I am creating SQLite Database for my Mobile App. The App Database will store copy of contacts that are stored in Android Phones. Below code is used to copy contacts from Database. My problem is that every time App is opened , it copies entire data into SQLite Database that has resulted lot of duplicate entry. If I try to check existence of entries before copying the records into SQLite database then every time when App is launched, it will be checking of duplicity resulting overloading on application.
In order to solve the problem I thought if any response comes after successful addition of contact by user, then we can use this response to add contacts in SQLite database and then we can take out Database copying on launch of App. As I am new into the world of Android, requesting you to advice best way to tackle this problem.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button prd = (Button) findViewById(R.id.duct);
prd.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
load_contacts();
display_cotacts();
Log.i("Activity Main", "Completed Displaying List");
}
});
}
private void load_contacts(){
openDB();
ContentResolver cr = getContentResolver();
Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI,null,null,null,null);
//String[] from = {ContactsContract.Phone.DISPLAY_NAME,ContactsContract.CommonDataKinds.Phone.NUMBER,ContactsContract.CommonDataKinds.Phone_ID};
if(cur.getCount()>0) {
while(cur.moveToNext()){
String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));
String name = cur.getString((cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)));
if(Integer.parseInt(cur.getString(
cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) >0){
Cursor pCur = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
new String[]{id},null);
while(pCur.moveToNext()){
Integer mobile = pCur.getInt(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
String email = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.ADDRESS));
Integer imageID = pCur.getInt(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Photo.PHOTO_FILE_ID));
String status = "available";
String time = "now";
long newId = myDb.insertRow(name,mobile,email,imageID,status,time);
Toast.makeText(MainActivity.this, "Name: " + name + "Phone no:" + mobile + "Email:" + email + "image:" + imageID + "image_thumbnail:" + status, Toast.LENGTH_LONG).show();
}
//closeDB();
pCur.close();
}
}
}
}
I'd suggest to use INSERT OR IGNORE INTO exampletable (UserId, UserName, ContactName) VALUES('1','UserName','ContactName'); // the variables are just examples;
or INSERT OR REPLACE INTO exampletable (UserId, UserName, ContactName) VALUES('1','UserName','ContactName');
Replace will update the existing entry with the new variable values and ignore is pretty self-explanatory.
This would fix your problem of doubled entrys and the checking of this would be done by your sqlite-database.
For checking the last modification date you should have a look at this stackoverflow answer.
You could simply retrieve this date and check wether it differs with the last time the contact was modified. But this will also be done for every contact, so not a perfect solution at all.
Related
I am creating an app in which I want to show my app icon in front of every contact if contact is associated with my app like in WhatsApp. I have searched a lot but didn't find any appropriate solution.
Fetch all the contacts from your phone like this.
public void getNumber(ContentResolver cr)
{
mItems = new ArrayList<String>();
Cursor phones = cr.query(Phone.CONTENT_URI, null, null, null, Phone.DISPLAY_NAME + " ASC");
while (phones.moveToNext())
{
String name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumberString = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
phoneNumberString.replace(" ", "");
contactName.add(name);
contactNumber.add(phoneNumberString);
mItems.add(name);
}
phones.close();
}
now send all these contacts to your server, compare each mobile number in your server database, and list only the contacts that are found in your server.
You need to maintain your own database, when registering user, save his number and while comparing, compare the fetched number to the register member's number in your own database
I have large number of strings, approximately 15,000 that I stored in a SQLite database using the following code:
void addKey(String key, String value, String table) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_KEY, key); // Contact Name
values.put(KEY_VALUE, value); // Contact Phone
// Inserting Row
db.insert(table, null, values);
db.close(); // Closing database connection
}
And then i search through that database using the following method in order to pick out any strings that match the key im looking for:
public String searchKeyString(String key, String table){
String rtn = "";
Log.d("searchKeyString",table);
// Select All Query
String selectQuery = "SELECT * FROM " + table;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Log.d("searchKeyString","searching");
if(cursor.getString(1).equals(key))
rtn = rtn + "," + cursor.getString(2);
} while (cursor.moveToNext());
}
cursor.close();
db.close();
Log.d("searchKeyString","finish search");
return rtn;
}
The goal is to do this in real time as the user is typing on the keep board so response time is key and the way it stands now it takes over a second to run through the search.
I considered reading all of the items into an array list initially and sorting through that which might be faster, but i thought an array list of that size might cause memory issues. What is the best way to search through these entries in my database?
