Android(安卓)providers 解析之telephony
16lz
2021-12-09
Android providers的源代码结构如下:
android-2.2-froyo/ com/ android/ providers：
- [applications]
- [calendar]
- [contacts]
- [downloads]
- [drm]
- [media]
- [settings]
- [telephony]
- [userdictionary]
本篇来解析一下telephony这个provider中的代码，首先来看一下它的目录结构：
android-2.2-froyo/ com/ android/ providers/ telephony：
- MmsProvider.java
- MmsSmsDatabaseHelper.java
- MmsSmsProvider.java
- SmsProvider.java
- TelephonyProvider.java
- Telephony.java (隐藏类，在Android 的source源代码中可以找到，如：sources\android-14\android\provider\Telephony.java)
以上6个类可以划分为3类：
第一类：数据库管理工具类 (A helper class to manage database)，包括：MmsSmsDatabaseHelper.java
第二类：与电话操作相关数据类，包括：Telephony，它是个特殊的类，隐藏类
第三类：内容提供者 (ContentProvider)，包括：MmsProvider.java、SmsProvider.java、MmsSmsProvider.java、TelephonyProvider.java，它们都继承于ContentProvider。
下面分别讲解一下以上三大类别的代码：
一、MmsSmsDatabaseHelper.java
由于它的代码有2828行，不宜贴出，这里抽取几个重要变量和方法来解析一下，
public class MmsSmsDatabaseHelper extends SQLiteOpenHelper 说明它是作为数据库管理工具类，
static final String DATABASE_NAME = "mmssms.db"; /// M: Code analyze 006, unknown, for database upgrade. static final int DATABASE_VERSION = 560000;
这里定义了数据库的名称和初始化版本。
/// M: Add for ip message @{ // this need be the first because it is used by later final consts. private static final String UPDATE_THREAD_READ_COUNT = " UPDATE threads SET readcount = " + " (SELECT count(_id)FROM " + " (SELECT DISTINCT date * 1 AS normalized_date, _id, read FROM sms " + " WHERE ((read=1) AND thread_id = new.thread_id AND (type != 3)) " + " UNION SELECT DISTINCT date * 1000 AS normalized_date, pdu._id, read " + " FROM pdu LEFT JOIN pending_msgs ON pdu._id = pending_msgs.msg_id " + " WHERE ((read=1) AND thread_id = new.thread_id AND msg_box != 3 AND (msg_box != 3 " + " AND (m_type = 128 OR m_type = 132 OR m_type = 130)))" + " UNION SELECT DISTINCT date * 1 AS normalized_date, _id, read FROM cellbroadcast " + " WHERE ((read=1) AND thread_id = new.thread_id) ORDER BY normalized_date ASC)) " + " WHERE threads._id = new.thread_id; "; 其中还定义了类似的数据库语句的final型变量，如：UPDATE_THREAD_READ_COUNT_OLD、SMS_UPDATE_THREAD_READ_BODY、UPDATE_THREAD_COUNT_ON_NEW、UPDATE_THREAD_COUNT_ON_OLD、SMS_UPDATE_THREAD_DATE_SNIPPET_COUNT_ON_UPDATE等。
二、Telephony.java
The Telephony provider contains data related to phone operation.
该类的outline:
该类中定义了几个非常重要的内部类，在MmsProvider，SmsProvider，MmsSmsProvider中会用到。
1、接口 TextBasedSmsColumns：Base columns for tables that contain text based SMSs.
2、接口 BaseMmsColumns ：Base columns for tables that contain MMSs.
public interface BaseMmsColumns extends BaseColumns 它继承BaseColumns这个接口。
3、接口 CanonicalAddressesColumns ：Columns for the "canonical_addresses" table used by MMS and
* SMS."
public interface CanonicalAddressesColumns extends BaseColumns。
4、接口 ThreadsColumns ：Columns for the "threads" table used by MMS and SMS.
public interface ThreadsColumns extends BaseColumns.
