Develop Reference

How to identify a local phone contact and an SYNC phone contact in android?

Can anybody guide me to find the solution for the following problem.
I have to identify whether the phone contact saved in locally or from Email ?(programatically)
i have read fromgoogle doc that ContactsContract.Groups, which contains information about raw contact groups such as Gmail contact groups. The current API does not support the notion of groups spanning multiple accounts.
Based on that i have tried the following code.
StringBuffer output = new StringBuffer();
final String[] GROUP_PROJECTION = new String[] {
ContactsContract.Groups._ID,
ContactsContract.Groups.TITLE,
ContactsContract.Groups.SUMMARY_WITH_PHONES
};
Cursor c = getContentResolver().query(
ContactsContract.Groups.CONTENT_URI, GROUP_PROJECTION, null,
null, ContactsContract.Groups.TITLE);
int IDX_ID = c.getColumnIndex(ContactsContract.Groups._ID);
int IDX_TITLE = c.getColumnIndex(ContactsContract.Groups.TITLE);
output.append("title"+IDX_TITLE+"\n");
Map<String,GroupInfo> m = new HashMap<String, GroupInfo>();
while (c.moveToNext()) {
output.append("test...\n");
GroupInfo g = new GroupInfo();
g.id = c.getString(IDX_ID);
g.title = c.getString(IDX_TITLE);
output.append("title"+c.getString(IDX_TITLE)+"\n");
int users = c.getInt(c.getColumnIndex(ContactsContract.Groups.SUMMARY_WITH_PHONES));
if (users>0) {
// group with duplicate name?
GroupInfo g2 = m.get(g.title);
if (g2==null) {
m.put(g.title, g);
output.append("title"+g.title+"\n");
groups.add(g);
} else {
g2.id+=","+g.id;
}
}
}
outputText.setText(output);
c.close();
but no hope.

I am posting this answer for future use. We can differentiate the local phone contacts and the sync contacts by using the field called RawContacts.SOURCE_ID
It is described here
SOURCE_ID
read/write
String that uniquely identifies this row to its source account. Typically it is set at the time the raw contact is inserted and never changed afterwards. The one notable exception is a new raw contact: it will have an account name and type (and possibly a data set), but no source id. This indicates to the sync adapter that a new contact needs to be created server-side and its ID stored in the corresponding SOURCE_ID field on the phone.
The sample code is follows, it gives the id for sync contacts and null for others.
private void testContact() {
StringBuffer output = new StringBuffer();
ContentResolver resolver = getContentResolver();
Cursor contacts = resolver.query(Contacts.CONTENT_URI, null,
Contacts.HAS_PHONE_NUMBER + " != 0", null, Contacts._ID
+ " ASC");
Cursor data = resolver.query(Data.CONTENT_URI, null, Data.MIMETYPE
+ "=? OR " + Data.MIMETYPE + "=?", new String[]{
Email.CONTENT_ITEM_TYPE, Phone.CONTENT_ITEM_TYPE},
Data.CONTACT_ID + " ASC");
int idIndex = contacts.getColumnIndexOrThrow(Contacts._ID);
int nameIndex = contacts.getColumnIndexOrThrow(Contacts.DISPLAY_NAME);
int cidIndex = data.getColumnIndexOrThrow(Data.CONTACT_ID);
int data1Index = data.getColumnIndexOrThrow(Data.DATA1);
boolean hasData = data.moveToNext();
while (contacts.moveToNext()) {
long id = contacts.getLong(idIndex);
Uri rawContactUri =
ContentUris.withAppendedId(RawContacts.CONTENT_URI, id);
Uri entityUri =
Uri.withAppendedPath(rawContactUri, Entity.CONTENT_DIRECTORY);
Cursor c =
getContentResolver().query(
entityUri,
new String[] {
RawContacts.ACCOUNT_NAME,
RawContacts.SOURCE_ID, Entity.DATA_ID, Entity.MIMETYPE, Entity.DATA1},
null, null, null);
try {
while (c.moveToNext()) {
String sourceId = c.getString(0);
if (!c.isNull(1)) {
String source_id = c.getString(1);
try {
output.append(c.getString(4)+sourceId+" "+source_id+"\n");
//output.append(datas+ "Sync1 "+ c.getString(4)+" Sync2 "+ c.getString(5)+" Sync3"+ c.getString(6)+" Sync4 "+ c.getString(7)+"\n");
} catch (Exception e) {
e.printStackTrace();
}
//decide here based on mimeType, see comment later
}
}
} finally {
c.close();
}
}
outputText.setText(output);
}

