WebView笔记

Note
In apps that run in iOS 8 and later, use the WKWebView class instead of using UIWebView. Additionally, consider setting the WKPreferences property javaScriptEnabled to NO if you render files that are not supposed to run JavaScript.

Important
An iOS app linked on or after iOS 10.0 must include in its Info.plist file the usage description keys for the types of data it needs to access or it will crash. To access a user’s photo data specifically, it must include NSPhotoLibraryUsageDescription and NSCameraUsageDescription.

Use the loadHTMLString:baseURL: method to begin loading local HTML files or the loadRequest: method to begin loading web content. Use the stopLoading method to stop loading, and the loading property to find out if a web view is in the process of loading.

By default, a web view automatically converts telephone numbers that appear in web content to Phone links. When a Phone link is tapped, the Phone app launches and dials the number. To turn off this default behavior, set the dataDetectorTypes property with a UIDataDetectorTypes bitfield that does not contain the UIDataDetectorTypePhoneNumber flag.

Important
You should not embed UIWebView or UITableView objects in UIScrollView objects. If you do so, unexpected behavior can result because touch events for the two objects can be mixed up and wrongly handled.

摘自：apple 帮助文档 UIKit > UIWebView