![]() Implement cellForRowAt to dequeue and cell then show the correct item from one of the two string arrays depending on which table this is.Īgain, this is all code from before iOS 11, so it should be nothing new to you.Implement numberOfRowsInSection so that each table view has the correct number of items based on its string array.Configure both table views to use the view controller as their data source, give them hard-coded frames, register a re-use cell, then add them to the view.Create two table views, and create two string array filled with "Left" and "Right".That being said, I'm not going to explain this code in detail because it's just existing iOS code and I don't want to waste your time. I'm not going to use IB here because it's clearer just to write it all in code. Now we need to put two table views in there, both filled with dummy data. First, we need a basic app to work with, so we're going to write some code to create two table views filled with example data we can copy.Ĭreate a new Single View App template in Xcode, then open ViewController.swift for editing. Let's take a look at how to implement simple drag and drop to let you copy rows between two tables. You can also add drag and drop support to other components, and as you'll see this actually takes less work. ![]() Helpfully, both UITableView and UICollectionView both come with some degree of drag and drop support built in, but there's still a fair amount of code to write in order to get them working. Note: on iPhone drag and drop is limited to a single app – you can't drag content to other apps. In iOS 11, and particularly on iPad, multitasking has gone into overdrive, with drag and drop being a huge part of that: you can move content inside apps or between apps, you can use your other hand to manipulate apps while dragging, and you can even use the new dock system to activate other apps mid-drag. ![]() You get seven complete coding projects in tutorial form plus more technique projects that deep-dive specific new technologies – it's the fastest way to get up to speed with iOS 11!ĭrag and drop is something we've always taken for granted on desktop operating systems, but its absence on iOS really held back multitasking – until iOS 11, that is. You might want to buy my new book: Practical iOS 11. I've provided as much code as I can to help give you a head start with working apps, but ultimately a great deal of iOS 11 involves complex functionality that you simply can't avoid.īefore you continue, you might find these articles useful pre-reading: Warning: Some of these features are not for the faint hearted. I've tried to summarize the key changes below so you can get started with them straight away, providing code where feasible. Paul Hudson June 20th 2016 11 was announced at WWDC 2017, and introduces a massive collection of powerful features such as Core ML, ARKit, Vision, PDFKit, MusicKit, drag and drop, and more.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |