下面列出了怎么用android.provider.Browser.BookmarkColumns的API类实例代码及写法，或者点击链接到github查看源代码。
private long addBookmark(ContentValues values) {
String url = values.getAsString(Browser.BookmarkColumns.URL);
String title = values.getAsString(Browser.BookmarkColumns.TITLE);
boolean isFolder = false;
if (values.containsKey(BOOKMARK_IS_FOLDER_PARAM)) {
isFolder = values.getAsBoolean(BOOKMARK_IS_FOLDER_PARAM);
}
long parentId = INVALID_BOOKMARK_ID;
if (values.containsKey(BOOKMARK_PARENT_ID_PARAM)) {
parentId = values.getAsLong(BOOKMARK_PARENT_ID_PARAM);
}
long id = nativeAddBookmark(mNativeChromeBrowserProvider, url, title, isFolder, parentId);
if (id == INVALID_BOOKMARK_ID) return id;
if (isFolder) {
updateLastModifiedBookmarkFolder(id);
} else {
updateLastModifiedBookmarkFolder(parentId);
}
return id;
}
private long addBookmark(ContentValues values) {
String url = values.getAsString(Browser.BookmarkColumns.URL);
String title = values.getAsString(Browser.BookmarkColumns.TITLE);
boolean isFolder = false;
if (values.containsKey(BOOKMARK_IS_FOLDER_PARAM)) {
isFolder = values.getAsBoolean(BOOKMARK_IS_FOLDER_PARAM);
}
long parentId = INVALID_BOOKMARK_ID;
if (values.containsKey(BOOKMARK_PARENT_ID_PARAM)) {
parentId = values.getAsLong(BOOKMARK_PARENT_ID_PARAM);
}
long id = nativeAddBookmark(mNativeChromeBrowserProvider, url, title, isFolder, parentId);
if (id == INVALID_BOOKMARK_ID) return id;
if (isFolder) {
updateLastModifiedBookmarkFolder(id);
} else {
updateLastModifiedBookmarkFolder(parentId);
}
return id;
}
@Override
public String getString(int column) {
switch (column) {
case COLUMN_ID:
return mCursor.getString(mCursor.getColumnIndex(BookmarkColumns._ID));
case COLUMN_SUGGEST_INTENT_ACTION:
return Intent.ACTION_VIEW;
case COLUMN_SUGGEST_INTENT_DATA:
return mCursor.getString(mCursor.getColumnIndex(BookmarkColumns.URL));
case COLUMN_SUGGEST_TEXT_1:
return mCursor.getString(mCursor.getColumnIndex(BookmarkColumns.TITLE));
case COLUMN_SUGGEST_TEXT_2:
case COLUMN_SUGGEST_TEXT_2_URL:
return mCursor.getString(mCursor.getColumnIndex(BookmarkColumns.URL));
case COLUMN_SUGGEST_ICON_1:
// This is the icon displayed to the left of the result in QSB.
return Integer.toString(R.mipmap.app_icon);
case COLUMN_SUGGEST_LAST_ACCESS_HINT:
// After clearing history, the Chrome bookmarks database will have a last
// access time of 0 for all bookmarks. In the Android provider, this will
// yield a negative last access time. A negative last access time will
// cause global search to discard the result, so fix it up before
// we return it.
long lastAccess = mCursor.getLong(
mCursor.getColumnIndex(BookmarkColumns.DATE));
return lastAccess < 0 ? "0" : "" + lastAccess;
default:
throw new UnsupportedOperationException();
}
}
@Override
public long getLong(int c) {
switch (c) {
case 7:
// See comments above in getString() re. negative last access times.