5、类 Sms：
类结构截图
Sms中定义了6个内部类，
代码：
/** * Contains all text based SMS messages. */ public static final class Sms implements BaseColumns, TextBasedSmsColumns { public static final Cursor query(ContentResolver cr, String[] projection) { return cr.query(CONTENT_URI, projection, null, null, DEFAULT_SORT_ORDER); } public static final Cursor query(ContentResolver cr, String[] projection, String where, String orderBy) { return cr.query(CONTENT_URI, projection, where, null, orderBy == null ? DEFAULT_SORT_ORDER : orderBy); } /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://sms"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; /** * Add an SMS to the given URI. * * @param resolver the content resolver to use * @param uri the URI to add the message to * @param address the address of the sender * @param body the body of the message * @param subject the psuedo-subject of the message * @param date the timestamp for the message * @param read true if the message has been read, false if not * @param deliveryReport true if a delivery report was requested, false if not * @return the URI for the new message */ public static Uri addMessageToUri(ContentResolver resolver, Uri uri, String address, String body, String subject, Long date, boolean read, boolean deliveryReport) { return addMessageToUri(resolver, uri, address, body, subject, date, read, deliveryReport, -1L); } /** * Add an SMS to the given URI with thread_id specified. * * @param resolver the content resolver to use * @param uri the URI to add the message to * @param address the address of the sender * @param body the body of the message * @param subject the psuedo-subject of the message * @param date the timestamp for the message * @param read true if the message has been read, false if not * @param deliveryReport true if a delivery report was requested, false if not * @param threadId the thread_id of the message * @return the URI for the new message */ public static Uri addMessageToUri(ContentResolver resolver, Uri uri, String address, String body, String subject, Long date, boolean read, boolean deliveryReport, long threadId) { ContentValues values = new ContentValues(7); values.put(ADDRESS, address); if (date != null) { values.put(DATE, date); } values.put(READ, read ? Integer.valueOf(1) : Integer.valueOf(0)); values.put(SUBJECT, subject); values.put(BODY, body); if (deliveryReport) { values.put(STATUS, STATUS_PENDING); } if (threadId != -1L) { values.put(THREAD_ID, threadId); } return resolver.insert(uri, values); } /** * Move a message to the given folder. * * @param context the context to use * @param uri the message to move * @param folder the folder to move to * @return true if the operation succeeded */ public static boolean moveMessageToFolder(Context context, Uri uri, int folder, int error) { if (uri == null) { return false; } boolean markAsUnread = false; boolean markAsRead = false; switch(folder) { case MESSAGE_TYPE_INBOX: case MESSAGE_TYPE_DRAFT: break; case MESSAGE_TYPE_OUTBOX: case MESSAGE_TYPE_SENT: markAsRead = true; break; case MESSAGE_TYPE_FAILED: case MESSAGE_TYPE_QUEUED: markAsUnread = true; break; default: return false; } ContentValues values = new ContentValues(3); values.put(TYPE, folder); if (markAsUnread) { values.put(READ, Integer.valueOf(0)); } else if (markAsRead) { values.put(READ, Integer.valueOf(1)); } values.put(ERROR_CODE, error); return 1 == SqliteWrapper.update(context, context.getContentResolver(), uri, values, null, null); } /** * Returns true iff the folder (message type) identifies an * outgoing message. */ public static boolean isOutgoingFolder(int messageType) { return (messageType == MESSAGE_TYPE_FAILED) || (messageType == MESSAGE_TYPE_OUTBOX) || (messageType == MESSAGE_TYPE_SENT) || (messageType == MESSAGE_TYPE_QUEUED); } /** * Contains all text based SMS messages in the SMS app's inbox. */ public static final class Inbox implements BaseColumns, TextBasedSmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://sms/inbox"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; /** * Add an SMS to the Draft box. * * @param resolver the content resolver to use * @param address the address of the sender * @param body the body of the message * @param subject the psuedo-subject of the message * @param date the timestamp for the message * @param read true if the message has been read, false if not * @return the URI for the new message */ public static Uri addMessage(ContentResolver resolver, String address, String body, String subject, Long date, boolean read) { return addMessageToUri(resolver, CONTENT_URI, address, body, subject, date, read, false); } } /** * Contains all sent text based SMS messages in the SMS app's. */ public static final class Sent implements BaseColumns, TextBasedSmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://sms/sent"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; /** * Add an SMS to