如何以编程方式从Android恢复已删除的通话记录

Question

有没有办法以编程方式从Android手机恢复已删除的通话记录？谷歌搜索为此目的显示了几个像dr.fone这样的应用程序。但我找不到任何相同的示例代码。我使用以下代码从android获取调用日志，但它只包含现有的调用日志。

private void getCallDetails() throws Exception{

    StringBuffer sb = new StringBuffer();
    Cursor managedCursor = managedQuery( CallLog.Calls.CONTENT_URI,null, null,null, null);
    int number = managedCursor.getColumnIndex( CallLog.Calls.NUMBER );
    int type = managedCursor.getColumnIndex( CallLog.Calls.TYPE );
    int date = managedCursor.getColumnIndex( CallLog.Calls.DATE);
    int duration = managedCursor.getColumnIndex( CallLog.Calls.DURATION);
    sb.append( "Call Details :");
    while ( managedCursor.moveToNext() ) {
        String phNumber = managedCursor.getString( number );
        String callType = managedCursor.getString( type );
        String callDate = managedCursor.getString( date );
        Date callDayTime = new Date(Long.valueOf(callDate));
        String callDuration = managedCursor.getString( duration );
        String dir = null;
        int dircode = Integer.parseInt( callType );
        switch( dircode ) {
            case CallLog.Calls.OUTGOING_TYPE:
                dir = "OUTGOING";
                break;

            case CallLog.Calls.INCOMING_TYPE:
                dir = "INCOMING";
                break;

            case CallLog.Calls.MISSED_TYPE:
                dir = "MISSED";
                break;
        }
        sb.append( "\nPhone Number:--- "+phNumber +" \nCall Type:--- "+dir+" \nCall Date:--- "+callDayTime+" \nCall duration in sec :--- "+callDuration );
        sb.append("\n----------------------------------");
    }
    managedCursor.close();
    call.setText(sb);
}