, unique, and appropriate way. Suggestions be drawn from many sources, including but
* not limited to:
@@ -285,11 +248,11 @@ import java.util.List;
* <li>Summaries of possible results</li>
* </ul>
*
- * <p>Another feature of suggestions is that they can expose queries or results before the user
- * ever visits the application. This reduces the amount of context switching required, and helps
- * the user access their data quickly and with less context shifting. In order to provide this
- * capability, suggestions are accessed via a
- * {@link android.content.ContentProvider Content Provider}.
+ * <p>Once an application is configured to provide search suggestions, those same suggestions can
+ * easily be made available to the system-wide Quick Search Box, providing faster access to its
+ * content from on central prominent place. See
+ * <a href="#ExposingSearchSuggestionsToQuickSearchBox">Exposing Search Suggestions to Quick Search
+ * Box</a> for more details.
*
* <p>The primary form of suggestions is known as <i>queried suggestions</i> and is based on query
* text that the user has already typed. This would generally be based on partial matches in
@@ -299,7 +262,8 @@ import java.util.List;
* available, they should be weighted based on other factors - for example, most recent queries
* or most recent results.
*
- * <p><b>Overview of how suggestions are provided.</b> When the search manager identifies a
+ * <p><b>Overview of how suggestions are provided.</b> Suggestions are accessed via a
+ * {@link android.content.ContentProvider Content Provider}. When the search manager identifies a
* particular activity as searchable, it will check for certain metadata which indicates that
* there is also a source of suggestions. If suggestions are provided, the following steps are
* taken.
@@ -569,6 +533,11 @@ import java.util.List;
* query text is provided and the SUGGEST_COLUMN_INTENT_DATA values are not suitable for user
* inspection and editing.</li></ul>
*
+ * <a name="ExposingSearchSuggestionsToQuickSearchBox"></a>
+ * <h3>Exposing Search Suggestions to Quick Search Box</h3>
+ *
+ * <p>
+ *
* <a name="ActionKeys"></a>
* <h3>Action Keys</h3>
*