the Draft box. * * @param resolver the content resolver to use * @param address the address of the sender * @param body the body of the message * @param subject the psuedo-subject of the message * @param date the timestamp for the message * @return the URI for the new message */ public static Uri addMessage(ContentResolver resolver, String address, String body, String subject, Long date) { return addMessageToUri(resolver, CONTENT_URI, address, body, subject, date, true, false); } } /** * Contains all sent text based SMS messages in the SMS app's. */ public static final class Draft implements BaseColumns, TextBasedSmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://sms/draft"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; /** * Add an SMS to the Draft box. * * @param resolver the content resolver to use * @param address the address of the sender * @param body the body of the message * @param subject the psuedo-subject of the message * @param date the timestamp for the message * @return the URI for the new message */ public static Uri addMessage(ContentResolver resolver, String address, String body, String subject, Long date) { return addMessageToUri(resolver, CONTENT_URI, address, body, subject, date, true, false); } /** * Save over an existing draft message. * * @param resolver the content resolver to use * @param uri of existing message * @param body the new body for the draft message * @return true is successful, false otherwise */ public static boolean saveMessage(ContentResolver resolver, Uri uri, String body) { ContentValues values = new ContentValues(2); values.put(BODY, body); values.put(DATE, System.currentTimeMillis()); return resolver.update(uri, values, null, null) == 1; } } /** * Contains all pending outgoing text based SMS messages. */ public static final class Outbox implements BaseColumns, TextBasedSmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://sms/outbox"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; /** * Add an SMS to the Out box. * * @param resolver the content resolver to use * @param address the address of the sender * @param body the body of the message * @param subject the psuedo-subject of the message * @param date the timestamp for the message * @param deliveryReport whether a delivery report was requested for the message * @return the URI for the new message */ public static Uri addMessage(ContentResolver resolver, String address, String body, String subject, Long date, boolean deliveryReport, long threadId) { return addMessageToUri(resolver, CONTENT_URI, address, body, subject, date, true, deliveryReport, threadId); } } /** * Contains all sent text-based SMS messages in the SMS app's. */ public static final class Conversations implements BaseColumns, TextBasedSmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://sms/conversations"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; /** * The first 45 characters of the body of the message * <P>Type: TEXT</P> */ public static final String SNIPPET = "snippet"; /** * The number of messages in the conversation * <P>Type: INTEGER</P> */ public static final String MESSAGE_COUNT = "msg_count"; } /** * Contains info about SMS related Intents that are broadcast. */ public static final class Intents { /** * Set by BroadcastReceiver. Indicates the message was handled * successfully. */ public static final int RESULT_SMS_HANDLED = 1; /** * Set by BroadcastReceiver. Indicates a generic error while * processing the message. */ public static final int RESULT_SMS_GENERIC_ERROR = 2; /** * Set by BroadcastReceiver. Indicates insufficient memory to store * the message. */ public static final int RESULT_SMS_OUT_OF_MEMORY = 3; /** * Set by BroadcastReceiver. Indicates the message, while * possibly valid, is of a format or encoding that is not * supported. */ public static final int RESULT_SMS_UNSUPPORTED = 4; /** * Broadcast Action: A new text based SMS message has been received * by the device. The intent will have the following extra * values:</p> * * <ul> * <li><em>pdus</em> - An Object[] od byte[]s containing the PDUs * that make up the message.</li> * </ul> * * <p>The extra values can be extracted using * {@link #getMessagesFromIntent(Intent)}.</p> * * <p>If a BroadcastReceiver encounters an error while processing * this intent it should set the result code appropriately.</p> */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String SMS_RECEIVED_ACTION = "android.provider.Telephony.SMS_RECEIVED"; /** * Broadcast Action: A new data based SMS message has been received * by the device. The intent will have the following extra * values:</p> * * <ul> * <li><em>pdus</em> - An Object[] of byte[]s containing the PDUs * that make up the message.</li> * </ul> * * <p>The extra values can be extracted using * {@link #getMessagesFromIntent(Intent)}.</p> * * <p>If a BroadcastReceiver encounters an error while processing * this intent it should set the result code appropriately.