A couple of things you can do...
Change the return to a StringBuilder until the end.
Only use a readable version of the database (that's probably not making much difference though)
Do not get a new instance of the database every time, keep it opened until you don't need it anymore
Query for only what you need with the "WHERE" argument in the SQL query.
See the code below with some changes:
// move this somewhere else in your Activity or such
SQLiteDatabase db = this.getReadableDatabase();
public String searchKeyString(String key, String table){
StringBuilder rtn = new StringBuilder();
Log.d("searchKeyString",table);
// Select All Query
String selectQuery = "SELECT * FROM " + table + " WHERE KEY_KEY=?";
Cursor cursor = db.rawQuery(selectQuery, new String[] {key});
// you can change it to
// db.rawQuery("SELECT * FROM "+table+" WHERE KEY_KEY LIKE ?", new String[] {key+"%"});
// if you want to get everything starting with that key value
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Log.d("searchKeyString","searching");
rtn.append(",").append(cursor.getString(2));
} while (cursor.moveToNext());
}
cursor.close();
Log.d("searchKeyString","finish search");
return rtn.toString();
}
Note even if you want this to happen in "real-time" for the user, you will still need to move this to a separate Thread or ASyncTask or you are going to run into problems....
You should consider using SELECT * FROM your-table LIMIT 50, for example. And you can put two buttons "Back", "Next" on your view. If every page has max 50 items, the user is at page 1, and he taps "Next", then you can use this query:
SELECT * FROM your-table LIMIT 50 OFFSET 50
If your table contains most of text-data, and you want to integrate search deeply into your app, consider using virtual table with FTS.
Let sqlite do the hard lifting.
First off, add an index to the field you're searching for, if you don't have one already. Secondly, don't do a SELECT all with manual table scan, but rather use a query in the form
SELECT column_value
FROM my_table
WHERE column_key LIKE "ABC%"
This returns the least amount of data, and the sql engine uses the index.
i dunno about better but maybe it'd be faster to make queries for the selected strings one by one.
public String searchKeyString(String key, String table){
String rtn = "";
Log.d("searchKeyString",table);
// Select All Query
String selectQuery = "SELECT * FROM " + table + "WHERE column_1 = " + key;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
rtn = rtn + "," + cursor.getString(2);
}
cursor.close();
db.close();
Log.d("searchKeyString","finish search");
return rtn;
}
EDIT:
Well i dunno how those custom keyboard apps do it, but those AutoCompleteTextViews are hooked up to adapters. you could just as easily make a cursorAdapter and hook your auto-complete view to it.
http://www.outofwhatbox.com/blog/2010/11/android-autocompletetextview-sqlite-and-dependent-fields/
http://www.opgenorth.net/blog/2011/09/06/using-autocompletetextview-and-simplecursoradapter-2/
I am trying to get the contact's phone number after I have retrieved their ID number from the built-in activity. However, whenever I query the database using the cursor in my code below -- I get zero rows returned even though there is a mobile number for the contact I have selected.
Can anyone point me in a better direction or show an example of how to get the contact's phone number AFTER getting their userID?
My code:
private Runnable getSMSRunnable() {
return new Runnable() {
public void run() {
Intent i = new Intent(Intent.ACTION_PICK,
ContactsContract.CommonDataKinds.Phone.CONTENT_URI);
startActivityForResult(i, CONTACTS_REQUEST_CODE);
}
};
}
Returns the Log output
content://com.android.contacts/data/6802
From which i pass the ID (6802) into a method which is designed to return the phone number from the ID with the given type (in this case ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE)
public static String getContactPhoneNumberByPhoneType(Context context, long contactId, int type) {
String phoneNumber = null;
String[] whereArgs = new String[] { String.valueOf(contactId), String.valueOf(type) };
Log.d(TAG, String.valueOf(contactId));
Cursor cursor = context.getContentResolver().query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ? and "
+ ContactsContract.CommonDataKinds.Phone.TYPE + " = ?", whereArgs, null);
int phoneNumberIndex = cursor
.getColumnIndexOrThrow(ContactsContract.CommonDataKinds.Phone.NUMBER);
Log.d(TAG, String.valueOf(cursor.getCount()));
if (cursor != null) {
Log.v(TAG, "Cursor Not null");
try {
if (cursor.moveToNext()) {
Log.v(TAG, "Moved to first");
Log.v(TAG, "Cursor Moved to first and checking");
phoneNumber = cursor.getString(phoneNumberIndex);
}
} finally {
Log.v(TAG, "In finally");
cursor.close();
}
}
Log.v(TAG, "Returning phone number");
return phoneNumber;
}
Which returns null for a phone number -- which means it cannot find the row that I am trying to access -- which means that something is wrong with my query -- however if I check a contact that has a mobile phone number -- how could I get a 0 row query?
