{"id":4201,"date":"2010-05-27T10:00:54","date_gmt":"2010-05-27T04:30:54","guid":{"rendered":"http:\/\/mobisoftinfotech.com\/?p=4201"},"modified":"2025-10-31T12:34:22","modified_gmt":"2025-10-31T07:04:22","slug":"call-log-deletion-in-android","status":"publish","type":"post","link":"https:\/\/mobisoftinfotech.com\/resources\/blog\/android\/call-log-deletion-in-android","title":{"rendered":"Call log deletion in Android"},"content":{"rendered":"

In order to delete a call log entry in android device\/ Emulator, first of all, we must know where the log information is stored
. \u0437\u0430\u0439\u043c 15000 \u0440\u0443\u0431\u043b\u0435\u0439<\/a>. Android stores the log information in its internal database as a content provider \u2013 “content:\/\/call_log\/calls”.<\/p>\n\n\n\n

generic levitra price<\/a><\/div>\n\n\n\n

Call log Basics<\/strong><\/p>\n\n\n\n

A content provider is used to share data between multiple applications. In Android, a content provider is a specialized type of data store that exposes standardized ways to retrieve and manipulate the stored data.<\/p>\n\n\n\n

The call log data is used by multiple applications and hence android stores<\/a> it as a content provider. The Call Log provider contains information about placed and received calls.<\/p>\n\n\n\n

To do:<\/span><\/strong><\/p>\n\n\n\n

    \n
  1. Get uri for call log content provider.<\/li>\n\n\n\n
  2. Query the content provider.<\/li>\n\n\n\n
  3. Search the row in result set(curser) .<\/li>\n\n\n\n
  4. Delete the row from content provider.<\/li>\n<\/ol>\n\n\n\n

    URI<\/span><\/strong><\/p>\n\n\n\n

    The call log content provider exposes a public URI “content:\/\/call_log\/calls” for recent phone calls that uniquely identifies its data set.<\/p>\n\n\n\n

    Uri allCalls = Uri.parse(“content:\/\/call_log\/calls”);<\/p>\n\n\n\n

    Querying a Content Provider<\/span><\/strong><\/p>\n\n\n\n

    To access database we need to query the content provider by using the uri which the given content provider exposes.<\/p>\n\n\n\n

    Cursor c = managedQuery(allCalls, null, null, null, null);<\/p>\n\n\n\n

    Reading retrieved data for deleting particular log entry<\/span><\/strong><\/p>\n\n\n\n

    Cursor c stores record set of results regarding the log details. So, now in order to delete any record single record, call ContentResolver.delete()<\/code> with the URI of a specific row.<\/p>\n\n\n\n

    To delete multiple rows, call ContentResolver.delete()<\/code> with the URI of the type of record to delete (for example, android.provider.CallLog.Calls.CONTENT_URI<\/code>) and an SQL WHERE<\/code> clause defining which rows to delete.<\/p>\n\n\n\n

    Here we will delete the row by comparing \u2018NUMBER\u2019 column with the number entered by user.<\/p>\n\n\n\n

    while<\/strong>(c.moveToNext())<\/p>\n\n\n\n

    {<\/p>\n\n\n\n

    \/\/ get particular number for which log entry is to be deleted.<\/p>\n\n\n\n

    String strNumber= etNumberForCall.getText().toString();<\/p>\n\n\n\n

    \/\/ make a selection clause.<\/p>\n\n\n\n

    String queryString= “NUMBER='” + strNumber + “‘”;<\/p>\n\n\n\n

    Log.v<\/em>(“Number”, queryString);<\/p>\n\n\n\n

    CallLogActivity.this<\/strong>.getContentResolver().delete(UriCalls, queryString, null<\/strong>);<\/p>\n\n\n\n

    }<\/p>\n\n\n\n

    Screen Shorts:<\/span><\/strong><\/p>\n\n\n\n