編輯:關於Android編程
最近做項目要解析手機中短信,獲取短信有兩種方式:一種是通過廣播另一種就是通過數據庫,由於項目需要我選擇的是第二種方式,檢索數據庫來獲取短信信息並且進行解析指定內容的短信。
在做任何一個新的功能的時候,我們首先查閱一下相關的知識,然後看看有沒有相關的demo,最後建議反過來看Android應用層源碼,看看它裡面的一些常量的定義,建議使用高版本的api,你不一定能夠使用它,但是它會給你指出一些思路,就拿短信這個功能為例:
既然我們要獲取短信的信息,那就要只要它的各個組成部分,我們進入到android.jar裡面中的android.provider.Telephony,我們可以看到Sms的相關的屬性。如果你調用這裡面的內容的話,會提示Field requires API level 19 (current min is ),但是這並不妨礙我們去模仿他, 我的需要是要檢索收件箱,所以搜索數據庫的時候,我只需要搜索收件箱裡面的短信,在Telephony中TextBasedSmsColumns接口裡面Message type根據需要我選擇的是MESSAGE_TYPE_INBOX,接下來我們看一下Sms這個接口:
/**
* Contains all text-based SMS messages.
*/
public static final class Sms implements BaseColumns, TextBasedSmsColumns {
/**
* Not instantiable.
* @hide
*/
private Sms() {
}
/**
* Used to determine the currently configured default SMS package.
* @param context context of the requesting application
* @return package name for the default SMS package or null
*/
public static String getDefaultSmsPackage(Context context) {
ComponentName component = SmsApplication.getDefaultSmsApplication(context, false);
if (component != null) {
return component.getPackageName();
}
return null;
}
/**
* Return cursor for table query.
* @hide
*/
public static Cursor query(ContentResolver cr, String[] projection) {
return cr.query(CONTENT_URI, projection, null, null, DEFAULT_SORT_ORDER);
}
/**
* Return cursor for table query.
* @hide
*/
public static 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 {@code 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 pseudo-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
* @hide
*/
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 the specified thread ID.
*
* @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 pseudo-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
* @hide
*/
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
* @hide
*/
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, 0);
} else if (markAsRead) {
values.put(READ, 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.
* @hide
*/
public static boolean isOutgoingFolder(int messageType) {
return (messageType == MESSAGE_TYPE_FAILED)
|| (messageType == MESSAGE_TYPE_OUTBOX)
|| (messageType == MESSAGE_TYPE_SENT)
|| (messageType == MESSAGE_TYPE_QUEUED);
}
裡面給出了查詢功能和添加功能,由於我只需要查詢功能,但是裡面public static final Uri CONTENT_URI = Uri.parse("content://sms");說明查詢的是所有的短信,而我只要查詢收件箱裡面的,所以上面這就話改成public static final Uri CONTENT_URI = Uri.parse("content://sms/inbox");把Sms和TextBasedSmsColumns接口的內容拷貝出來分別放在兩個接口裡面命名自己設置,而Sms裡面會有一些報錯,有些我們引用了系統不開放的方法,把不相關的代碼進行刪除,整理後的代碼如下:
package com.jwzhangjie.smarttv_client.support.sms1;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import android.provider.BaseColumns;
public final class Sms implements BaseColumns, TextBasedSmsColumns{
/**
* Not instantiable.
* @hide
*/
private Sms() {
}
/**
* Return cursor for table query.
* @hide
*/
public static Cursor query(ContentResolver cr, String[] projection) {
return cr.query(CONTENT_URI, projection, null, null, DEFAULT_SORT_ORDER);
}
/**
* Return cursor for table query.
* @hide
*/
public static 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 {@code content://} style URL for this table.
*/
// public static final Uri CONTENT_URI = Uri.parse("content://sms");
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 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 pseudo-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
* @hide
*/
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 the specified thread ID.
*
* @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 pseudo-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
* @hide
*/
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);
}
/**
* Returns true iff the folder (message type) identifies an
* outgoing message.
