我想从我自己的应用程序在stock android浏览器中创建一个书签。我怎么能这样做?
我只找到Browser.saveBookmark
- 方法(api-doc),但这会显示一个新窗口,用户可以在其中更改数据。由于我想从外部数据源导入书签,我想直接保存书签而不是要求用户输入。
答案 0 :(得分:4)
如果您只是想让用户添加书签,android.provider.Browser。saveBookmark()就是您想要的。但看起来你想要进行大规模更新,所以这可能还不够,因为它只是打开了浏览器的书签页面。
AFAIK没有开放的API直接与浏览器的书签联系在一起。但是,有一个内容解析器,可以访问android.provider.Browser.BOOKMARKS_URI。解决了提供程序后,只要拥有com.android.browser.permission.READ_HISTORY_BOOKMARKS和com.android.browser.permission.WRITE_HISTORY_BOOKMARKS权限,就可以通过运行查询来操作书签。
如果您对内容提供商不熟悉,他们可能会变得有点毛茸茸(如果您不熟悉SQL,那就更是如此)。但是,the knowledge base上有一些很好的文章,快速谷歌的“Android内容提供商教程”应该可以帮助你顺利完成。
答案 1 :(得分:3)
我从Android实现中获取了以下代码(并禁用了“添加了书签”吐司):
/**
* Add a bookmark to the database.
*
* @param context
* Context of the calling Activity. This is used to make Toast confirming that the bookmark has been added. If the caller provides null, the Toast will not be shown.
* @param cr
* The ContentResolver being used to add the bookmark to the db.
* @param url
* URL of the website to be bookmarked.
* @param name
* Provided name for the bookmark.
* @param thumbnail
* A thumbnail for the bookmark.
* @param retainIcon
* Whether to retain the page's icon in the icon database. This will usually be <code>true</code> except when bookmarks are added by a settings restore agent.
*/
static void addBookmark(Context context, ContentResolver cr, String url, String name, Bitmap thumbnail, boolean retainIcon) {
final String WHERE_CLAUSE = "url = ? OR url = ? OR url = ? OR url = ?";
final String WHERE_CLAUSE_SECURE = "url = ? OR url = ?";
String[] SELECTION_ARGS;
// Want to append to the beginning of the list
long creationTime = new Date().getTime();
// First we check to see if the user has already visited this
// site. They may have bookmarked it in a different way from
// how it's stored in the database, so allow different combos
// to map to the same url.
boolean secure = false;
String compareString = url;
if (compareString.startsWith("http://")) {
compareString = compareString.substring(7);
} else if (compareString.startsWith("https://")) {
compareString = compareString.substring(8);
secure = true;
}
if (compareString.startsWith("www.")) {
compareString = compareString.substring(4);
}
if (secure) {
SELECTION_ARGS = new String[2];
SELECTION_ARGS[0] = "https://" + compareString;
SELECTION_ARGS[1] = "https://www." + compareString;
} else {
SELECTION_ARGS = new String[4];
SELECTION_ARGS[0] = compareString;
SELECTION_ARGS[1] = "www." + compareString;
SELECTION_ARGS[2] = "http://" + compareString;
SELECTION_ARGS[3] = "http://" + SELECTION_ARGS[1];
}
Cursor cursor = cr.query(Browser.BOOKMARKS_URI, Browser.HISTORY_PROJECTION, secure ? WHERE_CLAUSE_SECURE : WHERE_CLAUSE, SELECTION_ARGS, null);
ContentValues map = new ContentValues();
if (cursor.moveToFirst() && cursor.getInt(Browser.HISTORY_PROJECTION_BOOKMARK_INDEX) == 0) {
// This means we have been to this site but not bookmarked
// it, so convert the history item to a bookmark
map.put(Browser.BookmarkColumns.CREATED, creationTime);
map.put(Browser.BookmarkColumns.TITLE, name);
map.put(Browser.BookmarkColumns.BOOKMARK, 1);
// map.put(Browser.BookmarkColumns.THUMBNAIL, bitmapToBytes(thumbnail));
cr.update(Browser.BOOKMARKS_URI, map, "_id = " + cursor.getInt(0), null);
} else {
int count = cursor.getCount();
boolean matchedTitle = false;
for (int i = 0; i < count; i++) {
// One or more bookmarks already exist for this site.
// Check the names of each
cursor.moveToPosition(i);
if (cursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX).equals(name)) {
// The old bookmark has the same name.
// Update its creation time.
map.put(Browser.BookmarkColumns.CREATED, creationTime);
cr.update(Browser.BOOKMARKS_URI, map, "_id = " + cursor.getInt(0), null);
matchedTitle = true;
break;
}
}
if (!matchedTitle) {
// Adding a bookmark for a site the user has visited,
// or a new bookmark (with a different name) for a site
// the user has visited
map.put(Browser.BookmarkColumns.TITLE, name);
map.put(Browser.BookmarkColumns.URL, url);
map.put(Browser.BookmarkColumns.CREATED, creationTime);
map.put(Browser.BookmarkColumns.BOOKMARK, 1);
map.put(Browser.BookmarkColumns.DATE, 0);
// map.put(Browser.BookmarkColumns.THUMBNAIL, bitmapToBytes(thumbnail));
int visits = 0;
if (count > 0) {
// The user has already bookmarked, and possibly
// visited this site. However, they are creating
// a new bookmark with the same url but a different
// name. The new bookmark should have the same
// number of visits as the already created bookmark.
visits = cursor.getInt(Browser.HISTORY_PROJECTION_VISITS_INDEX);
}
// Bookmark starts with 3 extra visits so that it will
// bubble up in the most visited and goto search box
map.put(Browser.BookmarkColumns.VISITS, visits + 3);
cr.insert(Browser.BOOKMARKS_URI, map);
}
}
if (retainIcon) {
WebIconDatabase.getInstance().retainIconForPageUrl(url);
}
cursor.close();
}