Have a read through this and see if ACCOUNT_TYPE might be able to help you

Android - MediaStore.Video.query() is returning null

I'm trying to retrieve the metadata from a video file (title, language, artist) using the method MediaStore.Video.query(). However, the method is always returning null. The code is bellow:
String[] columns = {
MediaStore.Video.VideoColumns._ID,
MediaStore.Video.VideoColumns.TITLE,
MediaStore.Video.VideoColumns.ARTIST
};
Cursor cursor = MediaStore.Video.query(getApplicationContext().getContentResolver(), videoUri,columns);
if (cursor != null) {
cursor.moveToNext();
}
String title = cursor.getString(cursor.getColumnIndex(MediaStore.Video.VideoColumns.TITLE));
Any suggestion about how to return video metadata using android?
==Update
As I searched in many places, I tried one solution using CursorLoader. However, the method loadInBackground() from CursorLoader is also returning null. The code is showed bellow:
String[] columns = {
MediaStore.Video.VideoColumns.TITLE
};
Uri videoUri = Uri.parse("content://mnt/sdcard/Movies/landscapes.mp4");
CursorLoader loader = new CursorLoader(getBaseContext(), videoUri, columns, null, null, null);
Cursor cursor = loader.loadInBackground();
cursor.moveToFirst();
String title = cursor.getString(cursor.getColumnIndex(MediaStore.Video.VideoColumns.TITLE));

Uri.parse("content://mnt/sdcard/Movies/landscapes.mp4") is not an Uri for MediaStore. It would try to find a ContentProvider for authority mnt which does not exist.
MediaStore can handle only content://media/... Uris which you should get exclusively via MediaStore, not by using Uri.parse().
In your case use the following for example
Uri uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
String[] columns = {
MediaStore.Video.VideoColumns._ID,
MediaStore.Video.VideoColumns.TITLE,
MediaStore.Video.VideoColumns.ARTIST
};
String selection = MediaStore.Video.VideoColumns.DATA + "=?";
String selectionArgs[] = { "/mnt/sdcard/Movies/landscapes.mp4" };
Cursor cursor = context.getContentResolver().query(uri, columns, selection, selectionArgs, null);
The MediaStore.Video.VideoColumns.DATA field holds the path to the videos and you search for a certain video this way. At least for now, future versions of Android may change that.
Your second example is using CursorLoader the wrong way. If you call loader.loadInBackground() yourself, you load the data in foreground. See e.g. http://mobile.tutsplus.com/tutorials/android/android-sdk_loading-data_cursorloader/
The next thing you do is
Cursor cursor = getCursor();
cursor.moveToFirst();
String title = cursor.getString(/* some index */);
This will lead to a CursorIndexOutOfBoundsException if your cursor has 0 rows and cursor.moveToFirst() failed because there is no first row. The cursor stays before the first row (at -1) and that index does not exist. That would mean in your case that the file was not found in the database.
To prevent that use the return value of moveToFirst - it will only be true if there is a first row.
Cursor cursor = getCursor(); // from somewhere
if (cursor.moveToFirst()) {
String title = cursor.getString(/* some index */);
}
A more complete example including checks for null and closing the cursor in all cases
Cursor cursor = getCursor(); // from somewhere
String title = "not found";
if (cursor != null) {
if (cursor.moveToFirst()) {
title = cursor.getString(/* some index */);
}
cursor.close();
}
I guess the file you try to find is either not indexed in the database (rebooting forces the indexer to run again) or the path is wrong.
Or the path you use is actually a symlink in which case MediaStore might use a different path.
Use this to get rid of symlinks
String path = "/mnt/sdcard/Movies/landscapes.mp4";
try {
path = new File(path).getCanonicalPath();
} catch (IOException e) {
e.printStackTrace();
}
Yes, I tested now and it is throwing IndexOutOfBoundsException. When I'm using cursor.getColumnCount() it returns 1
cursor.getColumnCount() is the column count, not the row count. It should always be the same as the number of columns you requested in columns. You need to check cursor.getCount() if you want to check the row count.
Try dumping all the videos known to MediaStore into logcat in case it does not show as expected.
public static void dumpVideos(Context context) {
Uri uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
String[] projection = { MediaStore.Video.VideoColumns.DATA };
Cursor c = context.getContentResolver().query(uri, projection, null, null, null);
int vidsCount = 0;
if (c != null) {
vidsCount = c.getCount();
while (c.moveToNext()) {
Log.d("VIDEO", c.getString(0));
}
c.close();
}
Log.d("VIDEO", "Total count of videos: " + vidsCount);
}

