Question

I am having an issue where the item is getting inserted to my db twice. I dont have 2 insert statements.

I am trying to check if an array’s element is empty.

Here are snippets of my code

In my main activity

private String[] dateTimeDispStr= new String[2];

in onCreate:

dateTimeDispStr[0]=null;
dateTimeDispStr[1]=null;

Other parts of same activity:

//-------------------------------------------update time----------------------------------------//    
public void updatetime()
{
    dateTimeDispStr[0]=new StringBuilder()
    .append(pad(mhour)).append(":")
    .append(pad(mminute)).toString();

    tdv.editRow(this, dateTimeDispStr);
    if(dateTimeDispStr[1]!=null){
        update();
    }

}

//-------------------------------------------update date----------------------------------------//    
private void updateDate() {
    dateTimeDispStr[1]=new StringBuilder()
    // Month is 0 based so add 1
    .append(mMonth + 1).append("/")
    .append(mDay).append("/")
    .append(mYear).append(" ").toString();

    tdv.editRow(this, dateTimeDispStr);
    if(dateTimeDispStr[0]!=null){
        update();
    }

}


SimpleDateFormat formatter = new SimpleDateFormat("MM/dd/yyyy HH:MM");

public void update(){
    Calendar cal = Calendar.getInstance();
    cal.set(mYear, mMonth + 1, mDay, mhour, mminute, 0);
    String date = formatter.format(cal.getTime());

    tdi.setDate(date.split(" ")); // split makes an array of ["date", "time"]
    db.addItem(tdi);
    Log.d("Item set in the db", "The item: " + date);
}

Here is my database handler

// Adding new ToDoItem
public void addItem(ToDoItem item) {
        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(KEY_TASK, item.getTDItem()); // item task
        values.put(KEY_DATE, item.getDate()); // item date
        values.put(KEY_PRIORITY, item.getPriority()); // item priority

        // Inserting Row
        db.insert(TABLE_TDL, null, values);
        db.close(); // Closing database connection
    }

tdv.editRow edits the row on my UI that is extending a table layout. I will add the functionality for checking for null in a sec. It essentially appends the row that already had the task of the todo item, but with date and time I would like to add them to that row

I understand that I call update in both methods, but that is because if the user clicks either button first.

Answer 1

Instead of all that I would simply fetch a Calendar instance, populate it with your date / time variables, and use a DateFormat to build a localized String.

Try this update() by itself:

// Create a field variable
SimpleDateFormat formatter = new SimpleDateFormat("MM/dd/yyyy hh:mm"); // HH for 24hr

public void update(){
    Calendar cal = Calendar.getInstance();
    cal.set(mYear, mMonth + 1, mDay, mhour, mminute, 0);
    String date = formatter.format(cal.getTime());

    tdi.setDate(date.split(" ")); // split makes an array of ["date", "time"]
    db.addItem(tdi);
    Log.d("Item set in the db", "The item: " + date);
}

(I don’t have a working compiler at the moment so forgive any minor flaws…)
Read about customizing the SimpleDateFormat string here.