Android读取彩信附件

代码主要实现一个读取彩信列表的功能,原本功能是点击某条彩信记录,显示相关包括文本、图片(该处并没有对音频附件处理)等,该处就把他们整合到一起了。

public class SmsPage extends ListActivity{

private final String TAG="SmsPage";

private final Uri CONTENT_URI = Uri.parse("content://mms/inbox"); //查询彩信收件箱

private final Uri CONTENT_URI_PART = Uri.parse("content://mms/part"); //彩信附件表

public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.smslist);
Cursor cursor
= getContentResolver().query(CONTENT_URI, null, null,null, null);
if(cursor.getCount()>0){
MyAdapter adapter
= new MyAdapter(this,R.layout.smsitem,cursor,new String[]{},new int[]{});
setListAdapter(adapter);
}
}

public class MyAdapter extends SimpleCursorAdapter{
private String name="";
public MyAdapter(Context context, int layout, Cursor c, String[] from,
int[] to) {
super(context, layout, c, from, to);
}

@Override
public void bindView(View view, Context context, Cursor cursor) {
TextView address
= (TextView)view.findViewById(R.id.sms_address);
TextView body
= (TextView)view.findViewById(R.id.sms_body);
TextView date
= (TextView)view.findViewById(R.id.sms_date);
TextView sub
= (TextView)view.findViewById(R.id.sms_sub);
ImageView image
= (ImageView)view.findViewById(R.id.sms_image);

SimpleDateFormat format
= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date time
=new Date(cursor.getLong(cursor.getColumnIndex("date"))*1000);//彩信时间
int id = cursor.getInt(cursor.getColumnIndex("_id"));//彩信Id
String subject = cursor.getString(cursor.getColumnIndex("sub"));//彩信主题
Cursor cAdd =null;
Cursor cPhones
=null;
Cursor cPeople
=null;
Cursor cPart
=null;
try {
//根据彩信id从addr表中查出发送人电话号码,其中外键msg_id映射pdu表的id;
String selectionAdd = new String("msg_id=" + id + ");
Uri uriAddr = Uri.parse("content://mms/" + id + "/addr");
cAdd
= getContentResolver().query(uriAddr, null, selectionAdd, null, null);

//根据addr表中的电话号码在phones表中查出PERSON_ID,外键PERSON_ID映射people表中的_id
if(cAdd.moveToFirst()){//该处会得到2条记录,第一条记录为发件人号码,第二条为本机号码
String number= cAdd.getString(cAdd.getColumnIndex("address"));
cPhones
= getContentResolver().query(Contacts.Phones.CONTENT_URI, new String[]{Contacts.Phones.PERSON_ID},Contacts.Phones.NUMBER +"=?",new String[]{number}, null);
if(cPhones.getCount()>0){//根据phones表中的PERSON_ID查出 people 表中联系人的名字
while (cPhones.moveToNext()) {
String pId
= cPhones.getString(cPhones.getColumnIndex(Contacts.Phones.PERSON_ID));
Uri uriPeo
= Uri.parse(Contacts.People.CONTENT_URI+"/"+pId);
cPeople
= getContentResolver().query(uriPeo, null,null,null, null);
if(cPeople.getCount()>0){
String str
="";
while (cPeople.moveToNext()) {
if(str == ""){
str
= cPeople.getString(cPeople.getColumnIndex(Contacts.People.DISPLAY_NAME));
}
else{
str
+= ","+cPeople.getString(cPeople.getColumnIndex(Contacts.People.DISPLAY_NAME));
}
}
name
=number+"/"+str;//如果通讯录中存在,则以 ‘电话号码/名字’ 形式显示
}else{
name
=number;//如果是陌生人直接显示电话号码
}
}
}
else{
name
=number;//如果是陌生人直接显示电话号码
}
}