I updated your code, it works, just check it
public static void dumpVideos(Context context) {
Uri uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
String[] projection = { MediaStore.Video.VideoColumns.DATA };
Cursor c = context.getContentResolver().query(uri, projection, null, null, null);
int vidsCount = 0;
if (c != null) {
c.moveToFirst();
vidsCount = c.getCount();
do {
Log.d("VIDEO", c.getString(0));
}while (c.moveToNext());
c.close();
}
Log.d("VIDEO", "Total count of videos: " + vidsCount);
}

How to Create a Playlist

I am trying to create an app which simply offers an edittext and imagebutton. If the butten gets clicked, the idea is that an album is added to the Playlist, named in the edittext box. Albums should be selected randomly. Goes without saying that the album tracks should be in the correct order.
I can add more functionality later eg. save, overwrite, delete etc.
I have the interface but am struggling with the code. I sort of get the concept of ContentProviders.
so the code needs to:
access the Playlists, which I believe is achieved by using MediaStore.Audio.Playlists
access the Albums, which I believe is achieved by using MediaStore.Audio.Albums
add to the Playlist
I have the following code (most bits obtained from this site. Thanks btw) to access the Playlist but it crashes with a Null Exception error.
public void checkforplaylists()
{
//Get a cursor over all playlists.
final ContentResolver resolver= MediaProvider.mContentResolver;
final Uri uri=MediaStore.Audio.Playlists.INTERNAL_CONTENT_URI;
final String id=MediaStore.Audio.Playlists._ID;
final String name=MediaStore.Audio.Playlists.NAME;
final String[]columns={id,name};
final Cursor playlists= resolver.query(uri, columns, null, null, null);
if(playlists==null)
{
Log.e(TAG,"Found no playlists.");
return;
}
return;
}
Anyone who can help?

I think you mean NullPointerException, which means one of your assignments is null and then you try to access a member of the object you intended it to be. Most likely it is resolver, but to be sure you need the line number reported and/or to step through that with a debugger.

This works. When using the ContentResolver, the Context (this) is required.
public void checkforplaylists(Context context)
{
ContentResolver cr = context.getContentResolver();
final Uri uri=MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI;
final String id=MediaStore.Audio.Playlists._ID;
final String name=MediaStore.Audio.Playlists.NAME;
final String[]columns={id,name};
final Cursor playlists= cr.query(uri, columns, null, null, null);
if(playlists==null)
{
Log.e(TAG,"Found no playlists.");
return;
}
Log.e(TAG,"Found playlists.");
return;
}

use this code, will work
public boolean addPlaylist(String pname) {
Uri playlists = MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI;
Cursor c = resolver.query(playlists, new String[] { "*" }, null, null,
null);
long playlistId = 0;
c.moveToFirst();
do {
String plname = c.getString(c
.getColumnIndex(MediaStore.Audio.Playlists.NAME));
if (plname.equalsIgnoreCase(pname)) {
playlistId = c.getLong(c
.getColumnIndex(MediaStore.Audio.Playlists._ID));
break;
}
} while (c.moveToNext());
c.close();
if (playlistId != 0) {
Uri deleteUri = ContentUris.withAppendedId(playlists, playlistId);
Log.d(TAG, "REMOVING Existing Playlist: " + playlistId);
// delete the playlist
resolver.delete(deleteUri, null, null);
}
Log.d(TAG, "CREATING PLAYLIST: " + pname);
ContentValues v1 = new ContentValues();
v1.put(MediaStore.Audio.Playlists.NAME, pname);
v1.put(MediaStore.Audio.Playlists.DATE_MODIFIED,
System.currentTimeMillis());
Uri newpl = resolver.insert(playlists, v1);
Log.d(TAG, "Added PlayLIst: " + newpl);
flag=true;
return flag;
}

