ios9

首先，UITableView有两种风格：UITableViewStylePlain和UITableViewStyleGrouped。 然后，UITableViewCellStyle的样式 typedef NS_ENUM(NSInteger, UITableViewCellStyle) { UITableViewCellStyleDefault, // 左侧显示textLabel（不显示detailTextLabel），imageView可选（显示在最左边） UITableViewCellStyleValue1, // 左侧显示textLabel、右侧显示detailTextLabel（默认蓝色），imageView可选（显示在最左边） UITableViewCellStyleValue2, // 左侧依次显示textLabel(默认蓝色)和detailTextLabel，imageView可选（显示在最左边） UITableViewCellStyleSubtitle // 左上方显示textLabel，左下方显示detailTextLabel（默认灰色）,imageView可选（显示在最左边）}; 当然也可以自定义TableViewCell。 要使用UITableView必须要实现两个协议UITableViewDataSource和UITableViewDelegate

On IOS9 if an iPhone is in battery save mode, the callback application:didReceiveRemoteNotification:fetchCompletionHandler: is not called. Instead I get the following warning in the console High Priority Push: com.your-company.app - Battery Saver Mode Enabled When using PushKit it does seem to work. Does anybody else experience this behaviour? Any other workarounds? I believe, unfortunately, that this is the intended behavior. The documentation about push notifications constantly hedges their reliability. E.g.: https://developer.apple.com/library/mac/documentation/NetworkingInternet/Conceptual

i try to make my app just in portrait mode iam using navigationcontroller i get this error iam usring Xcode7 and Swift 2 And Target System IOS 9.3 Declaration is only valid at file scope extension UINavigationController { public override func supportedInterfaceOrientations() -> Int { return visibleViewController.supportedInterfaceOrientations() } public override func shouldAutorotate() -> Bool { return visibleViewController.shouldAutorotate() } } extension UITabBarController { public override func supportedInterfaceOrientations() -> Int { if let selected = selectedViewController { return

This question already has an answer here: String length in Swift 1.2 and Swift 2.0 [duplicate] 5 answers let newLength = countElements(textField.text) + countElements(string) - range.length; When i'm running my app, it suddenly shows the error of unresolved identifier. It appears you are attempting to use Swift 1.0 code in a later version of Swift. countElements was removed in iOS 8.3 (with Swift 1.2) -- you need to be logged in to see the release notes in Swift 2.0, it is now str.characters.count 来源： https://stackoverflow.com/questions/31337317/use-of-unresolved-identifier-countelements

In iOS 9, when I segue from a table to a navigation controller, the nav bar and the tab bar disappear. As a result, my users will be hosed. How to fix it? My StoryBoard structure is basically this: ->Tab Bar Controller->Nav Controller->Table View->Nav Controller->Table View->.... When I select a row in the first table view, the segue occurs, but the tab bar and back buttons disappear. ----> Notice the missing parts in the right picture. DTS request has been filed, bug was reported months ago etc. Yes, as I stated, you can't nest a navigationController within a navigationController, or you will

I'm using Swift 2 and Alamofire with both iOS 9 and iOS 8. In iOS 8 all my requests to my API work fine. In iOS 9 they immediately fail with a -1004 NSURLErrorDomain with the message "Could not connect to the server.". I read about Apple's change with App Transport Security and already added the entry to my Plist to disable it and allow insecure connections. I'm at a loss as to the reason for this error...any help would be great! After messing around with a ton of different keys and values to make it work, I finally have come up with this to make it function in iOS9.1: <key

新的触摸体验——iOS9的3D Touch 一、引言 在iphone6s问世之后，很多果粉都争先要体验3D Touch给用户带来的额外维度上的交互，这个设计之所以叫做3D Touch，其原理上是增加了一个压力的感触，通过区分轻按和重按来进行不同的用户交互。 二、在模拟器上学习和测试3D Touch 3D Touch是一个很新颖的设计，可是苹果文档有言： With Xcode 7.0 you must develop on a device that supports 3D Touch. Simulator in Xcode 7.0 does not support 3D Touch. 看到这句话心是不是凉了一半，是的，xcode7是支持3D Touch开发的，可是模拟器并不支持这个手势，我们只能在真机上进行学习与测试，但是在IT的世界，从来都不缺拯救世界的人物，github上有人为我们提供了这样的一个插件，可以让我们在模拟器上进行3D Touch的效果测试： git地址： https://github.com/DeskConnect/SBShortcutMenuSimulator 。 附.SBShortcutMenuSimulator的安装和使用 其实安装和使用并不需要怎么介绍，git主页里介绍的很清楚，这里在记录一遍，其中只有一点需要注意，如果你像我一样

更加智能的搜索方案——iOS9搜索功能新api 一、引言 iOS9中为我们提供了许多新的api，搜索功能的加强无疑是其中比较显眼的一个。首先，我们先设想一下：如果在你的app中定义一种标识符，在siri和搜索中，可以用过这个标识符搜索到你的app，是不是很棒？不，这还差得远，你可以定义任意的数据，使其在搜索和siri中可以快速检索到，这样的搜索功能是不是非常酷？不，还有更cool的，你甚至可以在你的网站中添加一些标志，使apple的爬虫可以检索到，那样，即使用户没有安装你的app，也可以在搜索中获取到相应的信息，这太强大了，对吧。 二、3种全新的搜索模式 ‍1、NSUserActivity‍ 我们可以在项目中使用相应的函数来添加一些用户的活跃元素，使我们可以在搜索中通过搜索这样的活跃元素展现我们的app。例如： //创建一个对象，这里的type用于区分搜索的类型 NSUserActivity *userActivity = [[NSUserActivity alloc] initWithActivityType: @"myapp"]; //显示的标题 userActivity.title = @"我的app"; // 搜索的关键字 userActivity.keywords = [NSSet setWithArray: @[@"sea",@"rch"]]; // 支持Search