Any help would be greatly appreciated. Thank you so much!
I found the answer.
The reason I was not getting any rows from the cursor was because I was using the line
ContactsContract.CommonDataKinds.Phone.CONTACT_ID
"The id of the row in the Contacts table that this data belongs to."
Since I was getting the URI from contacts table anyways -- this was not needed and the following should have been substituted. The ID was the one corresponding to the contact in the phone table not the raw contact.
ContactsContract.CommonDataKinds.Phone._ID
Exchanging the lines returned the correct results in the query. Everything seems to be working well at the moment.
This should work, (maybe try losing the type)
Phone numbers are stored in their own table and need to be queried separately. To query the phone number table use the URI stored in the SDK variable ContactsContract.CommonDataKinds.Phone.CONTENT_URI. Use a WHERE conditional to get the phone numbers for the specified contact.
if (Integer.parseInt(cur.getString(
cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
Cursor pCur = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
// Do something with phones
}
pCur.close();
}
Perform a second query against the Android contacts SQLite database. The phone numbers are queried against the URI stored in ContactsContract.CommonDataKinds.Phone.CONTENT_URI. The contact ID is stored in the phone table as ContactsContract.CommonDataKinds.Phone.CONTACT_ID and the WHERE clause is used to limit the data returned.
I'm trying to build a contacts-managing application. On my phone I have contacts from a couple of accounts including Facebook and HTC Facebook. For some reason I cannot retrieve these contacts from the RawContacts table of ContactsContract:
managedQuery(ContactsContract.RawContacts.CONTENT_URI, new String[] {
ContactsContract.RawContacts._ID,
ContactsContract.RawContacts.CONTACT_ID,
ContactsContract.RawContacts.ACCOUNT_NAME,
ContactsContract.RawContacts.ACCOUNT_TYPE,
}, ContactsContract.RawContacts.ACCOUNT_TYPE + " = 'com.facebook.auth.login'", null, null)
This query returns no results. If I repace the account type with com.htc.socialnetwork.facebook, I still get no results. There are many Facebook contacts on my phone; how to retrieve them?
I think I found the answer here: How to get a contact's facebook id or url from native contacts / content resolver?
Seems that access to Facebook contacts is restricted.
Yes, the Facebook contacts are secured, but can be hijacked with a little sneaky SQLite Injection. NO- I am not going to post here on this page, but is there any reason you do not just use Facebook authentication and get the contacts THAT way? The Facebook contacts don't really have anything useful in them anyway, and it is just more secure and more likely to work ALL the
There is definitely no way to do this in a standard way. So, we must use an SQLi injection (as roger commented) in order to be able to hack the contacts database and get the Facebook avatars. The following code works on most Motorolas, which use Motoblur, on Android 2.2 or higher:
public static Bitmap loadFacebookAvatar(Context context, long personId) {
String[] rawProjection = {ContactsContract.RawContacts._ID};
String contactIdAssertion = ContactsContract.RawContacts.CONTACT_ID + " = " + personId;
String rawWhere = new StringBuilder()
.append(contactIdAssertion).append(") UNION ALL SELECT ")
.append(ContactsContract.RawContacts._ID).append(" FROM view_raw_contacts WHERE (")
.append(contactIdAssertion).toString();
Cursor query = context.getContentResolver().query(ContactsContract.RawContacts.CONTENT_URI,
rawProjection,
rawWhere, null, null);
if (query != null && query.moveToFirst()) {
do {
long id = query.getLong(query.getColumnIndex(ContactsContract.RawContacts._ID));
String[] projection = {ContactsContract.CommonDataKinds.Photo.PHOTO};
Uri uri = ContactsContract.Data.CONTENT_URI;
String mimeTypeAssertion = ContactsContract.Data.MIMETYPE + "='" + ContactsContract.CommonDataKinds.Photo.CONTENT_ITEM_TYPE + "'";
String photoAssertion = ContactsContract.CommonDataKinds.Photo.PHOTO + " IS NOT NULL";
String rawContactIdAssertion = ContactsContract.CommonDataKinds.Photo.RAW_CONTACT_ID + " = " + id;
String where = new StringBuilder().append(mimeTypeAssertion).append(" AND ")
.append(photoAssertion).append(" AND ").append(rawContactIdAssertion)
.append(") UNION ALL SELECT ").append(ContactsContract.CommonDataKinds.Photo.PHOTO)
.append(" FROM view_data WHERE (").append(photoAssertion).append(" AND ")
.append(rawContactIdAssertion).toString();
Cursor photoQuery = context.getContentResolver().query(uri, projection, where, null, null);
if (photoQuery != null && photoQuery.moveToFirst()) {
do {
byte[] photoData = photoQuery.getBlob(photoQuery.getColumnIndex(ContactsContract.CommonDataKinds.Photo.PHOTO));
if (photoData != null) {
return BitmapFactory.decodeByteArray(photoData, 0, photoData.length, null);
}
} while (photoQuery.moveToNext());
}
} while (query.moveToNext());
}
return null;
}
For other handsets you must get the contacts database and analyze it in order to determine how to apply the SQL Injection, which requires a rooted phone.