//根据彩信ID查询彩信的附件
String selectionPart = new String("mid="+id);//part表中的mid外键为pdu表中的_id
cPart = getContentResolver().query(CONTENT_URI_PART, null,selectionPart,null, null);
String bodyStr
="";
String[] coloumns
= null;
String[] values
= null;
while(cPart.moveToNext()){
coloumns
= cPart.getColumnNames();
if(values == null)
values
= new String[coloumns.length];
for(int i=0; i< cPart.getColumnCount(); i++){
values[i]
= cPart.getString(i);
}
if(values[3].equals("image/jpeg") || values[3].equals("image/bmp") || values[3].equals("image/gif") || values[3].equals("image/jpg") || values[3].equals("image/png")){ //判断附件类型
image.setImageBitmap(getMmsImage(values[0]);//该处只会显示一张图片,如果有需求的朋友可以根据自己的需求将ImageView换成Gallery,修改一下方法
image.setVisibility(View.VISIBLE);
}
else if(values[3].equals("text/plain")){
/**该处详细描述一下
*发现一个版本问题,之前用的2.1版本的多台手机测试通过,结果用1.6的G2报异常
*经过调试发现,1.6版本part表中根本就没有"text"列,也就是values[13],所以就
*报错了,好像在1.6版本(我只测过G2,嘿嘿),就算是文本信息也是以一个附件形
*式存在_date里面也就是values[12]里面,与图片类似,但在2.1里面却不是这样存
*的,文本信息被存在了"text"这个字段中,且"_date"为null
*/

if(values[12]!=null){//所以该处需判断一下,如果_date为null,可直接设置内容为"text"
bodyStr=getMmsText(values[0]);
}
else{
bodyStr
= values[13];
}
}
}
if(!"".equals(subject) && subject != null){
try {
sub.setText(
new String(subject.getBytes("iso-8859-1"),"UTF-8"));//设置彩信主题的编码格式
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
if(!"".equals(bodyStr)){
body.setText(bodyStr);
}
address.setText(name);
date.setText(format.format(time));
}
catch (RuntimeException e) {
Log.e(TAG, e.getMessage());
}
finally{
if(cAdd != null){
cAdd.close();
}
if(cPart != null){
cPart.close();
}
if(cPeople != null){
cPeople.close();
}
if(cPhones != null){
cPhones.close();
}
}
super.bindView(view, context, cursor);
}
}
private String getMmsText(String _id){ //读取文本附件
Uri partURI = Uri.parse("content://mms/part/" + _id );
InputStream is
= null;
StringBuilder sb
= new StringBuilder();
try {
is
= getContentResolver().openInputStream(partURI);
if(is!=null){
BufferedReader reader
= new BufferedReader(new InputStreamReader(is,"UTF-8"));
String temp
= reader.readLine();
while (temp != null) {
sb.append(temp);
temp
=reader.readLine();//在网上看到很多把InputStream转成string的文章,没有这关键的一句,几乎千遍一律的复制粘贴,该处如果不加上这句的话是会内存溢出的
}
}
}
catch (IOException e) {
e.printStackTrace();
Log.v(TAG,
"读取附件异常"+e.getMessage());
}
finally{
if (is != null){
try {
is.close();
}
catch (IOException e){
Log.v(TAG,
"读取附件异常"+e.getMessage());
}
}
}
return sb.toString();
}
private Bitmap getMmsImage(String _id){ //读取图片附件
Uri partURI = Uri.parse("content://mms/part/" + _id );
//ByteArrayOutputStream baos
= new ByteArrayOutputStream();
InputStream is
= null;
Bitmap bitmap
=null;
try {
is
= getContentResolver().openInputStream(partURI);
//
byte[] buffer = new byte[256];
//int len = -1;
//while ((len = is.read(buffer)) != -1) {
// baos.write(buffer, 0, len);
//}
//bitmap = BitmapFactory.decodeByteArray(baos.toByteArray(), 0
, baos.toByteArray().length);
   bitmap = BitmapFactory.decodeStream(is);
     }catch (IOException e) {
e.printStackTrace();
Log.v(TAG,
"读取图片异常"+e.getMessage());
}
finally{
if (is != null){
try {
is.close();
}
catch (IOException e){
Log.v(TAG,
"读取图片异常"+e.getMessage());
}
}
}
return bitmap;
}
}

 

posted @ 2011-04-27 16:01  彼岸-夕  阅读(4528)  评论(6编辑  收藏  举报