本帖最后由 hiand 于 2011-9-7 13:07 編輯 代碼主要實(shí)現(xiàn)一個(gè)讀取彩信列表的功能,原本功能是點(diǎn)擊某條彩信記錄,顯示相關(guān)包括文本、圖片(該處并沒(méi)有對(duì)音頻附件處理)等,該處就把他們整合到一起了。 - public class SmsPage extends ListActivity{
private final String TAG="SmsPage";
private final Uri CONTENT_URI = Uri.parse("content://mms/inbox"); //查詢彩信收件箱
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);//彩信時(shí)間
int id = cursor.getInt(cursor.getColumnIndex("_id"));//彩信Id
String subject = cursor.getString(cursor.getColumnIndex("sub"));//彩信主題
Cursor cAdd =null;
Cursor cPhones=null;
Cursor cPeople=null;
Cursor cPart=null;
try {
//根據(jù)彩信id從addr表中查出發(fā)送人電話號(hào)碼,其中外鍵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);
//根據(jù)addr表中的電話號(hào)碼在phones表中查出PERSON_ID,外鍵PERSON_ID映射people表中的_id
if(cAdd.moveToFirst()){//該處會(huì)得到2條記錄,第一條記錄為發(fā)件人號(hào)碼,第二條為本機(jī)號(hào)碼
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){//根據(jù)phones表中的PERSON_ID查出 people 表中聯(lián)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;//如果通訊錄中存在,則以 ‘電話號(hào)碼/名字’ 形式顯示
}else{
name=number;//如果是陌生人直接顯示電話號(hào)碼
}
}
}else{
name=number;//如果是陌生人直接顯示電話號(hào)碼
}
}
//根據(jù)彩信ID查詢彩信的附件
String selectionPart = new String("mid="+id);//part表中的mid外鍵為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")){ //判斷附件類型
image.setImageBitmap(getMmsImage(values[0]);//該處只會(huì)顯示一張圖片,如果有需求的朋友可以根據(jù)自己的需求將ImageView換成Gallery,修改一下方法
image.setVisibility(View.VISIBLE);
}else if(values[3].equals("text/plain")){
/**該處詳細(xì)描述一下
*發(fā)現(xiàn)一個(gè)版本問(wèn)題,之前用的2.1版本的多臺(tái)手機(jī)測(cè)試通過(guò),結(jié)果用1.6的G2報(bào)異常
*經(jīng)過(guò)調(diào)試發(fā)現(xiàn),1.6版本part表中根本就沒(méi)有"text"列,也就是values[13],所以就
*報(bào)錯(cuò)了,好像在1.6版本(我只測(cè)過(guò)G2,嘿嘿),就算是文本信息也是以一個(gè)附件形
*式存在_date里面也就是values[12]里面,與圖片類似,但在2.1里面卻不是這樣存
*的,文本信息被存在了"text"這個(gè)字段中,且"_date"為null*/
if(values[12]!=null){//所以該處需判斷一下,如果_date為null,可直接設(shè)置內(nèi)容為"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"));//設(shè)置彩信主題的編碼格式
} 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){ //讀取文本附件
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();//在網(wǎng)上看到很多把InputStream轉(zhuǎn)成string的文章,沒(méi)有這關(guān)鍵的一句,幾乎千遍一律的復(fù)制粘貼,該處如果不加上這句的話是會(huì)內(nèi)存溢出的
}
}
}catch (IOException e) {
e.printStackTrace();
Log.v(TAG, "讀取附件異常"+e.getMessage());
}finally{
if (is != null){
try {
is.close();
}catch (IOException e){
Log.v(TAG, "讀取附件異常"+e.getMessage());
}
}
}
return sb.toString();
}
private Bitmap getMmsImage(String _id){ //讀取圖片附件
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, "讀取圖片異常"+e.getMessage());
}finally{
if (is != null){
try {
is.close();
}catch (IOException e){
Log.v(TAG, "讀取圖片異常"+e.getMessage());
}
}
}
return bitmap;
}
}
復(fù)制代碼 </div |