</p> */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String DATA_SMS_RECEIVED_ACTION = "android.intent.action.DATA_SMS_RECEIVED"; /** * Broadcast Action: A new WAP PUSH message has been received by the * device. The intent will have the following extra * values:</p> * * <ul> * <li><em>transactionId (Integer)</em> - The WAP transaction ID</li> * <li><em>pduType (Integer)</em> - The WAP PDU type</li> * <li><em>header (byte[])</em> - The header of the message</li> * <li><em>data (byte[])</em> - The data payload of the message</li> * <li><em>contentTypeParameters (HashMap<String,String>)</em> * - Any parameters associated with the content type * (decoded from the WSP Content-Type header)</li> * </ul> * * <p>If a BroadcastReceiver encounters an error while processing * this intent it should set the result code appropriately.</p> * * <p>The contentTypeParameters extra value is map of content parameters keyed by * their names.</p> * * <p>If any unassigned well-known parameters are encountered, the key of the map will * be 'unassigned/0x...', where '...' is the hex value of the unassigned parameter. If * a parameter has No-Value the value in the map will be null.</p> */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String WAP_PUSH_RECEIVED_ACTION = "android.provider.Telephony.WAP_PUSH_RECEIVED"; /** * Broadcast Action: A new Cell Broadcast message has been received * by the device. The intent will have the following extra * values:</p> * * <ul> * <li><em>pdus</em> - An Object[] of byte[]s containing the PDUs * that make up the message.</li> * </ul> * * <p>The extra values can be extracted using * {@link #getMessagesFromIntent(Intent)}.</p> * * <p>If a BroadcastReceiver encounters an error while processing * this intent it should set the result code appropriately.</p> */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String SMS_CB_RECEIVED_ACTION = "android.provider.Telephony.SMS_CB_RECEIVED"; /** * Broadcast Action: A new Emergency Broadcast message has been received * by the device. The intent will have the following extra * values:</p> * * <ul> * <li><em>pdus</em> - An Object[] of byte[]s containing the PDUs * that make up the message.</li> * </ul> * * <p>The extra values can be extracted using * {@link #getMessagesFromIntent(Intent)}.</p> * * <p>If a BroadcastReceiver encounters an error while processing * this intent it should set the result code appropriately.</p> */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String SMS_EMERGENCY_CB_RECEIVED_ACTION = "android.provider.Telephony.SMS_EMERGENCY_CB_RECEIVED"; /** * Broadcast Action: The SIM storage for SMS messages is full. If * space is not freed, messages targeted for the SIM (class 2) may * not be saved. */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String SIM_FULL_ACTION = "android.provider.Telephony.SIM_FULL"; /** * Broadcast Action: An incoming SMS has been rejected by the * telephony framework. This intent is sent in lieu of any * of the RECEIVED_ACTION intents. The intent will have the * following extra value:</p> * * <ul> * <li><em>result</em> - An int result code, eg, * <code>{@link #RESULT_SMS_OUT_OF_MEMORY}</code>, * indicating the error returned to the network.</li> * </ul> */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String SMS_REJECTED_ACTION = "android.provider.Telephony.SMS_REJECTED"; /** * Read the PDUs out of an {@link #SMS_RECEIVED_ACTION} or a * {@link #DATA_SMS_RECEIVED_ACTION} intent. * * @param intent the intent to read from * @return an array of SmsMessages for the PDUs */ public static SmsMessage[] getMessagesFromIntent( Intent intent) { Object[] messages = (Object[]) intent.getSerializableExtra("pdus"); String format = intent.getStringExtra("format"); byte[][] pduObjs = new byte[messages.length][]; for (int i = 0; i < messages.length; i++) { pduObjs[i] = (byte[]) messages[i]; } byte[][] pdus = new byte[pduObjs.length][]; int pduCount = pdus.length; SmsMessage[] msgs = new SmsMessage[pduCount]; for (int i = 0; i < pduCount; i++) { pdus[i] = pduObjs[i]; msgs[i] = SmsMessage.createFromPdu(pdus[i], format); } return msgs; } } }
Inbox类：
public static final class Inbox implements BaseColumns, TextBasedSmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://sms/inbox"); }
类似的还有Sent、Draft、Outbox、Conversations这几个都implements BaseMmsColumns，跟Inbox不一样。
BaseMmsColumns的代码：
public interface BaseMmsColumns extends BaseColumns { public static final int MESSAGE_BOX_ALL = 0; public static final int MESSAGE_BOX_INBOX = 1; public static final int MESSAGE_BOX_SENT = 2; public static final int MESSAGE_BOX_DRAFTS = 3; public static final int MESSAGE_BOX_OUTBOX = 4;
原来它是继承BaseColumns,在它基础上加了些变量。
1、Sms类：