* @hide
*/
public static boolean isOutgoingFolder(int messageType) {
return (messageType == MESSAGE_TYPE_FAILED)
|| (messageType == MESSAGE_TYPE_OUTBOX)
|| (messageType == MESSAGE_TYPE_SENT)
|| (messageType == MESSAGE_TYPE_QUEUED);
}
}
上面的代碼不會有錯誤,查詢功能有了之後,我們還要寫一個保存查詢出來的內容的類,根據自己的項目編寫,例如:
package com.jwzhangjie.smarttv_client.support.sms1;
/**
* 數據庫中sms相關的字段如下:
_id 一個自增字段,從1開始
thread_id 序號,同一發信人的id相同
address 發件人手機號碼
person 聯系人列表裡的序號,陌生人為null
date 發件日期
protocol 協議,分為: 0 SMS_RPOTO, 1 MMS_PROTO
read 是否閱讀 0未讀, 1已讀
status 狀態 -1接收,0 complete, 64 pending, 128 failed
type
ALL = 0;
INBOX = 1;
SENT = 2;
DRAFT = 3;
OUTBOX = 4;
FAILED = 5;
QUEUED = 6;
body 短信內容
service_center 短信服務中心號碼編號
subject 短信的主題
reply_path_present TP-Reply-Path
locked
*/
import android.os.Parcel;
import android.os.Parcelable;
/**
* 保存短息信息
* @author jwzhangjie
*
*/
public class SMSInfo implements Parcelable{
@Override
public int describeContents() {
return 0;
}
/**
* 短信序號
*/
private long id;
/**
* 協議 0:SMS_PROTO 短信 1:MMS_PROTO彩信
*/
private int protocol;
/**
* 短信內容
*/
private String smsBody;
/**
* 發送短息的電話號碼
*/
private String smsPhoneNum;
/**
* 發送短信的日期和時間
*/
private String smsDateTime;
/**
* 發送短信人
*/
private String smsSender;
/**
* 短信類型:1是接收到的 2是已發送的
*/
private int smsType;
public SMSInfo(){
}
private SMSInfo(Parcel source){
readFromParcel(source);
}
public void readFromParcel(Parcel source){
id = source.readLong();
protocol = source.readInt();
smsBody = source.readString();
smsPhoneNum = source.readString();
smsDateTime = source.readString();
smsSender = source.readString();
smsType = source.readInt();
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeLong(id);
dest.writeInt(protocol);
dest.writeString(smsBody);
dest.writeString(smsPhoneNum);
dest.writeString(smsDateTime);
dest.writeString(smsSender);
dest.writeInt(smsType);
}
public static Creator CREATOR = new Creator() {
@Override
public SMSInfo createFromParcel(Parcel source) {
return new SMSInfo(source);
}
@Override
public SMSInfo[] newArray(int size) {
return new SMSInfo[size];
}
};
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("id :"+id+" 協議:"+protocol+" 內容:"+smsBody);
return builder.toString();
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public int getProtocol() {
return protocol;
}
public void setProtocol(int protocol) {
this.protocol = protocol;
}
public String getSmsBody() {
return smsBody;
}
public void setSmsBody(String smsBody) {
this.smsBody = smsBody;
}
public String getSmsPhoneNum() {
return smsPhoneNum;
}
public void setSmsPhoneNum(String smsPhoneNum) {
this.smsPhoneNum = smsPhoneNum;
}
public String getSmsDateTime() {
return smsDateTime;
}
public void setSmsDateTime(String smsDateTime) {
this.smsDateTime = smsDateTime;
}
public String getSmsSender() {
return smsSender;
}
public void setSmsSender(String smsSender) {
this.smsSender = smsSender;
}
public int getSmsType() {
return smsType;
}
public void setSmsType(int smsType) {
this.smsType = smsType;
}
}
接下來就是獲取數據庫內容,我們先看一下查詢數據庫的方法:
/**
* Return cursor for table query.
* @hide
*/
public static Cursor query(ContentResolver cr, String[] projection,
String where, String orderBy) {
return cr.query(CONTENT_URI, projection, where,
null, orderBy == null ? DEFAULT_SORT_ORDER : orderBy);
}
CONTENT_URI:就是我們上面定義的public static final Uri CONTENT_URI = Uri.parse("content://sms/inbox");
projection:這個可以是null,那就是把所有的列都獲取出來,不過不必,你需要什麼就獲取什麼,不然既浪費時間又浪費內存
where:查詢條件
orderBy:排序
package com.jwzhangjie.smarttv_client.support.sms1;
import java.util.ArrayList;
import java.util.List;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
public class GetSMSInfo {
private ContentResolver mResolver;
private Context context;
private List infos;
private static final String[] PROJECTION = new String[]{
Sms._ID,//0:作為一個標志位,記錄最後一個,作為下一次掃描的第一個
Sms.TYPE,//1:收還是發
Sms.ADDRESS,//2手機號
Sms.BODY,//3內容
Sms.DATE,//4日期
Sms.PROTOCOL//5協議
};
public static final int COLUMN_INDEX_ID = 0;
public static final int COLUMN_INDEX_TYPE = 1;
public static final int COLUMN_INDEX_PHONE = 2;
public static final int COLUMN_INDEX_BODY = 3;
public static final int COLUMN_INDEX_DATE = 4;
public static final int COLUMN_INDEX_PROTOCOL = 5;
public GetSMSInfo(Context context){
this.infos = new ArrayList();
this.mResolver = context.getContentResolver();
this.context = context;
}
/**
* 獲取短信各種信息
*/
public List getSmsInfo(){
//獲取上一次檢索的最後一個ID
long last_sms_id = UPSharedPreferences.getLong(context, "card", "last_sms_id", 0);
Cursor cursor = Sms.query(mResolver, PROJECTION, "_id >" + last_sms_id, "_id");
int protocol;
String body, date;
if (cursor != null) {
while (cursor.moveToNext()) {
last_sms_id = cursor.getLong(COLUMN_INDEX_ID);
body = cursor.getString(COLUMN_INDEX_BODY);
date = cursor.getString(COLUMN_INDEX_DATE);
protocol = cursor.getInt(COLUMN_INDEX_PROTOCOL);
if (protocol == 0) {//收信息
SMSInfo info = new SMSInfo();
info.setId(last_sms_id);
info.setSmsBody(body);
info.setSmsDateTime(date);
infos.add(info);
}
}
cursor.close();
}
//保存當前最新的ID
UPSharedPreferences.setLong(context, "card", "last_sms_id", last_sms_id);
return infos;
}
} 讀取得所有符合條件的短信都放在List
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