基于安卓短信的备份和恢复
我做的是将短信备份到本地的一个xml文件中，简单方便。（注：适用于android5.0以前，毕竟5.0后增加了数据的安全性，没有了写入短信的权限。）
//创建XMl文件
public boolean xmlCreate() throws IOException {
String path = ESD_PATH + "/SMSBack";
File file = new File(path);
if (!file.exists()) {
file.mkdirs();
}
File file1 = new File(path, "message.xml");
try {
//建立输出流
fos = new FileOutputStream(file1);
serializer = Xml.newSerializer();
serializer.setOutput(fos, "UTF-8");
serializer.startDocument("UTF-8", true);
serializer.startTag("SMS", "sms");
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
Cursor cursor = null;
try {
// type=1是收件箱，==2是发件箱;read=0表示未读，read=1表示读过，seen=0表示未读，seen=1表示读过
String[] projection = new String[]{Telephony.Sms.ADDRESS, Telephony.Sms.PERSON, Telephony.Sms.DATE, Telephony.Sms.PROTOCOL, Telephony.Sms.READ,
Telephony.Sms.STATUS, Telephony.Sms.TYPE, Telephony.Sms.REPLY_PATH_PRESENT, Telephony.Sms.BODY, Telephony.Sms.LOCKED, Telephony.Sms.ERROR_CODE, Telephony.Sms.SEEN};
Uri uri = Uri.parse(SMS_URI_ALL);
cursor = resolver.query(uri, projection, null, null, "_id asc");
if (cursor.moveToFirst()) {
// String subject;
// String service_center;
String address;
String person;
String date;
String protocol;
String read;
String status;
String type;
String reply_path_present;
String body;
String locked;
String error_code;
String seen;
//生成子标签
do {
// 如果address == null，xml文件中是不会生成该属性的,为了保证解析时，属性能够根据索引一一对应，必须要保证所有的item标记的属性数量和顺序是一致的
address = cursor.getString(cursor.getColumnIndex(Telephony.Sms.ADDRESS));
if (address == null) {
address = "";
}
person = cursor.getString(cursor.getColumnIndex(Telephony.Sms.PERSON));
if (person == null) {
person = "";
}
date = cursor.getString(cursor.getColumnIndex(Telephony.Sms.DATE));
if (date == null) {
date = "";
}
protocol = cursor.getString(cursor.getColumnIndex(Telephony.Sms.PROTOCOL));
if (protocol == null) {// 为了便于xml解析
protocol = "";
}
read = cursor.getString(cursor.getColumnIndex(Telephony.Sms.READ));
if (read == null) {
read = "";
}
status = cursor.getString(cursor.getColumnIndex(Telephony.Sms.STATUS));
if (status == null) {
status = "";
}
type = cursor.getString(cursor.getColumnIndex(Telephony.Sms.TYPE));
if (type == null) {
type = "";
}
reply_path_present = cursor.getString(cursor.getColumnIndex(Telephony.Sms.REPLY_PATH_PRESENT));
if (reply_path_present == null) {// 为了便于XML解析
reply_path_present = "";
}
body = cursor.getString(cursor.getColumnIndex(Telephony.Sms.BODY));
if (body == null) {
body = "";
}
locked = cursor.getString(cursor.getColumnIndex(Telephony.Sms.LOCKED));
if (locked == null) {
locked = "";
}
error_code = cursor.getString(cursor.getColumnIndex(Telephony.Sms.ERROR_CODE));
if (error_code == null) {
error_code = "";
}
seen = cursor.getString(cursor.getColumnIndex(Telephony.Sms.SEEN));
if (seen == null) {
seen = "";
}
// 生成xml子标记
// 开始标记
serializer.startTag("SMS", "item");
// 加入属性
serializer.attribute("SMS", Telephony.Sms.ADDRESS,address);
serializer.attribute("SMS", Telephony.Sms.PERSON, person);
serializer.attribute("SMS", Telephony.Sms.DATE, date);
serializer.attribute("SMS", Telephony.Sms.PROTOCOL, protocol);
serializer.attribute("SMS", Telephony.Sms.READ, read);
serializer.attribute("SMS", Telephony.Sms.STATUS, status);
serializer.attribute("SMS", Telephony.Sms.TYPE, type);
serializer.attribute("SMS", Telephony.Sms.REPLY_PATH_PRESENT, reply_path_present);
try {
serializer.attribute("SMS", Telephony.Sms.BODY, body);
} catch (Exception e) {
Toast.makeText(context, body + "~不符合规格", Toast.LENGTH_SHORT).show();