How can I get an outgoing mms's address in android

I've spent 5 days trying out different things and lots of googling with no luck
I have a broadcast receiver to monitor and backup incoming mms & sms.
The sms - outgoing and incoming is easy no problem. MMS however...
I have a broadcast receiver for incoming MMS, no problem there.
For outgoing MMS however, I use a content observer directed towards content://mms
heres the part registering the content observer from the service class
mo = new MMSObserver(new Handler(),getApplicationContext());
try{
getContentResolver().unregisterContentObserver(mo);
}
finally{
getContentResolver().registerContentObserver(Uri.parse("content://mms"), true, mo);
}
This is the onchange part in the above content observer
public void onChange(boolean bSelfChange)
{
super.onChange(bSelfChange);
Log.i(TAG,"MMSObserver onChange");
ContentResolver contentResolver = context.getContentResolver();
Uri uri = Uri.parse("content://mms");
Cursor cur = contentResolver.quert("content://mms",null,null,null,null)
if(cur.moveToNext()){
String id = cur.getString(cur.getColumnIndex("_id"));
String date = cur.getString (cur.getColumnIndex ("date"));
String address = getAddress(id);
}
}
private static String getAddress(String id){
String selectionAdd = new String("msg_id=" + id);
String uriStr = MessageFormat.format("content://mms/{0}/addr", id);
Uri uriAddress = Uri.parse(uriStr);
Cursor cAdd = context.getContentResolver().query(uriAddress, null,
selectionAdd, null, null);
String name = null;
if (cAdd.moveToFirst()) {
do {
String number = cAdd.getString(cAdd.getColumnIndex("address"));
if (number != null) {
try {
Long.parseLong(number.replace("-", ""));
name = number;
} catch (NumberFormatException nfe) {
if (name == null) {
name = number;
}
}
}
} while (cAdd.moveToNext());
}
if (cAdd != null) {
cAdd.close();
}
return name;
}
The problem is the address column always returns "insert-address-token" for outgoing mms.
Is there any possible way to get the number the mms is going to?
Also I noticed that the content observer is triggered when the message is in draft form not when it is sent or pending. since depending on those uris is generally a bad idea since they're not part of the sdk, i switched to a different method. cataloging all sms & mms messages and storing their _id columns, and just syncing them with the backup. However my problem still remains.
MMS address column is always "insert-address-token"
Any suggestions?

You may want to try something like this:
Uri uri = Uri.parse("content://mms-sms/conversations/" + mThreadId);
String[] projection = new String[] {
"body", "person", "sub", "subject", "retr_st", "type", "date", "ct_cls", "sub_cs", "_id", "read", "ct_l", "st", "msg_box", "reply_path_present", "m_cls", "read_status", "ct_t", "status", "retr_txt_cs", "d_rpt", "error_code", "m_id", "date_sent", "m_type", "v", "exp", "pri", "service_center", "address", "rr", "rpt_a", "resp_txt", "locked", "resp_st", "m_size"
};
String sortOrder = "normalized_date";
Cursor mCursor = getActivity().getContentResolver().query(uri, projection, null, null, sortOrder);
String messageAddress;
int type;
while (mCursor.moveToNext()) {
String messageId = mCursor.getString(mCursor.getColumnIndex("_id"));
Uri.Builder builder = Uri.parse("content://mms").buildUpon();
builder.appendPath(messageId).appendPath("addr");
Cursor c = mContext.getContentResolver().query(builder.build(), new String[] {
"*"
}, null, null, null);
while (c.moveToNext()) {
messageAddress = c.getString(c.getColumnIndex("address"));
if (!messageAddress.equals("insert-address-token")) {
type = c.getInt(c.getColumnIndex("type"));
c.moveToLast();
}
}
c.close();
}
I am not actually calling the mCursor's moveToNext() method in my code but instead I am implementing this logic in the getView() method of a SimpleCursorAdapter.