/** * Contains all MMS and SMS messages. */ public static final class MmsSms implements BaseColumns { /** * The column to distinguish SMS & MMS messages in query results. */ public static final String TYPE_DISCRIMINATOR_COLUMN = "transport_type"; public static final Uri CONTENT_URI = Uri.parse("content://mms-sms/"); public static final Uri CONTENT_CONVERSATIONS_URI = Uri.parse( "content://mms-sms/conversations"); public static final Uri CONTENT_FILTER_BYPHONE_URI = Uri.parse( "content://mms-sms/messages/byphone"); public static final Uri CONTENT_UNDELIVERED_URI = Uri.parse( "content://mms-sms/undelivered"); public static final Uri CONTENT_DRAFT_URI = Uri.parse( "content://mms-sms/draft"); public static final Uri CONTENT_LOCKED_URI = Uri.parse( "content://mms-sms/locked"); /*** * Pass in a query parameter called "pattern" which is the text * to search for. * The sort order is fixed to be thread_id ASC,date DESC. */ public static final Uri SEARCH_URI = Uri.parse( "content://mms-sms/search"); // Constants for message protocol types. public static final int SMS_PROTO = 0; public static final int MMS_PROTO = 1; // Constants for error types of pending messages. public static final int NO_ERROR = 0; public static final int ERR_TYPE_GENERIC = 1; public static final int ERR_TYPE_SMS_PROTO_TRANSIENT = 2; public static final int ERR_TYPE_MMS_PROTO_TRANSIENT = 3; public static final int ERR_TYPE_TRANSPORT_FAILURE = 4; public static final int ERR_TYPE_GENERIC_PERMANENT = 10; public static final int ERR_TYPE_SMS_PROTO_PERMANENT = 11; public static final int ERR_TYPE_MMS_PROTO_PERMANENT = 12; public static final class PendingMessages implements BaseColumns { public static final Uri CONTENT_URI = Uri.withAppendedPath( MmsSms.CONTENT_URI, "pending"); /** * The type of transport protocol(MMS or SMS). * <P>Type: INTEGER</P> */ public static final String PROTO_TYPE = "proto_type"; /** * The ID of the message to be sent or downloaded. * <P>Type: INTEGER</P> */ public static final String MSG_ID = "msg_id"; /** * The type of the message to be sent or downloaded. * This field is only valid for MM. For SM, its value is always * set to 0. */ public static final String MSG_TYPE = "msg_type"; /** * The type of the error code. * <P>Type: INTEGER</P> */ public static final String ERROR_TYPE = "err_type"; /** * The error code of sending/retrieving process. * <P>Type: INTEGER</P> */ public static final String ERROR_CODE = "err_code"; /** * How many times we tried to send or download the message. * <P>Type: INTEGER</P> */ public static final String RETRY_INDEX = "retry_index"; /** * The time to do next retry. */ public static final String DUE_TIME = "due_time"; /** * The time we last tried to send or download the message. */ public static final String LAST_TRY = "last_try"; } public static final class WordsTable { public static final String ID = "_id"; public static final String SOURCE_ROW_ID = "source_id"; public static final String TABLE_ID = "table_to_use"; public static final String INDEXED_TEXT = "index_text"; } }
2、Mms类：
/** * Contains all MMS messages. */ public static final class Mms implements BaseMmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://mms"); public static final Uri REPORT_REQUEST_URI = Uri.withAppendedPath( CONTENT_URI, "report-request"); public static final Uri REPORT_STATUS_URI = Uri.withAppendedPath( CONTENT_URI, "report-status"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; /** * mailbox = name-addr * name-addr = [display-name] angle-addr * angle-addr = [CFWS] "<" addr-spec ">" [CFWS] */ public static final Pattern NAME_ADDR_EMAIL_PATTERN = Pattern.compile("\\s*(\"[^\"]*\"|[^<>\"]+)\\s*<([^<>]+)>\\s*"); /** * quoted-string = [CFWS] * DQUOTE *([FWS] qcontent) [FWS] DQUOTE * [CFWS] */ public static final Pattern QUOTED_STRING_PATTERN = Pattern.compile("\\s*\"([^\"]*)\"\\s*"); public static final Cursor query( ContentResolver cr, String[] projection) { return cr.query(CONTENT_URI, projection, null, null, DEFAULT_SORT_ORDER); } public static final Cursor query( ContentResolver cr, String[] projection, String where, String orderBy) { return cr.query(CONTENT_URI, projection, where, null, orderBy == null ? DEFAULT_SORT_ORDER : orderBy); } public static final String getMessageBoxName(int msgBox) { switch (msgBox) { case MESSAGE_BOX_ALL: return "all"; case MESSAGE_BOX_INBOX: return "inbox"; case MESSAGE_BOX_SENT: return "sent"; case MESSAGE_BOX_DRAFTS: return "drafts"; case MESSAGE_BOX_OUTBOX: return "outbox"; default: throw new IllegalArgumentException("Invalid message box: " + msgBox); } } public static String extractAddrSpec(String address) { Matcher match = NAME_ADDR_EMAIL_PATTERN.matcher(address); if (match.matches()) { return match.group(2); } return address; } /** * Returns true if the address is an email address * * @param address the input address to be tested * @return true if address is an email address */ public static boolean isEmailAddress(String address) { if (TextUtils.isEmpty(address)) { return false; } String s = extractAddrSpec(address); Matcher match = Patterns.EMAIL_ADDRESS.matcher(s); return match.matches(); } /** * Returns true if the number is a Phone number * * @param number the input number to be tested * @return true if number is a Phone number */ public static boolean isPhoneNumber(String number) { if (TextUtils.isEmpty(number)) { return false; } Matcher match = Patterns.PHONE.matcher(number); return match.matches(); } /** * Contains all MMS messages in the MMS app's inbox. */ public static final class Inbox implements BaseMmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://mms/inbox"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; } /** * Contains all MMS messages in the MMS app's sent box. */ public static final class Sent implements BaseMmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://mms/sent"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; } /** * Contains all MMS messages in the MMS app's drafts box. */ public static final class Draft implements BaseMmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://mms/drafts"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; } /** * Contains all MMS messages in the MMS app's outbox. */ public static final class Outbox implements BaseMmsColumns { /** * The content:// style URL for this table */ public static final Uri CONTENT_URI = Uri.parse("content://mms/outbox"); /** * The default sort order for this table */ public static final String DEFAULT_SORT_ORDER = "date DESC"; } public static final class Addr implements BaseColumns { /** * The ID of MM which this address entry belongs to. */ public static final String MSG_ID = "msg_id"; /** * The ID of contact entry in Phone Book. */ public static final String CONTACT_ID = "contact_id"; /** * The address text. */ public static final String ADDRESS = "address"; /** * Type of address, must be one of PduHeaders.BCC, * PduHeaders.CC, PduHeaders.FROM, PduHeaders.TO. */ public static final String TYPE = "type"; /** * Character set of this entry. */ public static final String CHARSET = "charset"; } public static final class Part implements BaseColumns { /** * The identifier of the message which this part belongs to. * <P>Type: INTEGER</P> */ public static final String MSG_ID = "mid"; /** * The order of the part. * <P>Type: INTEGER</P> */ public static final String SEQ = "seq"; /** * The content type of the part. * <P>Type: TEXT</P> */ public static final String CONTENT_TYPE = "ct"; /** * The name of the part. * <P>Type: TEXT</P> */ public static final String NAME = "name"; /** * The charset of the part. * <P>Type: TEXT</P> */ public static final String CHARSET = "chset"; /** * The file name of the part. * <P>Type: TEXT</P> */ public static final String FILENAME = "fn"; /** * The content disposition of the part. * <P>Type: TEXT</P> */ public static final String CONTENT_DISPOSITION = "cd"; /** * The content ID of the part. * <P>Type: INTEGER</P> */ public static final String CONTENT_ID = "cid"; /** * The content location of the part. * <P>Type: INTEGER</P> */ public static final String CONTENT_LOCATION = "cl"; /** * The start of content-type of the message. * <P>Type: INTEGER</P> */ public static final String CT_START = "ctt_s"; /** * The type of content-type of the message. * <P>Type: TEXT</P> */ public static final String CT_TYPE = "ctt_t"; /** * The location(on filesystem) of the binary data of the part. * <P>Type: INTEGER</P> */ public static final String _DATA = "_data"; public static final String TEXT = "text"; } public static final class Rate { public static final Uri CONTENT_URI = Uri.withAppendedPath( Mms.CONTENT_URI, "rate"); /** * When a message was successfully sent. * <P>Type: INTEGER</P> */ public static final String SENT_TIME = "sent_time"; } public static final class Intents { private Intents() { // Non-instantiatable. } /** * The extra field to store the contents of the Intent, * which should be an array of Uri. */ public static final String EXTRA_CONTENTS = "contents"; /** * The extra field to store the type of the contents, * which should be an array of String. */ public static final String EXTRA_TYPES = "types"; /** * The extra field to store the 'Cc' addresses. */ public static final String EXTRA_CC = "cc"; /** * The extra field to store the 'Bcc' addresses; */ public static final String EXTRA_BCC = "bcc"; /** * The extra field to store the 'Subject'. */ public static final String EXTRA_SUBJECT = "subject"; /** * Indicates that the contents of specified URIs were changed. * The application which is showing or caching these contents * should be updated. */ public static final String CONTENT_CHANGED_ACTION = "android.intent.action.CONTENT_CHANGED"; /** * An extra field which stores the URI of deleted contents. */ public static final String DELETED_CONTENTS = "deleted_contents"; } }
三、SmsProvider.java
The class to provide base facility to access MMS related content, which is stored in a SQLite database and in the file system.