}
serializer.attribute("SMS", Telephony.Sms.LOCKED, locked);
serializer.attribute("SMS", Telephony.Sms.ERROR_CODE, error_code);
serializer.attribute("SMS", Telephony.Sms.SEEN, seen);
// 结束标记
serializer.endTag("SMS", "item");
} while (cursor.moveToNext());
} else {
return false;
}
} catch (Exception e) {
e.printStackTrace();
Log.d("ERROR", e.toString());
} finally {
if (cursor != null) {
//回收资源
cursor.close();
}
}
serializer.endTag("SMS", "sms");
serializer.endDocument();
fos.flush();
fos.close();
return true;
}可查看xml是否数据完整，不完整是由于某个短信的格式不对的问题。
当然可以换一种格式，如以下方法，自行尝试。
serializer.startTag(namespace, name);
serializer.text(text);
serializer.endTag(namespace, name);//恢复短信
public void recoverSMS() {
smsItems = this.getXmlItems();
for (SmsItem smsItem : smsItems) {
Cursor cursor = resolver.query(Uri.parse(SMS_URI_ALL), new String[]{Telephony.Sms.DATE},
Telephony.Sms.DATE + "=?", new String[]{smsItem.getDate()}, null);
if (!cursor.moveToFirst()) {
ContentValues values = new ContentValues();
values.put(Telephony.Sms.ADDRESS, smsItem.getAddress());
values.put(Telephony.Sms.PERSON, smsItem.getPerson().equals("") ? null : smsItem.getPerson());
values.put(Telephony.Sms.DATE, smsItem.getDate());
values.put(Telephony.Sms.PROTOCOL, smsItem.getProtocol().equals("") ? null : smsItem.getProtocol());
values.put(Telephony.Sms.READ, smsItem.getRead());
values.put(Telephony.Sms.STATUS, smsItem.getStatus());
values.put(Telephony.Sms.TYPE, smsItem.getType());
values.put(Telephony.Sms.REPLY_PATH_PRESENT, smsItem.getReply_path_present());
values.put(Telephony.Sms.BODY, smsItem.getBody());
values.put(Telephony.Sms.LOCKED, smsItem.getLocked());
values.put(Telephony.Sms.ERROR_CODE, smsItem.getError_code());
values.put(Telephony.Sms.SEEN, smsItem.getSeen());
resolver.insert(Uri.parse(SMS_URI_ALL), values);
}
cursor.close();
}
Log.d(TAG, "getXmlItems complete");
}
//从XMl文件中获取到短信数据
public List<SmsItem> getXmlItems() {
SmsItem smsItem = null;
XmlPullParser pullParser = Xml.newPullParser();
String path = ESD_PATH + "/SMSBack/message.xml";
File file = new File(path);
//当文件不存在时
if (!file.exists()) {
Toast.makeText(context, "当前无备份文件", Toast.LENGTH_SHORT).show();
return null;
}
try {
FileInputStream fis = new FileInputStream(file);
pullParser.setInput(fis, "UTF-8");
int event = pullParser.getEventType();
while (event != XmlPullParser.END_DOCUMENT) {
switch (event) {
case XmlPullParser.START_DOCUMENT:
smsItems = new ArrayList<>();
break;
case XmlPullParser.START_TAG:
if ("item".equals(pullParser.getName())) {
smsItem = new SmsItem();
smsItem.setAddress(pullParser.getAttributeValue(0));
smsItem.setPerson(pullParser.getAttributeValue(1));
smsItem.setDate(pullParser.getAttributeValue(2));
smsItem.setProtocol(pullParser.getAttributeValue(3));
smsItem.setRead(pullParser.getAttributeValue(4));
smsItem.setStatus(pullParser.getAttributeValue(5));
smsItem.setType(pullParser.getAttributeValue(6));
smsItem.setReply_path_present(pullParser.getAttributeValue(7));
smsItem.setBody(pullParser.getAttributeValue(8));
smsItem.setLocked(pullParser.getAttributeValue(9));
smsItem.setError_code(pullParser.getAttributeValue(10));
smsItem.setSeen(pullParser.getAttributeValue(11));
}
break;
case XmlPullParser.END_TAG:
if ("item".equals(pullParser.getName())) {
smsItems.add(smsItem);
Log.d(TAG, smsItem.toString());
smsItem = null;
}
break;
}
event = pullParser.next();
}
} catch (Exception e) {
e.printStackTrace();
}
return smsItems;
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