Android: Accessing and querying properly using Raw Contact Id

So my app is attempting to integrate a sync adapter to the android native contact manager. This is all running smoothly except once a contact is synced, I am unable to update it. Details on this particular problem can be found here: Android: Content resolver query returning 0 rows when it ought not to But I can sum it up simply by just saying my content resolver query is returning 0 values because I am querying the wrong URI, I believe.
When I write the raw contact id to the phone, I do it with the following code:
public ContactSyncOperations(Context context, String username,
String accountName, BatchOperationForSync batchOperation) {
this(context, batchOperation);
mBackReference = mBatchOperation.size();
mIsNewContact = true;
mValues.put(RawContacts.SOURCE_ID, username);
mValues.put(RawContacts.ACCOUNT_TYPE, "com.tagapp.android");
mValues.put(RawContacts.ACCOUNT_NAME, accountName);
mBuilder = newInsertCpo(RawContacts.CONTENT_URI, true).withValues(mValues);
mBatchOperation.add(mBuilder.build());
}
This constructor method is called when you are adding a new contact to the sync list:
private static void addContact(Context context, String account, Contact contact, BatchOperationForSync batchOperation) {
ContactSyncOperations contactOp = ContactSyncOperations.createNewContact(context, contact.getUsername(), account, batchOperation);//constructor called # this line
contactOp.addName(contact.getFirstName(), contact.getLastName());
contactOp.addEmail(contact.getEmail());
contactOp.addPhone(contact.getPhoneNumber(), Phone.TYPE_MOBILE);
contactOp.addPhone(contact.getHomePhone(), Phone.TYPE_HOME);
contactOp.addPhone(contact.getWorkPhone(), Phone.TYPE_WORK);
contactOp.addProfileAction(contact.getUsername());
Log.e("Adding contact", "Via sync");
}
As you can see in the constructor, I am calling a method called newInsertCpo, which can be viewed here:
private void addInsertOp() {
if(!mIsNewContact) {
mValues.put(Phone.RAW_CONTACT_ID, mRawContactId);
}
mBuilder = newInsertCpo(addCallerIsSyncAdapterParameter(Data.CONTENT_URI), mYield);
mBuilder.withValues(mValues);
if(mIsNewContact) {
mBuilder.withValueBackReference(Data.RAW_CONTACT_ID, mBackReference);
}
mYield = false;
mBatchOperation.add(mBuilder.build());
}
Now that you can see the code, let me explain the problem. When I am creating and writing the raw contact id, I am doing so to RawContacts.CONTENT_URI:
mBuilder = newInsertCpo(RawContacts.CONTENT_URI, true).withValues(mValues);
However, when I query the uri, I am querying as so:
Cursor cursor = resolver.query(Data.CONTENT_URI, DataQuery.PROJECTION, DataQuery.SELECTION, new String[] {String.valueOf(rawContactId)}, null);
From Data.CONTENT_URI. I believe this is where my problem is occurring. I used the sample code from Android's official dev site and tailored it for my own uses, but this part is pretty true to the example. Yet it is not working. My lead is what I said, I'm writing to one Uri and querying another. But I've attempted to change the query to RawContacts.CONTENT_URI (which caused an exception), and also changing the Uri I write to Data.CONTENT_URI, which also causes an exception. What's even more confusing is that I get raw contact ids from Data.CONTENT_URI when I do my lookupRawContactId method:
private static long lookupRawContact(ContentResolver resolver, String username) {
Log.e("Looking up Raw Contact", username);
long authorId = 0;
Cursor cursor = resolver.query(Data.CONTENT_URI, UserIdQuery.PROJECTION, UserIdQuery.SELECTION, new String[] {username}, null);
try {
if(cursor != null && cursor.moveToFirst()) {
authorId = cursor.getLong(UserIdQuery.COLUMN_ID);
}
} finally {
if(cursor != null) {
cursor.close();
}
}
return authorId;
}
So yea, if I get a cursor returning rawcontactId, why would I get 0 values querying that same Uri with that same rawcontactId i was returned? It doesn't make any sense! Does anyone have any insight? Thanks all.

The lookupRawContactId method should look like this instead:
private static long lookupRawContact(ContentResolver resolver, String username) {
Log.e("Looking up Raw Contact", username);
long authorId = 0;
Cursor cursor = resolver.query(RawContacts.CONTENT_URI, UserIdQuery.PROJECTION, UserIdQuery.SELECTION, new String[] {username}, null);
try {
if(cursor != null && cursor.moveToFirst()) {
authorId = cursor.getLong(UserIdQuery.COLUMN_ID);
}
} finally {
if(cursor != null) {
cursor.close();
}
}
return authorId;
}
Notice the query is searching RawContacts.CONTENT_URI instead.