I want to implement a program which inserts details in database everytime the call is made or sms is sent. Should I use a broadcast receiver or content observer or Service ? what would be appropriate? I am new to android and urgently need help on this.
I have done the following code uptill now. The problem with this is when first time the code is run then for example call log has 8 records so these 8 records are inserted in database. Then if any change in call log is made for example i make another call then 17 records are shown in database instead of 9. Please help where am i going wrong ?
package com.calllogdb;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Date;
import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.content.ContentValues;
import android.database.ContentObserver;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;
import android.view.Menu;
import android.widget.Toast;
import static com.calllogdb.Constants.KEY_ContactNum ;
import static com.calllogdb.Constants.KEY_ContactName;
import static com.calllogdb.Constants.KEY_Duration;
import static com.calllogdb.Constants.KEY_Date ;
import static com.calllogdb.Constants.KEY_NumType ;
import static com.calllogdb.Constants.KEY_CurrTime ;
import static com.calllogdb.Constants.TABLE_NAME;
public class MainActivity extends Activity {
private Helper helper = new Helper(this);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.getApplicationContext()
.getContentResolver()
.registerContentObserver(
android.provider.CallLog.Calls.CONTENT_URI, true,
new CallLogObserver(new Handler()));
try {
addLog();
}
finally {
helper.close();
}
}
private void addLog() {
SQLiteDatabase db;
Cursor cursor = getContentResolver().query(
android.provider.CallLog.Calls.CONTENT_URI, null, null, null,
android.provider.CallLog.Calls.DATE + " DESC ");
db = helper.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>();
if (cursor.moveToFirst()) {
do {
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);
ContentValues values = new ContentValues();
values.put(KEY_ContactName, contactName);
values.put(KEY_NumType, numType);
values.put(KEY_ContactNum, contactNumber);
values.put(KEY_Duration, duration);
values.put(KEY_Date, callDate);
values.put(KEY_CurrTime, currTime);
db.insert(TABLE_NAME, null, values);
callList.add("Contact Number: " + contactNumber
+ "\nContact Name: " + contactName + "\nDuration: "
+ duration + "\nDate: " + callDate);
} while (cursor.moveToNext());
}
Toast.makeText(getBaseContext(), "Inserted!", Toast.LENGTH_LONG).show();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
public class CallLogObserver extends ContentObserver
{
public CallLogObserver(Handler handler) {
super(handler);
}
@Override
public boolean deliverSelfNotifications() {
return true;
}
@Override
public void onChange(boolean selfChange) {
Log.d("LOG_TAG", "MyContentObserver.onChange( " + selfChange
+ ")");
super.onChange(selfChange);
addLog();
}
}
}
Whenever i am making a call it gets notified and inserts whole set of records instead of only the latest one.What should i do to prevent this?
Thanks