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Chengyu Deng
7,879 PointsHow do we know xcode will execute n times which n is the total number of rows?
How do we know xcode will execute n times which n is the total number of rows? The cellForRowAtIndexPath method only returns a single cell which has a specific indexPath. But when we run the project, all the fruits' names are assign to the corresponding rows. Is there any loop executed behind the scene? I am a little confuse... Please help!
1 Answer
Steven Deutsch
21,046 PointsHey Chengyu Deng,
Your UITableView has a method that takes an argument of number of rows in section.
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return itemsOfArray.count
}
You use the count property on the array you are displaying in your masterView and return the number of items in that array. This lets your tableView know how many rows it needs to create.
Good Luck
Chengyu Deng
7,879 PointsChengyu Deng
7,879 PointsYeah, I know there is a method which returns the number of rows in section. In the master view controller, we are simply writing some methods for this class. I was wondering how this methods are called when the project is running. Thanks!