Hey, I'd like to know if there is a way to know if the content
provider of callings has changed. I mean, if I make a call, or I
answer a call, it returns a "flag" that a new log has been added to
the call log, or the place where Android store informations about
callings.
Because, when I make a call, Android stores the number, the contact
name(if exists), the hour of the calling, the duration, blah blah
blah, all in the content provider. So is there a way to capture this
"flag" that says the content provider of callings is bigger, I mean,
that a new data has been inserted on the content provider
CallLog.Calls.
So, I still have a lot of doubts related to this issue. I don't know
where to register the content observer. My intention is when something
change in the CallLog content provider, the insert method of the code
will be used.
I mean, the code wont do anything unless new data has been added to
the CallLog content provider. If some data has been added to the
CallLog content provider, then the code will query the new data, and
then will insert. I wanna do this because withou a Content observer
the application was inserting data in the database that was already
inserted every time I run the application, got it?
So here is my code. If someone could tell me where to put the
registerContentObserver and everything else is needed I thank you.
---- > Here is My Code <----
public class RatedCalls extends ListActivity {
private static final String LOG_TAG = "RatedCallsObserver";
private Handler handler = new Handler();
private RatedCallsContentObserver callsObserver = null;
private SQLiteDatabase db;
private Cursor cursor;
private CallDataHelper dh = null;
ContentValues values;
StringBuilder sb = new StringBuilder();
OpenHelper openHelper = new OpenHelper(RatedCalls.this);
class RatedCallsContentObserver extends ContentObserver {
public RatedCallsContentObserver(Handler h) {
super(h);
}
public void onChange(boolean selfChange) {
Log.d(LOG_TAG, "RatedCallsContentObserver.onChange( " +
selfChange
+ ")");
fillList();
super.onChange(selfChange);
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
registerContentObservers();
getBaseContext().getContentResolver().notifyChange(
android.provider.CallLog.Calls.CONTENT_URI,
null);
}
@Override
public void onStart() {
super.onStart();
registerContentObservers();
}
@Override
public void onStop() {
super.onStop();
unregisterContentObservers();
}
private void fillList() {
cursor = getContentResolver().query(
android.provider.CallLog.Calls.CONTENT_URI,
null, null, null,
android.provider.CallLog.Calls.DATE + " DESC ");
dh = new CallDataHelper(this);
db = openHelper.getWritableDatabase();
startManagingCursor(cursor);
int numberColumnId = cursor
.getColumnIndex(android.provider.CallLog.Calls.NUMBER);
int durationId = cursor
.getColumnIndex(android.provider.CallLog.Calls.DURATION);
int contactNameId = cursor
.getColumnIndex(android.provider.CallLog.Calls.CACHED_NAME);
int dateId =
cursor.getColumnIndex(android.provider.CallLog.Calls.DATE);
int numTypeId = cursor
.getColumnIndex(android.provider.CallLog.Calls.CACHED_NUMBER_TYPE);
Date dt = new Date();
int hours = dt.getHours();
int minutes = dt.getMinutes();
int seconds = dt.getSeconds();
String currTime = hours + ":" + minutes + ":" + seconds;
ArrayList<String> callList = new ArrayList<String>();
cursor.moveToFirst();
String contactNumber = cursor.getString(numberColumnId);
String contactName = cursor.getString(contactNameId);
String duration = cursor.getString(durationId);
String callDate = DateFormat.getDateInstance().format(dateId);
String numType = cursor.getString(numTypeId);
values = new ContentValues();
values.put("contact_id", 1);
values.put("contact_name", contactName);
values.put("number_type", numType);
values.put("contact_number", contactNumber);
values.put("duration", duration);
values.put("date", callDate);
values.put("current_time", currTime);
values.put("cont", 1);
db.insert(CallDataHelper.TABLE_NAME, null, values);
Toast.makeText(getBaseContext(), "Inserted!",
Toast.LENGTH_LONG);
callList.add("Contact Number: " + contactNumber + "\nContact
Name: "
+ contactName + "\nDuration: " + duration +
"\nDate: "
+ callDate);
setListAdapter(new ArrayAdapter<String>(this, R.layout.listitem,
callList));
ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new
android.widget.AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View
view,
int position, long id) {
Toast.makeText(getApplicationContext(),
((TextView) view).getText(),
Toast.LENGTH_SHORT).show();
}
});
}
private void registerContentObservers() {
ContentResolver cr = getContentResolver();
callsObserver = new RatedCallsContentObserver(handler);
cr.registerContentObserver(android.provider.CallLog.Calls.CONTENT_URI,
true, callsObserver);
}
private void unregisterContentObservers() {
ContentResolver cr = getContentResolver();
if (callsObserver != null) {
cr.unregisterContentObserver(callsObserver);
callsObserver = null;
}
}
}
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