短信的uri以content://sms开头。
可以使用Telephony中的Sms类提供的公共变量进行构造Uri，甚至使用其中提供的一些addMessage（将信息存入各个不同的信箱）、saveMessage（更新已存在的草稿）、addMessageToUri（插入数据到指定Uri）、moveMessageToFolder（将信息移到某一信箱）方法简化操作。
UriMatcher中配置了27种类型：
| AUTHORITY | PATH | 类型 | 说明 |
| sms | SMS_ALL | 所有短信 | |
| sms | # | SMS_ALL_ID | 指定了_id的短信 |
| sms | inbox | SMS_INBOX | 位于收件箱的短信 |
| sms | inbox/# | SMS_INBOX_ID | 位于收件箱的指定了_id的短信 |
| sms | sent | SMS_SENT | 已成功发送出去的短信 |
| sms | sent/# | SMS_SENT_ID | 已成功发送出去的指定了_id的短信 |
| sms | draft | SMS_DRAFT | 位于草稿箱的短信 |
| sms | draft | SMS_DRAFT_ID | 位于草稿箱的指定了_id的短信 |
| sms | outbox | SMS_OUTBOX | 已从队列中取出进行处理但未成功发送出去的短信 |
| sms | outbox/# | SMS_OUTBOX_ID | 已从队列中取出进行处理但未成功发送出去的指定了_id的短信 |
| sms | undelivered | SMS_UNDELIVERED | 未成功发送出去的短信（包括发送失败、草稿、队列中的） |
| sms | failed | SMS_FAILED | 发送失败的短信 |
| sms | failed/# | SMS_FAILED_ID | 发送失败的指定了_id的短信 |
| sms | queued | SMS_QUEUED | 队列中的短信 |
| sms | conversations | SMS_CONVERSATIONS | 所有会话包含的短信数量、内容、会话id |
| sms | conversations/* | SMS_CONVERSATIONS_ID | 指定会话id的短信 |
| sms | raw | SMS_RAW_MESSAGE | raw表中的短信（临时短信，用于接收长短信时使用） |
| sms | attachments | SMS_ATTACHMENT | 往attachments表中插入或查询信息 |
| sms | attachments/# | SMS_ATTACHMENT_ID | 从attachments表中查询指定sms_id的信息 |
| sms | threadID | SMS_NEW_THREAD_ID | 往canonical_addresses表中插入信息 |
| sms | threadID/* | SMS_QUERY_THREAD_ID | 查询canonical_addresses中所有信息 |
| sms | status/# | SMS_STATUS_ID | 查询或更新指定id的短信（没有什么特殊功能，有可能没用上） |
| sms | sr_pending | SMS_STATUS_PENDING | 对sr_pending表进行操作时用的 |
| sms | icc | SMS_ALL_ICC | 所有存在SIM/UIM卡上的短信 |
| sms | icc/# | SMS_ICC | 指定id的存在SIM/UIM卡上的短信 |
| sms | sim | SMS_ALL_ICC | 所有存在SIM/UIM卡上的短信 |
| sms | sim/# | SMS_ICC | 指定id的存在SIM/UIM卡上的短信 |
更多相关文章
- android发送post请求出现问题
- Android在MTP模式下，只显示指定文件夹
- Android调用系统短信发送界面并预设接收号码、短信内容
- 关于android中shape的使用
- 'xlargeScreens' in package 'android'
- Android(安卓)bluetooth介绍（四）： a2dp connect流程分析
- android打电话发短信
- Android(安卓)命令行编译、打包生成apk文件
- Android(安卓)开发中的倒计时