long lastAccess = mCursor.getLong(
mCursor.getColumnIndex(BookmarkColumns.DATE));
return lastAccess < 0 ? 0 : lastAccess;
default:
throw new UnsupportedOperationException();
}
}
@Override
public Uri insert(Uri uri, ContentValues values) {
if (!canHandleContentProviderApiCall()) return null;
int match = mUriMatcher.match(uri);
Uri res = null;
long id;
switch (match) {
case URI_MATCH_BOOKMARKS:
id = addBookmark(values);
if (id == INVALID_BOOKMARK_ID) return null;
break;
case URL_MATCH_API_BOOKMARK_CONTENT:
values.put(BookmarkColumns.BOOKMARK, 1);
//$FALL-THROUGH$
case URL_MATCH_API_BOOKMARK:
case URL_MATCH_API_HISTORY_CONTENT:
id = addBookmarkFromAPI(values);
if (id == INVALID_CONTENT_PROVIDER_ID) return null;
break;
case URL_MATCH_API_SEARCHES:
id = addSearchTermFromAPI(values);
if (id == INVALID_CONTENT_PROVIDER_ID) return null;
break;
default:
throw new IllegalArgumentException(TAG + ": insert - unknown URL " + uri);
}
res = ContentUris.withAppendedId(uri, id);
getContext().getContentResolver().notifyChange(res, null);
return res;
}
/**
* @return a SQL where class which is inserted the bookmark condition.
*/
private static String buildBookmarkWhereClause(String selection, boolean is_bookmark) {
StringBuffer sb = new StringBuffer();
sb.append(BookmarkColumns.BOOKMARK);
sb.append(is_bookmark ? " = 1 " : " = 0");
if (!TextUtils.isEmpty(selection)) {
sb.append(" AND (");
sb.append(selection);
sb.append(")");
}
return sb.toString();
}
static BookmarkRow fromContentValues(ContentValues values) {
BookmarkRow row = new BookmarkRow();
if (values.containsKey(BookmarkColumns.URL)) {
row.url = values.getAsString(BookmarkColumns.URL);
}
if (values.containsKey(BookmarkColumns.BOOKMARK)) {
row.isBookmark = values.getAsInteger(BookmarkColumns.BOOKMARK) != 0;
}
if (values.containsKey(BookmarkColumns.CREATED)) {
row.created = values.getAsLong(BookmarkColumns.CREATED);
}
if (values.containsKey(BookmarkColumns.DATE)) {
row.date = values.getAsLong(BookmarkColumns.DATE);
}
if (values.containsKey(BookmarkColumns.FAVICON)) {
row.favicon = values.getAsByteArray(BookmarkColumns.FAVICON);
// We need to know that the caller set the favicon column.
if (row.favicon == null) {
row.favicon = new byte[0];
}
}
if (values.containsKey(BookmarkColumns.TITLE)) {
row.title = values.getAsString(BookmarkColumns.TITLE);
}
if (values.containsKey(BookmarkColumns.VISITS)) {
row.visits = values.getAsInteger(BookmarkColumns.VISITS);
}
if (values.containsKey(BOOKMARK_PARENT_ID_PARAM)) {
row.parentId = values.getAsLong(BOOKMARK_PARENT_ID_PARAM);
}
return row;
}
@Override
public String getString(int column) {
switch (column) {
case COLUMN_ID:
return mCursor.getString(mCursor.getColumnIndex(BookmarkColumns._ID));
case COLUMN_SUGGEST_INTENT_ACTION:
return Intent.ACTION_VIEW;
case COLUMN_SUGGEST_INTENT_DATA:
return mCursor.getString(mCursor.getColumnIndex(BookmarkColumns.URL));
case COLUMN_SUGGEST_TEXT_1:
return mCursor.getString(mCursor.getColumnIndex(BookmarkColumns.TITLE));
case COLUMN_SUGGEST_TEXT_2:
case COLUMN_SUGGEST_TEXT_2_URL:
return mCursor.getString(mCursor.getColumnIndex(BookmarkColumns.URL));
case COLUMN_SUGGEST_ICON_1:
// This is the icon displayed to the left of the result in QSB.
return Integer.toString(R.mipmap.app_icon);
case COLUMN_SUGGEST_LAST_ACCESS_HINT:
// After clearing history, the Chrome bookmarks database will have a last
// access time of 0 for all bookmarks. In the Android provider, this will
// yield a negative last access time. A negative last access time will
// cause global search to discard the result, so fix it up before
// we return it.
long lastAccess = mCursor.getLong(
mCursor.getColumnIndex(BookmarkColumns.DATE));
return lastAccess < 0 ? "0" : "" + lastAccess;
default:
throw new UnsupportedOperationException();
}
}
@Override
public long getLong(int c) {
switch (c) {
case 7:
// See comments above in getString() re. negative last access times.
