Develop Reference

how to get History from sbrowser?

I want to get History of sbrowser? I try used "com.sec.android.app.sbrowser.browser/history" but it is not working.
final Uri uri = Uri.parse("content://com.sec.android.app.sbrowser.browser/history");
final Cursor c = getContentResolver().query(uri, null, null, null, null);
if (c!=null && c.moveToFirst()) {
do {
System.out.println(c.getString(c.getColumnIndex("URL")));
} while(c.moveToNext());
}

I had a similar issue and I found that the correct URI is
content://com.sec.android.app.sbrowser.browser/bookmarks
Check out this post Android Browser.BOOKMARKS_URI does not work on all devices. How to find out the correct uri for a given device?

The other way to get the history
Cursor mycur = managedQuery(Browser.BOOKMARKS_URI, Browser.HISTORY_PROJECTION, null,
null, null);
int count = mycur.getCount();
mycur.moveToFirst();
if(mycur.moveToFirst() && count>0)
{
while(count>0)
{
Log.e("title",mycur.getString(Browser.HISTORY_PROJECTION_URL_INDEX));
mycur.moveToNext();
}
}
You can check below also some other answers
Get browser history and search result in android

Update Contact Data by Data ID

My application uses the Contacts ContentProvider to store some of its data. When I load a contact into memory, I want to save its ID (so that I know how to save changes later), and the ID of all data fields it is using (so they can be directly updated). Here is some of my code:
Uri entityUri = Uri.withAppendedPath(
ContentUris.withAppendedId(RawContacts.CONTENT_URI, id),
Entity.CONTENT_DIRECTORY);
Cursor resultData = context.getContentResolver().query(
entityUri,
new String[]{RawContacts.SOURCE_ID, Entity.DATA_ID, Entity.MIMETYPE, Entity.DATA1},
null, null, null);
resultData.moveToFirst();
this.id = id;
while (resultData.isAfterLast() == false) {
this.source_id = resultData.getInt(0);
if (!resultData.isNull(1)) {
if (resultData.getString(2).equals(Fields.DISPLAY_NAME)) {
this.display_name = resultData.getString(3);
this.display_name_id = resultData.getInt(1);
}
}
resultData.moveToNext();
}
resultData.close();
return this;
That queries the ContentProvider and gets the DISPLAY_NAME field from the data. The ID of the data record is stored in the display_name_id variable. It comes out as 4612 when I run it on my device.
I tried saving it, but it does not update as expected. In order to debug, I added a query that tries to find the correct data table record.
Cursor c = context.getContentResolver().query(ContactsContract.Data.CONTENT_URI,
new String[] {ContactsContract.Data._ID, CommonDataKinds.StructuredName.DISPLAY_NAME},
ContactsContract.Data._ID + "=?",
new String[] {String.valueOf(this.display_name_id)}, null);
However, this cursor comes back as having a length of 0. How can this be? Why is the ID incorrect?

I tried locally and it works for me, here's my code slightly adapted from yours:
public void testContacts(final #Nonnull Context context, final int rawContactId, final #Nonnull String expectedDisplayName) {
Uri entityUri = Uri.withAppendedPath(
ContentUris.withAppendedId(ContactsContract.RawContacts.CONTENT_URI, rawContactId),
ContactsContract.RawContacts.Entity.CONTENT_DIRECTORY);
Cursor resultData = context.getContentResolver().query(
entityUri,
new String[]{
ContactsContract.RawContacts.SOURCE_ID,
ContactsContract.RawContacts.Entity.DATA_ID,
ContactsContract.RawContacts.Entity.MIMETYPE,
ContactsContract.RawContacts.Entity.DATA1
},
null, null, null);
int displayNameId = -1;
try {
final int columnIndexDataId = resultData.getColumnIndex(ContactsContract.RawContacts.Entity.DATA_ID);
final int columnIndexMimetype = resultData.getColumnIndex(ContactsContract.RawContacts.Entity.MIMETYPE);
final int columnIndexData = resultData.getColumnIndex(ContactsContract.RawContacts.Entity.DATA1);
while (resultData.moveToNext()) {
if (!resultData.isNull(columnIndexDataId)) {
if (ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE.equals(resultData.getString(columnIndexMimetype)) &&
expectedDisplayName.equals(resultData.getString(columnIndexData))) {
displayNameId = resultData.getInt(1);
break;
}
}
}
} finally {
resultData.close();
}
String reLookedUpDisplayName = null;
if (displayNameId != -1) {
Cursor reLookupCursor = context.getContentResolver().query(
ContactsContract.Data.CONTENT_URI,
new String[] {
ContactsContract.Data._ID,
ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME
},
ContactsContract.Data._ID + "=?",
new String[] {String.valueOf(displayNameId)},
null);
try {
final int columnIndexId = reLookupCursor.getColumnIndex(ContactsContract.Data._ID);
final int columnIndexDisplayName = reLookupCursor.getColumnIndex(ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME);
while (reLookupCursor.moveToNext()) {
reLookedUpDisplayName = reLookupCursor.getString(columnIndexDisplayName);
}
} finally {
reLookupCursor.close();
}
}
Toast.makeText(
context,
reLookedUpDisplayName != null ? "Found re-looked up name: " + reLookedUpDisplayName : "Didn't find name re-looking it up",
Toast.LENGTH_LONG)
.show();
}
There's no big difference from your code, so compare or try to replace bits of it to see where you have a problem. Make sure you use a fresh Cursor for each query, and close it correctly afterwards (in a finally clause).
Another thing, make sure that if (resultData.getString(2).equals(Fields.DISPLAY_NAME)) is really what you're wanting to do (it compares the entry mime type with Fields.DISPLAY_NAME), but since you're saying you get the data ID correctly this shouldn't be the problem.

Trying to scan my SQLite Database. Android

I have a save button that should basically create a new entry in my SQLite database IF there isn't already one with the same 'name and number'(both are stored as strings).
If there is already an entry with the same name and number, it should make a popup asking if they want to overwrite.
What actually happens is it creates a new entry whether or not the entry already exists.
Code that runs when you click save:
final String thename=TeamName.getText().toString()
final String thenum=TeamNum.getText().toString();
if ((thename.length()!=0) && (thenum.length()!=0)){
ScoutingFormData info1 = new ScoutingFormData(this);
info1.open();
final long returnedId=info1.scanFor(thename,thenum);
if (returnedId==-1){
info1.createEntry(thename,thenum);
}
else
{
final Dialog overw=new Dialog(this);
....//The code that goes here is unimportant to my question so I'm hiding it.
overw.show();
}
info1.close();
}
Code in ScoutingFormData.java:
public long scanFor(String thename, String thenum) {
String[] columns=new String[]{KEY_ROWID,KEY_NAME,KEY_NUM};
Cursor c = ourDatabase.query(DATABASE_TABLE, columns, null, null, null, null, null);
int iID = c.getColumnIndex(KEY_ROWID);
int iName = c.getColumnIndex(KEY_NAME);
int iNum = c.getColumnIndex(KEY_NUM);
for (c.moveToFirst(); !c.isAfterLast();c.moveToNext()){
if ((c.getString(iName)==thename) && (c.getString(iNum)==thenum)){
return Long.parseLong(c.getString(iID));
}
}
return -1;
}
I don't see how it could possibly return -1 if an entry already exists with the same name+number.

Use equals to compare String values.

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;
}

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.