How to change old version code to newest version swift ios code

Question

I want change this code

for (var i = tableView(self.tableView , numberOfRowsInSection: 0) - 1; i>0; i-=1 ) {
     tableViewHeight = height + tableView(self.tableView, heightForRowAtIndexPath: NSIndexPath(forRow: i, inSection: 0) )
}

to Swift. I got an error at for.

Possible duplicate of [Decrement index in a loop after Swift C-style loops deprecated](http://stackoverflow.com/questions/35032182/decrement-index-in-a-loop-after-swift-c-style-loops-deprecated) — Nirav D, Jan 04 '17 at 12:21

score 0 · Answer 1 · answered Jan 04 '17 at 12:03

0

You can try to use this model as reference and migrate your code:

for i in (0..<count).reversed() {
    print(i)
}

answered Jan 04 '17 at 12:03

Lexorus

199
7

for i in (0...tableView(self.tableView , numberOfRowsInSection: 0) - 1).reversed() { } – MAS. John Jan 04 '17 at 12:07
@user7345006, instead of `a ... (b - 1)` use `a ..< b`. – user28434'mstep Jan 04 '17 at 12:09
cant use like that..because i have tableView(self.tableView , numberOfRowsInSection: 0) – MAS. John Jan 04 '17 at 12:15
@user7345006, can you explain why not? What's the problem? – user28434'mstep Jan 04 '17 at 12:16
@user7345006, `..<` not `...<`, **two dots, not three dots** – user28434'mstep Jan 04 '17 at 12:22

score 0 · Answer 2 · answered Jan 04 '17 at 12:30

0

In SWIFT 3

    let count = tableView(self.tableView, numberOfRowsInSection: 0) as Int
    for i in (0 ..< count).reversed() {

        tableViewHeight = height + tableView(self.tableView, heightForRowAt: IndexPath(row: i, section: 0))
    }

answered Jan 04 '17 at 12:30

Lineesh K Mohan

1,702
14
18

How to change old version code to newest version swift ios code

2 Answers2