long lastAccess = mCursor.getLong(
mCursor.getColumnIndex(BookmarkColumns.DATE));
return lastAccess < 0 ? 0 : lastAccess;
default:
throw new UnsupportedOperationException();
}
}
@Override
public Uri insert(Uri uri, ContentValues values) {
if (!canHandleContentProviderApiCall()) return null;
int match = mUriMatcher.match(uri);
Uri res = null;
long id;
switch (match) {
case URI_MATCH_BOOKMARKS:
id = addBookmark(values);
if (id == INVALID_BOOKMARK_ID) return null;
break;
case URL_MATCH_API_BOOKMARK_CONTENT:
values.put(BookmarkColumns.BOOKMARK, 1);
//$FALL-THROUGH$
case URL_MATCH_API_BOOKMARK:
case URL_MATCH_API_HISTORY_CONTENT:
id = addBookmarkFromAPI(values);
if (id == INVALID_CONTENT_PROVIDER_ID) return null;
break;
case URL_MATCH_API_SEARCHES:
id = addSearchTermFromAPI(values);
if (id == INVALID_CONTENT_PROVIDER_ID) return null;
break;
default:
throw new IllegalArgumentException(TAG + ": insert - unknown URL " + uri);
}
res = ContentUris.withAppendedId(uri, id);
getContext().getContentResolver().notifyChange(res, null);
return res;
}
/**
* @return a SQL where class which is inserted the bookmark condition.
*/
private static String buildBookmarkWhereClause(String selection, boolean is_bookmark) {
StringBuffer sb = new StringBuffer();
sb.append(BookmarkColumns.BOOKMARK);
sb.append(is_bookmark ? " = 1 " : " = 0");
if (!TextUtils.isEmpty(selection)) {
sb.append(" AND (");
sb.append(selection);
sb.append(")");
}
return sb.toString();
}
static BookmarkRow fromContentValues(ContentValues values) {
BookmarkRow row = new BookmarkRow();
if (values.containsKey(BookmarkColumns.URL)) {
row.url = values.getAsString(BookmarkColumns.URL);
}
if (values.containsKey(BookmarkColumns.BOOKMARK)) {
row.isBookmark = values.getAsInteger(BookmarkColumns.BOOKMARK) != 0;
}
if (values.containsKey(BookmarkColumns.CREATED)) {
row.created = values.getAsLong(BookmarkColumns.CREATED);
}
if (values.containsKey(BookmarkColumns.DATE)) {
row.date = values.getAsLong(BookmarkColumns.DATE);
}
if (values.containsKey(BookmarkColumns.FAVICON)) {
row.favicon = values.getAsByteArray(BookmarkColumns.FAVICON);
// We need to know that the caller set the favicon column.
if (row.favicon == null) {
row.favicon = new byte[0];
}
}
if (values.containsKey(BookmarkColumns.TITLE)) {
row.title = values.getAsString(BookmarkColumns.TITLE);
}
if (values.containsKey(BookmarkColumns.VISITS)) {
row.visits = values.getAsInteger(BookmarkColumns.VISITS);
}
if (values.containsKey(BOOKMARK_PARENT_ID_PARAM)) {
row.parentId = values.getAsLong(BOOKMARK_PARENT_ID_PARAM);
}
return row;
}
@Override
public int delete(Uri url, String where, String[] whereArgs) {
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
int match = URI_MATCHER.match(url);
if (match == -1 || match == URI_MATCH_SUGGEST) {
throw new IllegalArgumentException("Unknown URL");
}
// need to know whether it's the bookmarks table for a couple of reasons
boolean isBookmarkTable = (match == URI_MATCH_BOOKMARKS_ID);
String id = null;
if (isBookmarkTable || match == URI_MATCH_SEARCHES_ID) {
StringBuilder sb = new StringBuilder();
if (where != null && where.length() > 0) {
sb.append("( ");
sb.append(where);
sb.append(" ) AND ");
}
id = url.getPathSegments().get(1);
sb.append("_id = ");
sb.append(id);
where = sb.toString();
}
ContentResolver cr = getContext().getContentResolver();
// we'lll need to back up the bookmark set if we are about to delete one
if (isBookmarkTable) {
Cursor cursor = cr.query(Browser.BOOKMARKS_URI,
new String[] { BookmarkColumns.BOOKMARK },
"_id = " + id, null, null);
if (cursor.moveToNext()) {
if (cursor.getInt(0) != 0) {
// yep, this record is a bookmark
mBackupManager.dataChanged();
}
}
cursor.close();
}
int count = db.delete(TABLE_NAMES[match % 10], where, whereArgs);
cr.notifyChange(url, null);
return count;
}
@Override
public int update(Uri url, ContentValues values, String where,
String[] whereArgs) {
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
int match = URI_MATCHER.match(url);
if (match == -1 || match == URI_MATCH_SUGGEST) {
throw new IllegalArgumentException("Unknown URL");
}
if (match == URI_MATCH_BOOKMARKS_ID || match == URI_MATCH_SEARCHES_ID) {
StringBuilder sb = new StringBuilder();
if (where != null && where.length() > 0) {
sb.append("( ");
sb.append(where);
sb.append(" ) AND ");
}
String id = url.getPathSegments().get(1);
sb.append("_id = ");
sb.append(id);
where = sb.toString();
}
ContentResolver cr = getContext().getContentResolver();
// Not all bookmark-table updates should be backed up. Look to see
// whether we changed the title, url, or "is a bookmark" state, and
// request a backup if so.
if (match == URI_MATCH_BOOKMARKS_ID || match == URI_MATCH_BOOKMARKS) {
boolean changingBookmarks = false;
// Alterations to the bookmark field inherently change the bookmark
// set, so we don't need to query the record; we know a priori that
// we will need to back up this change.
if (values.containsKey(BookmarkColumns.BOOKMARK)) {
changingBookmarks = true;
} else if ((values.containsKey(BookmarkColumns.TITLE)
|| values.containsKey(BookmarkColumns.URL))
&& values.containsKey(BookmarkColumns._ID)) {
// If a title or URL has been changed, check to see if it is to
// a bookmark. The ID should have been included in the update,
// so use it.
Cursor cursor = cr.query(Browser.BOOKMARKS_URI,
new String[] { BookmarkColumns.BOOKMARK },
BookmarkColumns._ID + " = "
+ values.getAsString(BookmarkColumns._ID), null, null);
if (cursor.moveToNext()) {
changingBookmarks = (cursor.getInt(0) != 0);
}
cursor.close();
}
// if this *is* a bookmark row we're altering, we need to back it up.
if (changingBookmarks) {
mBackupManager.dataChanged();
}
}
int ret = db.update(TABLE_NAMES[match % 10], values, where, whereArgs);
cr.notifyChange(url, null);
return ret;
}
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
if (!canHandleContentProviderApiCall()) return 0;
// Check for invalid id values if provided.
// If it represents a bookmark node then it's the root node and not mutable.
// Otherwise it represents a SQLite row id, so 0 is invalid.