I am trying to get the contact's phone number after I have retrieved their ID number from the built-in activity. However, whenever I query the database using the cursor in my code below -- I get zero rows returned even though there is a mobile number for the contact I have selected.
Can anyone point me in a better direction or show an example of how to get the contact's phone number AFTER getting their userID?
My code:
private Runnable getSMSRunnable() {
return new Runnable() {
public void run() {
Intent i = new Intent(Intent.ACTION_PICK,
ContactsContract.CommonDataKinds.Phone.CONTENT_URI);
startActivityForResult(i, CONTACTS_REQUEST_CODE);
}
};
}
Returns the Log output
content://com.android.contacts/data/6802
From which i pass the ID (6802) into a method which is designed to return the phone number from the ID with the given type (in this case ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE)
public static String getContactPhoneNumberByPhoneType(Context context, long contactId, int type) {
String phoneNumber = null;
String[] whereArgs = new String[] { String.valueOf(contactId), String.valueOf(type) };
Log.d(TAG, String.valueOf(contactId));
Cursor cursor = context.getContentResolver().query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ? and "
+ ContactsContract.CommonDataKinds.Phone.TYPE + " = ?", whereArgs, null);
int phoneNumberIndex = cursor
.getColumnIndexOrThrow(ContactsContract.CommonDataKinds.Phone.NUMBER);
Log.d(TAG, String.valueOf(cursor.getCount()));
if (cursor != null) {
Log.v(TAG, "Cursor Not null");
try {
if (cursor.moveToNext()) {
Log.v(TAG, "Moved to first");
Log.v(TAG, "Cursor Moved to first and checking");
phoneNumber = cursor.getString(phoneNumberIndex);
}
} finally {
Log.v(TAG, "In finally");
cursor.close();
}
}
Log.v(TAG, "Returning phone number");
return phoneNumber;
}
Which returns null for a phone number -- which means it cannot find the row that I am trying to access -- which means that something is wrong with my query -- however if I check a contact that has a mobile phone number -- how could I get a 0 row query?
Any help would be greatly appreciated. Thank you so much!
I found the answer.
The reason I was not getting any rows from the cursor was because I was using the line
ContactsContract.CommonDataKinds.Phone.CONTACT_ID
"The id of the row in the Contacts table that this data belongs to."
Since I was getting the URI from contacts table anyways -- this was not needed and the following should have been substituted. The ID was the one corresponding to the contact in the phone table not the raw contact.
ContactsContract.CommonDataKinds.Phone._ID
Exchanging the lines returned the correct results in the query. Everything seems to be working well at the moment.
This should work, (maybe try losing the type)
Phone numbers are stored in their own table and need to be queried separately. To query the phone number table use the URI stored in the SDK variable ContactsContract.CommonDataKinds.Phone.CONTENT_URI. Use a WHERE conditional to get the phone numbers for the specified contact.
if (Integer.parseInt(cur.getString(
cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
Cursor pCur = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
// Do something with phones
}
pCur.close();
}
Perform a second query against the Android contacts SQLite database. The phone numbers are queried against the URI stored in ContactsContract.CommonDataKinds.Phone.CONTENT_URI. The contact ID is stored in the phone table as ContactsContract.CommonDataKinds.Phone.CONTACT_ID and the WHERE clause is used to limit the data returned.