long bookmarkId = INVALID_CONTENT_PROVIDER_ID;
try {
bookmarkId = ContentUris.parseId(uri);
if (bookmarkId == INVALID_CONTENT_PROVIDER_ID) return 0;
} catch (Exception e) {
}
int match = mUriMatcher.match(uri);
int result;
switch (match) {
case URI_MATCH_BOOKMARKS_ID:
String url = null;
if (values.containsKey(Browser.BookmarkColumns.URL)) {
url = values.getAsString(Browser.BookmarkColumns.URL);
}
String title = values.getAsString(Browser.BookmarkColumns.TITLE);
long parentId = INVALID_BOOKMARK_ID;
if (values.containsKey(BOOKMARK_PARENT_ID_PARAM)) {
parentId = values.getAsLong(BOOKMARK_PARENT_ID_PARAM);
}
result = nativeUpdateBookmark(mNativeChromeBrowserProvider, bookmarkId, url, title,
parentId);
updateLastModifiedBookmarkFolder(parentId);
break;
case URL_MATCH_API_BOOKMARK_ID:
result = updateBookmarkFromAPI(values, buildWhereClause(bookmarkId, selection),
selectionArgs);
break;
case URL_MATCH_API_BOOKMARK:
result = updateBookmarkFromAPI(values, selection, selectionArgs);
break;
case URL_MATCH_API_SEARCHES_ID:
result = updateSearchTermFromAPI(values, buildWhereClause(bookmarkId, selection),
selectionArgs);
break;
case URL_MATCH_API_SEARCHES:
result = updateSearchTermFromAPI(values, selection, selectionArgs);
break;
case URL_MATCH_API_HISTORY_CONTENT:
result = updateBookmarkFromAPI(values, buildHistoryWhereClause(selection),
selectionArgs);
break;
case URL_MATCH_API_HISTORY_CONTENT_ID:
result = updateBookmarkFromAPI(values,
buildHistoryWhereClause(bookmarkId, selection), selectionArgs);
break;
case URL_MATCH_API_BOOKMARK_CONTENT:
result = updateBookmarkFromAPI(values, buildBookmarkWhereClause(selection),
selectionArgs);
break;
case URL_MATCH_API_BOOKMARK_CONTENT_ID:
result = updateBookmarkFromAPI(values,
buildBookmarkWhereClause(bookmarkId, selection), selectionArgs);
break;
default:
throw new IllegalArgumentException(TAG + ": update - unknown URL " + uri);
}
if (result != 0) {
getContext().getContentResolver().notifyChange(uri, null);
}
return result;
}
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
if (!canHandleContentProviderApiCall()) return 0;
// Check for invalid id values if provided.
// If it represents a bookmark node then it's the root node and not mutable.
// Otherwise it represents a SQLite row id, so 0 is invalid.
long bookmarkId = INVALID_CONTENT_PROVIDER_ID;
try {
bookmarkId = ContentUris.parseId(uri);
if (bookmarkId == INVALID_CONTENT_PROVIDER_ID) return 0;
} catch (Exception e) {
}
int match = mUriMatcher.match(uri);
int result;
switch (match) {
case URI_MATCH_BOOKMARKS_ID:
String url = null;
if (values.containsKey(Browser.BookmarkColumns.URL)) {
url = values.getAsString(Browser.BookmarkColumns.URL);
}
String title = values.getAsString(Browser.BookmarkColumns.TITLE);
long parentId = INVALID_BOOKMARK_ID;
if (values.containsKey(BOOKMARK_PARENT_ID_PARAM)) {
parentId = values.getAsLong(BOOKMARK_PARENT_ID_PARAM);
}
result = nativeUpdateBookmark(mNativeChromeBrowserProvider, bookmarkId, url, title,
parentId);
updateLastModifiedBookmarkFolder(parentId);
break;
case URL_MATCH_API_BOOKMARK_ID:
result = updateBookmarkFromAPI(values, buildWhereClause(bookmarkId, selection),
selectionArgs);
break;
case URL_MATCH_API_BOOKMARK:
result = updateBookmarkFromAPI(values, selection, selectionArgs);
break;
case URL_MATCH_API_SEARCHES_ID:
result = updateSearchTermFromAPI(values, buildWhereClause(bookmarkId, selection),
selectionArgs);
break;
case URL_MATCH_API_SEARCHES:
result = updateSearchTermFromAPI(values, selection, selectionArgs);
break;
case URL_MATCH_API_HISTORY_CONTENT:
result = updateBookmarkFromAPI(values, buildHistoryWhereClause(selection),
selectionArgs);
break;
case URL_MATCH_API_HISTORY_CONTENT_ID:
result = updateBookmarkFromAPI(values,
buildHistoryWhereClause(bookmarkId, selection), selectionArgs);
break;
case URL_MATCH_API_BOOKMARK_CONTENT:
result = updateBookmarkFromAPI(values, buildBookmarkWhereClause(selection),
selectionArgs);
break;
case URL_MATCH_API_BOOKMARK_CONTENT_ID:
result = updateBookmarkFromAPI(values,
buildBookmarkWhereClause(bookmarkId, selection), selectionArgs);
break;
default:
throw new IllegalArgumentException(TAG + ": update - unknown URL " + uri);
}
if (result != 0) {
getContext().getContentResolver().notifyChange(uri, null);
}
return result;
}